Caterpillar D3C III
Caterpillartrack-type tractor

Caterpillar D3C III

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar D3C III is the third-generation, small/compact-class track-type tractor in the D3C line, built through the 1990s into the early 2000s. Every arrangement - Standard, XL, and LGP (Low Ground Pressure) - runs the same Cat 3046, a naturally aspirated 6-cylinder diesel of 5.0 L (305 cu in) displacement, rated 78 hp (58 kW) gross and 70-71 hp (52-53 kW) net at 2400 rpm. Caterpillar offered two distinct drivetrains on this generation: a dual-path, closed-loop Hystat (hydrostatic) system with single-lever joystick steering, and a torque-converter powershift with clutch/brake steering via foot pedals. Operating weight runs from roughly 7,040 kg (15,500 lb) on a Standard clutch/brake machine up to about 7,710 kg (17,000 lb) on an LGP Hystat machine, depending on configuration. Every arrangement carries the same VPAT (Variable Pitch, Angle and Tilt) blade - Caterpillar never offered a straight, semi-U, or angle-only blade on this model. The D3C III succeeded the D3C II and was replaced by the D3G starting in 2001.

Compared with the D3C II, the Series III update carried the 3046 engine and one-piece mainframe/track-roller-frame chassis forward largely unchanged while refining the drivetrain controls: the Hystat option's single-joystick direction/speed/steering interface and the powershift's oil-cooled multiple-disc steering clutches with double-wrapped brake bands both belong to this generation. Because Standard, XL, and LGP share one VPAT blade and much of the power-train hardware, parts commonality runs high across the D3C III range, though final-drive, undercarriage, and drivetrain components still split by configuration and by Hystat versus powershift. As a late, mechanically simple entry in a long-running small-dozer family, with no electronic engine controls and no aftertreatment, the D3C III stays a common shop, landscaping, and utility-grade machine on the used market, with owners running it well past factory-book hours on routine undercarriage, final-drive, and drivetrain rebuilds rather than replacing the whole machine. Its successor, the D3G, moved to a different engine platform, which keeps demand alive for the 3046's simpler parts and service base among owners keeping D3C IIIs working.

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 D3C III specifications

Engine

Engine modelCat 3046, four-stroke, in-line 6-cylinder diesel, naturally aspirated. Same base engine used across Standard, XL and LGP arrangements and both power train options offered on this model.
Gross power58.2 kW (78 hp) at 2400 rpm
Net power52.9 kW (71 hp) at 2400 rpm per Caterpillar, ISO 9249 and EEC 80/1269 ratings; 52.2 kW (70 hp) per SAE J1349; 54.4 kW (73 hp / 74 PS) per DIN 70020
Bore and stroke94 mm x 120 mm (3.7 in x 4.7 in)
Displacement5.0 L (305 cu in)
Torque rise35% at 1400 rpm, per factory torque curve
Altitude capabilityNo derating required up to 2300 m (7500 ft)
Fuel systemDirect injection with adjustment-free individual injection pumps and valves, electric fuel shutoff solenoid, in-cylinder glow plugs with built-in temperature switch for cold starting
Electrical system12V system. 55-amp alternator standard with ROPS canopy, 90-amp standard with optional cab. 12V, 900 CCA, group 31, maintenance-free battery with disconnect switch
Cooling system hardwareBelt-driven water pump, multi-plate water-cooled oil cooler, conventional core radiator with 533 mm (21 in) fan
Starter12V direct-electric, gear reduction starter with terminal shielding

Weights

Standard arrangement, clutch/brake power train7039 kg (15,518 lb) operating weight
Standard arrangement, Hystat power train7112 kg (15,680 lb) operating weight
XL arrangement, clutch/brake power train7231 kg (15,941 lb) operating weight
XL arrangement, Hystat power train7304 kg (16,103 lb) operating weight
LGP arrangement, clutch/brake power train7640 kg (16,842 lb) operating weight
LGP arrangement, Hystat power train7713 kg (17,004 lb) operating weight
Weight basisOperating weight is approximate: dozer blade, canopy ROPS, back-up alarm, operator, coolant, lubricants and a full fuel tank included
Cab option weight addFitting a ROPS cab in place of the open canopy adds about 204 kg (450 lb) to operating weight
Ripper option weight addA rear-mounted ripper with three teeth and its hydraulic cylinder adds about 249 kg (549 lb)

Dimensions

Track gauge, Standard (Hystat) and XL1448 mm (57 in)
Track gauge, Standard clutch/brake1422 mm (56 in), narrower than the Standard Hystat arrangement
Track gauge, LGP1676 mm (66 in)
Width over tracks, no blade, Standard (Hystat) and XL1854 mm (73 in)
Width over tracks, no blade, Standard clutch/brake1829 mm (72 in)
Width over tracks, no blade, LGP2311 mm (91 in)
Overall length with blade, Standard (Hystat) and XL3982 mm (156.8 in)
Overall length with blade, Standard clutch/brake3859 mm (151.9 in)
Overall length with blade, LGP3954 mm (155.7 in)
Length of basic tractor without blade, Standard (Hystat), XL and LGP2957 mm (116.4 in)
Length of basic tractor without blade, Standard clutch/brake2934 mm (115.5 in)
Tractor height (to top of exhaust stack), Standard (Hystat), XL and LGP2728 mm (107.4 in); overall stack height about 2795 mm (110 in)
Tractor height, Standard clutch/brake2675 mm (105.3 in)
Ground clearance, Standard (Hystat), XL and LGP374 mm (14.7 in)
Ground clearance, Standard clutch/brake322 mm (12.7 in)
Undercarriage shoe width, Standard and XL406 mm (16 in)
Undercarriage shoe width, LGP635 mm (25 in), standard; a self-cleaning 635 mm (25 in) shoe is also offered as an option for LGP
Length of track on ground, Standard1899 mm (74.8 in)
Length of track on ground, XL and LGP2055 mm (80.9 in)
Ground contact areaStandard 15,420 cm2 (2390 in2); XL 16,690 cm2 (2586 in2); LGP 26,100 cm2 (4045 in2)
Track rollers per side5 on Standard, 6 on XL and LGP
Track shoes per side37 on Standard, 39 on XL and LGP
Grouser height47 mm (1.9 in), single-grouser shoe

Performance

Hystat travel speedInfinitely variable, 0 to 9.0 km/h (5.6 mph), forward or reverse, via dual-path closed-loop hydrostatic drive
Powershift forward speeds (clutch/brake, 3-speed planetary auto shift)1st 3.1 km/h (1.9 mph); 2nd 5.9 km/h (3.7 mph); 3rd 10.8 km/h (6.7 mph)
Powershift reverse speeds1st 3.2 km/h (2.0 mph); 2nd 6.3 km/h (3.9 mph); 3rd 11.4 km/h (7.1 mph)
Ground pressure, Standard arrangement44.7 kPa (6.49 psi) clutch/brake; 45.2 kPa (6.56 psi) Hystat
Ground pressure, XL arrangement42.5 kPa (6.16 psi) clutch/brake; 42.9 kPa (6.23 psi) Hystat
Ground pressure, LGP arrangement28.7 kPa (4.16 psi) clutch/brake; 29.0 kPa (4.20 psi) Hystat
Drawbar pullPublished only as a speed-versus-pull curve, not a single fixed rating. On the clutch/brake power train, torque-converter multiplication gives the highest pull in first gear near stall, tapering off through the gears as travel speed rises toward the 10.8-11.4 km/h (6.7-7.1 mph) top speed. On the Hystat power train, pull is highest at minimum travel speed and tapers toward the 9.0 km/h (5.6 mph) top speed. Consult the factory performance curve for the exact figure at a given speed; do not treat this as a single number.
GradeabilityNot published as a discrete percentage for this model. Climbing/pulling performance is expressed only through the drawbar-pull-versus-speed curve rather than a stated maximum grade.
Hydraulic pump flow66.6 L/min (17.6 gpm) at 2400 rpm and 6895 kPa (1000 psi) pump outlet pressure
Hydraulic relief valve setting17,241 kPa (2500 psi)
Hystat charge-circuit relief valve setting42,000 kPa / 420 bar (6100 psi)
Steering, HystatSingle-lever hydrostatic steering, full power to both tracks maintained through any turn, dynamic hydrostatic braking through the drive system
Steering, clutch/brakeTwo-pedal steering standard, oil-cooled multiple-disc clutches with double-wrapped brake bands; optional dash-mounted dual hand-lever steering

Blades

Blade design offeredVariable Pitch, Power Angle and Tilt (VPAT) blade, standard on every D3C Series III / Series III Hystat arrangement. Factory literature for this model lists only the VPAT blade; no separate straight (S), semi-U (SU) or angle-only (A) blade is offered for the D3C III.
Blade capacity, Standard and XL1.26 m3 (1.64 yd3), SAE rated
Blade capacity, LGP1.31 m3 (1.70 yd3), SAE rated. Standard and XL arrangements carry 1.64 yd3; LGP is the only arrangement rated at 1.70 yd3.
Blade width, Standard and XL2547 mm (100.3 in)
Blade width, LGP3194 mm (125.8 in)
Blade height, Standard and XL836 mm (32.9 in)
Blade height, LGP746 mm (29.4 in)
Blade lift height761 mm (30.0 in) on Standard Hystat, XL and LGP; 773 mm (30.4 in) on the Standard clutch/brake arrangement
Digging depth, Standard Hystat and XL418 mm (16.5 in)
Digging depth, Standard clutch/brake410 mm (16.2 in)
Digging depth, LGP398 mm (15.7 in)
Cutting edge pitch, adjustable50 to 55 degrees via the adjustable top pitch link. Carry position (50 deg) for moving soft material, penetrating position (55 deg) for tough, tight soil
Maximum blade angle, either side25 degrees, all arrangements
Maximum tilt, Standard and XL356 mm (14.0 in)
Maximum tilt, LGP490 mm (19.3 in)
Blade width at maximum angle, Standard and XL2308 mm (90.9 in)
Blade width at maximum angle, LGP2901 mm (114.2 in)

