Caterpillartrack-type tractor
Caterpillar D6N
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar D6N is a mid-size track-type tractor (crawler dozer) built for production dozing, grading, ripping, and site-prep work, occupying a power class of roughly 140-180 hp between the smaller D5/D6K and the larger D6R/D6T. Cat produced the D6N across three engine/emissions generations: the original Cat 3126B DITAAC diesel rated near 108 kW (145 hp) net for Tier 2/Tier 3 markets, a Cat C6.6 ACERT rated near 150 hp net for Tier 4 Interim/Stage IIIB, and a final Cat C7.1 ACERT rated near 124 kW (166 hp) net for Tier 4 Final/Stage IV, the last generation adding diesel particulate filtration and selective catalytic reduction with diesel exhaust fluid, including WH waste-handler versions for landfill and wood-waste sites. Operating weight spans roughly 15,400-18,350 kg (about 34,000-40,450 lb) depending on Std, XL, or LGP undercarriage and blade selection. Built from the early 2000s into the late 2010s, the D6N succeeded the D6M in Cat's mid-size dozer line and was phased out when Caterpillar restructured its dozer naming around 2019, with the equivalent power/weight class continuing under the D5 nameplate. Buyers could order Std, XL, or LGP undercarriage, S/SU/VPAT blade choices, and either differential-steering or finger-tip-control operation.
Across its production run the D6N changed mainly in response to tightening emissions rules rather than a ground-up redesign: the engine swapped twice (3126B DITAAC to C6.6 ACERT to C7.1 ACERT) while the planetary-powershift drivetrain, SystemOne sealed-and-lubricated undercarriage, and hydraulic/steering architecture carried forward with incremental refinements, such as a lock-up torque-converter clutch on later units that Cat credited with meaningful productivity and fuel-economy gains, plus factory grade-control options added toward the end of production. That long, three-generation run left a very large used population spanning a wide condition and price spectrum in today's resale market, keeping parts interchange, engine-family identification, and undercarriage condition central to valuation. Because engine, aftertreatment, and some driveline components are not interchangeable across the 3126B, C6.6, and C7.1 generations, correctly identifying the serial-number era before sourcing parts is essential, and the model's continued popularity keeps both used-equipment and parts channels active for owners still running older units.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Caterpillar D6N specifications
Overview / Series
| Machine | Caterpillar D6N track-type tractor (medium dozer class), successor to D6R/D6H line, produced in three successive engine/emissions generations |
| Series 1 (original) | Approx. 2003 to ~2011 introduction; Cat 3126B DITAAC mechanical/HEUI engine, pre-Tier 4 emissions |
| Series 2 | D6N Tier 4 Interim / EU Stage IIIB (~2011-2015); Cat C6.6 ACERT engine |
| Series 3 | D6N Tier 4 Final / EU Stage IV (~2015-2020); Cat C7.1 ACERT engine with SCR + DPF Clean Emissions Module; also offered as D6N WH (Waste Handler) package |
| Configurations offered | XL (extended/standard gauge) and LGP (Low Ground Pressure, wide gauge); WH XL and WH LGP waste-handling variants added on Tier 4 Final series. Sources do not show a distinct plain 'Standard' narrow-gauge variant separate from XL for this model |
Engine
| Engine model - Series 1 | Cat 3126B DITAAC (direct injection, turbocharged, air-to-air aftercooled), 6-cylinder inline diesel |
| Engine model - Series 2 (Tier 4 Interim/Stage IIIB) | Cat C6.6 ACERT, 6-cylinder inline, turbocharged aftercooled, common rail fuel system, ADEM A5 electronic control |
| Engine model - Series 3 (Tier 4 Final/Stage IV) | Cat C7.1 ACERT, 6-cylinder inline, turbocharged aftercooled, common rail fuel system, with Cat Clean Emissions Module (DPF + SCR aftertreatment, DEF) |
| Net power - Series 1 (3126B) | approx. 108 kW (145 hp) |
| Net power - Series 2 (C6.6 ACERT) | 112 kW (150 hp) net per ISO 9249; gross approx. 132 kW (177 hp) per SAE J1995 |
| Net power - Series 3 (C7.1 ACERT) | 124 kW (166 hp) net per ISO 9249/SAE J1349; flywheel/high-speed power up to approx. 136 kW (182 hp) at 2200 rpm per SAE J1995 |
| Displacement - C6.6 ACERT | 6.6 L (402.8 cu in); bore/stroke approx. 105 mm x 127 mm (4.13 in x 5.0 in) |
| Displacement - C7.1 ACERT / 3126-family | approx. 7.1-7.2 L (433-439 cu in); bore/stroke approx. 105-110 mm x 127-135 mm (4.1-4.4 in x 5.0-5.3 in) - figures vary slightly by source |
| Emissions compliance | Series 1: pre-Tier 4; Series 2: U.S. EPA Tier 4 Interim / EU Stage IIIB / Japan MLIT Step 4; Series 3: U.S. EPA Tier 4 Final / EU Stage IV / Korea Tier 4 Final, requires ultra-low-sulfur diesel and diesel exhaust fluid (DEF) |
| Rated engine speed | approx. 1,800-2,200 rpm depending on series and power rating used |
Weights (by configuration)
| Operating weight - XL | approx. 15,590-16,760 kg (34,360-36,940 lb), varies by series/undercarriage/attachments |
| Operating weight - LGP | approx. 17,790-18,350 kg (39,220-40,450 lb), varies by series/blade |
| Operating weight - WH XL (waste handler, Tier 4 Final) | approx. 18,510 kg (40,818 lb) |
| Operating weight - WH LGP (waste handler, Tier 4 Final) | approx. 20,300 kg (44,749 lb) |
| Shipping weight | typically several hundred to ~1,100 lb (roughly 0.3-0.5 t) less than operating weight depending on configuration |
Dimensions
| Overall length without blade | approx. 3.74 m (12.27 ft), consistent across sources |
| Width over tracks - XL | approx. 2.50 m (8.2 ft / 98.4 in) |
| Width over tracks - LGP | approx. 3.00 m (9.8 ft / 118 in) with wide LGP shoes/gauge; some aggregator tables reuse the XL figure in error, so treat LGP width as the wider, undercarriage-driven value |
| Height to cab top / exhaust | approx. 3.0-3.2 m (10.1-10.6 ft), varies slightly by series and ROPS/cab configuration |
| Ground clearance - XL | approx. 360-425 mm (14.2-16.7 in) |
| Ground clearance - LGP | approx. 430-480 mm (16.8-18.8 in) |
| Track gauge - XL | approx. 1,890 mm (74.4 in / 6.21 ft) |
| Track gauge - LGP/WH LGP | approx. 2,160 mm (85 in / 7.09 ft) |
| Standard track shoe width - XL | approx. 610 mm (24.0 in) |
| Standard track shoe width - LGP | approx. 840 mm (33.07 in) |
| Track length on ground - XL | approx. 2.58-2.61 m (101.6-102.8 in) |
| Track length on ground - LGP | approx. 3.03-3.12 m (119.3-122.7 in) |
| Ground contact area - XL | approx. 3.11 m2 (4,822 in2) |
| Ground contact area - LGP | approx. 5.24 m2 (8,122 in2), per one source |
Performance
| Transmission | Planetary powershift transmission with lock-up clutch torque converter; base 3 forward/3 reverse speed ranges. Later machines add Cat Multi Velocity Program (MVP), an electronically selectable set of 5 forward/5 reverse speed positions (nominally labeled 1.5, 2.0, 2.5, 3.0, 3.5) layered on the 3-speed powershift base rather than a true 5-speed or hydrostatic gearbox; one aggregator source mislabels this as a 'hydrostatic 5F/5R' transmission, which conflicts with official Cat specalogs and dealer literature describing a powershift torque-converter drivetrain |
| Maximum travel speed - forward | approx. 10.1 km/h (6.3 mph) in top gear across series |
| Maximum travel speed - reverse | approx. 11.9-12.2 km/h (7.4-7.6 mph) across series |
| Minimum/creeper travel speed (MVP-equipped) | approx. 2.4-3.1 km/h (1.5-1.9 mph) at lowest selectable MVP position |
| Drawbar pull - 1st/lowest gear | approx. 316-320 kN (71,000-71,939 lbf) |
| Drawbar pull - 2nd/mid gear | approx. 173-198 kN (38,800-44,512 lbf) |
| Drawbar pull - 3rd/top gear | approx. 95-113 kN (21,500-25,403 lbf) |
| Ground pressure - XL | approx. 45-51 kPa (6.55-7.37 psi), varies by series and shoe width |
| Ground pressure - LGP | approx. 30-33 kPa (4.41-4.8 psi), varies by series and shoe width |
| Ground pressure - WH LGP | approx. 31 kPa (4.5 psi) |
| Gradeability | Not published as a standalone spec in any source reviewed for this model; Cat specalogs for medium dozers generally omit a stated maximum grade rating |
Blades
| S (straight) blade - base/LGP configuration | capacity approx. 3.2 m3 (4.2 yd3); width approx. 3.3-4.1 m (10.8-13.4 ft) depending on XL vs LGP frame |
| SU (semi-universal) blade - XL only | capacity approx. 4.3 m3 (5.6 yd3); width approx. 3.16-3.19 m (10.35-10.46 ft) |
| VPAT (variable-pitch angling/tilt) blade - XL | capacity approx. 3.2-3.3 m3 (4.16-4.33 yd3); width approx. 3.27-3.28 m (10.73 ft) |
| VPAT blade - LGP | capacity approx. 3.87-3.90 m3 (5.06-5.1 yd3); width approx. 4.08 m (13.39 ft) |
| VPAT Landfill package blade - LGP | capacity approx. 5.7 m3 (7.4 yd3), per Tier 4 Final-era dealer data |
| A (angling) blade | No source reviewed lists a standalone A-blade option for the D6N; angling capability on this model is delivered via the VPAT blade rather than a separate A-blade |
Undercarriage / Ripper
| Track rollers per side - XL | Roller count per side varies by frame length/configuration (XL vs LGP); consult the dealer parts catalog for the exact count on a given machine |
| Track shoes per side - XL | Shoe count per side varies by track/frame length (XL vs LGP); consult the dealer parts catalog for the exact count on a given machine |
| Track shoes per side - LGP | Shoe count per side varies by track/frame length (XL vs LGP); consult the dealer parts catalog for the exact count on a given machine |
| Grouser height | approx. 57 mm (2.25 in), standard single-grouser shoe |
| Ripper (optional, XL) | Fixed parallelogram multi-shank ripper; maximum penetration approx. 470-475 mm (18.6 in); beam width approx. 2.2 m (86.7 in) |
Service Capacities (Refill)
| Fuel tank | approx. 276-299 L (73-79 gal), higher figure typical of Series 1/2, slightly reduced (~73 gal) on Tier 4 Final with Clean Emissions Module packaging |
| Cooling system | approx. 35-40 L (9.3-10.8 gal) |
| Engine oil (crankcase) | approx. 17-26 L (4.5-6.9 gal), varies by engine family (3126B vs C6.6 vs C7.1) |
| Hydraulic (implement) system | approx. 29.5 L (7.8 gal), consistent across series |
| Final drive (each side) | approx. 7 L (1.8-1.9 gal) per side |
| Diesel Exhaust Fluid (DEF) tank | approx. 19 L (5.0 gal), Tier 4 Final/Stage IV configuration only (not applicable to earlier Tier 3/Tier 4 Interim engines) |
| Electrical system | 12V or 24V depending on series/options; alternator output approx. 70-95 amps depending on source |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D6N fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Approx. 17-18 L (4.5-4.8 gal), based on the Cat C6.6 ACERT industrial base-engine lube oil system spec; not directly published in the D6N sales spec sheets reviewed. Exact OMM figure varies by engine generation (3126B Tier 3, C6.6 ACERT Tier 3/Tier 4 Interim, or C7.1 ACERT Tier 4 Final) - treat as an approximate range pending confirmation against the specific serial-number OMM. | Cat DEO-ULS (API CJ-4) preferred for Tier 4 Interim/Final and Stage IIIB+ engines with aftertreatment; Cat DEO (API CI-4/CI-4 PLUS) acceptable for earlier Tier 3 engines without aftertreatment. Viscosity by ambient temperature: Cat DEO Cold Weather SAE 0W-40 (-40 to 40 degC / -40 to 104 degF); Cat DEO-ULS SYN SAE 5W-40 (-30 to 50 degC / -22 to 122 degF); Cat DEO-ULS or DEO SAE 10W-30 (-18 to 40 degC / 0 to 104 degF); SAE 15W-40 (-10 to 50 degC / 14 to 122 degF). |
| Cooling system | 40 L (10.56 gal) per the Tier 4 Interim/Stage IIIB-era D6N (C6.6 ACERT, factory spec sheet AEHQ6684). The original 2003 Tier 3 D6N (3126B engine, spec sheet HEHT5498) instead lists 54 L (14.3 gal) - capacity varies by series/engine generation. | Cat ELC (Extended Life Coolant), a premixed 1:1 glycol/water solution providing -37 degC (-34.6 degF) freeze protection, is standard factory fill; an optional cold-weather package coolant rated to -50 degC (-58 degF) is available for extreme climates. If a conventional (non-ELC) coolant is used it must meet ASTM D6210/Cat EC-1 or receive periodic SCA (Supplemental Coolant Additive) treatment; do not mix coolant types/brands. |
| Fuel tank | 299 L (79 gal) - consistent across the 2003 Tier 3 (3126B) and Tier 4 Interim (C6.6 ACERT) factory spec sheets. One aggregator source lists 277 L (73.2 gal) for what appears to be a DEF/SCR-equipped later variant, possibly reflecting a reduced tank to accommodate an added DEF tank; this figure is unverified against a primary Cat source and should be treated as varying by configuration/series. | Ultra Low Sulfur Diesel (ULSD, less than or equal to 15 ppm sulfur) required for Tier 4 Interim/Final and Stage IIIB+ engines with exhaust aftertreatment. The D6N can run on biodiesel blends up to 20% (B20) mixed with ULSD without reducing system life, per Cat literature. |
| DEF (Diesel Exhaust Fluid) tank | Approx. 19 L (5 gal), applicable only to later Tier 4 Final/Stage IV SCR-equipped D6N variants (associated with the C7.1 ACERT engine option). Earlier Tier 3/Tier 4 Interim D6N models (3126B or C6.6 ACERT without SCR) do not carry a DEF tank. | Diesel Exhaust Fluid meeting ISO 22241-1 (approximately 32.5% urea solution); do not use agricultural-grade urea or non-certified DEF. |
| Powershift transmission / power train case (incl. torque divider or torque converter) | Not consistently published in the sales literature reviewed. The D6N groups the transmission and bevel gear/steering compartment under a single 'power train case' with one ecology drain and one S.O.S sampling port per the factory equipment list, so the OMM likely publishes one combined power-train capacity rather than separate transmission-only and bevel-gear-only figures. Confirm exact volume against the specific serial-number OMM. | Cat TDTO (Transmission/Drive Train Oil, meets Cat TO-4) preferred; Cat TDTO-TMS synthetic multigrade acceptable across a wider temperature range. Viscosity by ambient temperature for track-type tractor power shift transmissions: Cat TDTO Cold Weather SAE 0W-20 (-40 to 10 degC / -40 to 50 degF); Cat TDTO SAE 10W (-20 to 10 degC / -4 to 50 degF); SAE 30, factory fill (0 to 35 degC / 32 to 95 degF); SAE 50 (10 to 50 degC / 50 to 122 degF); Cat TDTO-TMS multigrade (-15 to 43 degC / 5 to 110 degF). |
| Bevel gear / steering clutch-brake compartment | Shares the same oil supply, fill, and drain as the powershift transmission ('power train case') on the D6N according to Cat factory literature, rather than being a separately filled or drained compartment with its own published capacity. | Same fluid family as the power train case: Cat TDTO or Cat TDTO-TMS per the Cat TO-4 specification (see transmission row for viscosity-by-climate detail). Do not substitute gear oil (Cat GO) here, as it is not compatible with the friction materials in the steering clutches/brakes. |
| Final drives (each side) | 7 L (1.84-2.25 gal) per side per the original Tier 3 (3126B) factory spec sheet; the Tier 4 Interim (C6.6 ACERT, 2012-2013) factory spec sheet instead lists 8.5 L (2.25 gal) per side. Capacity varies by series/generation - verify against the specific serial-number OMM. | Cat TDTO (Cat TO-4 spec) is the factory-fill and preferred oil for D5N/D6N-family final drives; Cat's lubricant guide groups the D5M/D5N/D6M/D6N final drives together under 'normal' service (distinct from severe-duty elevated final drives on larger models). Viscosity by ambient temperature: Cat TDTO Cold Weather SAE 0W-20 (-40 to 0 degC / -40 to 32 degF); Cat TDTO SAE 10W (-30 to 0 degC / -22 to 32 degF); SAE 30 (-25 to 25 degC / -13 to 77 degF); SAE 50, factory fill (-15 to 50 degC / 5 to 122 degF). |
| Hydraulic system/tank | 29.5 L (7.79 gal) - consistent across every D6N generation/source reviewed, from the 2003 Tier 3 factory spec sheet through the Tier 4 Interim factory spec sheet. | Cat HYDO Advanced 10 (SAE 10W) is the standard factory-fill hydraulic oil; Cat Bio HYDO Advanced (biodegradable, ISO 46 multigrade) is offered as a factory option, indicated by a BIO symbol decal on the hydraulic tank. Viscosity by ambient temperature: Cat HYDO Advanced 10 SAE 10W (-20 to 40 degC / -4 to 104 degF); Advanced 20 SAE 20W (-5 to 45 degC / 23 to 113 degF); Advanced 30 SAE 30 (0 to 50 degC / 32 to 122 degF); Cat Bio HYDO Advanced ISO 46 multigrade (-30 to 45 degC / -22 to 113 degF). |
| Pivot shaft / track roller frame recoil spring bearings | Not a separately topped-off reservoir with a published bulk capacity on the D6N's elevated-sprocket undercarriage; the pivot shaft and recoil spring bearings are serviced per the OMM lubrication schedule rather than a bulk refill figure. | Cat TDTO per the Cat TO-4 specification, following the same climate-based viscosity guidance as the final drive/power train compartments: Cat TDTO Cold Weather SAE 0W-20 in the coldest climates, ranging up to SAE 50 in hot climates, with SAE 30 or SAE 50 as typical factory fill depending on the region. |
| Grease points (C-frame and blade linkage pins, equalizer bar, winch fairlead rollers, etc.) | Not applicable - these are grease-gun lubrication points serviced at scheduled intervals rather than fill-and-drain reservoirs. The D6N includes a grease gun holder built into the rear compartment for service access. | Cat Prime Application Grease (NLGI 2, molybdenum-disulfide fortified) is Cat's general recommendation for heavily loaded track-type tractor pin joints under medium loads; Cat Extreme Application Grease (NLGI 1 or 2) for high-load/high-impact joints; Cat Utility Grease (NLGI 2) for light-duty points. Approximate climate suitability: Extreme Application Grease about -35 to 40 degC (-31 to 104 degF) depending on load severity; Prime Application Grease about -20 to 40 degC (-4 to 104 degF); Utility Grease about -30 to 40 degC (-22 to 104 degF). |
| Winch (PA55, optional rear attachment) | 74 L (19.55 gal) - consistent across the Tier 3 and Tier 4 Interim factory spec sheets for the optional PA55 winch. | Cat TDTO per the Cat TO-4 specification, consistent with the power train and final drive fluid recommendations. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar D6N maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 6,000 h |
|
| Every 12,000 h |
|
Servicing the D6N beyond the schedule
Predictive Maintenance & Fluid Analysis
D6N owners lean on Cat's S.O.S sampling program to track whichever engine is fitted (3126B, C6.6, or C7.1) along with the transmission/torque-divider, final drives, and hydraulic tank, catching bearing and clutch wear before failure. Extended Life Coolant sampling protects the aftercooled ACERT engines from liner cavitation and corrosion, and on Tier 4 Final C7.1/WH units, monitoring DEF quality and diesel particulate filter soot load through the ECM prevents derates. Undercarriage cartridge wear is tracked against the SystemOne wear-life window to time track replacement economically.
