Caterpillartrack-type tractor
Caterpillar D4B
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar D4B is a compact track-type tractor in Caterpillar's small-dozer class, built in Japan through the Shin Caterpillar Mitsubishi joint venture in the mid-to-late 1980s (2XF-prefix serials trace to 1987-88 production). It runs the Cat 3204, a 4-cylinder naturally aspirated diesel rated about 60.4 kW (81 hp) gross and 55.9 kW (75 hp) net at 2400 rpm, fed by a mechanical fuel system with no electronic controls or diagnostic connector. Operating weight runs 7,449 kg (16,422 lb) in Standard configuration and up to 7,800 kg (17,195 lb) in Low Ground Pressure (LGP) trim. Cat offered it with a Standard 2.44 m (8 ft) hydraulic angle/tilt blade or a wider 3.11 m (10.2 ft) LGP blade, plus an optional single-shank parallelogram ripper. The D4B sits in Caterpillar's compact dozer lineage alongside the D3B, and is a separate, lighter family from the classic big-frame D4/D4D/D4E/D4H dozers that only share the "D4" name.
Caterpillar replaced the D4B with the D4C, then D4C Series II and D4C Series III, refining the same compact platform with updated engines and hydraulics rather than a clean-sheet redesign. Steering and braking stayed on conventional dry clutch-and-brake bands through this small-frame family instead of differential steer, keeping the drivetrain mechanically simple to service in the field. The single-cylinder ripper, powershift transmission layout, and much of the undercarriage carry over closely across the D3B/D4B/D4C/D5C group, so parts and repair knowledge cross-shop well between them. In the used and parts market, the D4B's appeal is its compact size and pre-electronic simplicity: no ECM, no diagnostic connector, and a mechanical fuel system a shop can troubleshoot with basic tools. Surviving population is smaller than the later D4C, so dedicated D4B literature and take-off parts run thinner, and buyers often lean on D4C-family interchange for undercarriage and drivetrain components.
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 D4B specifications
Engine
| Engine model | Cat 3204, 4-cylinder inline diesel, mechanically governed (pre-electronic era) |
| Gross power | 60.4 kW (81 hp) @ 2400 rpm |
| Net power | 55.9 kW (75 hp) @ 2400 rpm |
| Displacement | Spec sheets for this model list 5.2 L (317 cu in); general Cat 3204 literature elsewhere commonly cites 4.4 L (268 cu in) for the same engine family. Figure not fully reconciled across sources — confirm against the engine serial plate for a specific unit. |
| Aspiration | Single power rating documented for the D4B (no turbocharged variant referenced); consistent with a naturally aspirated tune of the 3204 |
| Emissions | No EPA/Tier certification documented. Mechanically governed, pre-emissions-era diesel, consistent with a production run predating U.S. off-road emissions rules |
| Electrical system | 12V system, 40A alternator |
Weights
| Operating weight — Standard gauge | 7,449 kg (16,422 lb) |
| Operating weight — LGP (Low Ground Pressure) | 7,800 kg (17,195 lb) |
| Other configurations | No separate XL or extended-track configuration is documented for the D4B across available spec sheets — only Standard-gauge and LGP versions appear |
Dimensions
| Length with blade — Standard | 3.71–3.72 m (12.2 ft) |
| Length without blade — Standard | 2.77 m (9.1 ft) |
| Length with blade — LGP | 4.01–4.02 m (13.2 ft) |
| Length without blade — LGP | 3.00–3.02 m (9.8–9.9 ft) |
| Width over tracks — Standard | 1.78–1.80 m (5.8–5.9 ft) |
| Width over tracks — LGP | 2.29 m (7.5 ft) |
| Height to top of cab — both configurations | 2.67–2.68 m (8.75–8.8 ft) |
| Ground clearance — both configurations | 293 mm (11.5 in / 0.96 ft) |
| Track gauge — Standard | 1.42 m (4.67 ft) |
| Track gauge — LGP | 1.65 m (5.42 ft) |
| Track length on ground — both configurations | 2.06 m (6.76 ft) |
| Track shoe width — Standard | 406 mm (16 in) |
| Track shoe width — LGP | 635 mm (25 in) |
| Ground contact area — Standard | 1.67 sq m (2,590 sq in) |
| Ground contact area — LGP | 2.61 sq m (4,051 sq in) |
Performance
| Travel speed, forward (max) — both configurations | 11.1 km/h (6.9 mph); per-gear (1st/2nd/3rd) breakdown not documented in available spec sheets, only the top-gear maximum |
| Travel speed, reverse (max) — both configurations | 11.9 km/h (7.4 mph) |
| Transmission | Planetary powershift, 3 forward / 3 reverse gears |
| Ground pressure — Standard | 43.8–44.1 kPa (6.35–6.4 psi) |
| Ground pressure — LGP | Roughly 29–30 kPa (4.2–4.3 psi), derived from the operating weight and ground contact area published for this configuration. Some spec listings show a much higher figure for this configuration that does not reconcile with those same weight and area numbers — treat that higher figure as unreliable and verify with your dealer if precision matters |
| Drawbar pull | Not documented in available spec sheets for this model — consult a dealer or OEM literature for a certified figure |
| Gradeability | Not documented in available spec sheets for this model |
| Hydraulic pump type | Gear-type pump |
| Hydraulic pump flow | 55.3 L/min (14.6 gpm) |
| Hydraulic relief valve pressure | 17.2 MPa (2,500 psi) |
Blades
| Standard-gauge blade — width | 2.44 m (8 ft) |
| Standard-gauge blade — height | 930 mm (36.6 in) |
| Standard-gauge blade — capacity | 1.53 cu m (2.0 cu yd) |
| Standard-gauge blade — angle | 25 degrees each direction |
| Standard-gauge blade — max cutting depth | 381 mm (15 in) |
| LGP blade — width | 3.11 m (10.2 ft) |
| LGP blade — height | 828 mm (32.6 in) |
| LGP blade — capacity | 1.68 cu m (2.2 cu yd) |
| LGP blade — angle | 25 degrees each direction |
| LGP blade — max cutting depth | 389 mm (15.3 in) |
| Other blade types | No angling (A), semi-U (SU), U, or VPAT blade is documented for the D4B in available sources. The model shipped with a straight dozing blade sized to match its track gauge |
Service capacities summary
| Fuel tank — both configurations | 116.2 L (30.7 US gal) |
| Cooling system — both configurations | 20.1 L (5.3 US gal) |
| Engine oil (with filter) — both configurations | 12.1 L (3.2 US gal) |
| Hydraulic system — both configurations | 70.0 L (18.5 US gal) |
| Final drive — both configurations | 8.3 L (2.2 US gal), per side, typical for this class of final drive |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D4B fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | approx. 12.1 L (3.2 US gal) | Cat diesel engine oil (DEO); SAE 10W-30 in moderate ambient temperatures, SAE 15W-40 in warmer climates, lighter SAE 10W below freezing per Cat viscosity-by-temperature guidance for this engine class. Change with every filter service. |
| Cooling system | approx. 20 L (5.3 US gal) | Water/ethylene-glycol antifreeze-coolant mixed to local climate protection level; use Cat-approved corrosion inhibitor/coolant conditioner on this era of engine (pre-ELC). |
| Fuel tank | approx. 116 L (30.7 US gal) | No. 2-D diesel fuel (or equivalent); use winter-grade/blended fuel in cold climates to prevent waxing. |