Service capacities summary

Fuel tank, Standard clutch/brake122 L (32.2 gal)
Fuel tank, XL and LGP clutch/brake, and all Hystat arrangements165 L (43.6 gal)
Engine crankcase and filter13 L (3.4 gal), all arrangements
Cooling system21 L (5.5 gal), all arrangements
Hydraulic tank56.8 L (15 gal), all arrangements
Powershift transmission oil, clutch/brake only28.2 L (7.5 gal)
Bevel gear case, clutch/brake only15.1 L (4 gal)
Steering brake/clutch, each side, clutch/brake only28.4 L (7.5 gal)
Final drives, Standard and XL, each side8 L (2.1 gal) clutch/brake; 13.8 L (3.6 gal) Hystat
Final drives, LGP, each side12 L (3.1 gal) clutch/brake; 20.5 L (5.4 gal) Hystat
Engine oil specificationEngine service classification CC, CC/SF or CD, or an equivalent heavy-duty diesel engine oil carrying antiwear, antifoam, antirust and antioxidation additives
Grease specificationMultipurpose-type grease with 3-5% molybdenum disulfide; NLGI No. 2 for most temperatures, NLGI No. 1 or No. 0 for extreme cold

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

D3C III fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)13 L (3.4 US gal), Cat 3046 6-cylinder dieselCat DEO diesel engine oil, meets API CF-4/CH-4 or later (Cat ECF-1/ECF-2). SAE 10W-30 for roughly -18°C to 40°C (0°F to 104°F); SAE 15W-40 above about -9°C (15°F); straight SAE 30 acceptable in stable warm climates.
Cooling system21 L (5.5 US gal)Cat conventional antifreeze/coolant (DEAC-type, full-strength, meets Cat EC-1) dosed with supplemental coolant additive on the service interval. Machines built to later printings of the manual accept Cat ELC extended-life coolant instead — do not mix coolant types.
Fuel tank122 L (32.2 US gal) on standard-undercarriage machines; 165 L (43.6 US gal) on XL, LGP, and Hystat-drive machinesNo. 2-D diesel fuel.
Transmission / power trainClutch/brake (power-shift) configuration: 3-speed planetary power-shift transmission 28.2 L (7.5 US gal); bevel gear case 15.1 L (4 US gal); steering clutch/brake compartment 28.4 L (7.5 US gal) per side, filled and checked separately. Hystat (hydrostatic) configuration has no separate transmission, bevel-gear, or steering-clutch compartment — the power train oil is combined with the implement hydraulic oil in one reservoir, listed under hydraulic system below.Cat TDTO transmission/drive-train oil, meets Cat TO-4/TO-4M. SAE 30 for warm climates, SAE 10W for cold climates, or a multigrade TDTO blend where seasonal temperature swings are wide.
Final drives (each side)Clutch/brake configuration: 8 L (2.1 US gal) per side on standard and XL undercarriage, 12 L (3.1 US gal) per side on LGP. Hystat configuration: 13.8 L (3.6 US gal) per side on standard and XL, 20.5 L (5.4 US gal) per side on LGP. Some public spec sheets show a single ~9.5-9.8 L figure that does not cleanly match either build — treat that as unverified and check the machine's own build plate/configuration.Cat TDTO, meets Cat TO-4/TO-4M.
Hydraulic system / tank56.8 L (15 US gal), same nominal reservoir size on both drivetrain configurations. On Hystat machines this reservoir is shared with the power train — a combined power-train-and-implement oil system with matched vertically mounted spin-on filters and an air-to-oil cooler.Cat TDTO, meets Cat TO-4/TO-4M (the same spec covers Cat hydrostatic transmissions, hydraulics, and wet brakes).
Pivot shaft / pivot pinsNo separate oil-fill compartment. C-frame pivot bearings and bulldozer/blade pivot pins are grease-lubricated through remote zerk fittings, not filled with gear oil.Cat Multipurpose Grease (MPGM) — see grease row.
GreaseApplied through zerk fittings at C-frame pivot bearings, blade/bulldozer pivot pins, and other chassis grease points. Track rollers and idlers are sealed and lubricated for life and take no service grease.Cat Multipurpose Grease (MPGM), NLGI 2 for normal ambient temperatures; NLGI 1 or 0 for extreme cold. If MPGM is unavailable, a multipurpose grease containing 3-5% molybdenum disulfide is an acceptable substitute.

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Caterpillar D3C III maintenance schedule

Service intervalTasks
Every 50 h
  • Check engine oil level, coolant level, and fuel level before starting; walk around for leaks at the engine, final drives, and Hystat or transmission compartment.
  • Drain water and sediment from the fuel tank sump.
  • Check track sag on both sides; add grease at the track-adjuster fitting near the recoil/relief valve if slack is excessive.
  • Grease C-frame pivot bearings and VPAT blade pivot pins at the zerk fittings.
  • Inspect seat belt, back-up alarm, lights, and ROPS or canopy mounting for damage.
  • Check the air-cleaner restriction indicator and clean debris from the radiator core.
Every 250 h
  • Change engine oil and filter on the Cat 3046.
  • Pull an engine oil sample at the sampling valve for S·O·S analysis.
  • Check final drive oil level on both sides and top off as needed.
  • Inspect the fan/alternator belt for cracking or glazing and check tension.
  • Inspect the track roller frame and mainframe for cracks on both sides.
  • On powershift units check steering clutch and brake adjustment; on Hystat units check charge pressure and case-drain condition.
Every 500 h
  • Replace the primary and secondary fuel filters and check the fuel tank cap and breather.
  • Replace the hydraulic system return filter (shared power-train/implement filter on Hystat units).
  • Sample and trend powershift transmission oil or Hystat drive oil condition.
  • Check coolant condition and corrosion-inhibitor concentration; add supplemental coolant additive on schedule.
  • Check battery condition, terminals, and electrolyte level.
  • Inspect VPAT blade lift, tilt, and angle cylinders for rod wear or leaks.
Every 1,000 h
  • Change final drive oil on both sides.
  • Change powershift transmission and bevel gear oil, or Hystat drive-system oil, per drivetrain fitted.
  • Change the hydraulic tank oil filter and inspect the tank breather.
  • Check and re-torque undercarriage hardware: track shoe bolts, roller-frame bolts, and sprocket segment bolts.
  • Check steering clutch/brake linkage travel and adjust to spec on powershift units.
  • Have the starter and alternator inspected and terminals cleaned.
Every 2,000 h
  • Change engine coolant and flush the cooling system; renew corrosion inhibitor.
  • Check and adjust engine valve lash on the Cat 3046.
  • Change hydraulic or Hystat system oil, full drain and refill.
  • Measure undercarriage wear (chain pitch and pin stretch, sprocket and roller-flange condition) over several links to gauge remaining life.
  • Inspect the VPAT C-frame ball-and-socket joint and pivot bushings for wear.
  • Pressure-test the steering clutch/brake circuit on powershift units, or the charge and relief circuits on Hystat units.
Every 4,500 h
  • Measure undercarriage wear against factory wear-limit charts and plan chain, roller, and sprocket replacement before through-hardening is worn away.
  • Evaluate Hystat pump/motor charge pressure and displacement performance, or powershift steering-clutch pack wear, against factory spec.
  • Inspect the VPAT C-frame ball-and-socket joint and lift-arm bushings for play and rebuild as needed.
  • Review engine oil-analysis trend and schedule a top-end inspection (injectors, valve train, cylinder liners) if wear indicators are climbing.
Every 6,000 h
  • Plan an in-frame or full overhaul of the Cat 3046 based on compression, blow-by, and oil-analysis trends rather than a fixed hour count.
  • Rebuild or replace final drive planetary gear sets and bearings at wear limits, both sides.
  • Replace undercarriage as a matched set (chain, rollers, idlers, sprockets) once measured wear reaches replacement limits.
  • Overhaul Hystat pump/motor assemblies or replace powershift steering-clutch and brake packs at major rebuild.

Servicing the D3C III beyond the schedule

Predictive Maintenance and Fluid Analysis

Run S·O·S oil sampling on the Cat 3046 engine at every interval, plus final-drive and drivetrain oil on both Hystat and powershift versions - this mechanical NA engine gives few other early-warning signs of wear. Track coolant condition and corrosion-inhibitor level to protect the wet-liner block. On Hystat machines, trend charge pressure and watch for metal in the case drain, the first sign of pump or motor wear. On powershift machines, trend steering-clutch and brake oil condition. Measure chain-pitch stretch on a set schedule to catch undercarriage replacement timing early.

Corrective and Common Repairs

Typical D3C III repairs center on the undercarriage: stretched chain, worn pins and bushings, and sprocket wear from ground-engaging duty in any Standard, XL, or LGP configuration. Hystat machines commonly need pump or motor seal attention and periodic track-tension grease-point service; powershift machines see steering-clutch and brake-band wear from repeated turning, often traced to a clogged suction screen loaded with clutch-lining debris. VPAT blade cylinders and C-frame ball-and-socket joints wear from constant grading load. Gauge faults usually trace to the sender, not the engine.

Overhaul and Rebuild Points

Plan an in-frame overhaul of the Cat 3046 around compression loss, blow-by, and oil-analysis trend rather than a fixed hour number - this naturally aspirated six has no turbocharger to inspect but benefits from valve-lash and injector checks at major service. Final drives, double-reduction planetary units on both sides, and the undercarriage wear as a set and are usually rebuilt together once chain-stretch reaches its limit. Hystat pump/motor assemblies or powershift steering-clutch and brake packs are the other major rebuild point.

Seasonal and Environment Servicing

Before cold weather, verify glow-plug and battery condition - the 3046's mechanical fuel system relies on in-cylinder glow plugs, not electronic strategies, for cold starts, and some early panels use direct-reading gauges rather than electric senders. Check coolant concentration for expected low temperatures and confirm cab or canopy seals and guarding are intact. In hot, dusty, or forestry work, clean the radiator core and air-filter element more often, and watch Hystat oil temperature since sustained heat stresses the closed-loop circuit.

D3C III common service parts

Part numberPart
094-7998Head, Fuel FilterCheck fitment →
096-9013Gasket, Fuel FilterCheck fitment →
118-5768Filter Element-FuelCheck fitment →
4N-0313Filter Element As-AirCheck fitment →
4N-0326Filter Element As-AirCheck fitment →

Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.