Corrective & Common Repairs
Recurring D6N repairs center on the powershift transmission's lock-up torque-converter clutch and the steering-clutch/brake linkage, which need periodic adjustment as differential-steering or finger-tip-control components wear. Early 3126B HEUI engines are prone to injector and turbocharger issues under sustained ripping loads, while ACERT-generation engines more often see aftercooler and DPF/SCR sensor faults. Final-drive seal leaks, equalizer-bar bushing wear, and ripper pin-and-bushing wear from production dozing are other frequent shop visits, alongside blade cutting-edge and end-bit replacement.
Overhaul & Rebuild Points
Major D6N rebuild decisions revolve around the SystemOne undercarriage, whose sealed track cartridges are engineered against a multi-year, multi-thousand-hour wear window before rollers, idlers, and sprockets need reman or replacement. Powertrain rebuilds typically target the torque-divider/transmission clutch packs and final drives once oil sampling trends show metal contamination. On the engine side, 3126B units usually need HEUI injector and turbocharger overhaul first, whereas C6.6/C7.1 ACERT engines add aftertreatment component refurbishment to the same top-end and turbo overhaul cycle.
Seasonal & Environment Servicing
In cold climates, D6N operators rely on block/coolant heaters, correct Extended Life Coolant concentration, and, on Tier 4 Final units, DEF freeze-protection routing to avoid cold-start and SCR faults, since DEF itself freezes at typical winter lows. Hot, dusty dozing and land-clearing work shortens air-filter and radiator-core cleaning intervals and accelerates undercarriage abrasion, favoring wider LGP shoes in soft or wet ground versus XL shoes on firmer sites. Standing water or muddy conditions call for closer final-drive seal and track-seal inspection.
D6N fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 030-0248 (FMI 02) | Datalink communication signal erratic/intermittent between the machine monitor/chassis ECM (MID 030) and other ECMs on the CAN/Cat Data Link | Corroded or loose harness connectors, chafed datalink wiring, or a failing ECM causing loss or interruption of communication between control modules | Inspect and clean the main harness connectors between ECMs, check datalink wiring for damage, then connect Cat Electronic Technician (Cat ET) to confirm which modules are dropping off the link |
| 113-0673 (FMI 02) | Transmission output speed sensor #2 (secondary) signal erratic, intermittent, or incorrect, reported by the transmission/chassis ECM (MID 113) | Damaged sensor wiring, a failing speed sensor, or debris/air-gap issues at the sensor tip inside the transmission housing | Check sensor wiring and connectors for damage first; if wiring tests good, use Cat ET to compare sensor readings and plan sensor replacement, noting the sensor is internal to the transmission on this machine; be aware some gear ranges may still operate with this fault active while others trigger an alarm or halt |
| 113-0668 (FMI 12) | Transmission shift lever (direction/speed) position sensor reporting a failed or bad device condition — logged when the lever signal stays between neutral and a forward/reverse detent longer than normal | Worn shift lever detent mechanism or damaged wiring at the transmission shift lever position sensor | Inspect the shift lever linkage/detents and sensor wiring for wear or damage, return the lever to NEUTRAL to restore normal shifting, then verify sensor calibration and operation with Cat ET |
| 036-0100 (FMI 03/04) | Engine oil pressure sensor circuit voltage reading above normal (FMI 03) or below normal (FMI 04), reported by the engine ECM (MID 036) | Open or shorted sensor wiring, a failed oil pressure sensor, or a bad connector at the sensor | Verify actual engine oil pressure/level first for operator safety, then check sensor wiring continuity and connector condition before replacing the sensor |
| 036-0110 (FMI 03/04) | Engine coolant temperature sensor circuit voltage reading above normal (FMI 03) or below normal (FMI 04), reported by the engine ECM (MID 036) | Open or shorted sensor circuit wiring, corroded connector, or a failed coolant temperature sensor | Check coolant level and wiring/connector condition at the sensor, then test sensor resistance/output against Cat ET readings before replacing the sensor |
| 036-0091 (FMI 02) | Throttle position sensor/switch input signal erratic, intermittent, or invalid; engine ECM defaults to a fallback throttle value and may limit engine speed until resolved | Faulty throttle position sensor, worn linkage, or an intermittent wiring connection at the throttle sensor circuit | Inspect throttle linkage and sensor connector, recalibrate the throttle sensor with Cat ET if wiring checks out, otherwise replace the sensor |
| 036-0042 (FMI 11) | Injection actuation (fuel) pressure control valve fault of an other/unclassified type — the valve or actuation circuit fails to reach or hold the commanded actuation pressure output, and the failure does not fit a simple open/short circuit code | A sticking or failed injection actuation pressure control valve, internal fuel system restriction or leak, or a wiring/connector fault at the valve that prevents the commanded pressure from being achieved | Check wiring and connectors to the injection actuation control valve, then use Cat ET to run injector/actuation pressure diagnostics before component replacement |
| 036-0164 (FMI 11) | Injector actuation pressure differs from the desired actuation pressure by more than the allowed tolerance (commonly cited as roughly 3 MPa/435 psi); this points to a mechanical/hydraulic issue rather than a wiring circuit fault | Fuel system contamination, a failing high-pressure pump, actuation pressure control valve fault, or air/leak in the actuation fuel circuit | Check fuel quality and filters, inspect the actuation pressure control valve and related wiring, then use Cat ET to monitor actual versus desired actuation pressure while troubleshooting |
| 030-0168 (FMI 02/04) | Machine/system (battery) electrical voltage erratic (FMI 02) or reading below normal (FMI 04) at the monitoring/chassis ECM (MID 030) | Weak or discharged battery, corroded battery cable connections, poor grounds, or a charging system fault feeding low or unstable voltage to the ECMs | Test battery condition and charging system output, clean and tighten battery and ground connections, then recheck for the code with Cat ET |
| E0361.1 / E0361.2 / E0361.3 | Engine coolant temperature event code indicating progressively higher coolant temperature warning levels (Level 1 caution up to Level 3, which can trigger a derate or shutdown); this is a condition-based event, not a sensor circuit fault | Low coolant level, blocked radiator core or fins, failing fan or fan drive, or a genuine engine overheating condition | Stop and safely idle down the machine, check coolant level and radiator/fin condition once cool, verify fan operation, then confirm normal operating temperature before returning to work |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D6N attachments & work tools
Blades
The D6N line is offered mainly with SU (semi-universal) and VPAT (variable pitch/power angle-tilt) blades rather than a distinct 'A' angle blade; angling on this model is handled through the VPAT's hydraulic angle-tilt-pitch function. Reported SU widths run roughly 3.3-3.6 m (10.9-11.8 ft) with capacity about 4.3-7.5 yd3 (3.3-5.7 m3), and VPAT widths roughly 3.0-3.7 m with capacity about 4.1-5.4 yd3 (3.1-4.1 m3); figures vary noticeably by source and configuration (base D6N vs XL vs LGP), so treat as a range rather than a fixed spec. The LGP variant is commonly shown with a wider 6-way/PAT-style blade (front width cited near 4.08 m) or a narrower foldable option (~3.25 m), reflecting LGP's wide-shoe, low-ground-pressure setup.
Rippers
A single-shank ripper (one shank fitted, additional shanks optional) is the standard rear ripper for this class, with sources citing about 1,550 kg installed weight, roughly 68.8 kN maximum penetration force and about 126 kN pryout force; each extra shank adds on the order of 73-78 kg.
Rippers - multi-shank
Multi-shank parallelogram rippers (typically three shank pockets) are also available for the D6N/D6N-class rear linkage, built with either a single lift/tilt cylinder or a two-cylinder arrangement for independent shank control; aftermarket listings show a wide weight spread, from roughly 1,400 kg for a single-cylinder unit up to about 2,800 kg for a two-cylinder unit with a transmission guard, so weight varies substantially by supplier and configuration.
Winches
No integrated winch is standard; the D6N is prepared for a rear-mounted hydraulic towing/pulling winch through factory-installed 'winch ready' hydraulics, wiring and controls, with slow- and standard-speed winch options historically supplied by manufacturers such as Hyster/Allied, Braden/Esco and Gearmatic for this dozer class. Because the winch and ripper mount in the same rear location, a 'dual control ready' package (shared control lever plus the hydraulics for both) is offered for customers who want the flexibility to run either attachment on the same machine.
Drawbars / counterweights
A rear drawbar can be fitted in place of a ripper for retrieving equipment or towing trailed work tools (e.g., discs, compactors, chopper wheels). Rear counterweight is offered as a Custom Products option to rebalance the machine in demanding conditions such as backing up slopes or heavy angle-dozing; publicly available sources do not give a specific counterweight mass or drawbar pull-rating figure for the D6N, so exact numbers should be confirmed against the dealer configuration.
Cab / ROPS guarding (forestry & waste)
The standard cab structure meets ROPS to ISO 3471:2008 and FOPS to ISO 3449:2005 Level II; an isolation-mounted, pressurized cab is used with optional cab-mounted air conditioning. For forestry/land-clearing work, an optional sweeps/guarding package adds heavy-duty shielding over hydraulic lines, the exhaust stack, cab glazing and lights to protect against limbs and debris. A separate D6N WH (Waste Handler) configuration adds landfill-specific guarding: multi-layer final drive guards, extra belly/underside protection against stumps and debris, a hinged belly guard for cleanout, plus recommended landfill blades, front striker bars and special track shoes.
Hydraulic arrangement (front/rear tools)
Front blade hydraulics scale with blade type: S/SU blades use a simpler lift-plus-single-tilt-cylinder circuit, while the VPAT blade adds angle and pitch cylinders so lift, angle and tilt can all be adjusted hydraulically from the cab. Rear-tool hydraulics are handled through factory ripper-ready or winch-ready packages that route the necessary hydraulic lines, wiring and a dedicated control console to the back of the machine; single-shank rippers typically use one lift cylinder while multi-shank parallelogram rippers are offered with either one or two cylinders depending on supplier, and ripper/winch controls can be combined via the dual-control-ready option.