| Transmission (powershift) and bevel gear/steering clutch compartment | not separately documented in accessible sources for this exact model; on this generation of small Cat track-type tractor the transmission and bevel-gear/steering-clutch housings are typically filled from a common check point and share one power-train sump — verify against the OMM capacity chart or dealer literature for an exact figure | Cat powershift transmission/torque-drive oil to the Cat TO-2 specification (TO-4 is the modern equivalent/replacement); viscosity graded by ambient temperature, generally SAE 10W in cold conditions up to SAE 30 in hot conditions. |
| Final drives (each side) | approx. 8.3 L (2.2 US gal) reported as a combined/aggregate figure across sources — treat as a single-source-database number and confirm per-side split against the OMM before use; varies by configuration | Cat TO-2 specification gear/final-drive oil (TO-4 modern equivalent); viscosity graded by climate as with the power train. |
| Hydraulic system (implement/blade circuit) | approx. 70 L (18.5 US gal) | Cat TO-2 specification hydraulic/power-train-compatible oil for this era (modern equivalent marketed as Cat TDTO or HYDO-type fluid); grade by ambient temperature same as power train. |
| Pivot shaft / track roller frame | not documented in accessible sources for the D4B specifically | Not documented — consult the OMM lubrication chart for this component; on comparable small Cat dozers of the era it takes the same TO-2-spec oil as the power train, but this is unconfirmed for the D4B. |
| Grease (chassis lubrication points) | not applicable (grease fitting service, not a fill-and-check reservoir) | Cat multipurpose grease (lithium-complex EP-type NLGI No. 2 general-purpose grease); typical points include track idler/roller pivots, blade lift and tilt linkage, and steering/brake linkage — service per the OMM lubrication schedule. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar D4B maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the D4B beyond the schedule
Predictive Maintenance & Fluid Analysis
Run oil sampling on the D4B's engine, powershift transmission, and hydraulic system since none carry ECM-based condition monitoring. Watch hydraulic samples for water or metal that signal pump or blade-lift cylinder seal bypass, a known wear pattern on this machine. Check fuel samples for water and sediment given the tank vent and transfer-pump diaphragm's tendency to let contamination in. Track coolant condition closely since this era predates extended-life coolant, and monitor final drive oil for water intrusion after wet-ground or LGP work.
Corrective & Common Repairs
Fuel starvation is the D4B's most common complaint: check the tank vent, drain sediment, and inspect the fuel transfer pump diaphragm before condemning the injection pump. A powershift that drops into false neutral usually points to a weak charge pump once transmission oil is hot, not the clutch packs themselves. Slow or spongy blade lift traces to a worn gear pump, bypassing cylinder seals, or a stuck relief valve rather than the control valve. Steering clutch and brake bands need periodic manual adjustment since this dry-clutch design has no auto-adjust.
Overhaul & Rebuild Points
Sprockets wear fastest on the D4B's undercarriage, and ripper work accelerates roller, idler, and sprocket wear together, so plan undercarriage rebuilds around ripping hours, not just total hours. Steering clutch and brake bands eventually need relining once adjustment reaches its limit. The powershift's planetary clutch packs and torque converter warrant inspection at major overhaul, along with the single gear pump feeding the blade circuit. The ripper's hinge and parallelogram linkage, shared across the D3B/D4C/D5C family, wears at its pins and bushings and should be checked during any drivetrain teardown.
Seasonal & Environment Servicing
Cold starts on the D4B depend on battery condition and starting aids since the mechanical 3204 has no electronic cold-start assist. Drain the fuel tank and water separator more often in humid or freeze-thaw seasons to catch condensation before it triggers the tank's known fuel-starvation issue. Switch to LGP configuration on soft, wet, or swampy ground where the Standard blade's ground pressure digs in. Increase greasing on blade, ripper, and track linkage in dusty or muddy conditions since the single hydraulic pump circuit sees more cycling.
D4B common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 6V-2219 | Kit-Gasket | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D4B fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Coolant Temperature Gauge - Red/High Range | Engine coolant temperature gauge needle sits in the red warning zone, above normal operating range. | Low coolant level, clogged radiator core or screen, slipping or failed fan drive, or a thermostat stuck closed. | Idle the engine down, check coolant level and radiator core for debris, and inspect the fan drive and thermostat before resuming work. |
| Engine Oil Pressure Gauge - Low/No Reading | Oil pressure gauge reads below the normal band or drops to zero with the engine running. | Low engine oil level, worn oil pump, plugged suction screen, or a failed pressure sending unit. | Shut the engine down immediately, check oil level, and look for external leaks or a bad sending unit before restarting. |
| Torque Converter Oil Temperature Gauge - High | Powershift transmission/torque converter oil temperature gauge reads above the normal operating band. | Low transmission oil level, a plugged oil cooler, or sustained high-load converter stall (lugging against too much resistance). | Reduce load and let the converter cool at low idle, then check transmission oil level and inspect the cooler for restriction. |
| Ammeter - Discharge Reading | Charging-circuit ammeter needle shows discharge instead of charge while the engine is running. | Loose or broken alternator/fan belt, failed voltage regulator, worn brushes, or loose or corroded wiring. | Check belt condition and tension and inspect wiring connections, then test alternator output and regulator. |
| Air Cleaner Restriction Indicator | Intake restriction indicator shows the air filter has reached its service limit. | Dirty or clogged primary or secondary air filter element. | Service or replace the air filter element and reset the restriction indicator. |
| Transmission Oil Filter Bypass Indicator | Bypass indicator on the transmission oil filter housing shows the filter is restricted and oil is bypassing it unfiltered. | Clogged transmission oil filter element from extended service intervals or contaminated oil. | Replace the transmission oil filter element as soon as practical and recheck the indicator. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D4B attachments & work tools
Blades
Standard-gauge D4B carries an 8-ft (2.44 m) straight (S-type) dozing blade rated around 1.53 m3 (2.0 yd3), about 93 cm (36.6 in) tall, angling/tilting roughly 25 degrees either direction. The wide-track LGP version swaps to a wider, shorter blade near 3.11 m (10.2 ft) with about 1.68 m3 (2.2 yd3) capacity and a lower 82.8 cm (32.6 in) moldboard, trading dig depth for flotation on soft ground. Both blades hydraulically angle and tilt through the same lift/tilt cylinder group shared with the D3B/D3C/D4C/D5C small-dozer family; no true universal (U) blade or variable-power-angle-tilt (VPAT) moldboard is documented for this frame size, VPAT being reserved for larger, later dozer platforms.