D3C III fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
Coolant Temperature gauge needle in red zone / high-temperature warning lampEngine coolant temperature has risen above the normal operating range.Low coolant level, plugged radiator core or screen, slipping or broken fan belt, a stuck thermostat, or a failed radiator cap.Bring the machine to a safe stop, let it idle down or cool, then check coolant level and radiator core/fins before inspecting the belt and thermostat.
Engine Oil Pressure gauge - low readingEngine oil pressure has dropped below the safe operating range.Low engine oil level, a worn oil pump, a plugged oil filter, worn bearings, or a faulty pressure line/gauge on this mechanically-read gauge.Shut the engine down right away, check oil level and look for external leaks, then check the pressure sending line before restarting.
Alternator (battery-shaped) charging-system warning lampCharging system output is below normal and the battery is not being kept charged.A loose or worn alternator drive belt, corroded or loose wiring connections, a failed voltage regulator, or a failed alternator.Check belt tension and wiring connections first, then bench-test or verify alternator output before replacing the unit.
Power Train (transmission) oil filter bypass indicatorPower train oil is bypassing the filter element unfiltered.Cold, thick oil that has not reached operating temperature yet (clears on its own), or a genuinely clogged/degraded filter element.Let the machine warm to normal operating temperature before judging the light; if it stays on, replace the power train filter and check oil condition.
Transmission/Torque Converter oil temperature gauge - highPower train oil temperature has gone above the normal operating range.Low power train oil level, a plugged oil cooler, sustained lugging or overload of the machine, or a failing torque converter.Reduce load, let the machine idle to cool, then check oil level and inspect the cooler for debris or restriction.
Air Cleaner restriction indicatorIntake air restriction has exceeded the allowable limit for the naturally aspirated engine.A clogged primary or secondary air filter element, or a collapsed/leaking intake hose or seal.Service or replace the air filter element and inspect intake ducting and clamps for damage or leaks.

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

D3C III attachments & work tools

Blades

VPAT (Variable Pitch, Power Angle and Tilt) is the sole factory blade for the D3C III — there is no separate S, SU, or A blade choice like on larger Cat dozers. Capacity and width track the undercarriage arrangement: Standard and XL carry a 1.26 m³ (1.64 yd³) blade, 2547 mm (100.3 in) wide and 836 mm (32.9 in) tall; LGP carries a wider, shallower 1.31 m³ (1.70 yd³) blade, 3194 mm (125.8 in) wide and 746 mm (29.4 in) tall. Angle runs to 25 degrees either side, tilt reaches 356 mm (14.0 in) on Standard/XL or 490 mm (19.3 in) on LGP, and cutting-edge pitch adjusts from 50 to 55 degrees via the top pitch link.

Rippers

The ripper is a dealer-installed option, not standard equipment: a hydraulically actuated multi-shank frame on a single cylinder, offered with a starter set of teeth and extra teeth sold separately. Fitting it requires stepping up from the standard three-valve blade-only hydraulics to the optional four-valve arrangement, since the ripper gets its own raise/hold/lower control position. This is a light-duty parallelogram-style ripper scaled to the D3's roughly 7-7.7 t operating class, not the heavier single-shank rippers used on the larger Cat dozer lines.

Winches

No powered attachment winch is listed in the D3C Series III factory optional-equipment schedule; standard equipment is limited to a front pull hook and a rear retrieval hitch for towing and self-recovery. Some current Cat product pages surface a larger retrieval winch alongside D3C listings, but its rating looks out of scale for this machine and reads more like generic cross-sell content than a documented D3C III option — confirm actual winch fitment and rating with a dealer rather than assuming factory support.

Drawbars/counterweights

Two counterweight options are cataloged: a front-mounted counterweight around 367 kg (810 lb) and a lighter idler-mounted counterweight around 136 kg (300 lb), both meant to rebalance the machine when running a ripper or other rear-heavy tool. A rear retrieval hitch is standard equipment and serves as the drawbar/pull point for towing; there is no separate heavy drawbar attachment beyond this hitch.

Cab/ROPS guarding for forestry/waste

Base protection is a ROPS canopy (required in the U.S.) meeting SAE J1040/ISO 3471 rollover criteria and SAE J395a/J231/ISO 3449 falling-object criteria, plus standard fold-down vandalism guarding over the dash. Forestry and debris-heavy configurations add optional rear screens (sized differently for canopy versus cab, and again for cab with or without air conditioning), side screens, and logging sweeps to deflect brush and limbs around the rear of the machine. Idler rock guards (offered in versions for use with or without the counterweight) and heavy-duty bottom guards round out the abrasive/rocky-site protection, on top of the recoil and track-guiding guards that are standard across all arrangements.

Hydraulic arrangement notes for front/rear tools

Base hydraulics are a three-valve circuit dedicated to the blade (lift, angle, tilt), fed by a single gear pump off the engine timing train delivering roughly 66.6 L/min (17.6 gpm) at 2400 rpm with a 17,241 kPa (2500 psi) relief setting, all run through one single-lever dozer control. Adding a rear tool such as the ripper means moving to the optional four-valve arrangement, which adds a dedicated raise/hold/lower circuit for the rear tool while the blade stays on the same single lever. Factory literature ties this four-valve option directly to the ripper, confirming the ripper as the intended rear-mounted tool for the extra valve section; a rear power takeoff drive is also separately optional but runs off its own drive, not the implement hydraulics.