All D6N assemblies by section
Every catalogued assembly group for the Caterpillar D6N. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
1991416 Air Cleaner Assembly
| 19***16 | Air Cleaner Group | 1 |
Air Cleaner Group (1951049 N/S)
| 19***49 | Air Cleaner Group | 1 |
Air Inlet Cover Group (1898780 N/S)
| 18***80 | Cover Group-Air Inlet; -Starting Aid Heater | 1 |
Air Inlet Cover Group (1531794 N/S)
| 15***94 | Cover Group-Air Inlet; -Engine | 1 |
Air Inlet Elbow Group (2463523 N/S)
| 24***23 | Elbow Group-Air Inlet; -Engine | 1 |
Air Inlet Elbow Group (1703273 N/S)
| 17***73 | Elbow Group-Air Inlet; -Engine | 1 |
Air Lines Group (1951047 N/S)
| 19***47 | Lines Group-Air | 1 |
Air Lines Group (2336801 N/S)
| 23***01 | Lines Group-Air | 1 |
Turbocharger Oil Lines Group (2023262 N/S)
| 20***62 | Lines Group-Turbocharger Oil | 1 |
Exhaust Manifold Group (1592572 N/S)
| 15***72 | Manifold Group-Exhaust | 1 |
Muffler Mounting Group (2015381 N/S)
| 20***81 | Mounting Group-Muffler, . Gear | 1 |
Muffler Group (1951048 N/S)
| 19***48 | Muffler Group | 1 |
Air Inlet Heater Group (1187284 N/S)
| 11***84 | Starting Aid Group; -Air Inlet Heater | 1 |
1871603 Turbocharger Group-Basic
| 18***03 | Turbocharger Group | 1 |
Turbocharger Group (1871602 N/S)
| 18***02 | Turbocharger Group | 1 |
Basic Engine
Belt Group (1950681 N/S)
| 19***81 | Belt Group-Serpentine; -With Air Conditioning | 1 |
Belt Group (1931032 N/S)
| 19***32 | Belt Group-Serpentine; -With Air Conditioning | 1 |
Belt Group (1931033 N/S)
| 19***33 | Belt Group-Serpentine; -Without Air Conditioning | 1 |
Belt Group (1931038 N/S)
| 19***38 | Belt Group-Serpentine; -With Air Conditioning | 1 |
Belt Group (1931040 N/S)
| 19***40 | Belt Group-Serpentine; -Without Air Conditioning | 1 |
Belt Tightener Group (1892221 N/S)
| 18***21 | Belt Tightener Group | 1 |
Single Camshaft Group (2167922 N/S)
| 21***22 | Camshaft Group; (Single) | 1 |
Seal Carrier Group (1323844 N/S)
| 13***44 | Carrier Group-Seal; (Seal) | 1 |
Cylinder Cover Group (2105598 N/S)
| 21***98 | Cover Group-Cylinder Block | 1 |
Front Cover Group (1368888 N/S)
| 13***88 | Cover Group-Front Housing; (Front Housing) | 1 |
Valve Mechanism Cover Group (1531832 N/S)
| 15***32 | Cover Group-Valve Mechanism | 1 |
Crankshaft Group (1136087 N/S)
| 11***87 | Crankshaft Group | 1 |
2214481 Cylinder Block Group
| 22***81 | Cylinder Block Group | 1 |
Cylinder Block Group (1291165 N/S)
| 12***65 | Cylinder Block Group | 1 |
1291164 Cylinder Block Group
| 12***64 | Cylinder Block Group | 1 |
2275952 Cylinder Head Assembly
| 22***52 | Cylinder Head As | 1 |
Cylinder Head Group (2275954 N/S)
| 22***54 | Cylinder Head Group | 1 |
Cylinder Head Group (1333742 N/S)
| 13***42 | Cylinder Head Group | 1 |
Cylinder Head Group (2275953 N/S)
| 22***53 | Cylinder Head Group | 1 |
Damper And Pulley Group (1892227 N/S)
| 18***27 | Damper & Pulley Group | 1 |
Oil Pan Drain Group (7c4532 N/S)
| 7C***32 | Drain Group-Oil Pan; Oil Pan Drain Group | 1 |
Oil Pan Drain Group (7c4566 N/S)
| 7C***66 | Drain Group-Oil Pan; -Magnetic Plug | 1 |
1892203 Fan Drive Group
| 18***03 | Drive Group-Fan | 1 |
Fan Drive Group (1892223 N/S)
| 18***23 | Drive Group-Fan; -Belt | 1 |
Fastener Group (2285288 N/S)
| 22***88 | Fastener Group-Front Cover | 1 |
Housing Fastener Group (1164556 N/S)
| 11***56 | Fastener Group-Front Housing; (Housing) | 1 |
Engine Oil Filler (1993164 N/S)
| 19***64 | Filler Group-Engine Oil | 1 |
Flywheel Group (2243637 N/S)
| 22***37 | Flywheel Group | 1 |
Oil Level Gauge Group (1591810 N/S)
| 15***10 | Gauge Group-Oil Level (Dipstick); -Engine | 1 |
Front Gear Group (2051321 N/S)
| 20***21 | Gear Group-Front, Name-Plate (Norwegian) | 1 |
Flywheel Housing Group (4w1103 N/S)
| 4W***03 | Housing Group-Flywheel | 1 |
Front Housing Group (1335055 N/S)
| 13***55 | Housing Group-Front | 1 |
Engine Lifting Group (1592565 N/S)
| 15***65 | Lifting Group-Engine | 1 |
Engine Support Group (2035866 N/S)
| 20***66 | Mounting Group-Engine | 1 |
Engine Mounting Group (2015515 N/S)
| 20***15 | Mounting Group-Engine | 1 |
Fan Drive Mounting Group (1892222 N/S)
| 18***22 | Mounting Group-Fan Drive | 1 |
Oil Drain Group (2166339 N/S)
| 21***39 | Oil Drain Group | 1 |
Oil Pan Group (1960077 N/S)
| 19***77 | Work Lamp; Cab, Upper, Work Lamp; Cab, Rear, Work Lamp, Pan Group-Oil; -Engine, Work Lamp; Rear, Work Lamp; Cab, Lower | 1 |
Connecting Rod And Piston Group (1777500 N/S)
| 17***00 | Piston & Rod Group | 1 |
Plug Group (1590303 N/S)
| 15***03 | Plug Group-Cylinder Block; (Cylinder Block) | 1 |
Plug Group (1628068 N/S)
| 16***68 | Plug Group-Engine; -Oil Gallery | 1 |
Alternator Pulley Group (1961791 N/S)
| 19***91 | Pulley Group-Alternator | 1 |
Pulley Group (2245128 N/S)
| 22***28 | Pulley Group-Fan | 1 |
Pulley Group (2245123 N/S)
| 22***23 | Pulley Group-Fan | 1 |
Pulley Group (2019063 N/S)
| 20***63 | Pulley Group-Fan Drive | 1 |
Idler Group (1892220 N/S)
| 18***20 | Pulley Group-Idler | 1 |
Crankshaft Seal Group (1154210 N/S)
| 11***10 | Seal Group-Crankshaft | 1 |
Flywheel Housing Seal Group (7c1770 N/S)
| 7C***70 | Seal Group-Flywheel Housing | 1 |
Valve Mechanism Group (2355528 N/S)
| 23***28 | Valve Mechanism Group | 1 |
Valve Mechanism Group (1352969 N/S)
| 13***69 | Valve Mechanism Group | 1 |
2563830 Valve Mechanism Group
| 25***30 | Valve Mechanism Group | 1 |
Cooling System
Aftercooler Group (1951042 N/S)
| 19***42 | Aftercooler Group | 1 |
Engine Oil Cooler Group (1173643 N/S)
| 11***43 | Cooler Group-Engine Oil | 1 |
Control Fan Group (2394082 N/S)
| 23***82 | Fan Group-Blower | 1 |
Blower Fan Group (1951041 N/S)
| 19***41 | Fan Group-Blower | 1 |
Cooling Group (2336810 N/S)
| 23***10 | Lines Group-Radiator; (Radiator) | 1 |
Water Lines Group (1591814 N/S)
Water Lines Group (2463546 N/S)
| 24***46 | Lines Group-Water | 1 |
1939238 Water Pump Group
| 19***38 | Pump Group-Water | 1 |
2364413 Water Pump Group
| 23***13 | Pump Group-Water; -Coolant | 1 |
Water Pump Group (1939237 N/S)
| 19***37 | Pump Group-Water | 1 |
Radiator Group (1951809 N/S)
| 19***09 | Radiator Group | 1 |
Radiator Group (1951040 N/S)-Part 2 Of 2
| 19***40 | Radiator Group | 1 |
Radiator Group (2336814 N/S)
| 23***14 | Radiator Group | 1 |
Radiator Group (1951040 N/S)-Part 1 Of 2
| 19***40 | Radiator Group | 1 |
Cooling Group (2336811 N/S)
| 23***11 | Radiator Group; (Includes Aftclr And Oil Cooler) | 1 |
Electrical And Starting System
1855294 Charging Alternator Group-Denso-24v, 65a
| 18***94 | Alternator Group-Charging; -Waste Handling | 1 |
1322156 Charging Alternator Group-24v,70a-Part 1 Of 2
| 13***56 | Alternator Group-Charging | 1 |
Charging Alternator Group (1892224 N/S)-24v, 70a
| 18***24 | Alternator Group-Charging | 1 |
Charging Alternator Group (1995644 N/S)-24v, 65a
| 19***44 | Alternator Group-Charging; -Brushless | 1 |
1322156 Charging Alternator Group-24v,70a-Part 2 Of 2
| 13***56 | Alternator Group-Charging | 1 |
Battery And Wiring Group (1604069 N/S)-Chassis-Part 1 Of 4
| 16***69 | Battery & Wiring Group | 1 |
Battery And Wiring Group (2358385 N/S)-Chassis-Part 3 Of 4
| 23***85 | Battery & Wiring Group | 1 |
Battery And Wiring Group (2358385 N/S)-Chassis-Part 4 Of 4
| 23***85 | Battery & Wiring Group | 1 |
Battery And Wiring Group (1604069 N/S)-Chassis-Part 4 Of 4
| 16***69 | Battery & Wiring Group | 1 |
Battery And Wiring Group (1604069 N/S)-Chassis-Part 2 Of 4
| 16***69 | Battery & Wiring Group | 1 |
Battery And Wiring Group (2358385 N/S)-Chassis-Part 2 Of 4
| 23***85 | Battery & Wiring Group | 1 |
Battery And Wiring Group (2358385 N/S)-Chassis-Part 1 Of 4
| 23***85 | Battery & Wiring Group | 1 |
Battery And Wiring Group (1604069 N/S)-Chassis-Part 3 Of 4
| 16***69 | Battery & Wiring Group | 1 |
Battery Group (1573460 N/S)-Heavy Duty
| 15***60 | Battery Group; -Heavy Duty | 1 |
Electronic Control And Mounting Group (1887726 N/S)
| 18***26 | Control & Mtg Group-Engine Elek | 1 |
Electronic Control And Mounting Group (2334825 N/S)
| 23***25 | Control & Mtg Group-Engine Elek | 1 |
1547443 Electronic Control Group
| 15***43 | Control Group-Unprgmed Monitor; -Caterpillar Monitoring System | 1 |
1729389 Electronic Control Group
| 17***89 | Control Group-Unprogrammed; -Steering, Transmission | 1 |
2524501 Electronic Control Group
| 25***01 | Electronic Control Group; (Caterpillar Monitoring System)(Electronic) | 1 |
Electronic Arrangement (1569514 N/S)
| 15***14 | Electronics Ar-Machine | 1 |
| 16***69 | Electronics Group-Power Train; (Pilot Control) | 1 |
| 23***86 | Wiring Group-Engine | 1 |
Electronic Arrangement (2302111 N/S)
| 16***69 | Electronics Group-Power Train; (Pilot Control) | 1 |
| 23***11 | Electronics Ar-Machine | 1 |
| 23***86 | Wiring Group-Engine | 1 |
Electronic Control Group (1693234 N/S)-Monitoring
| 16***34 | Electronics Group-Monitor; -Caterpillar Monitoring System | 1 |
| 23***31 | Service Group; (Caterpillar Monitoring System) | 1 |
Electronic Control Group (2385145 N/S)-Monitoring
| 23***45 | Electronics Group-Monitor; -Caterpillar Monitoring System | 1 |
| 24***90 | Service Group | 1 |
Electronics Group (1666269 N/S)-Drive Train
| 16***69 | Electronics Group-Power Train; (Pilot Control) | 1 |
1538920 Harness Assembly
| 15***20 | Engine Harness Assembly; (Unit Injector) | 1 |
1957336 Harness Assembly-Part 2 Of 2
| 19***36 | Engine Harness Assembly; (Electronic Control) | 1 |
1957336 Harness Assembly-Part 1 Of 2
| 19***36 | Engine Harness Assembly; (Electronic Control) | 1 |
Fastener Group (2241296 N/S)
| 22***96 | Fastener Group-Engine Wiring | 1 |
1602185 Harness Assembly
| 16***85 | Harness Assembly; (Sensor, Switch, Valve) | 1 |
2652733 Harness Assembly-Part 1 Of 2
| 26***33 | Harness Assembly; (Alternator) | 1 |
1602183 Harness Assembly
| 16***83 | Harness Assembly; (Engine) | 1 |
2652733 Harness Assembly-Part 2 Of 2
| 26***33 | Harness Assembly; (Alternator) | 1 |
2367486 Harness Assembly-Part 2 Of 2
| 23***86 | Harness Assembly; (Alternator) | 1 |
2315849 Harness Assembly-Part 2 Of 2
| 23***49 | Harness Assembly | 1 |
1602184 Harness Assembly
| 16***84 | Harness Assembly; (Fuel Level, Hydraulic Oil Temp) | 1 |
2367486 Harness Assembly-Part 1 Of 2
| 23***86 | Harness Assembly; (Alternator) | 1 |
2315849 Harness Assembly-Part 1 Of 2
| 23***49 | Harness Assembly | 1 |
2356762 Harness Assembly
| 23***62 | Harness Assembly; (Sensors, Solenoids, Hydraulic Fan) | 1 |
2255075 Flood Lamp Group-Suspended-24v
| 22***75 | Lamp Group-Flood | 1 |
2196487 Flood Lamp Group-Suspended-24v
| 21***87 | Lamp Group-Flood; -24-Volt, 65-Watt | 1 |
2196488 Flood Lamp Group-Suspended-24v
| 21***88 | Lamp Group-Flood; -Cab Roof, Front | 1 |
2353937 Lamp Group-Amber-Rotating Warning-24v
| 23***37 | Lamp Group-Warning Beacon; -Amber, Rotating | 1 |
Lighting Group (1573463 N/S)-Erpos
| 15***63 | Lighting Group-Flood; -Enclosed, Open Rops | 1 |
Lighting Group (2434799 N/S)-Orops
| 24***99 | Lighting Group-Flood; -Open Rops | 1 |
Warning Light Group (2383279 N/S)
| 23***79 | Lighting Group-Warning Beacon | 1 |
Electronic Sensor Group (1997734 N/S)
| 19***34 | Sensor Group-Engine | 1 |
Service Group (2316531 N/S)
| 15***43 | Control Group-Unprgmed Monitor; -Caterpillar Monitoring System | 1 |
| 23***31 | Service Group; (Caterpillar Monitoring System) | 1 |
Service Group (2456590 N/S)
| 24***90 | Service Group | 1 |
| 25***01 | Electronic Control Group; (Caterpillar Monitoring System)(Electronic) | 1 |
Heater Wiring Group (2302530 N/S)
| 23***30 | Starting Aid Group; -Air Inlet | 1 |
Electric Starting Motor Group (1455157 N/S)-24v
| 14***57 | Starting Motor Group-Electric | 1 |
2071519 Electric Starting Motor Group-Part 1 Of 2
| 20***19 | Starting Motor Group-Electric | 1 |
2071519 Electric Starting Motor Group-Part 2 Of 2
| 20***19 | Starting Motor Group-Electric | 1 |
7n0718 Disconnect Switch Assembly
| 7N***18 | Switch As-Disconnect; -Battery-Ground Level | 1 |
1647577 Filter Bypass Switch Group
| 16***77 | Switch Group-Bypass; -Xmsn Lubrication Supply Filter-Xmsn Lubrication Charge Filter-Hoist Screen-Tc, Front Brake Cooling-Transmission Oil Filter-Rear Axle Oil Filter | 1 |
2237577 Switch Mounting Assembly
| 22***77 | Switch Group-Magnetic; -Air Inlet Heater Relay | 1 |
Engine Wiring Group (1573458 N/S)-Part 3 Of 3
| 15***58 | Wiring Group-Engine | 1 |
Electronic Control Wiring Group (2285786 N/S)
| 22***86 | Wiring Group-Engine; -Electronic Cont.-Unit Injector | 1 |
Engine Wiring Group (2356786 N/S)-Part 2 Of 3
| 23***86 | Wiring Group-Engine | 1 |