Rippers
The commonly cross-listed ripper for this class is a single-cylinder, hinge/parallelogram-mounted multi-shank unit shared across D3B, D3C, D4B, D4C and D5C dozer frames (the same beam pattern is also cross-referenced to small track loaders of the era). It bolts to the rear frame and needs its own auxiliary hydraulic control valve, since the tractor's factory circuit is set up for blade service only. Dedicated single-shank ripper beams exist in the same product family but are marketed mainly toward larger dozer classes; published literature does not break out a distinct single-shank ripper weight or shank spacing specific to the D4B nameplate, so treat single- vs multi-shank choice as varying by supplier and job type.
Winches
No Cat-brand factory hydraulic PTO winch is documented for this small-dozer bracket; that factory option historically starts on larger dozer classes. Third-party cable/logging winches sized for the D1-D5 small-dozer group (a single winch model bracket covers this whole class) bolt to the rear frame or drawbar and are typically clutch- or engine-driven rather than tied into the blade's hydraulic circuit, making them a practical fit for the D4B in land-clearing or logging duty.
Drawbars/Counterweights
A rigid rear drawbar is standard fitment for towing and for mounting a rear ripper or winch. Bolt-on rear counterweight blocks are a common option across this small-dozer family to rebalance the machine when running a heavier front blade or a rear-mounted ripper/winch, though an exact counterweight mass specific to the D4B nameplate is not published; expect it to vary with the rear implement fitted.
Cab/ROPS Guarding
Factory configuration for this era is an open operator station or ROPS canopy rather than an enclosed cab. For forestry or waste-handling duty, screened guarding for the radiator/grille intake, belly/undercarriage guards, and an overhead FOPS-rated screen over the operator station are the typical additions used across this Cat small-dozer family; specific factory part offerings for the D4B nameplate itself are not separately documented, so guarding packages should be treated as varying by configuration and supplier rather than a fixed factory list.
Hydraulic Arrangement (Front/Rear Tools)
The D4B runs a single hydraulic gear pump feeding the blade lift/angle/tilt circuit, flowing around 55 L/min (14.6 gpm) against a relief setting near 172 bar (2500 psi) on the LGP version. There is no separate rear hydraulic supply built in from the factory for a ripper or winch; a rear-mounted ripper needs an auxiliary control valve added into or parallel to that same pump circuit, and rear winches on this class are typically mechanically (clutch/PTO) driven rather than hydraulically powered.
All D4B assemblies by section
Every catalogued assembly group for the Caterpillar D4B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
4n7914 Air Cleaner Gp
| 4N***14 | Air Cleaner Group | 1 |
4n0307 Air Cleaner Gp
| 4N***07 | Air Cleaner Group | 1 |
4n0312 Exhaust Extension Gp
| 4N***12 | Extension Group-Exhaust | 1 |
1w5054 Lines Gp-Air
| 1W***54 | Lines Group-Air; Air Lines Group | 1 |
7n4971 Manifold Gp-Exhaust
| 7N***71 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
7n4970 Muffler Gp
| 7N***70 | Muffler Group | 1 |
5m2735 Prescreener Gp
| 5M***35 | Prescreener Group; Prescreener Group----------------------. | 1 |
Basic Engine
6n2393 Camshaft Gp-Single
| 6N***93 | Camshaft Group-Single; Camshaft Group-Single | 1 |
2w7486 Cover Gp-Valve Mechanism
| 2W***86 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
7w3926 Crankshaft Gp
| 7W***26 | Crankshaft Group; Crankshaft Group | 1 |
1w4327 Cylinder Block As
| 1W***27 | Cylinder Block As | 1 |
2w7902 Cylinder Block As
1w4326 Cylinder Block Gp
| 1W***26 | Cylinder Block Group; Cylinder Block Group | 1 |
7c3805 Cylinder Head As*R
| 7C***05 | Cylinder Head As | 1 |
7c2320 Cylinder Head As-Service*R
| 7C***20 | Cylinder Head As | 1 |
7w9390 Cylinder Head As
| 7W***90 | Cylinder Head As | 1 |
7c2296 Cylinder Head As
| 7C***96 | Cylinder Head As | 1 |
6n2467 Cylinder Head Gp*R
| 6N***67 | Cylinder Head Group; Cylinder Head Group | 1 |
7w9392 Cylinder Head Gp*R
| 7W***92 | Cylinder Head Group | 1 |
7n5141 Drive Gp-Fan
| 7N***41 | Drive Group-Fan; Water Pump Drive Group | 1 |
7n6937 Flywheel Gp
| 7N***37 | Flywheel Group; Flywheel Group | 1 |
1w1355 Gear Gp-Front
| 1W***55 | Gear Group-Front; Front Gear Group | 1 |
7n6344 Housing Gp-Flywheel
| 7N***44 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
2w4384 Housing Gp-Front
| 2W***84 | Housing Group-Front; Front Housing Group | 1 |
1w5554 Lifting Gp-Engine
| 1W***54 | Lifting Group | 1 |
6n8370 Pan Gp-Oil
| 6N***70 | Pan Group-Oil; Oil Pan Group | 1 |
8n4079 Rod & Piston Gp-4 Required