All D3C III assemblies by section

Every catalogued assembly group for the Caterpillar D3C III. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
6i-3760 Air Cleaner Gp
0A***26Fitting1
10***24Seal1
12***84Air Cleaner Group1
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125-1184 Air Cleaner Gp
12***84Air Cleaner Group1
4N***89Cover As-Air Cleaner1
4N***13Filter Element As-Air; (Secondary)(Air Cleaner)1
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135-0401 Extension Gp-Exhaust
13***97Pipe-Extension1
13***01Extension Group-Exhaust1
5A***99Clamp1
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121-6800 Extension Gp-Exhaust
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)1
12***00Extension Group-Exhaust1
12***73Pipe-Extension1
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106-8270 Manifold Gp-Exhaust
10***70Manifold Group-Exhaust; (Exhaust)1
10***08Manifold-Exhaust1
10***09Gasket1
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6i-3823 Muffler Gp
10***64Gasket1
10***53Elbow1
10***60Manifold-Inlet1
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121-6801 Muffler Gp
10***54Gasket-Exhaust1
10***85Elbow-Exhaust1
11***51Spacer; (10.5x18x53.5-mm Thk)1
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Basic Engine
106-8228 Camshaft Gp
09***28Key1
10***28Camshaft Group1
10***69Camshaft As1
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106-8248 Cover Gp-Valve Mechanism
10***48Cover Group-Valve Mechanism1
10***69Gasket; (Valve Cover)1
11***75Cap; (Oil Fill)1
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106-8231 Crankshaft Gp
08***13Pin1
09***28Key1
10***88Plate-Thrust; (Standard)3
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201-1037 Cylinder Block As
09***41Cap9
09***20Pin2
10***62Bushing1
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106-8230 Cylinder Block Gp
10***79Seal-Side2
10***30Cylinder Block Group1
12***11Kit-Jacket Water Heater1
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106-8249 Cylinder Head Gp
09***35Plug-Drain2
10***82Spring12
10***10Cap-Sealing12
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116-6714 Flywheel Gp
11***14Flywheel Group1
12***98Flywheel As1
14***16Bolt; (M12x1.25x40-mm)6
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106-8250 Gear Gp-Front
10***90Bolt (16mm Long)1
10***01Bushing1
10***50Gear Group-Front1
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116-6717 Housing Gp-Flywheel
09***24Stud3
10***80Gasket-Rear1
10***99Bolt (30mm Long)2
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106-8252 Housing Gp-Front
09***29Seal-O-Ring (Id=139.5mm); (Id=139.50mm)1
10***77Gasket-Front Plate1
10***71Cover-Timing1
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106-8236 Lifting Gp-Engine
10***36Lifting Group-Engine; (Engine)1
23***94Gasket1
23***87Eye-Lifting; (Front Head)1
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106-8258 Pan Gp-Oil
10***81Gasket1
10***58Pan Group-Oil1
10***05Pan-Oil1
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106-8260 Piston & Rod Gp
10***57Ring Set(Standard)6
10***58Set-Piston Ring; (0.25-mm Os)6
10***59Set-Piston Ring; (0.50-mm Os)6
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128-2948 Piston & Rod Gp
10***57Ring Set(Standard)6
10***80Rod As-Connecting6
10***83Bearing-Connecting Rod12
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128-3439 Power Take-Off Ar
11***35Pump Group-Piston1
12***38Drive Group-Power Take-Off1
12***39Power Take-Off Ar1
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106-8251 Pulley Gp-Crankshaft
09***28Key1
10***51Pulley Group-Crankshaft1
10***68Pulley1
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106-8253 Pulley Gp-Fan
10***53Pulley Group-Fan1
10***37Pulley1
11***75V-Belt Set; (Alternator)1
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148-8219 Pulley Gp-Fan Drive
14***19Pulley Group-Fan Drive1
15***61Pulley1
5L***95V-Belt Set; -Includes 2-Belts, Fan Drive1
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115-5831 Support Gp-Engine & Xmsn
10***54Support As; (Rh)1
11***50Support As; (Lh)1
11***31Support Group-Engine & Xmsn1
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5l-4995 V-Belt Set -Includes 2-Belts, Fan Drive
5L***95V-Belt Set; -Includes 2-Belts, Fan Drive1
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106-8238 Valve Mechanism Gp
10***65Plug-Rocker Arm Shaft2
10***67Bracket-Rocker Arm Shaft6
10***68Bolt-Rocker Bracket6
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Cooling System
106-8262 Cooler Gp-Engine Oil
10***62Cooler Group-Engine Oil; (Engine Oil)1
10***67Cooler-Oil; (Engine)1
19***89Gasket1
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100-8308 Fan Gp-Blower
10***67Spider As-Fan; (Blower, 6 Blades)1
10***69Guard As-Fan2
10***08Fan Group-Blower1
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143-9353 Fan Gp-Suction
13***87Spider As-Fan; (Fan, Suction)1
14***53Fan Group-Suction1
7X***39Bolt; (M8x1.25x110-mm)4
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106-8264 Lines Gp-Water
09***69Cover-Thermostat1
10***04Gasket; (Thermostat)1
10***64Lines Group-Water1
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116-6725 Lines Gp-Water
09***69Cover-Thermostat1
10***04Gasket; (Thermostat)1
11***50Gasket1
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116-6724 Pump Gp-Water
11***24Pump Group-Water; (Water)1
11***32Gasket-Water Pump1
11***33Pump As-Water1
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106-8263 Pump Gp-Water
10***47Cover-Pump1
10***63Pump Group-Water1
10***73Pump As-Water1
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148-5174 Radiator Gp
11***77Hose-Radiator; (Upper)1
11***30Hose-Radiator; (Lower)1
11***62Core As-Oil Cooler; (Hydraulic Fan)1
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115-5833 Radiator Gp
11***33Radiator Group1
11***77Hose-Radiator; (Upper)1
11***30Hose-Radiator; (Lower)1
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139-6887 Radiator Gp
13***87Radiator Group1
8N***46Neck-Filler1
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Electrical And Starting System
123-6449 Alarm Gp
11***10Gasket-Screen; (Hydraulic Tank)1
11***11Cover1
12***49Alarm Group1
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148-8218 Alternator Gp-Charging
11***58Pulley-Alternator1
11***59Frame As-Alternator1
11***60Rotor As-Alternator1
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105-2811 Alternator Gp-Charging
10***11Alternator Group-Charging1
10***14Alternator Group-Charging1
13***77Strap As1
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103-6281 Alternator Gp-Charging
10***81Alternator Group-Charging1
10***11Alternator Group-Charging1
13***77Strap As1
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105-2814 Alternator Gp-Charging
10***14Alternator Group-Charging1
11***64Pulley-Alternator1
11***65Frame As-Alternator1
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103-6280 Alternator Gp-Charging -12 Volt, 55 Ampere
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***80Alternator Group-Charging; -12 Volt, 55 Ampere1
18***35Pin-Connector; (16-Ga To 18-Ga)2
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113-8337 Battery & Wiring Gp
09***35Spacer; (11x25x20-mm Thk)3
10***01Kit; (Receptacle) (12-Pin) (Includes Receptacle As & Wedge)1
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
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136-7783 Battery Gp
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***83Screw-Machine; (10-24x2.5-In)4
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106-8229 Glow Plug Gp
10***29Glow Plug Group1
11***45Plate As1
11***47Rod2
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105-8070 Lamp Gp-Flood
10***70Lamp Group-Flood1
10***59Glow Plug6
10***60Bar-Connector1
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136-6488 Lighting Gp-Rops -Enclosed
10***67Bracket1
10***51Harness As-Wiring1
10***70Lamp Group-Flood3
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136-6487 Lighting Gp-Rops -Open
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
13***87Lighting Group-Rops; -Open1
15***54Lens As; (Flood)1
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136-7784 Starting Aid Gp-Ether
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)2
10***50Harness As-Wiring1
10***70Lamp Group-Flood3
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105-3133 Starting Motor Gp-Electric
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
10***33Starting Motor Group-Electric1
13***14Ether Cylinder1
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105-9804 Starting Motor Gp-Electric
10***85Cap-Starting Motor1
10***04Starting Motor Group-Electric1
10***61Frame-Starter1
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7n-0718 Switch Gp-Disconnect -Battery
10***33Starting Motor Group-Electric1
3K***57Gasket1
7N***18Switch As-Disconnect; -Battery-Ground Level1
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168-7908 Switch Gp-Magnetic -Main Power, Propel Sensor
16***08Switch Group-Magnetic; -Main Power, Propel Sensor1
17***02Switch Group-Magnetic; -Starting Motor1
17***03Switch Group-Magnetic; -Air Inlet Heater1
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175-2302 Switch Gp-Magnetic
15***70Kit-Connecting Plug; (2-Pin)(Engine Sensor Wiring Harness)1
17***02Switch Group-Magnetic; -Starting Motor1
18***36Socket-Connector; (16-Ga To 18-Ga)2
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175-2303 Switch Gp-Magnetic
01***80Lockwasher2
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
17***03Switch Group-Magnetic; -Air Inlet Heater1
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3e-7278 Switch Gp-Magnetic
2H***22Lockwasher2
3E***78Switch Group-Magnetic; -Starting Motor1
6F***45Nut-Full; (3/8-24-Thd)2
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9g-7641 Switch Gp-Start -Engine, Key
01***80Lockwasher2
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
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118-1303 Warning Gp-Backup
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
11***03Warning Group-Backup1
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137-6246 Wiring Gp-Cab
11***02Switch As; (Travel Pressure)1
11***03Plate As1
12***49Alarm Group1
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Engine Arrangement
115-4840 Engine Ar
10***80Alternator Group-Charging; -12 Volt, 55 Ampere1
10***04Starting Motor Group-Electric1
10***28Camshaft Group1
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148-8215 Engine Ar-Primary
10***04Starting Motor Group-Electric1
10***28Camshaft Group1
10***29Glow Plug Group1
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149-8745 Engine Ar-Primary
10***80Alternator Group-Charging; -12 Volt, 55 Ampere1
10***04Starting Motor Group-Electric1
10***28Camshaft Group1
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115-5832 Installation Ar-Engine
10***08Fan Group-Blower1
11***31Support Group-Engine & Xmsn1
11***32Installation Ar-Engine1
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115-5834 Installation Ar-Engine
10***08Fan Group-Blower1
11***31Support Group-Engine & Xmsn1
11***33Radiator Group1
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Frame And Body
110-4870 Case Gp-Hydrostatic
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
11***70Case Group-Hydrostatic1
11***43Locknut; (5/16-18-Thd)1
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113-7903 Case Gp-Hydrostatic
11***10Case As-Hydrostatic1
11***03Case Group-Hydrostatic1
11***08Cover1
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148-0224 Counterweight Gp-Front
11***92Case As-Hydrostatic1
11***08Cover1
11***37Plate As1
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198-8492 Cover Gp-Access
10***28Cover1
12***92Counterweight As1
12***93Bar2
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5g-0779 Drawbar Gp
17***24Cover As1
1F***50Nut Rops Support1
5G***79Drawbar Group; (Fixed)1
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115-1128 Firewall Gp
11***28Firewall Group1
3B***46Cotter; (Pin)1
5G***80Drawbar Assem.1
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112-3854 Frame Gp-Main
09***00Washer; (12.7x30x4-mm Thk)4
11***54Frame Group-Main1
11***81Firewall As1
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112-3661 Guard Gp-Bottom
11***61Guard Group-Bottom1
11***31Guard As1
11***32Guard As1
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112-6753 Guard Gp-Bottom
09***32Spacer; (13.5x22x14-mm Thk)6
11***53Guard Group-Bottom1
11***48Guard As1
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107-2041 Guard Gp-Cab
09***32Spacer; (13.5x22x14-mm Thk)6
10***41Guard Group-Cab1
11***50Guard As1
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109-7145 Guard Gp-Cab
10***45Guard Group-Cab1
11***25Guard As-Brush1
5P***76Washer Guard To Support Assembly And Guard Assembly6
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109-7148 Guard Gp-Cab
10***46Guard As-Rear1
10***48Guard Group-Cab1
11***18Bracket As1
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107-2042 Guard Gp-Cab
10***42Guard Group-Cab1
11***24Guard As1
5P***76Washer Guard To Support Assembly And Guard Assembly9
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114-3603 Guard Gp-Radiator
05***02Plug1
10***26Grill As1
11***03Guard Group-Radiator1
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114-3611 Hood & Guard Gp