Engine Wiring Group (2356786 N/S)-Part 3 Of 3
| 23***86 | Wiring Group-Engine | 1 |
Engine Wiring Group (1573458 N/S)-Part 2 Of 3
| 15***58 | Wiring Group-Engine | 1 |
Engine Wiring Group (1573458 N/S)-Part 1 Of 3
| 15***58 | Wiring Group-Engine | 1 |
Engine Wiring Group (2356786 N/S)-Part 1 Of 3
| 23***86 | Wiring Group-Engine | 1 |
Engine Wiring Group (2356786 N/S)-Part 2 Of 2
| 23***86 | Wiring Group-Engine | 1 |
Engine Wiring Group (2356786 N/S)-Part 1 Of 2
| 23***86 | Wiring Group-Engine | 1 |
Pilot Control Wiring Group (2494603 N/S)
| 24***03 | Wiring Group-Valve; -Pilot Control, Bevel Pinion, Bevel Pinion; Gear Pinion | 1 |
Engine Arrangement
Control Fan Arrangement (2263406 N/S)
| 19***81 | Engine Ar-Complete; (Complete) | 1 |
| 19***32 | Belt Group-Serpentine; -With Air Conditioning | 1 |
| 22***06 | Cooling Ar | 1 |
1914481 Engine Arrangement-Complete-Part 2 Of 2
| 11***56 | Fastener Group-Front Housing; (Housing) | 1 |
| 14***57 | Starting Motor Group-Electric | 1 |
| 15***03 | Plug Group-Cylinder Block; (Cylinder Block) | 1 |
1914479 Engine Arrangement-Complete-Part 2 Of 2
| 11***56 | Fastener Group-Front Housing; (Housing) | 1 |
| 11***84 | Starting Aid Group; -Air Inlet Heater | 1 |
| 14***57 | Starting Motor Group-Electric | 1 |
1914479 Engine Arrangement-Complete-Part 1 Of 2
| 11***10 | Seal Group-Crankshaft | 1 |
| 11***74 | Filter Group-Engine Oil | 1 |
| 13***44 | Carrier Group-Seal; (Seal) | 1 |
1914481 Engine Arrangement-Complete-Part 1 Of 2
| 11***10 | Seal Group-Crankshaft | 1 |
| 11***74 | Filter Group-Engine Oil | 1 |
| 13***44 | Carrier Group-Seal; (Seal) | 1 |
Engine Arrangement (1914482 N/S)-Core
| 11***87 | Crankshaft Group | 1 |
| 11***43 | Cooler Group-Engine Oil | 1 |
| 12***71 | Breather Group; -Engine | 1 |
Installation Arrangement (1951046 N/S)-Engine
| 18***24 | Alternator Group-Charging | 1 |
| 18***29 | Compressor Group-Refrigerant; (Air Conditioner) | 1 |
| 19***81 | Belt Group-Serpentine; -With Air Conditioning | 1 |
Installation Arrangement (2302099 N/S)-Engine
| 18***24 | Alternator Group-Charging | 1 |
| 18***29 | Compressor Group-Refrigerant; (Air Conditioner) | 1 |
| 19***38 | Belt Group-Serpentine; -With Air Conditioning | 1 |
High Ambient Temperature Arrangement (1996965 N/S)
| 19***65 | Machine Ar-High Ambient Temp | 1 |
| 20***70 | Radiator Assembly | 5 |
Frame And Body
Equalizer Bar Group (1729873 N/S)-Lgp
| 17***73 | Bar Group-Equalizer | 1 |
Equalizer Bar Group (1729872 N/S)
| 17***72 | Bar Group-Equalizer | 1 |
Track Idler Cap Group (2330854 N/S)-Lh
| 23***54 | Cap Group-Track Idler; -Systemone | 1 |
Track Idler Cap Group (2550046 N/S)-Lh
| 25***46 | Cap Group-Track Idler; (Lh) (Rear) | 1 |
Track Idler Cap Group (1079109 N/S)
| 10***09 | Cap Group-Track Idler | 1 |
Track Idler Cap Group (2550045 N/S)-Rh
| 25***45 | Cap Group-Track Idler; (Rh) (Rear) | 1 |
Track Idler Cap Group (2330367 N/S)-Rh
| 23***67 | Cap Group-Track Idler; -Systemone | 1 |
Frame And Case Group (1567278 N/S)
| 15***78 | Case & Frame Group | 1 |
Chassis Arrangement (1569497 N/S)
| 10***62 | Guard Group-Bottom | 1 |
| 10***68 | Drawbar Group | 1 |
| 15***05 | Fender Group | 1 |
Drawbar Group (1074068 N/S)
| 10***68 | Drawbar Group | 1 |
Enclosure Group (1557706 N/S)-Part 3 Of 4
| 15***06 | Enclosure Group-Engine | 1 |
Enclosure Group (1557706 N/S)-Part 2 Of 4
| 15***06 | Enclosure Group-Engine | 1 |
Enclosure Group (1557706 N/S)-Part 1 Of 4
| 15***06 | Enclosure Group-Engine | 1 |
Enclosure Group (1557706 N/S)-Part 1 Of 2
| 15***06 | Enclosure Group-Engine | 1 |
Enclosure Group (1557706 N/S)-Part 2 Of 2
| 15***06 | Enclosure Group-Engine | 1 |
Enclosure Group (1557706 N/S)-Part 4 Of 4
| 15***06 | Enclosure Group-Engine | 1 |
Fender Group (1557705 N/S)
| 15***05 | Fender Group | 1 |
1567279 Frame And Case Assembly
| 15***79 | Frame And Case Assembly | 1 |
Track Roller Frame Group (1989789 N/S)
| 19***89 | Frame Group-Telescoping Recoil | 1 |
Track Roller Frame Group (2483882 N/S)
| 24***82 | Frame Group-Telescoping Recoil; -Systemone | 1 |
Track Roller Frame Group (1989799 N/S)
| 19***99 | Frame Group-Telescoping Recoil | 1 |
Track Roller Frame Group (2483883 N/S)
| 24***83 | Frame Group-Telescoping Recoil; -Systemone | 1 |
Sand Blast Grid Group (1951045 N/S)
| 19***45 | Grid Group-Sand Blast Eroding | 1 |
Sand Blast Grid Group (2336824 N/S)
| 23***24 | Grid Group-Sand Blast Eroding | 1 |
Bottom Guard Group (1075601 N/S)
| 10***01 | Guard Group-Bottom; -Heavy-Duty | 1 |
Bottom Guard Group (1074062 N/S)
| 10***62 | Guard Group-Bottom | 1 |
Fuel Tank Guard Group (1557775 N/S)
| 15***75 | Guard Group-Fuel Tank | 1 |
Fuel Tank Guard Group (2136475 N/S)
| 21***75 | Guard Group-Fuel Tank | 1 |
Radiator Guard Group (1557703 N/S)
| 15***03 | Guard Group-Radiator | 1 |
Radiator Guard Group (2334114 N/S)
| 23***14 | Guard Group-Radiator | 1 |
Track Guide Guard Group (2056131 N/S)-Center Lgp
| 20***31 | Guard Group-Track Guide | 1 |
Track Guide Guard Group (2056129 N/S)
| 20***29 | Guard Group-Track Guide; -Moderate Service | 1 |
Track Roller Guard Group (2056128 N/S)
| 20***28 | Guard Group-Track Roller; -Heavy-Duty | 1 |
Track Guiding Guard Arrangement (2056137 N/S)
| 12***30 | Roller Group-Track-Double Flange; -Undercarriage Guiding | 10 |
| 20***28 | Guard Group-Track Roller; -Heavy-Duty | 1 |
| 20***37 | Guiding Ar-Undercarriage; -Extra Long, Heavy Duty | 1 |
Track Guiding Guard Arrangement (2056138 N/S)
| 12***30 | Roller Group-Track-Double Flange; -Undercarriage Guiding | 12 |
| 20***29 | Guard Group-Track Guide; -Moderate Service | 1 |
| 20***38 | Guiding Ar-Undercarriage | 1 |
Hood Group (1559323 N/S)-Part 1 Of 2
| 15***23 | Hood Group | 1 |
Hood Group (1559323 N/S)-Part 2 Of 2
| 15***23 | Hood Group | 1 |
1901546 Track Idler Group
| 19***46 | Idler Group-Track | 1 |
1102976 Link Assembly
| 11***76 | Link As-Track | 1 |
1061636 Link Assembly
| 10***36 | Link As-Track | 1 |
Carrier Roller Mounting Group (1186345 N/S)
| 11***45 | Mounting Group-Carrier Roller | 1 |
Platform Mounting Group (2183137 N/S)-Part 1 Of 2
| 21***37 | Mounting Group-Platform | 1 |
Platform Mounting Group (2183137 N/S)-Part 2 Of 2
| 21***37 | Mounting Group-Platform | 1 |
Platform Mounting Group (2372830 N/S)-Part 2 Of 2
| 23***30 | Mounting Group-Platform | 1 |
Platform Mounting Group (2372830 N/S)-Part 1 Of 2
| 23***30 | Mounting Group-Platform | 1 |
Rops Mounting Group (1574819 N/S)
| 15***19 | Mounting Group-Rops | 1 |
Pivot Bar Group (1074099 N/S)
| 10***99 | Pivot Bar Group | 1 |
Pivot Bar Group (1074098 N/S)
| 10***98 | Pivot Bar Group | 1 |
Grill Group (2416862 N/S)-Heavy Duty
| 24***62 | Plate Group-Radiator; -Heavy-Duty | 1 |
Grill Group (1559366 N/S)-Heavy Duty
| 15***66 | Plate Group-Radiator; -Heavy-Duty | 1 |
Operator Platform Group (1649140 N/S)-Part 2 Of 2
| 16***40 | Platform Group-Operator | 1 |
Operator Platform Group (1649140 N/S)-Part 1 Of 2
| 16***40 | Platform Group-Operator | 1 |
6y3908 Track Carrier Roller Group
| 6Y***08 | Roller Group-Carrier | 1 |
1210827 Track Roller Group-Double Flange
| 12***27 | Roller Group-Track-Double Flange | 1 |
1210830 Track Roller Group-Double Flange
| 12***30 | Roller Group-Track-Double Flange; -Undercarriage Guiding | 1 |
Track Roller Group (1254173 N/S)-Double Flange
| 12***73 | Roller Group-Track-Double Flange; (Double Flange) | 1 |
Track Roller Group (1254172 N/S)-Single Flange
| 12***72 | Roller Group-Track-Single Flange; (Single Flange) | 1 |
1210824 Track Roller Group-Single Flange
| 12***24 | Roller Group-Track-Single Flange | 1 |
Track Adjuster And Recoil Group (1080800 N/S)
| 10***00 | Track Adjuster & Recoil Group | 1 |
1102978 Track Group-600mm Grouser Shoe
| 11***78 | Track Group; -2-Required | 1 |
1061646 Track Group-860mm Grouser Shoe
| 10***46 | Track Group; -2-Required | 1 |
1321337 Track Group-600mm Grouser Shoe
| 13***37 | Track Group; -2-Required | 1 |
1061619 Track Group-865mm Self Cleaning Shoe
| 10***19 | Track Group; Track Group | 1 |
1102980 Track Group-560mm Grouser Shoe
| 11***80 | Track Group; -2-Required | 1 |
Undercarriage Arrangement (1738651 N/S)
| 10***98 | Pivot Bar Group | 1 |
| 11***78 | Track Group; -2-Required | 2 |
| 11***45 | Mounting Group-Carrier Roller | 1 |
Undercarriage Arrangement (1738652 N/S)
| 10***46 | Track Group; -2-Required | 2 |
| 10***99 | Pivot Bar Group | 1 |
| 11***45 | Mounting Group-Carrier Roller | 1 |
Undercarriage Group (1989798 N/S)
| 10***09 | Cap Group-Track Idler | 8 |
| 12***72 | Roller Group-Track-Single Flange; (Single Flange) | 8 |
| 12***73 | Roller Group-Track-Double Flange; (Double Flange) | 8 |
Undercarriage Group (1989788 N/S)
| 12***72 | Roller Group-Track-Single Flange; (Single Flange) | 8 |
| 12***73 | Roller Group-Track-Double Flange; (Double Flange) | 8 |
| 19***46 | Idler Group-Track | 4 |
Fuel System
2178339 Filter Base Assembly
| 21***39 | Filter Base Assembly; (24-Volt) | 1 |
Water Separator And Fuel Filter Group (2729226 N/S)
| 27***26 | Filter Group-Water Sep & Fuel | 1 |
Water Separator And Fuel Filter Group (1865814 N/S)
| 18***14 | Filter Group-Water Sep & Fuel | 1 |
Fuel Lines Group (1919529 N/S)-Part 2 Of 2
| 19***29 | Lines Group-Fuel | 1 |
Fuel Lines Group (1919529 N/S)-Part 1 Of 2
| 19***29 | Lines Group-Fuel | 1 |
Fuel Filter Lines Group (2159260 N/S)
| 21***60 | Lines Group-Fuel Filter | 1 |
Unit Injector Pump And Mounting Group (2054161 N/S)
| 20***61 | Pump & Mtg Group-Unit Inj Hydraulic | 1 |
Fuel Priming Pump Lines Group (1975709 N/S)-Part 1 Of 3
| 19***09 | Pump Group-Fuel Priming | 1 |
Fuel Priming Pump Lines Group (1975709 N/S)-Part 3 Of 3
| 19***09 | Pump Group-Fuel Priming | 1 |
Fuel Priming Pump Lines Group (1975709 N/S)-Part 2 Of 3
| 19***09 | Pump Group-Fuel Priming | 1 |
Fuel Priming Pump And Primary Filter Group (2123657 N/S)
| 21***57 | Pump Group-Fuel Prm & Water Sep; -Electric-Primary Filter | 1 |
Fuel Injection Pump Group (1786343 N/S)
| 17***43 | Pump Group-Unit Injection; -Fuel | 1 |
1786343 Fuel Injector Group
| 17***42 | Pump Group-Unit Injection; -Fuel | 1 |
1807341 Unit Injector Pump Group
| 18***41 | Pump Group-Unit Injector Hydraulic | 1 |
Fuel Tank Group (1557707 N/S)
| 15***07 | Tank Group-Fuel | 1 |
1225053 Solenoid Valve Group-Pressure Control
| 12***53 | Valve Group-Solenoid | 1 |
Hydraulic System
9t2716 Cylinder Group-Ripper Lift-127mm Bore X 362mm Stroke
| 9T***16 | Cylinder Group-Ripper Lift; (Ripper Lift) | 1 |
Tank And Filter Group (1754485 N/S)-Part 1 Of 2
| 17***85 | Bucket As-General Purpose | 1 |
Tank And Filter Group (1744485 N/S)-Part 2 Of 2
| 17***85 | Bucket As-General Purpose | 1 |
Pilot Control Arrangement (2380962 N/S)
| 23***51 | Lines Group-Pilot; -Bulldozer Lift, Tilt, Ripper | 1 |
| 23***28 | Control Group-Joystick; -Ripper | 1 |
| 23***27 | Lines Group-Pilot | 1 |
Pilot Control Arrangement (2548440 N/S)
| 25***40 | Control Ar-Pilot Hydraulic; -Bulldozer, Ripper | 1 |
| 25***41 | Valve & Mtg Group-Pilot; -Bulldozer | 1 |
Pilot Control Arrangement (2362078 N/S)
| 23***49 | Control Group-Pilot Operated Hydraulic; -Bulldozer Control | 1 |
| 23***50 | Lines Group-Pilot; -With Accumulator | 1 |
| 23***78 | Control Ar-Pilot Hydraulic; -Bulldozer Control | 1 |
2309136 Pilot Valve Group
| 23***36 | Control Group-Handle; -Ripper Control | 1 |
Hydraulic Hand Control Group (1643504 N/S)-Ripper-Part 1 Of 2
| 16***04 | Control Group-Hydraulic Hand; (Ripper) | 1 |
Hydraulic Hand Control Group (1568948 N/S)-Bulldozer-Part 1 Of 2
| 15***48 | Control Group-Hydraulic Hand; -Bulldozer Angle, Lift, Tilt | 1 |
Hydraulic Hand Control Group (1643504 N/S)-Ripper-Part 2 Of 2
| 16***04 | Control Group-Hydraulic Hand; (Ripper) | 1 |
Hydraulic Hand Control Group (1568948 N/S)-Bulldozer-Part 2 Of 2
| 15***48 | Control Group-Hydraulic Hand; -Bulldozer Angle, Lift, Tilt | 1 |
Ripper Valve Mounting Group (2372828 N/S)
| 23***28 | Control Group-Joystick; -Ripper | 1 |
Valve And Mounting Group (2300749 N/S)
| 23***49 | Control Group-Pilot Operated Hydraulic; -Bulldozer Control | 1 |
2066761 Control Valve Group-Lift
| 20***61 | Control Valve Group-Lift | 1 |
1153523 Cylinder Group-Tilt-165mm Bore X 128mm Stroke
| 11***23 | Cylinder Group; -Semi-Universal Bulldozer | 1 |
2280320 Cylinder Group-Angle-102mm Bore X 472mm Stroke
| 22***20 | Cylinder Group-Angling; -Bulldozer | 1 |
1103269 Cylinder Group-Lift-114mm Bore X 430mm Stroke
| 11***69 | Cylinder Group-Bulldozer Lift; -Power Angle Tilt | 1 |
2270842 Cylinder Group-Ripper Lift-127mm Bore X 362mm Stroke
| 22***42 | Cylinder Group-Ripper | 1 |