| 8N***79 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
2w8419 Piston Gp
| 2W***19 | Piston Group | 1 |
7n5138 Pulley Gp-Crankshaft
| 7N***38 | Pulley Group-Crankshaft; Auxiliary Drive Pulley Group | 1 |
7c7743 Support Gp-Engine & Transmission
| 7C***43 | Support Group-Engine & Tmsn | 1 |
1w5720 Valve Mechanism Gp
| 1W***20 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Cab, Gauges And Accessories
8y4037 Seat Belt Gp
| 8Y***37 | Seat Belt Group | 1 |
7v9506 Seat Belt Gp
| 7V***06 | Seat Belt Group | 1 |
7v9507 Seat Belt Gp
| 7V***07 | Seat Belt Group | 1 |
6s9800 Cab Gp-Part 3 Of 4
| 6S***00 | Cab Group; Cab Group | 1 |
6s9800 Cab Gp-Part 4 Of 4
| 6S***00 | Cab Group; Cab Group | 1 |
6s9800 Cab Gp-Part 1 Of 4
| 6S***00 | Cab Group; Cab Group | 1 |
6s9800 Cab Gp-Part 2 Of 4
| 6S***00 | Cab Group; Cab Group | 1 |
5g1020 Dash Gp
| 5G***20 | Dash Group | 1 |
5g0190 Door Gp-L.H.-Part 1 Of 2
| 5G***90 | Door Group-Lh | 1 |
5g0190 Door Gp-L.H.-Part 2 Of 2
| 5G***90 | Door Group-Lh | 1 |
5g0200 Door Gp-R.H.-Part 2 Of 2
| 5G***00 | Door Group-Rh | 1 |
5g0200 Door Gp-R.H.-Part 1 Of 2
| 5G***00 | Door Group-Rh | 1 |
5g0142 Gauge Gp
| 5G***42 | Gauge Group | 1 |
5g2341 Gauge Gp-Hydraulic Oil Temperature
| 5G***41 | Gauge Group-Hydraulic Oil Temp; Hydraulic Oil Temperature Gauge Group | 1 |
5g0949 Guard Gp-Vandalism
| 5G***49 | Guard Group-Vandalism | 1 |
5g2988 Handle Gp-Assist
| 5G***88 | Handhold Group; Handle Group--Assist | 1 |
5g0537 Heater Gp-Cab
| 5G***37 | Heater Group-Cab; Cab Heater Group | 1 |
5g2002 Pressurizer Gp-Cab
| 5G***02 | Pressurizer Group; Cab Pressurizer Group | 1 |
5g2055 Pressurizer Gp-Part 2 Of 3
| 5G***55 | Pressurizer Group-Cab | 1 |
5g2055 Pressurizer Gp-Part 3 Of 3
| 5G***55 | Pressurizer Group-Cab | 1 |
5g2055 Pressurizer Gp-Part 1 Of 3
| 5G***55 | Pressurizer Group-Cab | 1 |
5g0001 Rollover Ar
| 5G***01 | Rops Ar; Rollover Ar | 1 |
| 5G***49 | Washer Group-Windshield; Windshield Washer Group | 1 |
| 5G***57 | Wiring Group-Cab; Cab Wiring Group | 1 |
5g0673 Rops Gp
| 5G***73 | Rops Group | 1 |
5g6171 Seat & Support Gp-Part 1 Of 2
| 5G***71 | Seat & Support Group | 1 |
5g1804 Seat & Support Gp
| 5G***04 | Seat & Support Group; Support And Seat Group | 1 |
8y1177 Seat & Support Gp
| 8Y***77 | Seat & Support Group | 1 |
5g6171 Seat & Support Gp-Part 2 Of 2
| 5G***71 | Seat & Support Group | 1 |
6s7596 Seat Gp-Part 1 Of 2
| 6S***96 | Seat Group | 1 |
5g2334 Seat Gp-Reversible
| 5G***34 | Seat Group; Reversible Seat Group | 1 |
6s7596 Seat Gp-Part 2 Of 2
| 6S***96 | Seat Group | 1 |
6s3626 Seat Gp-Suspension
| 6S***26 | Seat Group-Suspension; Suspension Seat Group------------------- | 1 |
2v7961 Suspension As-Seat
| 2V***61 | Suspension As-Seat | 1 |
5g0049 Washer Gp-Windshield
| 5G***49 | Washer Group-Windshield; Windshield Washer Group | 1 |
5g0974 Wiper Gp
| 5G***74 | Wiper Group; Wiper Group | 1 |
5g0457 Wiring Gp-Cab
| 5G***57 | Wiring Group-Cab; Cab Wiring Group | 1 |
Chassis And Undercarriage
3g3440 Frame Gp-Power Angling
| 3G***40 | C-Frame Group | 1 |
9w9579 Frame Gp-Power Angling
| 9W***79 | C-Frame Group | 1 |
6s9359 Cleaner Bar Gp-Track
| 6S***59 | Cleaner Bar Group | 1 |
5g0441 Counterweight Gp-Front
| 5G***41 | Counterweight Group-Front | 1 |
5g0779 Drawbar Gp
| 5G***79 | Drawbar Group; (Fixed) | 1 |
5g5317 Drawbar Gp-Swinging
| 5G***17 | Drawbar Group-Swinging | 1 |
5g4019 Enclosure Gp-Engine
| 5G***19 | Enclosure Group-Engine | 1 |
5g4328 Enclosure Gp-Engine
| 5G***28 | Enclosure Group-Engine | 1 |
5g0471 Firewall Gp
| 5G***71 | Firewall Group | 1 |
5g8709 Frame Gp-Tractor
| 5G***09 | Frame Group | 1 |
5g0380 Frame Gp-Track Roller
| 5G***80 | Frame Group-Track Roller | 1 |
5g5971 Frame Gp-Track Roller
| 5G***71 | Frame Group-Track Roller | 1 |
5g1185 Guard Gp-Bottom
| 5G***85 | Guard Group-Bottom | 1 |
5g2342 Guard Gp-Brush
| 5G***42 | Guard Group-Brush | 1 |
5g2327 Guard Gp-Brush
| 5G***27 | Guard Group-Brush | 1 |
5g0465 Guard Gp-Radiator
| 5G***65 | Guard Group-Radiator | 1 |
6s6166 Guard Gp-Hinged Radiator
| 6S***66 | Guard Group-Radiator Hinged; Radiator Hinger Guard Group | 1 |
6s8323 Guard Gp-Hinged Radiator
| 6S***23 | Guard Group-Radiator Hinged | 1 |
5g8703 Guard Gp-Recoil
| 5G***03 | Guard Group-Recoil Mechanism | 1 |
5g0381 Guard Gp-Recoil Mechanism
| 5G***81 | Guard Group-Recoil Mechanism | 1 |
5g4308 Hood & Guard Gp
| 5G***08 | Hood & Guard Group | 1 |
6s3864 Hook Gp-Front Pull
| 6S***64 | Hook Group-Front Pull | 1 |
5g8729 Idler Gp-Front-Part 2 Of 2
| 5G***29 | Idler Group-Front | 1 |
6s7272 Idler Gp-Front-Part 2 Of 2
| 6S***72 | Idler Group-Front | 1 |
5g8729 Idler Gp-Front-Part 1 Of 2
| 5G***29 | Idler Group-Front | 1 |
6s7272 Idler Gp-Front-Part 1 Of 2
| 6S***72 | Idler Group-Front | 1 |
6y1512 Link As-Track
| 6Y***12 | Link As-Track | 1 |
6s9067 Link As-Track