11***11Hood & Guard Group1
16***46Plate As2
16***49Seal1
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135-6338 Hood & Guard Gp -Eec
03***34Pin; (19.17 mm Lg)1
11***15Hood As1
12***57Support As; (Rh)1
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149-7350 Liner Gp-Sound Suppression
14***19Liner1
14***20Liner2
14***22Liner1
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149-6931 Liner Gp-Sound Suppression
14***15Liner1
14***16Liner1
14***18Liner1
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149-1193 Liner Gp-Sound Suppression
03***34Pin; (19.17 mm Lg)1
11***46Liner; (Lh)(Lh)1
12***57Support As; (Rh)1
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140-8349 Suppression Ar-Sound
09***00Washer; (12.7x30x4-mm Thk)3
14***49Suppression Ar-Sound1
14***21Liner1
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121-0111 Sweep Gp
12***11Sweep Group1
12***00Extension Group-Exhaust1
12***01Muffler Group1
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Fuel System
155-5620 Control Gp-Governor
03***48Clip; (11.11mm .437in Id)1
06***31Clevis1
10***07Rod End1
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115-1122 Control Gp-Governor
10***54Gasket-Exhaust1
10***85Elbow-Exhaust1
11***51Spacer; (10.5x18x53.5-mm Thk)1
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106-8271 Filter Gp-Primary Fuel
03***48Clip; (11.11mm .437in Id)1
06***31Clevis1
10***07Rod End1
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118-3503 Governor Gp
09***98Head, Fuel Filter1
09***25Plug1
09***26Bolt; (M14x1.5x26-mm)1
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147-0365 Governor Gp-Electronic
11***37Housing As1
11***38Plate1
11***39Cover1
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115-1124 Lines Gp-Fuel
08***32Bolt (18mm Long)1
09***36Nut1
09***01Control Lever Assembly.1
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106-8267 Lines Gp-Fuel Filter
09***88Clamp; (Hose)1
10***29Hose; (60-cm)0
10***27Tube As1
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128-2932 Lines Gp-Fuel Injection
11***37Line As-Fuel Injection1
11***38Line As-Fuel Injection1
11***39Line As-Fuel Injection1
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106-8273 Lines Gp-Fuel Injection
09***34Hose As1
09***40Washer2
09***09Screen1
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107-3650 Lines Gp-Fuel Injection
09***35Cap1
09***74Clip-Hose13
09***94Shim (0.700mm Thick)1
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118-3500 Pump As-Fuel Injection
11***11Nut1
11***12Key-Woodruff1
11***13Washer1
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147-0129 Pump As-Fuel Injection
09***40Washer4
09***33Bolt, Eye1
11***40Kit-Fuel Injection Pump1
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107-8525 Pump As-Fuel Injection
09***35Cap1
09***74Clip-Hose13
10***25Pump As-Fuel Injection1
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107-3728 Pump Gp-Fuel Injection
08***07Seat, Lower6
08***09Shim (1.0mm Thick)3
08***10Shim (1.5mm Thick)3
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128-2930 Pump Gp-Fuel Injection
09***29Seal-O-Ring (Id=139.5mm); (Id=139.50mm)1
10***25Pump As-Fuel Injection1
10***30Adapter1
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118-6814 Pump Gp-Fuel Tfr & Priming
09***29Bolt (16mm Long)6
09***51Bolt (22mm Long)1
09***29Seal-O-Ring (Id=139.5mm); (Id=139.50mm)1
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123-8916 Separator Gp-Water
08***38Piston1
09***40Washer3
09***79Valve, Check2
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9p-7121 Strainer-Fuel -Tank
09***40Washer4
09***41Bolt; (M14x1.5x27-mm)2
11***21Fitting2
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117-4965 Tank Gp-Fuel
09***24Plug-Button2
11***65Tank Group-Fuel2
16***00Cover As1
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154-1970 Tank Gp-Fuel
11***10Gasket-Screen; (Hydraulic Tank)1
11***11Cover1
15***00Tank As-Fuel1
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115-1116 Tank Gp-Fuel
09***24Plug-Button1
11***16Tank Group-Fuel1
11***65Tank Group-Fuel1
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Hydraulic System
7j-9223 Cylinder Gp-Bulldozer Lift
8y-0246 Lines Gp-Rear Attachment
11***69Tube As1
14***35Elbow-90 Degree1
14***71Hose As1
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9j-8674 Cylinder Gp-Tilt
16***95Seal As-Buffer1
16***04Seal-U-Cup1
1H***28Seal (3.73 In. Inside Diameter)1
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9t-7250 Valve Gp-Bank 4
09***25Rod2
09***26Rod1
6V***83Nut-Full; (3/8-24-Thd)(Rh)2
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9t-7249 Valve Gp-Bank 3
09***28Rod2
09***29Rod1
6V***83Nut-Full; (3/8-24-Thd)(Rh)2
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142-9418 Valve Gp-Control
09***94Ring-Retaining1
09***33Bolt-Socket Head; (M5x0.8x20-mm)1
11***74Lever1
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9t-7641 Valve Gp-Control -Ripper
09***32Cap1
4J***27Seal-O-Ring -Pipe As. To Hydraulic Tank1
6F***55Seal --To Manifold Ferrule2
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9t-7651 Valve Gp-Control -Hoist
11***19Spring1
2M***80Seal--To Connector Pump Outlet1
4J***27Seal-O-Ring -Pipe As. To Hydraulic Tank1
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9t-7642 Valve Gp-Control -Angle, Tilt
09***32Cap1
4J***27Seal-O-Ring -Pipe As. To Hydraulic Tank1
6F***55Seal --To Manifold Ferrule2
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9t-7638 Valve Gp-Relief
03***21Ring-Back-Up1
03***79Seal-O-Ring (Id=10.82mm)2
03***27Seal-O-Ring; (19.18mm Id)1
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6e-4402 Valve Gp-Relief -Charge Pressure
16***15Retainer-Spring1
18***10Screw1
20***42Spring1
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9t-7639 Valve Gp-Relief
03***27Seal-O-Ring; (19.18mm Id)1
03***43Seal-O-Ring2
8L***79Seal Oil Tubes Pump To Control; Seal-Oil Tubes-Pump To Control1
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136-3156 Cylinder Gp-Angling
169-9527 Cylinder Gp-Angling
139-0548 Cylinder Gp-Angling
141-2915 Cylinder Gp-Bulldozer Lift
14***15Cylinder Group-Bulldozer Lift1
16***86Seal As-Buffer1
16***94Seal-U-Cup1
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7j-9920 Cylinder Gp-Ripper
00***63Ring1
14***17Cylinder As1
14***19Rod As1
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143-7219 Cylinder Gp-Tilt
00***63Ring1
14***19Cylinder Group-Tilt1
2H***31Packing,Preformed Plate Part Of Kit P/N 4j***801
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8y-7126 Hydraulic Ar
00***63Ring1
14***20Cylinder As1
16***86Seal As-Buffer1
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115-1074 Hydraulic Ar
11***74Hydraulic Ar1
8Y***46Lines Group-Rear Attachment; Lines Gp-Rear Attachment1
8Y***11Control Group-Hydraulic Hand1
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139-4622 Lines Gp-Angle & Tilt
11***08Tank Group-Hydraulic1
11***79Lines Group-Hydraulic1
11***81Lines Group-Pump1
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139-7729 Lines Gp-Angle & Tilt
00***62Elbow (To Primary Filter Base)4
03***44Reducer-Flared (12.70 Od To 9.52 Od)6
03***88Connector-Tube Assembly To Main Relief2
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115-1079 Lines Gp-Hydraulic
11***79Lines Group-Hydraulic1
14***18Tube As1
14***24Tube As2
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164-6425 Lines Gp-Pilot
11***89Plate1
11***95Rod1
11***99Hose As1
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156-1935 Lines Gp-Pilot
10***93Valve Group-Pilot1
11***41Hose As1
11***89Plate1
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115-1072 Lines Gp-Pilot
11***72Lines Group-Pilot1
11***51Tube As1
11***52Tube As1
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115-1081 Lines Gp-Pump
00***70Washer (Spring); (Conical)6
11***81Lines Group-Pump1
11***03Hose As1
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6s-3559 Lines Gp-Ripper
2M***80Seal--To Connector Pump Outlet2
5G***33Tube As2
5G***90Bracket As1
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106-8266 Manifold Gp-Inlet
10***66Manifold Group-Inlet1
13***77Shield4
13***92Grommet2
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168-7958 Modification Ar-Joystick
09***24Plug-Button2
10***06Film-Stripe; (Lh)1
12***56Film-Instruction; (Engine Idle Speed)1
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170-5136 Modification Ar-Joystick
12***18Seal1
12***56Film-Instruction; (Engine Idle Speed)1
12***57Film-Instruction; (Speed)1
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137-1296 Pump Gp-Gear
09***32Bolt-Socket Head; (M12x1.75x95-mm)4
13***96Pump Group-Gear; -Implement1
13***81Kit-Seal; (Gear Pump)1
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137-0300 Pump Gp-Gear
13***00Pump Group-Gear; -Implement1
13***96Pump Group-Gear; -Implement1
6D***04Gasket--To Housing Assembly Rear1
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112-2908 Tank Gp-Hydraulic
11***08Tank Group-Hydraulic1
11***67Tank Group-Hydraulic1
11***48Cover As-Hydraulic Tank1
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112-2967 Tank Gp-Hydraulic
11***10Gasket-Screen; (Hydraulic Tank)1
11***24Strainer As; (Hydraulic Tank)1
11***67Tank Group-Hydraulic1
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115-1084 Valve & Mtg Gp-Control
11***84Valve & Mtg Group-Control1
1F***50Nut Rops Support9
5P***76Washer Guard To Support Assembly And Guard Assembly4
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6s-4767 Valve Gp-Breaker Relief
2B***94Bolt Compression Release Shaft Locking3
3B***05Washer,Lock Tube Assembly Mounting; Used On Engine P/N 5r6983
3B***38Nipple-- Bushing To Pressure Protection Valve; -- Bushing To Pressure Protection Valve1
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9t-7634 Valve Gp-Check
03***27Seal-O-Ring; (19.18mm Id)1
10***91Seal Kit1
9T***34Valve Group-Check; -Makeup1
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108-7793 Valve Gp-Pilot
09***07Nut; (M12x1.75-Thd)1
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***93Valve Group-Pilot1
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156-2600 Valve Gp-Pilot
08***70Sleeve6
11***31Control Group-Joystick1
11***09Guide-Plunger4
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Implements
5g-0269 Mounting Gp-Trunnion
3B***89Fitting-Grease; (Fan And Alternator Drive)2
5G***69Trunnion Mounting Group; Trunnion Mounting Group1
6V***02Spherical Bearing2
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142-5878 Bulldozer Ar-Angling
13***61Mounting Group-Trunnion1
13***48Cylinder Group-Angling2
13***29Lines Group-Angle & Tilt1
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117-4575 Bulldozer Ar-Pwr Angle & Tilt
11***75Bulldozer Ar-Pwr Angle & Tilt1
13***56Cylinder Group-Angling2
13***63C-Frame Group-Power Angling1
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117-4576 Bulldozer Ar-Pwr Angle & Tilt
11***76Bulldozer Ar-Pwr Angle & Tilt1
13***56Cylinder Group-Angling2
13***63C-Frame Group-Power Angling1
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139-7727 Bulldozer Ar-Pwr Angle & Tilt
13***61Mounting Group-Trunnion1
13***48Cylinder Group-Angling1
13***27Bulldozer Ar-Pwr Angle & Tilt1
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138-4963 C-Frame Gp-Power Angling
06***12Ring-Retaining1
13***63C-Frame Group-Power Angling1
13***64C-Frame As1
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139-7730 C-Frame Gp-Power Angling -Angling
13***30C-Frame Group-Power Angling; -Angling1
14***80Frame As1
14***37Bracket As1
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150-5131 Link Gp-Pitch
15***23Boss As1
15***25Bar As1
15***31Link Group-Pitch1
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138-7492 Link Gp-Pitch
13***92Link Group-Pitch1
13***85Plate As2
13***88Plate1
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138-2799 Mounting Gp-Trunnion
13***61Mounting Group-Trunnion1
13***99Mounting Group-Trunnion1
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138-1961 Mounting Gp-Trunnion
10***89Bearing-Aligning2
13***61Mounting Group-Trunnion1
14***79Eyebolt2
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Lubrication System
106-8261 Filter Gp-Engine Oil
09***68Plug, Tapered2
09***28Seal-O-Ring (Id=25.70mm)1
09***71Seal-O-Ring (Id=94.40mm)1
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106-8265 Fumes Disposal Gp
10***65Fumes Disposal Group1
10***43Hose; (Upper)1
10***44Hose; (Lower)1
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151-5283 Fumes Disposal Gp
15***81Hose; (Upper Fumes Disposal)1
15***83Fumes Disposal Group1
15***19Hose; (Lower Fumes Disposal)1
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106-8257 Gauge Gp-Oil Level (Dipstick) -Engine
10***57Gauge Group-Oil Level (Dipstick); -Engine1
12***41Tube As-Guide1
20***47Gauge-Oil Level; (Engine Oil Dipstick)1
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106-8269 Pump Gp-Engine Oil
09***21Seal-O-Ring (Id=19.08mm)1
09***85Washer-Copper1
10***44Nut1
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147-1046 Valve Gp-Fluid Sampling
14***46Valve Group-Fluid Sampling; -Engine Oil1
3B***64Bushing; (Reducing)1
7J***11Elbow-Pipe; (1/4-18 Nptf Thd)1
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Machine Arrangement
137-7457 Chassis Ar
11***61Guard Group-Bottom1