1600054 Cylinder Group-Tilt-140mm Bore X 114mm Stroke
| 16***54 | Cylinder Group-Tilt; -Bulldozer-Power Angle Tilt | 1 |
Hydraulic Arrangement (1569503 N/S)-3 Valve
| 15***48 | Control Group-Hydraulic Hand; -Bulldozer Angle, Lift, Tilt | 1 |
| 15***03 | Hydraulic Ar-3 Valve; -3 Valve | 1 |
| 16***37 | Pump & Lines Group-Hydraulic | 1 |
Hydraulic Arrangement (2302105 N/S)-3 Valve
| 23***05 | Hydraulic Ar-3 Valve; -3-Valve | 1 |
| 23***47 | Lines Group-Angle & Tilt | 1 |
| 23***48 | Lines Group-Lift Cylinder | 1 |
Hydraulic Arrangement (2546941 N/S)-4 Valve
| 23***52 | Lines Group-Ripper | 1 |
| 23***62 | Control Ar-Pilot Hydraulic; -Bulldozer, Ripper | 1 |
| 24***08 | Valve Group-Bank 4; -Bulldozer, Ripper | 1 |
Hydraulic Arrangement (2302140 N/S)-4 Valve-Hydraulic Implement
| 23***40 | Hydraulic Ar-4 Valve | 1 |
| 23***52 | Lines Group-Ripper | 1 |
| 23***62 | Control Ar-Pilot Hydraulic; -Bulldozer, Ripper | 1 |
Hydraulic Arrangement (1738641 N/S)-4 Valve
| 16***70 | Lines Group-Ripper; 448 | 1 |
| 16***04 | Control Group-Hydraulic Hand; (Ripper) | 1 |
| 17***41 | Hydraulic Ar-4 Valve | 1 |
Angle And Tilt Lines Group (1106113 N/S)-Part 1 Of 2
| 11***13 | Lines Group-Angle & Tilt | 1 |
Angle And Tilt Lines Group (1123447 N/S)-Part 2 Of 2
| 11***47 | Lines Group-Angle & Tilt | 1 |
Angle And Tilt Lines Group (1630761 N/S)-Part 1 Of 2
| 16***61 | Lines Group-Angle & Tilt | 1 |
Angle And Tilt Lines Group (1123447 N/S)-Part 1 Of 2
| 11***47 | Lines Group-Angle & Tilt | 1 |
Angle And Tilt Lines Group (1630761 N/S)-Part 2 Of 2
| 16***61 | Lines Group-Angle & Tilt | 1 |
Angle And Tilt Lines Group (1106113 N/S)-Part 2 Of 2
| 11***13 | Lines Group-Angle & Tilt | 1 |
Angle And Tilt Lines Group (2308747 N/S)-Part 2 Of 2
| 23***47 | Lines Group-Angle & Tilt | 1 |
Angle And Tilt Lines Group (2308747 N/S)-Part 1 Of 2
| 23***47 | Lines Group-Angle & Tilt | 1 |
Diagnostic Lines Group (1985179 N/S)-Remote-Part 1 Of 2
| 19***79 | Lines Group-Diagnostic; -Hydraulic Oil | 1 |
Diagnostic Lines Group (2381023 N/S)-Remote-Part 2 Of 2
| 23***23 | Lines Group-Diagnostic; -Remote | 1 |
Diagnostic Lines Group (1985179 N/S)-Remote-Part 2 Of 2
| 19***79 | Lines Group-Diagnostic; -Hydraulic Oil | 1 |
Diagnostic Lines Group (2381023 N/S)-Remote-Part 1 Of 2
| 23***23 | Lines Group-Diagnostic; -Remote | 1 |
Lift Cylinder Lines Group (2200896 N/S)
| 22***96 | Lines Group-Lift Cylinder; -Cab-Frame | 1 |
Lift Cylinder Lines Group (2200897 N/S)
| 22***97 | Lines Group-Lift Cylinder; (Power Angle, Tilt Blade) | 1 |
Lift Cylinder Lines Group (2308748 N/S)
| 23***48 | Lines Group-Lift Cylinder | 1 |
Pilot Lines Group (2374427 N/S)-Part 2 Of 2
| 23***27 | Lines Group-Pilot | 1 |
Pilot Lines Group (2308750 N/S)-Part 2 Of 2
| 23***50 | Lines Group-Pilot; -With Accumulator | 1 |
Pilot Lines Group (2308751 N/S)
| 23***51 | Lines Group-Pilot; -Bulldozer Lift, Tilt, Ripper | 1 |
Pilot Lines Group (2308750 N/S)-Part 1 Of 2
| 23***50 | Lines Group-Pilot; -With Accumulator | 1 |
Pilot Lines Group (2374427 N/S)-Part 1 Of 2
| 23***27 | Lines Group-Pilot | 1 |
Pump Lines Group (2334992 N/S)-Part 2 Of 3
| 23***92 | Lines Group-Pump | 1 |
Pump Lines Group (2334992 N/S)-Part 1 Of 3
| 23***92 | Lines Group-Pump | 1 |
Pump Lines Group (2324992 N/S)-Part 3 Of 3
| 23***92 | Lines Group-Pump | 1 |
Ripper Lines Group (1804561 N/S)
| 18***61 | Lines Group-Ripper | 1 |
Ripper Lines Group (2308752 N/S)
| 23***52 | Lines Group-Ripper | 1 |
Ripper Lines Group (1633270 N/S)
| 16***70 | Lines Group-Ripper; 448 | 1 |
Tilt Cylinder Lines Group (2547283 N/S)
| 25***83 | Lines Group-Tilt Cylinder | 1 |
Valve Mounting Group (2180100 N/S)
| 21***00 | Mounting Group-Valve; -Implement Control | 1 |
Valve Mounting Group (2310451 N/S)
| 23***51 | Mounting Group-Valve; -Implement | 1 |
Pump Lines Group (1604137 N/S)-Part 1 Of 3
| 16***37 | Pump & Lines Group-Hydraulic | 1 |
Pump Lines Group (1604137 N/S)-Part 3 Of 3
| 16***37 | Pump & Lines Group-Hydraulic | 1 |
Pump Lines Group (1604137 N/S)-Part 2 Of 3
| 16***37 | Pump & Lines Group-Hydraulic | 1 |
1569084 Piston Pump Group-Slipper
| 15***84 | Pump Group-Piston; -Hydraulic | 1 |
1972849 Rotating Pump Group
| 19***49 | Rotating Group-Pump; -Implement-Implement Control | 1 |
Tank And Filter Group (2309131 N/S)-Part 1 Of 2
| 23***31 | Tank & Filter Group-Hydraulic | 1 |
Tank And Filter Group (2309131 N/S)-Part 2 Of 2
| 23***31 | Tank & Filter Group-Hydraulic | 1 |
Tilt Cylinder Lines Group (1274128 N/S)
| 12***28 | Tilt Cylinder Lines Group | 1 |
Valve And Mounting Group (2548441 N/S)
| 12***70 | Capscrew; (Button Hd) (M8x1.25x20) (G10.9) | 4 |
| 23***89 | Valve Group-Pilot; -Bulldozer Control | 1 |
| 25***41 | Valve & Mtg Group-Pilot; -Bulldozer | 1 |
2096765 Valve Group-Bank-3
| 20***65 | Valve Group-Bank 3; -Bulldozer Angle, Lift, Tilt | 1 |
2464206 Valve Group-Bank-3
| 24***06 | Valve Group-Bank 3; -Dozer Angle, Front Lift, Wing Tilt | 1 |
Valve Group (2096764 N/S)-Bank-4
| 20***64 | Valve Group-Bank 4; -Angle, Lift, Ripper, Tilt | 1 |
2464208 Valve Group-Bank-4
| 24***08 | Valve Group-Bank 4; -Bulldozer, Ripper | 1 |
6e4954 Control Valve Group-Angle
| 6E***54 | Valve Group-Control; -Blade Angle | 1 |
2464211 Control Valve Group-Lift
| 24***11 | Valve Group-Control; -Bulldozer Lift | 1 |
2464212 Control Valve Group-Lift
| 24***12 | Valve Group-Control; -Bulldozer Lift | 1 |
2464214 Control Valve Group-Tilt
| 24***14 | Valve Group-Control; -Bulldozer Tilt | 1 |
2471745 Control Valve Group-Ripper
| 24***45 | Valve Group-Control; (Ripper) | 1 |
2384825 Control Valve Group-Angle
| 23***25 | Valve Group-Control; -Blade Angle | 1 |
6e4952 Control Valve Group-Ripper
| 6E***52 | Valve Group-Control | 1 |
Control Valve Group (2096762 N/S)-Lift
| 20***62 | Valve Group-Control; -Bulldozer Lift | 1 |
6e4953 Control Valve Group-Tilt
| 6E***53 | Valve Group-Control; -Bulldozer Tilt | 1 |
1620162 Reducing And Manifold Valve Group
| 16***62 | Valve Group-Manifold & Reducing; -Implement Pilot Lines | 1 |
2350889 Pilot Valve Group-Part 1 Of 2
| 23***89 | Valve Group-Pilot; -Bulldozer Control | 1 |
2409651 Pilot Valve Group-Part 2 Of 2
| 24***51 | Valve Group-Pilot; -Bulldozer Control | 1 |
2409651 Pilot Valve Group-Part 1 Of 2
| 24***51 | Valve Group-Pilot; -Bulldozer Control | 1 |
2350889 Pilot Valve Group-Part 2 Of 2
| 23***89 | Valve Group-Pilot; -Bulldozer Control | 1 |
1633108 Cartridge Assembly
| 16***08 | Valve Group-Pilot Cartridge; -Blade Tilt Right, Left | 1 |
Cartridge Assembly (2430665 N/S)
| 24***65 | Valve Group-Pilot Cartridge; -Bulldozer Lift, Lower | 1 |
1703357 Pressure Reducing Valve Group
| 17***57 | Valve Group-Pressure Reducing; -Implement Pilot Lines | 1 |
1682210 Pressure And Flow Compensator Valve Group
| 16***10 | Valve Group-Pump Control; -Pressure, Flow Compensator-Hydraulic Oil Clg Fan Piston Pump | 1 |
2258026 Relief Valve Group-Direct Operated
| 22***26 | Valve Group-Relief; -Pilot Manifold Pressure | 1 |
Implements
Bar Group (1382447 N/S)
| 11***98 | Tie Bolt; (4 Roller) | 1 |
| 11***14 | Spacer Tube | 1 |
| 11***23 | Lock Washer; (1 3/4) (4 Roller) | 1 |
Brake Assembly (1207698 N/S)
| 00***91 | Cup-Roller Bearing | 1 |
| 09***71 | Pipe Plug (1/8 Npt) | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
Brake Assembly (2111630 N/S)
| 21***30 | Brake Assembly | 1 |
Bulldozer Arrangement (2236304 N/S)-Power Angle And Tilt
| 10***26 | Bearing | 2 |
| 10***59 | Ring | 4 |
| 11***69 | Cylinder Group-Bulldozer Lift; -Power Angle Tilt | 2 |
Bulldozer Arrangement (2236303 N/S)-Power Angle And Tilt
| 10***26 | Bearing | 2 |
| 10***59 | Ring | 4 |
| 11***69 | Cylinder Group-Bulldozer Lift; -Power Angle Tilt | 2 |
Bulldozer Arrangement (1261150 N/S)
| 12***50 | Bulldozer Arrangement | 1 |
| 12***16 | Straight Blade Group | 2 |
| 12***23 | Push Arm Group | 1 |
Bulldozer Trunnion Group (1274136 N/S)
| 12***36 | Bulldozer Trunnion Group | 1 |
C-Frame Group (1127443 N/S)
| 11***43 | C-Frame Group-Power Angling | 1 |
C-Frame Group (1105226 N/S)-Power Angling
| 11***26 | C-Frame Group-Power Angling | 1 |
Clutch Assembly (2111631 N/S)
| 21***31 | Clutch Assembly | 1 |
Cover Group (1382440 N/S)
| 13***40 | Covers | 1 |
Drive Group (1433438 N/S)
Drum Drive Group (1433441 N/S)
| 14***41 | Drum Drive | 1 |
Fairlead Assembly (1187213 N/S)
| 11***11 | Fairlead Assembly | 1 |
| 11***13 | Fairlead Assembly | 1 |
| 17***70 | Fleet Roller Kit; (4 Roller) | 1 |
Fairlead Assembly (1187211 N/S)-3 Rollers
| 11***11 | Fairlead Assembly | 1 |
Fleet Roller Kit (1744770 N/S)
| 17***70 | Fleet Roller Kit; (4 Roller) | 1 |
Gear Group (1407278 N/S)
Gear Group (1433444 N/S)
Hydraulic Control Group (1433440 N/S)-Part 2 Of 2
| 14***40 | Hydraulic Control | 1 |
Hydraulic Control Group (1433440 N/S)-Part 1 Of 2
| 14***40 | Hydraulic Control | 1 |
Link Group (1905328 N/S)
| 19***28 | Link Group-Pitch | 1 |
Main Drive Shaft Group (1407277 N/S)
| 14***77 | Main Drive Shaft | 1 |
Main Drive Shaft Group (1433442 N/S)
| 14***42 | Main Drive Shaft | 1 |
Ripper Mounting Group (3a8609 N/S)
| 3A***09 | Mounting Group-Ripper | 1 |
Link Group (1346775 N/S)
| 13***75 | Pin Group-Cylinder; -Bulldozer | 1 |
Push Arm Group (1274123 N/S)
| 12***23 | Push Arm Group | 1 |
Ripper Arrangement (1804560 N/S)
| 15***22 | Ripper Group | 1 |
| 18***60 | Ripper Ar; -Multishank | 1 |
| 18***61 | Lines Group-Ripper | 1 |
Ripper Group (1555322 N/S)
| 15***22 | Ripper Group | 1 |
Shaft Group (1382443 N/S)
| 11***87 | Thrust Washer .217 In. (5.5 mm) | 1 |
| 11***97 | Spacer | 1 |
| 11***33 | Countershaft Pin | 1 |
Towing Winch Arrangement (1254288 N/S)
| 12***42 | Winch Pump | 1 |
| 12***24 | Control Cable - 90 In. (2286 mm); W/O Freespool Qty Is 2 | 3 |
| 12***88 | Towing Winch Arrangement | 1 |
Towing Winch Arrangement (1254289 N/S)
| 12***42 | Winch Pump | 1 |
| 12***24 | Control Cable - 90 In. (2286 mm); W/O Freespool Qty Is 2 | 3 |
| 12***89 | Towing Winch Arrangement | 1 |
Adapter Group (1744769 N/S)
| 17***69 | Winch Adapter | 1 |
Winch Case Group (1433439 N/S)
| 13***40 | Covers | 1 |
| 13***47 | Bar | 1 |
| 14***39 | Winch Case | 1 |
Winch Case Group (1407276 N/S)
| 13***40 | Covers | 1 |
| 13***47 | Bar | 1 |
| 14***76 | Winch Case | 1 |
Winch Control Group (1407281 N/S)-Part 1 Of 2
| 14***81 | Winch Control | 1 |
Winch Control Group (1433455 N/S)
| 14***55 | Winch Control | 1 |
Winch Control Group (1407281 N/S)-Part 2 Of 2
| 14***81 | Winch Control | 1 |
Winch Mounting Group (1433456 N/S)
| 14***56 | Winch Control | 1 |
Winch Gear Group (1382445 N/S)
| 11***04 | O-Ring | 1 |
| 11***54 | Shim Gasket | 1 |
| 11***55 | Shim; (.005 In.) (.13 mm) | 2 |
Winch Guard Group (1407280 N/S)
| 14***80 | Winch Guard | 1 |
Winch Mounting Group (1407279 N/S)
| 11***82 | Draw Bar Pin | 1 |
| 14***79 | Winch Mounting | 1 |
| 14***55 | Winch Control | 1 |
Winch Pump Group (1207542 N/S)
| 12***42 | Winch Pump | 1 |
Winch Shaft Group (1433445 N/S)
| 14***45 | Winch Shaft | 1 |
Lubrication System
Breather Group (1208971 N/S)
| 12***71 | Breather Group; -Engine | 1 |
Engine Oil Filter Group (1174074 N/S)
| 11***74 | Filter Group-Engine Oil | 1 |
Fumes Disposal Group (2111835 N/S)
| 21***35 | Fumes Disposal Group | 1 |
Engine Oil Lines Group (2195853 N/S)
| 21***53 | Lines Group-Engine Oil | 1 |
2004497 Gerotor Pump Group
| 20***97 | Pump Group-Engine Oil | 1 |
Engine Oil Pump Group (2122270 N/S)
| 21***70 | Pump Group-Engine Oil | 1 |
Machine Arrangement
General Arrangement (1569493 N/S)
| 15***93 | General Ar | 1 |
| 15***97 | Chassis Ar | 1 |
| 15***03 | Hydraulic Ar-3 Valve; -3 Valve | 1 |
General Arrangement (1569495 N/S)
| 15***95 | General Ar | 1 |
| 15***97 | Chassis Ar | 1 |
| 15***03 | Hydraulic Ar-3 Valve; -3 Valve | 1 |
Operator Station
6w8505 Seat Adjuster Group
| 6W***05 | Adjuster Group-Seat; -Suspension | 1 |
Air Conditioner Group (1671458 N/S)
| 10***20 | Air Conditioner Group; -Waste Handling | 1 |
| 16***58 | Air Conditioner Group | 1 |
| 17***93 | Lines Group-Air Conditioner; -Compressor | 1 |
Air Conditioner Group (1080720 N/S)
| 10***20 | Air Conditioner Group; -Waste Handling | 1 |
3e6328 Alarm Group-24v
| 3E***28 | Alarm Group; -Caterpillar Monitoring System-Action | 1 |
1987281 Blower Group-Part 1 Of 2
| 19***81 | Blower Group-Cab | 1 |
1987281 Blower Group-Part 2 Of 2
| 19***81 | Blower Group-Cab | 1 |
Cab Arrangement (1569516 N/S)
| 15***15 | Mounting Group-Cab | 1 |
| 15***16 | Cab Ar | 1 |
| 16***55 | Tank Group-Window Washer | 1 |
Cab Group (2173818 N/S)