| 6S***67 | Link As-Track | 1 |
6y1340 Link As-Track
| 6Y***40 | Link As-Track | 1 |
6y1510 Link As-Track
| 6Y***10 | Link As-Track | 1 |
5g2294 Cab Gp-Mounting
| 5G***94 | Mounting Group-Cab | 1 |
5g0521 Mounting Gp-Rops
| 5G***21 | Mounting Group-Rops | 1 |
3t4353 Roller Gp-Double Flange-4 Required
| 3T***53 | Roller Group-Track; Double Flange Track Roller Group | 1 |
3t4352 Roller Gp-Single Flange-8 Required
| 3T***52 | Roller Group-Track; Single Flange Track Roller Group | 1 |
6s3609 Roller Gp-Track Carrier-2 Required
| 6S***09 | Roller Group-Track Carrier; Track Carrier Roller Group | 1 |
6y3882 Seal & Bushing Gp-Track
| 5G***47 | Stopper; (Rubber) | 37 |
| 6T***06 | Seal Assembly | 74 |
| 6Y***73 | Plug; (Clear) | 37 |
5g2987 Shield Gp-Heat
| 5G***87 | Shield Group-Heat; Shield Group--Heat | 1 |
5g0378 Support Gp-Undercarriage
| 5G***78 | Support Group-Undercarriage | 1 |
5g0379 Support Gp-Undercarriage
| 5G***79 | Support Group-Undercarriage | 1 |
5g3575 Suppression Gp
| 5G***75 | Suppression Group-Sound | 1 |
5g2236 Sweep Gp
| 5G***36 | Sweep Group | 1 |
6s9685 Track Gp
| 6S***85 | Track Group | 1 |
6y1679 Track Gp
| 4K***38 | Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In) | 76 |
| 5A***87 | Bolt-Track-( 9/16 X 18 X 3.0 In) | 76 |
| 6S***02 | Shoe-Master Lgp Track | 1 |
6s9094 Track Gp-2 Required
| 4K***38 | Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In) | 152 |
| 6S***24 | Shoe | 38 |
| 6S***59 | Shoe (Master) | 1 |
9w9440 Track Gp-2 Required
| 4K***38 | Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In) | 152 |
| 6S***17 | Shoe-Grouser Track | 38 |
| 6S***58 | Shoe-Grouser Track | 1 |
6s9093 Track Gp
| 6S***93 | Track Group | 1 |
6y1342 Track Gp-2 Required
| 4K***38 | Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In) | 76 |
| 5A***87 | Bolt-Track-( 9/16 X 18 X 3.0 In) | 76 |
| 6S***02 | Shoe-Master Lgp Track | 1 |
6y1674 Track Gp-2 Required
| 4K***38 | Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In) | 152 |
| 5A***87 | Bolt-Track-( 9/16 X 18 X 3.0 In) | 4 |
| 6Y***81 | Shoe-Track | 38 |
Cooling System
9n5659 Cooler Gp-Engine Oil
| 9N***59 | Cooler Group-Engine Oil | 1 |
7c7744 Cooler Gp-Engine Oil
| 7C***44 | Cooler Group-Engine Oil | 1 |
5g2765 Cooler Gp-Hydraulic
| 5G***65 | Cooler Group-Hydraulic Oil | 1 |
7n9989 Fan Gp-Blower
| 7N***89 | Fan Group-Blower | 1 |
4n2220 Fan Gp-Suction
| 4N***20 | Fan Group-Suction; Suction Fan Group | 1 |
6n9739 Heater Gp-Jacket Water (750 Watt, 120 Volt)
| 6N***39 | Heater Group-Jacket Water; Jacket Water Heater Group | 1 |
6n9125 Heater Gp-Jacket Water (750 Watt, 120 Volt)
| 6N***25 | Heater Group-Jacket Water | 1 |
5g1378 Lines Gp-Torque Converter Cooler
| 5G***78 | Lines Group-Torque Conv Cooler | 1 |
4n0188 Lines Gp-Water
| 4N***88 | Lines Group-Water; Water Lines Group | 1 |
4n0660 Pump Gp-Water
| 4N***60 | Pump Group-Water; Water Pump Group | 1 |
7c7740 Radiator Gp
| 7C***40 | Radiator Group | 1 |
7c7741 Radiator Gp
| 7C***41 | Radiator Group | 1 |
Engine Arrangement
7c7739 Engine Ar-Part 2 Of 2
| 1W***54 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
| 1W***54 | Lines Group-Air; Air Lines Group | 1 |
| 1W***54 | Lifting Group | 1 |
7c7739 Engine Ar-Part 1 Of 2
| 1N***24 | Filter Group-Oil; Oil Filter Group | 1 |
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
| 1W***55 | Gear Group-Front; Front Gear Group | 1 |
Fuel System And Governor
2w0262 Camshaft As
| 2W***62 | Camshaft As | 1 |
5g4866 Control Gp-Governor & Transmission
| 5G***66 | Control Group-Gov & Transmission | 1 |
6s8967 Control Gp-Governor
| 6S***67 | Control Group-Governor | 1 |
5g2499 Extension Gp-Fuel Filler
| 5G***99 | Extension Group | 1 |
1w6680 Filter Gp-Fuel
| 1W***80 | Filter Group-Fuel; Fuel Filter Group | 1 |
1w8730 Governor Gp-Part 2 Of 3
| 1W***30 | Governor Group | 1 |
1w8730 Governor Gp-Part 3 Of 3
| 1W***30 | Governor Group | 1 |
1w8730 Governor Gp-Part 1 Of 3
| 1W***30 | Governor Group | 1 |
5g4583 Lines Gp-Fuel
| 5G***83 | Lines Group-Fuel | 1 |
1w1354 Lines Gp-Fuel Injection
| 1W***54 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
7n0042 Lines Gp-Fuel Injection
| 7N***42 | Lines Group-Fuel Injection | 1 |
6s9980 Protection Gp-Vandalism
| 6S***80 | Protection Group-Vandalism | 1 |
2w0263 Pump Gp-Fuel Injection
| 2W***63 | Pump Group-Fuel Injection | 1 |
1w6539 Pump Gp-Fuel Injection
| 1W***39 | Pump Group-Fuel Injection | 1 |
4n4314 Pump Gp-Fuel Priming
| 4N***14 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
2w4403 Pump Gp-Fuel Transfer
| 2W***03 | Pump Group-Fuel Transfer; Fuel Transfer Pump Group | 1 |
1w0568 Pump Gp-Fuel Transfer
| 1W***68 | Pump Group-Fuel Transfer | 1 |
7w0189 Pump Gp-Governor & Fuel Injection
| 7W***89 | Pump Group-Gov & Fuel Inj; Governor & Fuel Injection Pump Group | 1 |
5g4581 Tank Gp-Fuel