11***54Frame Group-Main1
11***37Battery & Wiring Group1
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115-1097 Chassis Ar
11***61Guard Group-Bottom1
11***54Frame Group-Main1
11***37Battery & Wiring Group1
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115-1098 Chassis Ar
11***61Guard Group-Bottom1
11***54Frame Group-Main1
11***37Battery & Wiring Group1
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115-1088 General Ar
11***01Power Train Ar1
11***74Hydraulic Ar1
11***88General Ar1
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137-7460 General Ar
11***74Hydraulic Ar1
11***40Engine Ar1
11***34Installation Ar-Engine1
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115-1089 General Ar
11***02Power Train Ar1
11***74Hydraulic Ar1
11***89General Ar1
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Operator Station
3e-6107 Radio Gp -Am/Fm Cassette
10***06Receptacle Kit; (Includes Wedge And Receptacle Assem.)1
19***54Sleeve1
3E***89Wedge-Receptacle Lock; (8-Pin)1
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6w-8505 Adjuster Gp-Seat
01***89Bolt; (1/2-13x0.75-In)1
1B***82Spacer1
4V***50Plate-Slide Track1
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120-5331 Air Conditioner Ar
10***82Guard As-Fan1
10***61Compressor & Mtg Group-Refrig1
10***41Air Conditioner Group1
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156-3561 Air Conditioner Ar
10***82Guard As-Fan1
10***41Air Conditioner Group1
13***41Lines Group-Air Conditioner1
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101-9641 Air Conditioner Gp
06***93Grommet; (Rh)1
10***41Air Conditioner Group1
10***37Coil As-Evaporator1
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138-4839 Blower Gp-Cab
10***43Plate-Orifice2
10***26Wheel As-Blower2
10***34Housing As1
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119-5688 Cab Gp
10***48Liner-Cab1
10***49Visor1
10***54Window As-Sliding1
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100-9961 Compressor & Mtg Gp-Refrig
10***59Support As1
10***61Compressor & Mtg Group-Refrig1
10***68Pulley1
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3e-1908 Compressor Gp-Refrigerant
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***39Pin-Connector; (14-Ga To 18-Ga)(For 14 Gauge Wire)2
31***18Valve As-Pressure Relief; (Refrigerant Compressor)1
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156-3557 Compressor Gp-Refrigerant
10***59Support As1
14***03Plate2
15***57Compressor Group-Refrigerant1
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8y-8185 Condenser & Mtg Gp-Refrigerant
10***16Condenser Group-Refrigerant1
10***11Bracket As1
13***51Cover As1
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101-9616 Condenser Gp-Refrigerant
10***16Condenser Group-Refrigerant1
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
11***15Relay As; (12-Volt)(Junction Box)2
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165-4754 Control Gp-Handle
15***75Kit-Receptacle; (6-Pin)1
15***53Grommet1
16***02Kit-Cap; (Joystick Control)1
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117-7714 Control Gp-Hydraulic Hand
03***55Locknut; (5/16-18-Thd)(Marked X)8
11***14Control Group-Hydraulic Hand1
1B***04Key,Woodruff Governor And Decelerator Control1
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8y-7111 Control Gp-Hydraulic Hand
0L***70Handle-Lever1
1B***82Spacer1
3B***10Cotter-To Inspection Door1
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168-7959 Control Gp-Steering
00***70Washer (Spring); (Conical)6
16***23Bracket As1
16***32Plate1
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115-1126 Dash Gp
11***26Dash Group1
11***90Film-Top1
11***91Film-Panel1
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119-5694 Dash Gp
11***94Dash Group1
14***51Dash As1
14***35Liner1
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124-4246 Door Gp-Cab
10***00Glass1
12***46Door Group-Cab1
12***19Cover1
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164-0805 Door Gp-Cab
12***47Door As1
12***19Cover1
12***10Lock As-Cylinder1
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8y-5874 Extension Gp-Backrest -Cloth
8Y***74Extension Group-Backrest; Backrest Extension Group1
8Y***77Pan As-Extension1
8Y***43Cushion Kit; (Consists Of Fastener, Cushion Assem.)1
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8y-5959 Extension Gp-Backrest -Vinyl
8Y***77Pan As-Extension1
8Y***47Fastener2
8Y***59Extension Group-Backrest1
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115-1121 Guard Gp-Vandalism
11***21Guard Group-Vandalism1
11***27Plate1
11***28Guard As1
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137-4142 Heater Gp-Cab
09***92Locknut; (M6x1-Thd)1
10***43Plate-Orifice2
10***26Wheel As-Blower2
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136-7785 Heater Gp-Cab
00***14Coupling-Pipe1
00***83Nipple-Pipe; (Hexagon)1
10***23Valve As-Shutoff; (Lower)1
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120-5329 Heater Gp-Cab
10***42Heater Group-Cab1
10***01Cover1
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
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101-9642 Heater Gp-Cab
10***42Heater Group-Cab1
10***31Plate1
10***32Plate1
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108-4582 Housing Gp-Seat Suspension
09***78Pin-Spring1
10***24Kit-Indicator; (Weight Adjustment)(Suspension Seat)1
10***79Kit-Bumper; (Weight Adjustment)(Suspension Seat)1
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101-4953 Installation Gp-Radio
10***53Installation Group-Radio1
2N***80Screw-Machine; (10-24x0.75-In)8
3E***56Washer-Hard; (17.5x30x6-mm Thk)8
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115-1125 Instrument Gp
10***69Switch As-Rocker; (Starting Aid)1
10***47Switch As-Rocker; (Auxiliary Front Flood Lamps)1
10***55Housing-Switch; (Lights)2
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137-4141 Lines Gp-Air Conditioner
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***22Tube As1
10***23Tube As1
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120-9764 Lines Gp-Heater
00***14Coupling-Pipe1
00***83Nipple-Pipe; (Hexagon)1
10***23Valve As-Shutoff; (Lower)1
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120-5324 Mounting Gp-Cab
12***24Mounting Group-Cab1
3D***52Locknut 6.93 mm(.273 In.) Thick1
4B***83Bolt (.875" Long); (5/16-24x0.875-In)1
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5g-0521 Mounting Gp-Rops
5G***78Plate2
5G***50Cap2
5G***17Bracket As; (Rh)1
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108-8421 Pan Gp-Backrest -Lumbar
10***21Pan Group-Backrest; -Seat Back1
10***23Shaft As-Lumbar1
10***24Pan-Lumbar1
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8y-5992 Pan Gp-Seat
3K***97Pin 3.18 mm(.125 In.) Diameter4
6V***56Ring-Retaining2
8Y***92Pan As-Seat; (Bottom)1
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135-5946 Radio Gp
10***06Receptacle Kit; (Includes Wedge And Receptacle Assem.)2
13***46Radio Group1
13***62Kit-Knob; (Radio)1
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146-3090 Radio Gp -Am/Fm Cassette
10***06Receptacle Kit; (Includes Wedge And Receptacle Assem.)2
13***63Harness As-Radio; (Radio)1
13***65Bumper1
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120-5322 Rops Ar-Enclosed
10***81Alternator Group-Charging1
11***73Lines Group-Power Train Oil; -Charge1
12***22Rops Ar-Enclosed1
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120-5327 Rops Ar-Modular Cab
10***53Installation Group-Radio1
11***88Cab Group1
12***27Rops Ar-Modular Cab1
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171-7207 Rops Ar-Modular Cab
10***81Alternator Group-Charging1
12***24Mounting Group-Cab1
12***26Seat & Support Group1
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107-2334 Rops Ar-Open
10***49Rops Group-Open1
10***34Rops Ar-Open1
5G***21Mounting Group-Rops1
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106-5649 Rops Gp-Open
10***49Rops Group-Open1
10***50Rops As1
10***34Liner-Cab1
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115-1118 Seat & Support Gp
03***32Bolt; (5/16-18x0.43-In)6
10***14Plate As2
10***58Plate As1
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120-5326 Seat & Support Gp
03***32Bolt; (5/16-18x0.43-In)6
10***14Plate As2
10***58Plate As1
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122-4617 Seat Belt Gp -Retractable
12***17Seat Belt Group; -Retractable-Operator1
1A***50Bolt (7/16-20x1.75in); (7/16-20x1.75-In)1
4D***32Locknut (7/16-20 Thd)1
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156-1148 Seat Belt Gp -Retractable
15***48Seat Belt Group; -Retractable-Operator1
1A***50Bolt (7/16-20x1.75in); (7/16-20x1.75-In)1
1L***80Bolt; (7/16-20x1.5-In)1
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8y-5986 Seat Gp -Cloth, Lumbar
06***03Shim (.060mm Thk); (1.52-mm Thk)4
09***78Pin-Spring1
09***14Pin, Clevis1
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8r-5373 Seat Gp-Suspension
00***92Screw-Washer Head; (1/4-20x0.5-In)4
03***71Capscrew, Csk. Hd., 3/8in.-16 N.C. X 1in.2
10***65Pin1
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8y-5976 Seat Gp -Vinyl
06***03Shim (.060mm Thk); (1.52-mm Thk)4
09***78Pin-Spring1
09***14Pin, Clevis1
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8y-6179 Seat Gp-Suspension -Vinyl
10***82Suspension Group-Seat; -Contour-Shock Absorber1
14***45Kit-Slider Block; (Suspension Seat)1
15***48Seat Belt Group; -Retractable-Operator1
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8y-6138 Seat Gp-Suspension -Cloth, Lumbar
10***82Suspension Group-Seat; -Contour-Shock Absorber1
12***17Seat Belt Group; -Retractable-Operator1
14***45Kit-Slider Block; (Suspension Seat)1
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107-2058 Seat Gp-Suspension
10***58Seat Group-Suspension1
16***50Lever4
8Y***38Seat Group-Suspension; -Cloth, Lumbar1
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106-6439 Seat Gp-Suspension
10***39Seat Group-Suspension1
16***50Lever4
8Y***79Seat Group-Suspension1
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8y-3914 Seat Gp-Suspension
00***92Screw-Washer Head; (1/4-20x0.5-In)4
03***71Capscrew, Csk. Hd., 3/8in.-16 N.C. X 1in.2
10***65Pin1
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108-4082 Suspension Gp-Seat -Contour
10***03Fastener20
10***94Kit-Tether Belt; (Suspension Seat)(Seat Suspension)1
10***95Kit-Suspension Roller; (Suspension Seat)(Seat Suspension)1
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6w-8502 Suspension Gp-Seat
02***24Locknut; (1/4-20-Thd)2
16***61Arm As1
17***21Clip23
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106-9706 Tank Gp-Window Washer
10***06Tank Group-Window Washer1
10***19Pump As-Washer1
10***29Nozzle As-Washer1
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121-0119 Washer Gp-Window
10***06Tank Group-Window Washer1
10***52Switch As; (Washer)1
11***99Gasket; (Air Conditioner Control)1
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101-4954 Window As-Sliding
10***54Window As-Sliding1
10***67Glass1
10***68Glass1
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101-4966 Window As-Sliding
10***66Window As-Sliding1
10***69Glass1
10***70Glass1
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164-0803 Window Gp-Sliding
16***95Glass1
16***96Glass1
16***03Window Group-Sliding1
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164-0804 Window Gp-Sliding
16***97Glass1
16***98Glass1
16***04Window Group-Sliding1
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106-9707 Wiper Gp-Window
10***07Wiper Group-Window1
10***26Motor As-Window Wiper1
3Y***88Receptacle (To Wiper Switch)1
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106-9708 Wiper Gp-Window
10***08Wiper Group-Window1
10***26Motor As-Window Wiper1
3Y***88Receptacle (To Wiper Switch)1
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121-0118 Wiper Gp-Window
10***04Arm-Window Wiper2
10***05Blade As-Wiper; (450-mm)(Front, With Wiper)2
10***07Wiper Group-Window1
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Power Train
142-9415 Actuator Gp-Pump
09***66Washer; (Hard) (4.5x9x1mm Thk)2
10***12Name-Plate (Name Of Machine:Ex280h), Cover1
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
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174-5963 Brake Gp-Parking
11***75Housing-Spring1
11***78Pin2
11***84Gasket1
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114-3573 Brake Gp-Parking
00***64Seal-O-Ring4
11***73Brake Group-Parking1
11***58Ring; (5.77mm Thk)2
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114-6425 Control Gp-Brake
11***75Housing-Spring1
11***78Pin2
11***84Gasket1
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114-8840 Control Gp-Spd Override & Brk
01***61Setscrew-Square Head1
11***70Hose As1
11***71Hose As1
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113-1755 Drive Gp-Final
01***61Setscrew-Square Head1
11***55Drive Group-Final1
11***71Hose As1
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113-1756 Drive Gp-Final
09***69Bolt36
10***27Shaft-Sun Gear2
10***04Hub-Ring Gear2
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113-9768 Drive Gp-Hydrostatic
09***69Bolt36
10***04Hub-Ring Gear2
10***33Gear-Pinion; (21-Teeth)2
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128-3438 Drive Gp-Power Take-Off
10***33. Pedestal, Flange-Nylon1
11***66Plate As1
12***01Stud-Taperlock4