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***05 | Kit-Receptacle; (6-Pin)(Display Monitor Harness) | 1 |
| 15***65 | Kit-Connecting Plug; (8-Pin)(Electronic Control Channel) | 1 |
Cab Group (1568911 N/S)-Part 2 Of 3
| 15***11 | Cab Group-Enclosed Rops | 1 |
Cab Group (1568911 Cab)-Part 1 Of 3
| 15***11 | Cab Group-Enclosed Rops | 1 |
Cab Group (2532422 N/S)
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***05 | Kit-Receptacle; (6-Pin)(Display Monitor Harness) | 1 |
| 15***65 | Kit-Connecting Plug; (8-Pin)(Electronic Control Channel) | 1 |
Cab Group (1568911 N/S)-Part 3 Of 3
| 15***11 | Cab Group-Enclosed Rops | 1 |
Canopy Arrangement (1569509 N/S)
| 15***09 | Canopy Ar-Open Rops | 1 |
| 15***50 | Seat Group-Suspension; -Vinyl | 1 |
| 16***60 | Rops Group | 1 |
Refrigerant Compressor Group (1892229 N/S)
| 18***29 | Compressor Group-Refrigerant; (Air Conditioner) | 1 |
1752540 Condenser Group
| 17***40 | Condenser Group-Refrigerant | 1 |
2454413 Condenser Group
| 24***13 | Condenser Group-Refrigerant | 1 |
Electronic Control Group (1566155 N/S)-Machine Security System
| 15***55 | Control Group-Unprogrammed; -Machine Security System | 1 |
Console Cover Group (2021871 N/S)-Lh
| 20***71 | Cover Group-Console; -Ftc | 1 |
Console Cover Group (1756956 N/S)-Part 2 Of 2
| 17***56 | Cover Group-Console; -Cab | 1 |
Console Cover Group (1756956 N/S)-Part 1 Of 2
| 17***56 | Cover Group-Console; -Cab | 1 |
Console Cover Group (2372820 N/S)-Part 2 Of 2
| 23***20 | Cover Group-Console; -Hydraulic Implement | 1 |
Console Cover Group (2372820 N/S)-Part 1 Of 2
| 23***20 | Cover Group-Console; -Hydraulic Implement | 1 |
Console Cover Group (1773860 N/S)-Part 2 Of 2
| 17***60 | Cover Group-Console; -Cab | 1 |
Implement Console Cover Group (1671463 N/S)
| 16***63 | Cover Group-Console; -Hydraulic Implement | 1 |
Console Cover Group (1773860 N/S)
| 17***60 | Cover Group-Console; -Cab | 1 |
Implement Console Cover Group (2377282 N/S)
| 23***82 | Cover Group-Console; -Hydraulic Implement | 1 |
Console Cover Group (1773860 N/S)-Part 1 Of 2
| 17***60 | Cover Group-Console; -Cab | 1 |
8y4206 Cushion Assembly
| 8Y***06 | Cushion Assembly | 1 |
Door Group (1671453 N/S)-Lh
| 16***53 | Door Group-Cab; (L.H.) | 1 |
Door Group (1671451 N/S)-Rh
| 16***51 | Door Group-Cab; (R.H.) | 1 |
2075262 Electronic Control Group
| 20***62 | Electronics Group-Machine | 1 |
2781515 Harness Assembly-Part 3 Of 4
| 27***15 | Harness Assembly | 1 |
2781515 Harness Assembly-Part 4 Of 4
| 27***15 | Harness Assembly | 1 |
2490536 Harness Assembly-Part 4 Of 4
| 24***36 | Harness Assembly | 1 |
2639234 Harness Assembly-Part 4 Of 4
| 26***34 | Harness Assembly | 1 |
1117198 Harness Assembly
| 11***98 | Harness Assembly; (Blower) | 1 |
2524831 Harness Assembly-Part 1 Of 4
| 25***31 | Harness Assembly | 1 |
2367489 Harness Assembly-Part 2 Of 2
| 23***89 | Harness Assembly | 1 |
2342791 Harness Assembly
| 23***91 | Harness Assembly; (Circuit Breaker) | 1 |
2490536 Harness Assembly-Part 1 Of 4
| 24***36 | Harness Assembly | 1 |
2132985 Harness Assembly
| 21***85 | Harness Assembly; (Circuit Breaker) | 1 |
2639234 Harness Assembly-Part 1 Of 4
| 26***34 | Harness Assembly | 1 |
2416745 Harness Assembly
| 24***45 | Harness Assembly; (Rops)(Back-Up Alarm) | 1 |
2524831 Harness Assembly-Part 3 Of 4
| 25***31 | Harness Assembly | 1 |
2639234 Harness Assembly-Part 2 Of 4
| 26***34 | Harness Assembly | 1 |
2363943 Harness Assembly-Part 2 Of 2
| 23***43 | Harness Assembly; (Instrument Panel) | 1 |
1609149 Harness Assembly-Part 2 Of 2
| 16***49 | Harness Assembly | 1 |
2524831 Harness Assembly-Part 2 Of 4
| 25***31 | Harness Assembly | 1 |
Harness Assembly (2758264 N/S)
| 27***64 | Harness Assembly | 1 |
2490536 Harness Assembly-Part 2 Of 4
| 24***36 | Harness Assembly | 1 |
2639234 Harness Assembly-Part 3 Of 4
| 26***34 | Harness Assembly | 1 |
2331108 Harness Assembly-Part 1 Of 4
| 23***08 | Harness Assembly | 1 |
2197355 Harness Assembly
| 21***55 | Harness Assembly | 1 |
1609149 Harness Assembly-Part 1 Of 2
| 16***49 | Harness Assembly | 1 |
2163854 Harness Assembly
| 21***54 | Harness Assembly; (Security) | 1 |
2524831 Harness Assembly-Part 4 Of 4
| 25***31 | Harness Assembly | 1 |
2331108 Harness Assembly-Part 3 Of 4
| 23***08 | Harness Assembly | 1 |
2781515 Harness Assembly-Part 2 Of 4
| 27***15 | Harness Assembly | 1 |
2132980 Harness Assembly-Part 2 Of 2
| 21***80 | Harness Assembly | 1 |
2132980 Harness Assembly-Part 1 Of 2
| 21***80 | Harness Assembly | 1 |
2363943 Harness Assembly-Part 1 Of 2
| 23***43 | Harness Assembly; (Instrument Panel) | 1 |
2343321 Harness Assembly
| 23***21 | Harness Assembly; (Back-Up Alarm) | 1 |
2331108 Harness Assembly-Part 4 Of 4
| 23***08 | Harness Assembly | 1 |
2781515 Harness Assembly-Part 1 Of 4
| 27***15 | Harness Assembly | 1 |
2575453 Harness Assembly
| 25***53 | Harness Assembly; (Platform) | 1 |
2367489 Harness Assembly-Part 1 Of 2
| 23***89 | Harness Assembly | 1 |
2331108 Harness Assembly-Part 2 Of 4
| 23***08 | Harness Assembly | 1 |
2490536 Harness Assembly-Part 3 Of 4
| 24***36 | Harness Assembly | 1 |
Cab Heater Group (1757654 N/S)
| 17***54 | Heater Group-Cab | 1 |
1742231 Suspension Housing Group-Part 1 Of 2
| 17***31 | Housing Group-Seat Suspension | 1 |
1742231 Suspension Housing Group-Part 2 Of 2
| 17***31 | Housing Group-Seat Suspension | 1 |
Indicator Group (1789018 N/S)-Filter Change
| 17***18 | Indicator Group-Air Filter Change | 1 |
Engine Conditioner Group (2046414 N/S)
| 20***14 | Installation Group-Lines; -Air Conditioner | 1 |
Radio Installation Group (1943333 N/S)
| 19***33 | Installation Group-Radio | 1 |
Protective Group (1726031 N/S)
| 17***31 | Installation Group-Security | 1 |
Protective Group (2383281 N/S)
| 23***81 | Installation Group-Security | 1 |
Cab Protective Group (2220297 N/S)
| 22***97 | Installation Group-Security | 1 |
Cab Protective Group (2383282 N/S)
| 23***82 | Installation Group-Security | 1 |
Insulation Group (1773851 N/S)
| 17***51 | Insulation Group-Weather | 1 |
3e6389 Dome Lamp Group
| 3E***89 | Lamp Group-Dome; -With Switch-Cab, Rh, Lh | 1 |
Latch Group (1943315 N/S)
| 19***15 | Latch Group; -Cab | 1 |
Cab Liner Group (1702084 N/S)
| 17***84 | Liner Group-Cab | 1 |
Air Conditioner Lines Group (1719593 N/S)-Part 1 Of 2
| 17***93 | Lines Group-Air Conditioner; -Compressor | 1 |
Air Conditioner Lines Group (1719593 N/S)-Part 2 Of 2
| 17***93 | Lines Group-Air Conditioner; -Compressor | 1 |
Heater Installation Group (2223800 N/S)
| 22***00 | Lines Group-Heater | 1 |
Heater Lines Group (1719592 N/S)
| 17***92 | Lines Group-Heater | 1 |
Literature Group (2p8540 N/S)-Owner And Operator
| 2P***40 | Literature Group | 1 |
| 7F***00 | Bag Containing Literature; As Specified On The Factory Notification List Of Current Service Publications | 1 |
Literature Group (5p2506 N/S)-Owner And Operator
| 5P***06 | Literature Group | 1 |
| 7F***00 | Bag Containing Literature; As Specified On The Factory Notification List Of Current Service Publications | 1 |
Literature Group (6v1971 N/S)
| 24***41 | Padlock Group; (1 On Fuel Tank Cap) (1 On Hydraulic Tank Cap) (1 On Grill Latch) | 1 |
| 5P***58 | Sleeve; (Cable Splice) | 1 |
| 5P***00 | Key Total 2 Pieces Per Unit; (Literature Compartment) | 2 |
Mirror Group (8e8706 N/S)
| 8E***06 | Mirror Group-Rear View | 1 |
1666928 Electronic Control Group-Quad Gage Module
| 16***28 | Module Group-Quad Gauge; -Engine Coolant Temp, Transmission Oil Temp, Hydraulic Oil Temp, Fuel Level | 1 |
Cover And Mounting Group (1568915 N/S)
| 15***15 | Mounting Group-Cab | 1 |
Circuit Breaker Panel Group (1568378 N/S)-Part 2 Of 2
| 15***78 | Panel Group-Circuit Breaker | 1 |
Circuit Breaker Panel Group (1568378 N/S)-Part 1 Of 2
| 15***78 | Panel Group-Circuit Breaker | 1 |
Circuit Breaker Panel Group (2342789 N/S)-Part 1 Of 2
| 23***89 | Panel Group-Circuit Breaker | 1 |
Circuit Breaker Panel Group (2758263 N/S)-Part 2 Of 2
| 27***63 | Panel Group-Circuit Breaker | 1 |
Circuit Breaker Panel Group (2342789 N/S)-Part 2 Of 2
| 23***89 | Panel Group-Circuit Breaker | 1 |
Circuit Breaker Panel Group (2485667 N/S)-Part 2 Of 2
| 24***67 | Panel Group-Circuit Breaker | 1 |
Circuit Breaker Panel Group (2485667 N/S)-Part 1 Of 2
| 24***67 | Panel Group-Circuit Breaker | 1 |
Circuit Breaker Panel Group (2758263 N/S)-Part 1 Of 2
| 27***63 | Panel Group-Circuit Breaker | 1 |
Instrument Group (1652790 N/S)-Part 1 Of 2
| 16***90 | Panel Group-Instrument; -Open Rops | 1 |
Instrument Group (1652790 N/S)-Part 2 Of 2
| 16***90 | Panel Group-Instrument; -Open Rops | 1 |
Instrument Group (1568951 N/S)-Part 2 Of 2
| 15***51 | Panel Group-Instrument; -Cab | 1 |
Instrument Group (1568951 N/S)-Part 1 Of 2
| 15***51 | Panel Group-Instrument; -Cab | 1 |
Instrument Group (1652790 N/S)-Open-Part 1 Of 2
| 16***90 | Panel Group-Instrument; -Open Rops | 1 |
Instrument Group (1652790 N/S)-Open-Part 2 Of 2
| 16***90 | Panel Group-Instrument; -Open Rops | 1 |
Insulation Group (2173815 N/S)
| 21***15 | Panel Group-Insulation; (Sound) | 1 |
Platform Group (2183063 N/S)
| 10***05 | Kit-Receptacle; (6-Pin)(Display Monitor Harness) | 1 |
| 15***65 | Kit-Connecting Plug; (8-Pin)(Electronic Control Channel) | 1 |
| 15***55 | Control Group-Steering & Xmsn | 1 |
Platform Group (2532425 N/S)
| 10***05 | Kit-Receptacle; (6-Pin)(Display Monitor Harness) | 1 |
| 15***65 | Kit-Connecting Plug; (8-Pin)(Electronic Control Channel) | 1 |
| 15***55 | Control Group-Steering & Xmsn | 1 |
Pressurizer Group (1630152 N/S)-Part 1 Of 2
| 16***52 | Pressurizer Group-Cab | 1 |
Pressurizer Group (1630152 N/S)-Part 2 Of 2
| 16***52 | Pressurizer Group-Cab | 1 |
Seat Recliner Group (1774935 N/S)
| 17***35 | Recliner Group-Seat | 1 |
Rollover Protective Structure Group (1671460 N/S)-Open-Part 2 Of 2
| 16***60 | Rops Group | 1 |
Rollover Protective Structure Group (1671460 N/S)-Part 1 Of 2
| 16***60 | Rops Group | 1 |
Rollover Protective Structure Group (1671460 N/S)-Open-Part 1 Of 2
| 16***60 | Rops Group | 1 |
Rollover Protective Structure Group (1671460 N/S)-Part 2 Of 2
| 16***60 | Rops Group | 1 |
Rollover Group (1671457 N/S)
| 16***57 | Rops Group-Enclosed | 1 |
Protective Screen Group (1757225 N/S)
| 17***25 | Screen Group-Protection; -Rear | 1 |
Sun Screen Group (1736772 N/S)
| 17***72 | Screen Group-Sun | 1 |
1807304 Seat Group-Vinyl-Part 1 Of 2
| 18***04 | Seat Group; (Vinyl) | 1 |
1780606 Seat Group-Fabric
| 17***06 | Seat Group | 1 |
1807304 Seat Group-Vinyl-Part 2 Of 2
| 18***04 | Seat Group; (Vinyl) | 1 |
1780603 Seat Group-Basic-Fabric-Part 2 Of 2
| 17***03 | Seat Group; (Fabric) | 1 |
1846011 Seat Group-Vinyl
| 18***11 | Seat Group | 1 |
1780603 Seat Group-Basic-Fabric-Part 1 Of 2
| 17***03 | Seat Group; (Fabric) | 1 |
Suspension Seat Group (2277011 N/S)-Vinyl
| 22***11 | Seat Group-Suspension; -Vinyl | 1 |
Suspension Seat Group (2277013 N/S)-Vinyl
| 22***13 | Seat Group-Suspension; -Vinyl, Low Back | 1 |
1607186 Suspension Seat Group
| 16***86 | Seat Group-Suspension; -Cloth | 1 |
1592950 Suspension Seat Group
| 15***50 | Seat Group-Suspension; -Vinyl | 1 |
2003174 Suspension Seat Group
| 20***74 | Seat Group-Suspension; -Cloth, Air-Cloth | 1 |
6w9744 Suspension Seat Group-Vinyl
| 6W***44 | Seat Group-Suspension; -Vinyl, Low Back | 1 |
Suspension Seat Group (2277012 N/S)-Fabric
| 22***12 | Seat Group-Suspension; -Cloth, Air | 1 |
Suspension Seat Group (2277010 N/S)
| 22***10 | Seat Group-Suspension; -Cloth | 1 |
Step Group (1773852 N/S)
| 17***52 | Step Group | 1 |
1912933 Seat Suspension Group-Air-Part 2 Of 2
| 19***33 | Suspension Group-Seat; -Air-Cloth | 1 |
1912933 Seat Suspension Group-Air-Part 1 Of 2
| 19***33 | Suspension Group-Seat; -Air-Cloth | 1 |
6w8502 Seat Suspension Group-Part 1 Of 2
| 6W***02 | Suspension Group-Seat | 1 |
1607165 Seat Suspension Group-Part 2 Of 2
| 16***65 | Suspension Group-Seat | 1 |
1607165 Seat Suspension Group-Part 1 Of 2
| 16***65 | Suspension Group-Seat | 1 |
6w8502 Seat Suspension Group-Part 2 Of 2
| 6W***02 | Suspension Group-Seat | 1 |
Sweep Group (2250435 N/S)-Orops
| 22***35 | Sweep Group; -Open Rops | 1 |
Sweep Group (2251271 N/S)-Erops
| 22***71 | Sweep Group; -Enclosed Rops | 1 |
1670138 Magnetic Switch Assembly
| 16***38 | Switch Group-Magnetic; -Main Relay-Main Power Relay | 1 |
2418368 Magnetic Switch Assembly
| 24***68 | Switch Group-Magnetic; -Main Power Relay-Main Relay | 1 |
Washer Bottle Group (1671455 N/S)
| 16***55 | Tank Group-Window Washer | 1 |
1662103 Window Group-Lh
| 16***03 | Window Group-Cab; -Lh | 1 |