| 5G***81 | Tank Group-Fuel | 1 |
4w5063 Torque Control Gp
| 4W***63 | Torque Control Group | 1 |
Hydraulic System
9j8698 Cylinder Gp-Angling-(Change 2)
| 9J***98 | Angling Cylinder Group; Angling Cylinder Group | 1 |
7j9223 Cylinder Gp-Lift-(Change 1)
| 7J***23 | Lift Cylinder Group | 1 |
9g9288 Cover Gp-Protection
| 9G***88 | Protection Cover Group; -Hydraulic Tank-Steering Tank Fill Cap-Hydraulic Tank Fill Cap | 1 |
9j8674 Cylinder Gp-Tilt-(Change 0)
| 9J***74 | Tilt Cylinder Group; Tilt Cylinder Group | 1 |
5g0333 Control Gp-Hydraulic Hand
| 5G***33 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper | 1 |
5g2223 Control Gp-Hydraulic Hand
| 5G***23 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
5g0571 Control Gp-Hydraulic Hand
| 5G***33 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper | 1 |
| 5G***71 | Control Group-Hydraulic Hand; Hydrualic Hand Control Group | 1 |
| 5G***23 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
5g2386 Control Gp-Hydraulic Hand
| 5G***86 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
5g0556 Control Gp-Hydraulic Hand
| 5G***56 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
| 5G***23 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
| 6S***54 | Film-Instruction; (Instruction) | 1 |
5g0561 Control Gp-Hydraulic Hand
| 5G***61 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
| 5G***23 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
| 5G***86 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
5g3446 Cylinder Gp-Slider Lock
| 5G***46 | Cylinder Group; Slider Lock Cylinder Group | 1 |
3g5767 Cylinder Gp-Boom-(Change 3)
| 3G***67 | Cylinder Group-Backhoe Boom | 1 |
3g5905 Cylinder Gp-Backhoe Bucket (Chg. 05)
| 3G***05 | Cylinder Group-Backhoe Bucket | 1 |
3g5905 Cylinder Gp-Bucket-(Change 2)
| 3G***05 | Cylinder Group-Backhoe Bucket | 1 |
1u2656 Cylinder Gp-Stabilizer-L.H.-(Change 0)
| 1U***56 | Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-L.H | 1 |
1u2655 Cylinder Gp-Stabilizer-R.H.-(Change 0)
| 1U***55 | Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-R.H | 1 |
3g5771 Cylinder Gp-Stick-(Change 1)
| 3G***71 | Cylinder Group-Backhoe Stick | 1 |
9t6652 Cylinder Gp-Lift
| 9T***52 | Cylinder Group-Lift | 1 |
7j9920 Cylinder Gp-Ripper-(Change 6)
| 7J***20 | Cylinder Group-Ripper | 1 |
3g6792 Cylinder Gp-Stabilizer-(Change 1)-2 Required
| 3G***92 | Cylinder Group-Stabilizer; Stabilizer Cylinder Group | 1 |
5g0553 Hydraulic Ar-2 Valve
| 5G***53 | Hydraulic Ar; Hydraulic Arrangement | 1 |
| 5G***55 | Valve Group-Control; Control Valve Group | 1 |
| 5G***56 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
5g0568 Hydraulic Ar-4 Valve
| 5G***43 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper | 1 |
| 5G***68 | Hydraulic Ar | 1 |
| 5G***70 | Valve Group-Control; Control Valve Group | 1 |
5g0558 Hydraulic Ar-3 Valve
| 5G***58 | Hydraulic Ar | 1 |
| 5G***60 | Valve Group-Control; Control Valve Group | 1 |
| 5G***61 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
5g2283 Lines Gp-Angling Cylinder-Part 2 Of 2
| 5G***83 | Lines Group-Angle Cylinder; Angling Cylinder Lines Group | 1 |
5g2283 Lines Gp-Angling Cylinder-Part 1 Of 2
| 5G***83 | Lines Group-Angle Cylinder; Angling Cylinder Lines Group | 1 |
9w9587 Lines Gp-Angle Cylinder
| 9W***87 | Lines Group-Angle Cylinder | 1 |
5g3669 Lines Gp-Boom Cylinder
| 5G***69 | Lines Group-Boom Cylinder; Room Cylinder Lines Group | 1 |
5g2612 Lines Gp-Boom Cylinder
| 5G***12 | Lines Group-Boom Cylinder; Boom Cylinder Lines Group | 1 |
5g3672 Lines Gp-Bucket Cylinder
| 5G***72 | Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group | 1 |
5g2619 Lines Gp-Bucket Cylinder
| 5G***19 | Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group | 1 |
5g5925 Lines Gp-Hydraulic
| 5G***25 | Lines Group-Hydraulic; Lines Gp-Hydraulic-1 Circuit | 1 |
5g1039 Lines Gp-Lift Cylinder
| 5G***39 | Lines Group-Lift Cylinder; Lines Group-Lift Cylinder | 1 |
5g2323 Lines Gp-Pump
| 5G***23 | Lines Group-Pump; Pump Lines Group | 1 |
5g0543 Lines Gp-Rear Attachment
| 5G***43 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper | 1 |
6s3559 Lines Gp-Ripper
| 6S***59 | Lines Group-Ripper; Ripper Lines Group | 1 |
5g2216 Lines Gp-Stabilizer
| 5G***16 | Lines Group-Stabilizer; Stabilizer Lines Group | 1 |
5g3682 Lines Gp-Stabilizer
| 5G***82 | Lines Group-Stabilizer; Lines Group-Stabilizer Cylinder | 1 |
5g2618 Lines Gp-Stick Cylinder
| 5G***18 | Lines Group-Stick; Stick Cylinder Lines Group | 1 |
5g3675 Lines Gp-Stick Cylinder
| 5G***75 | Lines Group-Stick; Stick Cylinder Lines Group | 1 |
5g2606 Lines Gp-Swing Actuator
| 5G***06 | Lines Group-Swing Actuator; Swing Actuator Lines Group | 1 |
5g3679 Lines Gp-Swing Actuator
| 5G***79 | Lines Group-Swing Actuator; Swing Actuator Lines Group | 1 |