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116-7530 Filter Gp-Oil
11***19Seal-Lip Type1
11***30Filter Group-Oil1
12***43Hose As1
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118-6656 Filter Gp-Oil
11***56Filter Group-Oil; -Power Train Charging1
1G***78Filter As-Oil; (Advanced Efficiency)(Hydraulic)1
3J***07Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve1
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139-3331 Head Gp-Motor
13***31Head Group-Motor1
1G***78Filter As-Oil; (Advanced Efficiency)(Hydraulic)1
3J***07Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve1
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142-9416 Head Gp-Pump
09***74Bolt-Socket Head; (M12x1.75x65-mm)2
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
11***10Dowel2
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145-1076 Head Gp-Pump
08***72Plug-O-Ring3
12***94Plug; (Break Off)2
12***17Plug1
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123-8917 Lines Gp-Charge Pressure
11***93Clip1
11***30Filter Group-Oil1
11***56Filter Group-Oil; -Power Train Charging1
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112-6751 Lines Gp-Drain
11***93Clip1
11***51Lines Group-Drain1
11***30Filter Group-Oil1
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112-3664 Lines Gp-Hydrostatic
11***64Lines Group-Hydrostatic1
11***69Manifold Group-Return & Flushing1
11***27Tube As1
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115-1070 Lines Gp-Power Train Cooler
11***70Lines Group-Power Train Cooler1
11***26Elbow2
11***29Elbow1
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115-1073 Lines Gp-Power Train Oil -Charge
11***93Clip1
11***73Lines Group-Power Train Oil; -Charge1
11***28Hose As1
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171-6745 Lines Gp-Transmission Oil
11***93Clip1
11***30Filter Group-Oil1
11***56Filter Group-Oil; -Power Train Charging1
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115-1069 Manifold Gp-Return & Flushing
11***93Clip2
11***69Manifold Group-Return & Flushing1
11***30Filter Group-Oil1
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113-1991 Motor Gp-Piston -Link
10***93Poppet2
11***91Motor Group-Piston; -Link1
11***77Plate As1
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113-8302 Power Train Ar
11***64Lines Group-Hydrostatic1
11***51Lines Group-Drain1
11***55Drive Group-Final1
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113-8301 Power Train Ar
09***42Ring-Retaining1
11***01Power Train Ar1
12***48Seal-Shaft1
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137-7465 Power Train Ar
11***70Case Group-Hydrostatic1
11***64Lines Group-Hydrostatic1
11***51Lines Group-Drain1
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142-9417 Pump Gp-Charge
11***70Case Group-Hydrostatic1
11***64Lines Group-Hydrostatic1
11***51Lines Group-Drain1
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145-1077 Pump Gp-Charge
10***65Bolt-Socket Head; (M8x1.25x20-mm)8
11***96Key-Shaft1
12***98Seal-Bonded8
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145-7448 Pump Gp-Charge
11***96Key-Shaft1
12***77Bushing-Coupling1
14***09Ring1
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113-9420 Pump Gp-Piston
10***65Bolt-Socket Head; (M8x1.25x20-mm)8
11***20Pump Group-Piston1
11***96Key-Shaft1
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142-9413 Pump Gp-Piston
08***01Plug As2
12***94Plug; (Break Off)1
12***01Pin-Spring2
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152-3350 Pump Gp-Piston
08***01Plug As2
11***36Plug1
12***94Plug; (Break Off)1
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152-3351 Pump Gp-Piston
11***49Fitting As; (Quick Disconnect)3
11***20Pump Group-Piston1
15***45Elbow2
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114-3335 Pump Gp-Piston
11***35Pump Group-Piston1
14***12Pump Group-Piston1
14***13Pump Group-Piston1
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145-7446 Pump Gp-Piston
08***01Plug As2
11***36Plug1
12***01Pin-Spring2
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142-9412 Pump Gp-Piston
14***12Pump Group-Piston2
14***46Pump Group-Piston1
6B***96Washer-Thrust; (16.25x26.97x2.36-mm Thk)2
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139-3329 Rotating Gp-Motor
11***49Fitting As; (Quick Disconnect)3
11***35Pump Group-Piston1
13***29Rotating Group-Motor1
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145-1075 Rotating Gp-Pump
13***06Rod2
14***77Ring2
14***24Barrel As1
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142-9414 Rotating Gp-Pump
09***16Ring-Retaining; (External)1
11***19Screw-Special; (M5x0.8x8-mm)14
12***54Shim; (3.80mm Thk)1
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3t-1078 Valve Gp-Brake
13***06Rod2
14***77Ring2
14***24Barrel As1
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139-7747 Valve Gp-Flushing -Propel Motor
13***47Valve Group-Flushing; -Propel Motor1
3T***24Seal-Spool2
3T***25Ring2
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123-7557 Valve Gp-Relief -Pressure Override
10***17Seal-O-Ring2
12***57Valve Group-Relief; -Pressure Override1
12***91Plug2
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160-7203 Valve Gp-Solenoid
12***75Screw-Lock1
12***89Valve-Bushing1
12***90Control-Piston1
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Service Equipment And Supplies
138-6833 Film Gp
10***46Film-Stripe; (Xl)1
10***47Film-Stripe; (Xl)1
10***47Film-Stripe-Rh; (Cat)1
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138-6832 Film Gp
10***47Film-Stripe-Rh; (Cat)1
10***48Film-Stripe-Lh; (Cat)1
10***49Film-Identification; (Cat)(Rh)1
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138-6830 Film Gp
10***47Film-Stripe-Rh; (Cat)1
10***48Film-Stripe-Lh; (Cat)1
10***49Film-Identification; (Cat)(Rh)1
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9w-1494 Kit-Service Meter
11***05Film-Identification; (Service Meter)1
19***32Meter Group-Service1
20***19Wire As1
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5p-8502 Padlock Gp
5P***00Key Total 2 Pieces Per Unit; (Literature Compartment)1
5P***02Padlock Group; (Includes: Battery Compartments, Platform Compartments, Radiator Access Door, Firewall Doors)1
8Y***64Sleeve (Not Part Of This Group)1
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137-8052 Plate & Film Gp
03***91Pop - Rivet (To Secure Safety Lable)4
11***12Film-Identification; (Oil Filter)(Basic Engine)1
12***06Film-Warning; (Next To Radiator Fill Cap)1
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115-1131 Plate & Film Gp
03***91Pop - Rivet (To Secure Safety Lable)4
11***12Film-Identification; (Oil Filter)(Basic Engine)1
11***31Plate & Film Group1
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1p-8376 Plate & Film Gp
1P***76Plate & Film Group; Paint & Lubricant Group1
7B***28Drive Screws-2 Required For Installing2
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115-1130 Plate & Film Gp
03***91Pop - Rivet (To Secure Safety Lable)4
11***12Film-Identification; (Oil Filter)(Basic Engine)1
11***30Plate & Film Group1
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Steering And Braking System
164-9438 Valve Gp-Pilot
117-1712 Valve Gp-Rotary
171-2529 Valve Gp-Rotary
Undercarriage
6y-1675 Track Gp -2 Required
6y-1671 Track Gp -2 Required
157-4619 Track Gp
6y-1674 Track Gp -2 Required
6y-1679 Track Gp
6y-2521 Track Gp
137-7508 Frame Gp-Track Roller
10***25Strip1
12***63Frame As; (Rh)1
12***64Frame As-Lh1
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125-4551 Frame Gp-Track Roller
10***60Bracket As-Rh1
10***62Bracket As-Lh1
10***71Tube1
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137-7527 Guard Gp-Recoil Mechanism
10***44Cover As2
13***27Guard Group-Recoil Mechanism1
13***39Guard As; (Lh)1
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137-7530 Guard Gp-Recoil Mechanism
13***30Guard Group-Recoil Mechanism1
13***43Guard-Idler2
14***38Guard As; (Lh)1
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125-4561 Guard Gp-Recoil Mechanism
10***78Guard As; (Rh)2
10***79Guard As; (Lh)2
12***61Guard Group-Recoil Mechanism1
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108-1580 Guard Gp-Idler
10***20Guard As; (Rh)2
10***21Guard As; (Lh)2
10***80Guard Group-Rock1
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102-5937 Guard Gp-Idler
10***37Guard Group-Rock1
10***25Strip1
13***12Frame As; (Rh)1
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133-8182 Guard Gp-Track Guide
12***73Guard As; (Rh)1
12***74Guard As; (Lh)1
12***45Guard As; (Rh Outer)1
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133-8180 Guard Gp-Track Guide
13***80Guard Group-Track Guide1
13***43Guard-Idler2
14***38Guard As; (Lh)1
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136-8525 Guard Gp-Track Roller
12***45Guard As; (Rh Outer)1
12***46Guard As; (Lh Outer)1
12***55Guard2
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138-9688 Guard Gp-Track Roller
13***36Guard As; (Rh Inner/Lh Outer)2
13***37Guard As; (Lh Inner/Rh Outer)2
13***45Plate4
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5g-4380 Idler Gp-Front
13***45Plate4
13***46Plate4
13***92Guard As; (Rh Inner/Lh Outer)2
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137-7536 Idler Gp-Front
11***97Cylinder As2
11***78Seal As-U-Cup2
13***36Idler Group-Front1
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164-1047 Idler Gp-Track
11***97Cylinder As2
11***78Seal As-U-Cup2
13***38Yoke As2
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185-4037 Idler Gp-Track
10***87Idler & Bearing As1
18***37Idler Group-Track1
1H***96Packing,Preformed Cartridge Part Of Kit P/N 4j***802
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6y-1510 Link As-Track
10***87Idler & Bearing As1
1H***96Packing,Preformed Cartridge Part Of Kit P/N 4j***802
5M***00Lock Pin, Idler2
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154-3644 Link As-Track
11***22Bushing-Track37
15***44Link As-Track1
5G***47Stopper; (Rubber)37
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154-3646 Link As-Track
11***22Bushing-Track37
15***46Link As-Track1
15***60Pin-Track37
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6y-1511 Link As-Track
11***22Bushing-Track39
5G***47Stopper; (Rubber)39
6S***49Ring-Thrust78
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3t-4352 Roller Gp-Track
11***22Bushing-Track39
15***60Pin-Track39
3T***52Roller Group-Track; Single Flange Track Roller Group1
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3t-4353 Roller Gp-Track
0S***85Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine4
2M***49Washer-Retainer To Fan Bracket Assembly4
3N***95Ring (For Extreme Temperatures)2
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6s-3609 Roller Gp-Track Carrier
0S***85Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine4
2M***49Washer-Retainer To Fan Bracket Assembly4
3N***95Ring (For Extreme Temperatures)2
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154-3649 Seal & Bushing Gp-Track
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold5
15***49Seal & Bushing Group-Track1
17***60Roller As1
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115-1068 Support Gp-Undercarriage
8y-8243 Support Gp-Undercarriage
11***22Bushing-Track39
25***02Seal As78
8Y***43Support Group-Undercarriage1
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137-6410 Undercarriage Ar
115-1106 Undercarriage Ar
115-1107 Undercarriage Ar
Work Tools
6y-5837 Edge Gp-Bit & Cutting
3F***08Bolt-Plow; (5/8-11x2.25-In)18
4K***67Nut Rear Support To Frame18
4T***30Edge-Cutting2
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6y-5838 Edge Gp-Bit & Cutting
3F***08Bolt-Plow; (5/8-11x2.25-In)22
4K***67Nut Rear Support To Frame22
4T***32Edge-Cutting2
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139-7734 Blade Gp-Angling
13***34Blade Group-Angling1
14***90Blade As-Angling1
14***14Edge Group-Bit & Cutting1
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6y-5518 Blade Gp-Angling
10***84Pin As1
10***90Plate As1
12***93Blade As-Angling1
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6y-5510 Blade Gp-Angling
10***84Pin As1
10***90Plate As1
12***88Blade As-Angling1
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139-7728 Blade Gp-Angling
13***15Pin1
13***09Edge Group-Bit & Cutting1
13***28Blade Group-Angling1
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141-0414 Edge Gp-Bit & Cutting
14***13Edge-Cutting2
14***14Edge Group-Bit & Cutting1
3F***08Bolt-Plow; (5/8-11x2.25-In)22
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139-5509 Edge Gp-Bit & Cutting
13***09Edge Group-Bit & Cutting1
3F***08Bolt-Plow; (5/8-11x2.25-In)18
4K***67Nut Rear Support To Frame18
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170-8562 Guard Ar-Winch
8j-3294 Mounting Gp-Ripper
1J***48Pin (.50" Diameter)3
3B***27Cotter (Not Shown)3
4F***42Pin1
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9j-9005 Ripper Ar
5P***91Plate & Film Group1
6S***59Lines Group-Ripper; Ripper Lines Group1
7J***20Cylinder Group-Ripper1
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8j-3334 Ripper Gp
1J***48Pin (.50" Diameter)1
3B***27Cotter (Not Shown)1
8J***26Pin1
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8j-5313 Tooth Gp-Ripper
1U***02Tip-Penetration; (Long)1
3B***32Cotter; (Pin)2
6B***64Pin1
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170-8561 Winch Ar-Towing