1662104 Window Group-Rh
| 16***04 | Window Group-Cab; -Rh | 1 |
Cab Window Group (1568916 N/S)
| 15***16 | Window Group-Cab | 1 |
1126174 Rotary Switch Assembly-Wiper And Washer
| 11***74 | Wiper And Washer Switch Assembly; (Wiper, Washer)(Wiper, Washer, Rear) | 1 |
Wiper Group (1702086 N/S)-Part 1 Of 2
| 17***86 | Wiper Group-Window | 1 |
Wiper Group (1702086 N/S)-Part 2 Of 2
| 17***86 | Wiper Group-Window | 1 |
Platform Wiring Group (2374485 N/S)-Part 1 Of 3
| 23***85 | Wiring Group-Platform | 1 |
Platform Wiring Group (2374491 N/S)-Part 1 Of 3
| 23***91 | Wiring Group-Platform | 1 |
Platform Wiring Group (2374485 N/S)-Part 3 Of 3
| 23***85 | Wiring Group-Platform | 1 |
Platform Wiring Group (2374485 N/S)-Part 2 Of 3
| 23***85 | Wiring Group-Platform | 1 |
Platform Wiring Group (2374491 N/S)-Part 3 Of 3
| 23***91 | Wiring Group-Platform | 1 |
Platform Wiring Group (1567378 N/S)-Part 3 Of 3
| 15***78 | Wiring Group-Platform | 1 |
Platform Wiring Group (2374491 N/S)-Part 2 Of 3
| 23***91 | Wiring Group-Platform | 1 |
Platform Wiring Group (1567378 N/S)-Part 1 Of 3
| 15***78 | Wiring Group-Platform | 1 |
Platform Wiring Group (1567378 N/S)-Part 2 Of 3
| 15***78 | Wiring Group-Platform | 1 |
Power Train
Transmission Hydraulic Control Group (2053603 N/S)-Part 1 Of 2
| 20***03 | Control Group-Transmission Hydraulic | 1 |
Transmission Hydraulic Control Group (2053603 N/S)-Part 2 Of 2
| 20***03 | Control Group-Transmission Hydraulic | 1 |
Final Drive Group (1961864 N/S)-Part 2 Of 2
| 19***64 | Drive Group-Final | 1 |
Final Drive Group (1961865 N/S)-Lgp-Part 1 Of 2
| 19***65 | Drive Group-Final | 1 |
Final Drive Group (1961865 N/S)-Lgp-Part 2 Of 2
| 19***65 | Drive Group-Final | 1 |
Final Drive Group (1961864 N/S)-Part 1 Of 2
| 19***64 | Drive Group-Final | 1 |
2386809 Power Train Oil Filter Group
| 23***09 | Filter Group-Oil | 1 |
1780568 Transmission Filter Group
| 17***68 | Filter Group-Oil; -Power Train-Transmission Charging | 1 |
Bevel And Transfer Gear Group (1783681 N/S)-Part 2 Of 2
| 17***81 | Gear Group-Bevel & Transfer | 1 |
Bevel And Transfer Gear Group (1783681 N/S)-Part 1 Of 2
| 17***81 | Gear Group-Bevel & Transfer | 1 |
2054626 Harness Assembly
| 20***26 | Harness Assembly; (Transmission) | 1 |
2426229 Harness Assembly
| 24***29 | Harness Assembly; (Transmission Output Speed) | 1 |
2236517 Harness Assembly
| 22***17 | Harness Assembly; (Transmission Output Speed) | 1 |
Power Train Oil Lines Group (1631059 N/S)-Part 4 Of 4
| 16***59 | Lines Group-Power Train Oil | 1 |
Power Train Oil Lines Group (2363974 N/S)-Part 2 Of 4
| 23***74 | Lines Group-Power Train Oil | 1 |
Power Train Oil Lines Group (2363974 N/S)-Part 3 Of 4
| 23***74 | Lines Group-Power Train Oil | 1 |
Power Train Oil Lines Group (1631059 N/S)-Part 1 Of 4
| 16***59 | Lines Group-Power Train Oil | 1 |
Power Train Oil Lines Group (1631059 N/S)-Part 3 Of 4
| 16***59 | Lines Group-Power Train Oil | 1 |
Power Train Oil Lines Group (2363974 N/S)-Part 4 Of 4
| 23***74 | Lines Group-Power Train Oil | 1 |
Power Train Oil Lines Group (2363974 N/S)-Part 1 Of 4
| 23***74 | Lines Group-Power Train Oil | 1 |
Power Train Oil Lines Group (1631059 N/S)-Part 2 Of 4
| 16***59 | Lines Group-Power Train Oil | 1 |
Torque Converter Mounting Group (2245367 N/S)
| 22***67 | Mounting Group-Torque Converter | 1 |
Transmission Mounting Group (1087039 N/S)
| 10***39 | Mounting Group-Transmission | 1 |
Planetary Group (2097222 N/S)-Part 5 Of 5
| 20***22 | Planetary Group-Transmission | 1 |
Planetary Group (2097222 N/S)-Part 1 Of 5
| 20***22 | Planetary Group-Transmission | 1 |
Planetary Group (2097222 N/S)-Part 3 Of 5
| 20***22 | Planetary Group-Transmission | 1 |
Planetary Group (2097222 N/S)-Part 4 Of 5
| 20***22 | Planetary Group-Transmission | 1 |
Planetary Group (2097222 N/S)-Part 2 Of 5
| 20***22 | Planetary Group-Transmission | 1 |
Power Train Arrangement (1751157 N/S)
| 10***39 | Mounting Group-Transmission | 1 |
| 13***61 | Shaft Group-Steering Clutch Input | 1 |
| 16***59 | Lines Group-Power Train Oil | 1 |
Power Train Arrangement (1751158 N/S)
| 10***39 | Mounting Group-Transmission | 1 |
| 13***61 | Shaft Group-Steering Clutch Input | 1 |
| 16***59 | Lines Group-Power Train Oil | 1 |
1788613 Gear Pump Group
| 17***13 | Pump Group-Gear; -Converter Scavenge-Torque Converter Oil-Xmsn Charging | 1 |
Gear Pump Group (1752787 N/S)
| 17***87 | Pump Group-Gear; -Power Train Oil | 1 |
Main Drive Shaft Group (1786690 N/S)
| 17***90 | Shaft Group-Drive | 1 |
Torque Converter Group (1752297 N/S)-Part 2 Of 2
| 17***97 | Torque Converter Group | 1 |
1752296 Torque Converter Group
| 17***96 | Torque Converter Group | 1 |
Torque Converter Group (1752297 N/S)-Part 1 Of 2
| 17***97 | Torque Converter Group | 1 |
1751171 Transmission Arrangement
| 17***71 | Transmission Ar | 1 |
| 17***81 | Gear Group-Bevel & Transfer | 1 |
| 20***03 | Control Group-Transmission Hydraulic | 1 |
2204324 Modulating Valve Group
| 22***24 | Valve Group-Modulating; -Transmission Control-Transmission Clutch | 1 |
1863396 Priority Valve Group-Part 2 Of 2
| 18***96 | Valve Group-Priority; -Power Train-Power Train Oil | 1 |
1863396 Priority Valve Group-Part 1 Of 2
| 18***96 | Valve Group-Priority; -Power Train-Power Train Oil | 1 |
6y8473 Relief Valve Group
| 6Y***73 | Valve Group-Relief; -Torque Converter Outlet | 1 |
2053602 Relief Valve Group
| 20***02 | Valve Group-Relief; -Transmission Control | 1 |
Service Equipment And Supplies
Film Group (1731618 N/S)
| 17***18 | Film Group | 1 |
Film Group (1731617 N/S)
| 17***17 | Film Group | 1 |
Film Group (1694551 N/S)
| 13***76 | Film; (Warning) (Universal) (Lh Side Post Inside Cab) | 1 |
| 16***70 | Film; (No Step) | 2 |
| 16***51 | Plate & Film Group | 1 |
Film Group (2424936 N/S)
| 22***45 | Film-Warning; (Seat Belt, International) | 1 |
| 22***54 | Film-Warning; (Universal, Read Omm, Intl) | 1 |
| 22***12 | Film; (Warning) (Jump Start) (On Outside Of Battery Compartment Door) | 1 |
Film Group (1694548 N/S)
| 13***76 | Film; (Warning) (Universal) (Lh Side Post Inside Cab) | 1 |
| 16***70 | Film; (No Step) | 2 |
| 16***48 | Plate & Film Group | 1 |
Film Group (2424934 N/S)
| 13***58 | Film; (Identification) (On Radiator Filler Cap) (On Near Of Radiator Filler Cap) | 1 |
| 15***64 | Film; (Instruction) (Hydraulic Oil) (On Forward Of And Above The Hydraulic Tank Sight Gage On Tank Surface) | 1 |
| 19***86 | Film; (Safety) (To Right And Left Of Fuel Tank) | 2 |
Film Group (1594551/S)
| 13***76 | Film; (Warning) (Universal) (Lh Side Post Inside Cab) | 1 |
| 16***51 | Plate & Film Group | 1 |
| 17***19 | Film; (Notice) (On Rh Side Below Top Of Fender On Angled Vertical Surface Near Front Edge) | 1 |
Steering And Braking System
Steering And Transmission Control Adjuster Group (1242354 N/S)-Part 2 Of 2
| 12***54 | Adjuster Group-Control; (Steering, Xmsn Control, Elect) | 1 |
Steering And Transmission Control Adjuster Group (1242354 N/S)-Part 1 Of 2
| 12***54 | Adjuster Group-Control; (Steering, Xmsn Control, Elect) | 1 |
Steering Brake Group (1950645 N/S)
| 17***34 | Clutch & Brake Group-Steering | 2 |
| 19***45 | Brake Group-Steering | 1 |
| 19***53 | Fastener Group-Engine; -Steering, Brake Control Valve | 1 |
Steering Clutch And Brake Group (1784434 N/S)-Part 1 Of 2
| 17***34 | Clutch & Brake Group-Steering | 1 |
Steering Clutch And Brake Group (1784434 N/S)-Part 2 Of 2
| 17***34 | Clutch & Brake Group-Steering | 1 |
Governor And Brake Control Group (2480760 N/S)-Part 1 Of 2
| 24***60 | Control Group-Governor & Brake | 1 |
Governor And Brake Control Group (2480760 N/S)-Part 2 Of 2
| 24***60 | Control Group-Governor & Brake | 1 |
Brake Control Group (1236446 N/S)
| 12***46 | Control Group-Parking Brake | 1 |
Steering And Transmission Control Group (2003166 N/S)-Part 1 Of 2
| 20***66 | Control Group-Steering & Xmsn | 1 |
Electronic Control And Mounting Group (1568955 N/S)
| 15***55 | Control Group-Steering & Xmsn | 1 |
Steering And Transmission Control Group (2003167 N/S)
| 20***67 | Control Group-Steering & Xmsn; (Adjustable) | 1 |
Steering And Transmission Control Group (2402570 N/S)-Part 2 Of 2
| 24***70 | Control Group-Steering & Xmsn | 1 |
Steering And Transmission Control Group (2003166 N/S)-Part 2 Of 2
| 20***66 | Control Group-Steering & Xmsn | 1 |
Steering And Transmission Control Group (2402570 N/S)-Part 1 Of 2
| 24***70 | Control Group-Steering & Xmsn | 1 |
Steering And Transmission Control Group (2402571 N/S)
| 24***71 | Control Group-Steering & Xmsn; (Adjustable) | 1 |
Fastener Group (1950653 N/S)
| 19***53 | Fastener Group-Engine; -Steering, Brake Control Valve | 1 |
1259664 Steering Gear Group
| 12***64 | Gear Group-Steering; -Steering Clutch, Brake, Rh | 1 |
1227372 Steering Gear Group
| 12***72 | Gear Group-Steering; -Steering Clutch, Brake, Lh | 1 |
2414168 Harness Assembly
| 24***68 | Harness Assembly; (Steering, Transmission) | 1 |
1986986 Harness Assembly
| 19***86 | Harness Assembly; (Steering, Transmission) | 1 |
Manifold Group (1754972 N/S)
| 17***72 | Manifold & Valve Group; -Steering Clutch, Brake, Rh, Lh | 1 |
Manifold Group (1646093 N/S)
| 16***93 | Manifold & Valve Group; -Steering Clutch, Brake, Rh, Lh | 1 |
Control And Mounting Group (2480770 N/S)-Pedal
| 24***70 | Pedal Group-Governor & Brake; (Pedal) | 1 |
Governor And Brake Control Group (1994801 N/S)-Part 1 Of 2
| 19***01 | Pedal Group-Governor & Brake | 1 |
Governor And Brake Control Group (1994801 N/S)-Part 2 Of 2
| 19***01 | Pedal Group-Governor & Brake | 1 |
Sprocket Segment Group (6i8078 N/S)
| 6I***78 | Segment Group-Sprocket | 1 |
1602443 Position Sensor Group
| 16***43 | Sensor Group-Position; -Brake Pedal | 1 |
2144862 Position Sensor Group
2144863 Position Sensor Group
| 21***63 | Sensor Group-Position; -Rotary-Tc Impeller Clutch, Lh Pedal | 1 |
Steering Clutch Input Shaft Group (1356161 N/S)
| 13***61 | Shaft Group-Steering Clutch Input | 1 |
2695771 Solenoid Valve Group
| 26***71 | Valve Group-Solenoid; (Power Train Oil Priority Valve) | 1 |
1744909 Solenoid Valve Group
| 17***09 | Valve Group-Solenoid; (Steering Clutch, Brake, Rh, Lh) | 1 |
1984607 Solenoid Valve Group
| 19***07 | Valve Group-Solenoid; (Power Train Oil Priority Valve) | 1 |
1722392 Solenoid Valve Group
| 17***92 | Valve Group-Solenoid; (Parking, Secondary Brake) | 1 |
Basic Valve Group (2017270 N/S)
| 20***70 | Valve Group-Steering & Brake Cont | 1 |
2017272 Valve Group-Unit Test-3
| 20***72 | Valve Group-Steering & Brake Cont | 1 |
Work Tools
Angling Blade Group (1127446 N/S)
| 11***46 | Blade Group-Angling; -Power Angle, Tilt Blade | 1 |
Angling Blade Group (1105230 N/S)
| 11***30 | Blade Group-Angling | 1 |
Straight Blade Group (1274116 N/S)
| 12***16 | Straight Blade Group | 1 |
Ripper Tooth Group (8j2189 N/S)
| 8J***89 | Tooth Group-Ripper; -Straight | 1 |
Ripper Tooth Group (1359795 N/S)-Curved
| 13***95 | Tooth Group-Ripper; -Curved | 1 |
| 9J***26 | Tooth Group-Ripper; -Curved | 3 |
Ripper Tooth Group (9j8926 N/S)
| 9J***26 | Tooth Group-Ripper; -Curved | 1 |
D6N serial number reference
On the Cat D6N, the Product Identification Number (PIN) plate is located at the rear of the machine, high on the end of the left-hand frame rail (per Caterpillar-dozer serial-number location guidance for this size class) -- it is often obscured by paint, dirt, or a rear ripper attachment and may need cleaning to read; Caterpillar also stamps a duplicate PIN into the frame steel itself as a backup. On machines from roughly the early-to-mid 2000s onward the PIN is a 17-character string, and the first three letters of that string are the model/serial-number prefix (e.g., DJA, GHS, PBA) while the remaining digits are the sequential unit number within that prefix block. Caterpillar assigns a new three-letter prefix roughly whenever a production run changes significantly (engine update, emissions tier, major spec change), so matching the PIN prefix against Caterpillar's official model-specific parts/service literature is the most reliable way to identify a given D6N's generation, engine and configuration. However, prefix groupings in parts catalogs can be misleading about engine generation (verification found PBA, assumed by the original researcher to be the newest C7.1-engined D6N, is actually documented on the earlier C6.6 engine) -- always cross-check the specific serial against current Cat documentation or a dealer rather than inferring engine/tier from prefix grouping or blade/steering-option similarity alone.