5g2282 Lines Gp-Tilt Cylinder-Part 1 Of 2
| 5G***82 | Lines Group-Tilt Cylinder; Tilt Cylinder Lines Group | 1 |
5g2282 Lines Gp-Tilt Cylinder-Part 2 Of 2
| 5G***82 | Lines Group-Tilt Cylinder; Tilt Cylinder Lines Group | 1 |
5g8714 Lines Gp-Tilt Cylinder
| 5G***14 | Lines Group-Tilt Cylinder | 1 |
5g2491 Lock Gp-Hydraulic Control
| 5G***91 | Lock Group-Hydraulic Hand Control | 1 |
8j4513 Pump Gp-Gear
| 8J***13 | Pump Group-Gear | 1 |
3g5046 Pump Gp-Gear
| 3G***46 | Pump Group-Gear | 1 |
3g5385 Pump Gp-Gear
| 3G***85 | Pump Group-Gear | 1 |
8j4512 Pump Gp-Gear
| 8J***12 | Pump Group-Gear; Gear Pump Group-Single Section | 1 |
5g0099 Tank & Filter Gp-Hydraulic
| 5G***99 | Tank & Filter Group | 1 |
5g0013 Tank Gp-Hydraulic
| 5G***13 | Tank Group-Hydraulic | 1 |
5g3687 Valve & Lines Gp
| 5G***87 | Valve & Lines Group; Lines And Valves Group | 1 |
5g3692 Valve & Lines Gp
| 5G***92 | Valve & Lines Group; Lines And Valve Group--Sideshift Lock | 1 |
5g2582 Valve & Lines Gp
| 5G***82 | Valve & Lines Group; Valve And Lines Group | 1 |
3g0777 Valve Gp-Boom Control
| 3G***77 | Valve Group | 1 |
1u2576 Valve Gp-Check
| 1U***76 | Valve Group-Bank | 1 |
9j5822 Valve Gp-Bank 2
| 9J***22 | Valve Group-Bank 2 | 1 |
9j5823 Valve Gp-Bank 3
| 9J***23 | Valve Group-Bank 3 | 1 |
9j5825 Valve Gp-Bank 4
| 9J***25 | Valve Group-Bank 4 | 1 |
6s4767 Valve Gp-Breaker Relief
| 6S***67 | Valve Group-Breaker Relief | 1 |
8j9471 Valve Gp-Lift Cylinder Check
| 8J***71 | Valve Group-Check; -Lift Cylinder Circuit | 1 |
3g0778 Valve Gp-Control
| 3G***78 | Valve Group-Control; (Rh Stabilizer) | 1 |
9j0717 Valve Gp-Control
| 9J***17 | Valve Group-Control | 1 |
1u4630 Valve Gp-Swing Control
| 1U***30 | Valve Group-Control | 1 |
5g0555 Valve Gp-Control
| 5G***55 | Valve Group-Control; Control Valve Group | 1 |
5g0570 Valve Gp-Control
| 5G***70 | Valve Group-Control; Control Valve Group | 1 |
6s9822 Valve Gp-Control
| 6S***22 | Valve Group-Control | 1 |
9j0718 Valve Gp-Control
| 9J***18 | Valve Group-Control; (Tilt) | 1 |
5g0560 Valve Gp-Control
| 5G***60 | Valve Group-Control; Control Valve Group | 1 |
3g2887 Valve Gp-Diverter
| 3G***87 | Valve Group-Diverter; -Towing, Parking Brake Release | 1 |
9j0715 Valve Gp-Control
| 9J***15 | Valve Group-Lift Control | 1 |
9j0710 Valve Gp-Direct Operated Relief
| 9J***10 | Valve Group-Relief | 1 |
4t2591 Valve Gp-Pitch Relief
| 4T***91 | Valve Group-Relief; (Pressure) | 1 |
9j0797 Valve Gp-Pilot Operated Relief
| 9J***97 | Valve Group-Relief; (Pilot Operated) | 1 |
9j0723 Valve Gp-Pilot Operated Main Relief
| 9J***23 | Valve Group-Relief | 1 |
9j0798 Valve Gp-Pilot Operated Relief
| 9J***98 | Valve Group-Relief | 1 |
Implements
3g3353 Bit & Cutting Edge Gp
| 3G***53 | Bit And Cutting Edge Group | 1 |
5g0269 Mounting Gp-Trunnion
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
3y6885 Actuator Gp
| 3Y***85 | Actuator Group | 1 |
3y6884 Actuator Gp-Rotary
| 3Y***84 | Actuator Group-Rotary | 1 |
4t0412 Actuator Gp-Rotary
| 4T***12 | Actuator Group-Rotary | 1 |
5g2464 Actuator Gp-Swing
| 5G***64 | Actuator Group-Swing; Swing Actuator Group | 1 |
5g3761 Actuator Gp-Swing
| 5G***61 | Actuator Group-Swing; Swing Actuator Group | 1 |
5g2150 Backhoe Ar-Fixed Pivot
| 1U***55 | Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-R.H | 1 |
| 1U***56 | Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-L.H | 1 |
| 3G***67 | Cylinder Group-Backhoe Boom | 1 |
5g3690 Backhoe Ar-Sideshift
| 3G***67 | Cylinder Group-Backhoe Boom | 1 |
| 3G***71 | Cylinder Group-Backhoe Stick | 1 |
| 3G***05 | Cylinder Group-Backhoe Bucket | 1 |
9w9589 Blade Gp-Angling
| 9W***89 | Blade Group-Angling | 1 |
9w9580 Blade Gp-Angling
| 9W***80 | Blade Group-Angling | 1 |
5g2721 Boom Gp
| 5G***21 | Boom Group; Boom Group | 1 |
5g0888 Bucket Gp-Hoe
| 5G***88 | Bucket Group-Hoe | 1 |
5g0887 Bucket Gp-Hoe
| 5G***87 | Bucket Group-Hoe | 1 |
5g0886 Bucket Gp-Hoe
| 5G***86 | Bucket Group-Hoe | 1 |
5g0885 Bucket Gp-Hoe
| 5G***85 | Bucket Group-Hoe | 1 |
9w9581 Bulldozer Ar-Lower Angling & Tilt
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
| 5G***39 | Lines Group-Lift Cylinder; Lines Group-Lift Cylinder | 1 |
| 5G***14 | Lines Group-Tilt Cylinder | 1 |
9w9582 Bulldozer Ar
| 3G***40 | C-Frame Group | 1 |
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
| 5G***39 | Lines Group-Lift Cylinder; Lines Group-Lift Cylinder | 1 |
6y1467 Case & Covers Gp
| 6Y***67 | Case & Covers Group-Winch | 1 |
6y1906 Gear & Clutch Gp-Part 2 Of 2
| 6Y***06 | Clutch & Gear Group | 1 |
6y1906 Gear & Clutch Gp-Part 1 Of 2
| 6Y***06 | Clutch & Gear Group | 1 |
5g2543 Console Gp
| 5G***43 | Console Group; Backhoe Console Group | 1 |
5g3594 Console Gp-Backhoe
| 5G***94 | Console Group-Backhoe; Console Group-Backhoe | 1 |
5g2586 Control & Mounting Gp
| 5G***86 | Control & Mounting Group; Backhoe Mounting & Control Group | 1 |