D3C III serial number reference

The PIN plate on a D3C III is a metal tag riveted low on the frame in the engine compartment, on the left side near the cab - typical for Cat's small dozer classes up to D4 size. Read the first three characters as the serial prefix, which ties the machine to a production block and drivetrain (direct-drive vs Hystat); the remaining five digits are the sequential unit number within that block, e.g. 6SL00785.

PrefixIdentifies
6SLD3C, D3C XL, D3C LGP Series III - direct-drive (powershift)
7XLD3C Series III - direct-drive (powershift)
9TSD3C Series III - direct-drive (powershift)
4KSD3C, D3C XL, D3C LGP Series III Hystat
4TSD3C, D3C XL, D3C LGP Series III Hystat
5GSD3C, D3C XL, D3C LGP Series III Hystat

Frequently asked questions

What engine does the Caterpillar D3C III use?

All D3C III configurations - Standard, XL, and LGP, in both Hystat and powershift drivetrains - use the Cat 3046, a 6-cylinder naturally aspirated diesel of 5.0 L (305 cu in) displacement, rated 78 hp (58 kW) gross and 70-71 hp (52-53 kW) net at 2400 rpm.

What is the operating weight of the D3C III?

Operating weight varies by configuration and drivetrain, from roughly 7,040 kg (15,500 lb) for a Standard clutch/brake machine up to about 7,710 kg (17,000 lb) for an LGP Hystat machine. Hystat-drivetrain machines run somewhat heavier than their powershift counterparts in the same configuration.

What replaced the Caterpillar D3C III?

The D3C III was the last of the D3C-series small dozers. Caterpillar replaced it with the D3G, introduced in 2001 on a different engine platform.

What D3C III owners discuss

What's the practical difference between the Hystat and powershift versions of the D3C III?
The D3C III was offered with two distinct drivetrains: a dual-path closed-loop hydrostatic (Hystat) system, and a torque-converter/planetary powershift with clutch-brake steering. Operators describe the Hystat as smoother to steer and easier on the operator over a long day, with infinitely variable ground speed. The powershift version steers through traditional clutch-and-brake bands and feels more mechanical, but it's simpler and cheaper to repair when something wears out. Owners note the two drivetrains don't share service procedures, so confirm which one you have before troubleshooting.
What's the most common gripe with the Hystat drive on this dozer?
Track tension loosening over time is the recurring complaint - Hystat-equipped units need periodic grease-point adjustment near the relief valve on each track frame to take up slack, rather than a mechanical adjuster. Drift or shake in the drive is usually traced to worn hydraulic components (pump or motor wear) rather than the engine. The bigger worry owners raise is cost: when a Hystat pump or motor fails internally, debris spreads through the whole closed-loop circuit, and flushing the system adds to the repair bill. Have your dealer verify charge pressure and check for metal in the case drain before putting a repaired or rebuilt Hystat unit back to work.
What do owners say about the clutch/brake steering system on the powershift D3C III?
Reported issues center on turning response: if a machine will not turn one direction or turns sluggishly, the common diagnosis is the steering clutch not fully releasing before the brake band applies, and the roller bearings at the ends of the steering valve are a known high-wear item. On these transmissions, pump pressure feeding the clutch packs needs to be in spec for both drive engagement and steering clutch release - low pressure from a clogged suction screen, often loaded with worn clutch-lining debris, causes hard steering and clutch slip. Brake band free play is checked at the pedal and adjusted with a lock-nut and screw arrangement. Have your dealer verify steering clutch and brake adjustment and pressure test the transmission circuit before putting the machine into heavy work.
Is the Cat 3046 engine in the D3C III considered reliable?
Yes. Owners and shops treat the naturally aspirated 3046 as a solid, low-drama engine for this size of dozer, with a straightforward mechanical fuel system and no aftertreatment to worry about. The block traces to an industrial diesel design also built by Mitsubishi for other applications, a lineage some owners bring up when cross-shopping parts or comparing it to similar-sized industrial sixes. Routine complaints in the field are ordinary wear items - injector performance and minor oil seepage after high hours - rather than any inherent design flaw. Regular oil and fuel filter service is what owners credit for these engines running well past the mid-thousands of hours.
What electrical or sensor issues come up on the D3C III?
Gauge and sender complaints are the main electrical topic. Oil pressure readings that suddenly drop or peg into the red are commonly traced to the sending unit or its wiring connection rather than an actual pressure loss - owners recommend confirming actual pressure with a mechanical test gauge before assuming an engine problem. Some earlier-production instrument panels used mechanical, direct-reading gauges rather than electric senders, so panel configuration varies by production date - confirm which type is fitted before diagnosing a gauge fault. Poor grounding at the instrument cluster is another repeat cause of erratic or dead gauges.
What undercarriage wear patterns should owners expect?
Standard track-type-tractor wear pattern applies: a stretched, worn chain changes pitch and accelerates sprocket wear rapidly once it starts, and a chain that's begun to snake side to side chews up roller flanges and idlers along with it. Owners are warned not to over-tighten track tension to mask slack, since excess tension raises loading on the idlers and speeds their wear too. The usual field check is measuring chain stretch over several links and pins to estimate remaining undercarriage life, done with the track tensioned to spec, not slack.
What should I check before buying a used D3C III?
Confirm which drivetrain it has, Hystat or powershift/clutch-brake, since service history and parts needs differ between them. Measure undercarriage wear (chain and pin stretch over several links) rather than trusting a visual glance, and check for repair links or elongated pin holes. Cycle the hydraulics fully - blade and ripper, if fitted, should move smoothly with no gradual slow-down that would point to pump or cylinder seal wear, and have a shop pressure-check the charge and relief circuits at the control valves. On powershift machines, test steering clutch release and brake holding under load; on Hystat machines, watch for drift or wander at working speed and listen for pump or motor whine. Ask for maintenance records and match wear on pedals, seat, and steps to the hour-meter reading to catch a rolled-back clock. Have your dealer verify hydraulic and steering/brake condition with a proper pressure test before relying on the machine for real work.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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