| Prefix | Identifies | Notes |
|---|---|---|
| DJA | D6N Medium Track-Type Tractor, XL or LGP undercarriage | D6N prefix groups: DJA, DJY, GHS, JAH, LJR, MLW, PBA, PER. Example: serial DJA00392 is a 2007 D6N XL. D6N production window roughly 2006-2009 with common scheduled-maintenance parts (filters, valve-lash interval, coolant capacity). Engine: Cat 3126B HEUI (7.2 L, net approx. 108 kW/145 hp, EU Stage II). Available in XL and LGP configurations with Differential Steering (tiller bar) or Finger Tip Control (clutch/brake) steering. Blades: VPAT on both XL and LGP, or Semi-Universal (SU) on XL only. Exact model-year boundaries within this prefix not documented by Cat—confirm specific build year/engine with dealer via PIN lookup. |
| DJY | D6N Medium Track-Type Tractor, XL or LGP undercarriage | Confirmed as a D6N prefix in Caterpillar's official D6N Dozer Parts Reference Guide. Unlike the researcher's original hedge, this prefix's engine is independently pinned down: Caterpillar parts/service-catalog data (mirrored on third-party serial/parts lookup sites) ties the DJY00001-and-up range specifically to the Cat C6.6 ACERT engine (Tier 4 Interim/EU Stage IIIB, net approx. 112 kW/150 hp), i.e. the generation after the 3126B-engine DJA prefix, not a range spanning both. XL and LGP undercarriage, VPAT blade (both) or SU blade (XL only), Differential Steering or Finger Tip Control. Precise model-year cutoff within this prefix is not documented beyond the engine tie; confirm with a dealer. |
| GHS | D6N Medium Track-Type Tractor, XL or LGP undercarriage | Confirmed as a D6N prefix via Caterpillar's official Parts Reference Guide and independently listed as a valid D6N branch in third-party mirrors of Caterpillar's online parts catalog (SIS). Grouped with DJA, JAH, LJR and MLW in roughly the same 2006-2009-era production window, sharing the same scheduled-maintenance parts. Because that window spans both the 3126B HEUI engine (confirmed for DJA) and the C6.6 ACERT engine (confirmed for DJY), GHS's specific engine cannot be pinned down from available sources and should not be assumed. XL/LGP undercarriage, VPAT blade (both) or SU blade (XL only), Differential Steering or Finger Tip Control. Confirm exact build year/engine with a dealer via PIN lookup. |
| JAH | D6N Medium Track-Type Tractor, XL or LGP undercarriage | D6N prefix group: DJA/GHS/JAH/LJR/MLW with identical filters and maintenance intervals in roughly the 2006-2009 window. This period spans changeover from Cat 3126B HEUI engine to Cat C6.6 ACERT engine; JAH's specific engine cannot be confirmed. XL and LGP undercarriage; VPAT (both) or SU (XL only) blades; Differential Steering or Finger Tip Control steering. Confirm exact year/engine per serial with Cat dealer. |
| LJR | D6N Medium Track-Type Tractor, XL or LGP undercarriage | Confirmed as a D6N prefix by Caterpillar's official Parts Reference Guide and independently listed in third-party mirrors of Caterpillar's parts catalog (SIS), which also place it in the same roughly 2006-2009 production window as DJA, GHS, JAH and MLW (identical filters, valve-lash and coolant-capacity intervals). This window spans both the 3126B HEUI and C6.6 ACERT engine generations, so LJR's specific engine is not independently confirmed. XL/LGP undercarriage, VPAT (both)/SU (XL only) blades, Differential Steering or Finger Tip Control. Confirm build year/engine with a dealer. |
| MLW | D6N Medium Track-Type Tractor, XL or LGP undercarriage | Confirmed as a D6N prefix by Caterpillar's official Parts Reference Guide, grouped with DJA, GHS, JAH and LJR sharing one common maintenance/filter specification in roughly the 2006-2009 window per third-party mirrors of Caterpillar's parts catalog (SIS). That window spans both the 3126B HEUI and C6.6 ACERT engine generations, so MLW's specific engine is not independently confirmed beyond the group tie. XL/LGP undercarriage, VPAT (both) or SU (XL only) blade, Differential Steering or Finger Tip Control. Confirm with a Cat dealer. |
| PBA | D6N Medium Track-Type Tractor, XL or LGP undercarriage | Confirmed as a D6N prefix by Caterpillar's official Parts Reference Guide, which places PBA in a service-parts set together with PER, separate from the DJA-cluster group. CORRECTED from the original submission: this is NOT confirmed as Caterpillar's current/latest D6N generation, and is NOT confirmed on the C7.1 ACERT Tier 4 Final engine. An independently documented real machine on this prefix -- a 2015 Caterpillar D6N LGP, serial CAT00D6NKPBA02794, listed for sale online -- is powered by the Cat C6.6 ACERT engine at net approx. 112 kW/150 hp, i.e. the same Tier 4 Interim/EU Stage IIIB engine family used on the DJY prefix, not the newer Tier 4 Final C7.1 ACERT (124 kW/166 hp). Treat PBA as a later production block still on the C6.6 engine (possibly a filter/spec update sharing parts with PER) rather than the newest D6N generation. XL and LGP undercarriage with Differential Steering; Finger Tip Control availability on this prefix is not independently confirmed. Exact prefix-to-model-year mapping and engine confirmation should be obtained from a Cat dealer via PIN lookup. |
| PER | D6N Medium Track-Type Tractor, XL or LGP undercarriage | Confirmed as a D6N prefix by Caterpillar's official Parts Reference Guide, grouped with PBA in the same service-parts set. CORRECTED from the original submission: sourcing found during verification (a single, lower-confidence secondary source) associates the PER00001-and-up range with the same Cat C6.6 ACERT engine family as PBA (Tier 4 Interim/EU Stage IIIB) rather than the C7.1 ACERT Tier 4 Final engine claimed originally; this is thinner evidence than for PBA and should be treated as unconfirmed pending a dealer check. Do not assume this is Caterpillar's newest/current D6N generation. XL/LGP undercarriage, Differential Steering. Confirm engine, model year and configuration with a Cat dealer via PIN lookup before relying on this for parts fit. |
Frequently asked questions
What engine does the Caterpillar D6N use?
It depends on series: the original D6N used a Cat 3126B DITAAC diesel rated near 108 kW (145 hp) net, the Tier 4 Interim/Stage IIIB generation switched to a Cat C6.6 ACERT rated near 150 hp net, and the final Tier 4 Final/Stage IV generation (including WH variants) uses a Cat C7.1 ACERT rated near 124 kW (166 hp) net with DPF and SCR aftertreatment.
What is the operating weight of the Caterpillar D6N?
Operating weight varies by configuration and series, roughly 15,400-18,350 kg (about 34,000-40,450 lb): lighter Std/XL builds sit toward the low end while LGP undercarriage and the later, heavier C7.1 Tier 4 Final configurations push toward the high end.
What replaced the Caterpillar D6N?
The D6N itself succeeded the D6M in Cat's mid-size dozer line, and when Caterpillar restructured its dozer model names around 2019 alongside the new D6/D6 XE, the D6N's power/weight class continued on as the D5.
What D6N owners discuss
What engine does the Caterpillar D6N actually use, and does it change across the production run?
Dealer literature and owner threads agree the D6N was built across at least three distinct engine/emissions packages tied to when the machine was built, so "D6N" alone does not tell you the engine family. The earliest Tier 2/3 D6N used the Cat 3126B, a turbocharged HEUI-injected inline-six flywheel-rated around 108 kW (145 hp) at 2200 rpm, with owners noting it lugs back to roughly 127 kW (170 hp) as rpm drops under load. Machines built to meet Tier 4 Interim/Stage IIIB emissions moved to the Cat C6.6 ACERT, a 6.6 L inline-six rated near 112 kW (150 hp) at 2000 rpm. The last D6N generation, built to Tier 4 Final/Stage IV, uses the larger Cat C7.1 ACERT (7.1 L) rated around 124 kW (166 hp), with a Clean Emissions Module adding a diesel particulate filter and SCR/DEF aftertreatment. Forum consensus is to confirm the actual engine family from the serial/engine plate before ordering filters, injectors, or troubleshooting a fault code, since the three engines are not interchangeable in service procedure.
What transmission and steering problems come up most often on the D6N, and are they serious?
The D6N runs a planetary powershift transmission behind a single-stage torque converter and torque divider, paired with differential steering (not the clutch-and-brake steering of older D6 variants) — that distinction matters because a lot of older D6-series steering-clutch advice online does not apply to the D6N. The most frequently repeated complaint on Heavy Equipment Forums involves transmission output speed sensor faults, commonly logged as codes in the 671-2/672-2/673-2 range, where the machine will suddenly refuse to move in one or both directions above roughly 1300 rpm and feel like the brakes are being applied; members note the codes can point to a genuinely bad sensor or to an intermittent wiring/connector fault rather than the sensor itself. A smaller number of threads describe broken disc springs and damaged first-gear clutch piston seals leading to pressure loss and poor first-gear engagement, which owners attribute partly to heat cycling. Because a sudden loss of drive or brake-like behavior while dozing on a grade is a genuine safety hazard, have your dealer verify the fault code, wiring harness, and clutch pressures with factory diagnostic software before returning the machine to service.
Why does a D6N blade or ripper sometimes drift down on its own, and what usually causes it?
Owners describe this as "cylinder creep" or blade drop — one commonly cited case dropped several centimeters over roughly 15 seconds sitting idle, and posters note it is not limited to a single machine. Community and hydraulics-forum consensus is that when a raised implement slowly settles, technicians instinctively blame the cylinder's piston seals and replace or reseal the cylinder, but that frequently does not fix it, because the more common culprit on this type of circuit is a counterbalance or main control valve check element sticking open from contamination, or on the D6N's resolver-controlled implement pump, a check ball in the resolver network not sealing so pump flow/pressure fails to build correctly. Diagnosis needs to isolate whether the drift is internal to the control valve/resolver circuit or the cylinder itself before parts are swapped. Because an unexpected blade or ripper drop is a crush/pinch hazard for anyone working near or under the implement, have your dealer verify the hydraulic diagnosis (valve vs. cylinder) with pressure and flow testing before relying on the machine around personnel.
How does the D6N's undercarriage hold up, and is the sealed SystemOne track worth it?
This is one of the more polarizing topics in D6N owner discussions. The SystemOne sealed-and-lubricated undercarriage was marketed to eliminate bushing wear and extend chain life as a system, and Cat undercarriage-assurance materials cite multi-thousand-hour coverage on components, with heavy-duty variants claiming meaningfully longer life in abrasive or rocky conditions — but that is largely dealer/manufacturer messaging. Independent forum posts are more mixed: several describe front idler mounting blocks breaking off on early SystemOne units, seals eventually failing and leaving the chain running dry, and packed dirt/rock between idlers and pins pulling tracks too tight, especially in rock or high-impact land-clearing work. Because aftermarket parts support for SystemOne is limited, some owners who were unhappy with wear or seal life converted back to a conventional (non-sealed) track configuration. Owners running the D6N in sandy/soil applications generally report satisfactory life from either configuration; the consensus is to match undercarriage type to your ground conditions rather than assume SystemOne is a universal upgrade.
What electrical or sensor problems show up repeatedly on the D6N?
The recurring theme across forum threads is intermittent connector corrosion rather than outright component failure. Multiple posters trace no-start, random shutdown, or fault-light complaints back to condensation, corrosion, or contamination ("green crusties") inside the main wiring harness connectors between the machine ECM and engine ECM, or at the ECM connectors themselves — the recommended fix is locating every major harness connector, opening and cleaning each with electrical contact cleaner, drying, and reassembling before condemning a sensor or ECM. One documented case found seat operator-presence-sensor wiring nearly severed and intermittently shorting inside the seat base. Other posts describe the machine losing power to everything (including the instrument cluster) that was traced to the battery disconnect switch rather than the ECM. Because an unexpected engine shutdown or false safety-interlock fault while the machine is on a slope or near other equipment carries real risk, have your dealer verify ECM fault codes and harness continuity with factory diagnostic software rather than assuming a sensor swap will fix an intermittent electrical fault.
Do the D6N's Tier 4 engines have known quirks specific to their series?
Yes, and the quirks differ by which engine your D6N carries. Owners and engine-focused write-ups on the Tier 4 Interim-era Cat C6.6 ACERT most often cite HEUI injector wear leading to leakage, rough idling, or power loss over time, along with turbocharger-related power loss and a tendency toward overheating if coolant level or the cooling system is not kept up; several posts also note oil leaks as a common complaint on higher-hour units. The later Tier 4 Final Cat C7.1 ACERT trades those issues for emissions-aftertreatment complexity: it runs a Diesel Oxidation Catalyst and Diesel Particulate Filter plus SCR using diesel exhaust fluid, with passive regeneration designed to run transparently in the background under normal load — but posts describing EGR-equipped Cat engines generally note that EGR can introduce carbon/soot buildup in the intake over time, reducing power and requiring extra intake maintenance if duty cycles run consistently light. In short: earlier C6.6 machines are more prone to fuel-system/injector wear, later C7.1 machines shift the maintenance burden to the emissions aftertreatment (DPF soot loading, DEF consumption, and regeneration behavior).
What should I check before buying a used D6N?
Forum and dealer-inspection guidance converges on the same priority order. Undercarriage first: have the wear measured across the chain (pins, bushings, links, rails, sprockets) against dealer wear charts rather than eyeballing it, since a full undercarriage replacement is a major expense — also check rollers for damage or loose mounting, confirm the final drive has no leaks, and look for broken sprocket teeth or bent/missing shoes; on SystemOne-equipped machines specifically check idler seals and mounting blocks for the failure patterns described above. Second, inspect the blade, push arms, and ripper mounts for welds or reinforcement plating that suggest prior structural repair, and check blade/ripper edge wear for evenness (uneven wear points to alignment issues or hard use). Third, run the engine and confirm it idles steadily, holds temperature under load, and responds smoothly to throttle without unusual noise; cycle the blade and ripper repeatedly and watch for slowing response, which suggests pump wear or the internal valve leakage described in the blade-drop question above. Finally, review maintenance records and oil condition/color, and run the machine under load for an extended test (30+ minutes is a commonly cited minimum) to see if temperatures or hydraulic pressures drift out of range. Because verifying true undercarriage and hydraulic condition benefits from a wear gauge and pressure gauges most buyers do not carry, have your dealer or an independent heavy-equipment technician perform a pre-purchase inspection before finalizing a used D6N purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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