5g2636 Control Gp-Towing Winch
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
5g4331 Control Gp-Towing Winch
| 5G***31 | Control Group-Winch; Control Gp-Towing Winch | 1 |
6y2216 Control Gp-Winch
| 6Y***16 | Control Group-Winch | 1 |
5g3938 Control Gp-Towing Winch
| 5G***38 | Control Group-Winch; Control Gp-Towing Winch | 1 |
6y2048 Control Gp-Winch
| 6Y***48 | Control Group-Winch | 1 |
6y2176 Conversion Ar-Winch
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 5 |
| 1A***83 | Bolt (4.75" Long-Location "B") | 2 |
| 3T***80 | Cover As | 1 |
6y2175 Conversion Ar-Winch
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 5 |
| 3T***80 | Cover As | 1 |
| 5G***38 | Control Group-Winch; Control Gp-Towing Winch | 1 |
6y1959 Conversion Gp-Winch
| 6Y***59 | Conversion Group-Winch | 1 |
6y2217 Conversion Gp-Winch
| 6Y***17 | Conversion Group-Winch | 1 |
7g9447 Covers Gp-Shipping
| 2M***80 | Seal--To Connector Pump Outlet | 1 |
| 3T***85 | Cover-Shipping; Shipping Cover | 1 |
| 7G***47 | Cover Group-Shipping; Shipping Cover Group | 1 |
5g2752 Drive Ar-Winch
| 5G***18 | Drive Group-Power Take-Off; Power Take-Off Drive Group | 1 |
| 5G***52 | Drive Ar-Winch | 1 |
| 5G***65 | Pump & Lines Group; Pump And Lines Group | 1 |
7g9470 Drive Gp-Winch
| 7G***70 | Drive Group-Winch | 1 |
8j7146 Cutting Edge Gp
| 8J***46 | Edge Group-Cutting | 1 |
5g2235 Frame Gp-Backhoe
| 5G***35 | Frame Group; Backhoe Frame Group | 1 |
5g3260 Frame Gp-Backhoe
| 5G***60 | Frame Group; Frame Group-Backhoe | 1 |
5g3443 Frame Gp-Sliding
| 5G***43 | Frame Group-Sliding; Sliding Frame Group | 1 |
5g2465 Frame Gp-Swing
| 5G***65 | Frame Group-Swing; Swing Frame Group | 1 |
6y2111 Lines Gp-Winch
| 6Y***11 | Lines Group-Winch | 1 |
5g2695 Linkage Gp-Bucket
| 5G***95 | Linkage Group-Bucket; Bucket Linkage Group | 1 |
6t2288 Manifold Gp
| 6T***88 | Manifold Group | 1 |
7g6800 Manifold Gp
| 7G***00 | Manifold Group | 1 |
5g2173 Mounting Ar-Backhoe
| 5G***73 | Mounting Ar-Backhoe | 1 |
| 5G***34 | Seat Group; Reversible Seat Group | 1 |
| 5G***41 | Gauge Group-Hydraulic Oil Temp; Hydraulic Oil Temperature Gauge Group | 1 |
6s6371 Mounting Gp-Backhoe
| 6S***71 | Mounting Group-Backhoe; Backhoe Mounting Group | 1 |
8j3294 Mounting Gp-Ripper
| 8J***94 | Mounting Group-Ripper; Ripper Mounting Group | 1 |
7g9423 Mounting Gp-Winch
| 7G***23 | Mounting Group-Winch | 1 |
6s7799 Pad Gp-Street
| 6S***99 | Pad Group-Street | 1 |
5g4320 Pad Gp-Street
| 5G***20 | Pad Group-Street | 1 |
5g2865 Pump & Lines Gp
| 5G***65 | Pump & Lines Group; Pump And Lines Group | 1 |
5g3774 Pump & Lines Gp
| 5G***74 | Pump & Lines Group | 1 |
1u0414 Pump Gp-Gear
| 1U***14 | Pump Group-Gear | 1 |
9j9005 Ripper Ar
| 6S***59 | Lines Group-Ripper; Ripper Lines Group | 1 |
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
| 7J***20 | Cylinder Group-Ripper | 1 |
8j3334 Ripper Gp
| 8J***34 | Ripper Group; Ripper Group | 1 |
3y6893 Shaft Gp
| 3Y***93 | Shaft Group | 1 |
3g4047 Sidecutter Gp
| 3G***47 | Sidecutter Group | 1 |
5g2979 Stabilizer Gp-2 Required
| 5G***79 | Stabilizer Group; Stabilizer Group | 1 |
5g2963 Step Gp
| 5G***63 | Step Group; Step Group | 1 |
5g2717 Stick Gp-Hoe
| 5G***17 | Stick Group-Hoe; Backhoe Stick Group | 1 |
8j5313 Tooth Gp
| 8J***13 | Tooth Group | 1 |
7g6861 Valve Gp
| 7G***61 | Valve Group | 1 |
6t2289 Valve Gp-Test
| 6T***89 | Valve Group | 1 |
6t2287 Valve Gp-Selector & Pressure Control
| 6T***87 | Valve Group-Selector & Press Cont | 1 |
7g6799 Valve Gp-Selector & Pressure Control
| 7G***99 | Valve Group-Selector & Press Cont | 1 |
6y2218 Winch Ar
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
| 5G***74 | Pump & Lines Group | 1 |
| 6Y***55 | Winch Ar-Towing | 1 |
6y2465 Winch Ar
| 5G***74 | Pump & Lines Group | 1 |
| 5G***31 | Control Group-Winch; Control Gp-Towing Winch | 1 |
| 6Y***55 | Winch Ar-Towing | 1 |
6y2055 Winch Ar-Towing
| 4B***58 | Screw (Identification Plate) Mounting | 4 |
| 6V***27 | Plate, Serial Number; On Left Hand Side Of Winch | 1 |
| 6V***46 | Film-Cat-Each Side | 1 |
Lubrication System
6n3382 Breather Gp
| 6N***82 | Breather Group; Breather Group | 1 |
1n3224 Filter Gp-Oil
| 1N***24 | Filter Group-Oil; Oil Filter Group | 1 |
7w0297 Fumes Disposal Gp
| 7W***97 | Fumes Disposal Group; Fumes Disposal Group | 1 |
1w0367 Gauge Gp-Oil Level
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
7w0332 Kit-Pcv Breather
| 7W***32 | Kit-Pcv Breather | 1 |
2w6697 Pump Gp-Oil
| 2W***97 | Pump Group-Oil-Without Housing | 1 |
Power Train-Power Transmission Unit
6y5504 Adapter Gp-Sprocket
| 6Y***04 | Adapter Group-Sprocket | 1 |
9p6238 Case & Parts Gp-Part 2 Of 2
| 9P***38 | Case & Parts Group-Planetary | 1 |
9p6238 Case & Parts Gp-Part 1 Of 2
| 9P***38 | Case & Parts Group-Planetary | 1 |
5g1060 Control Gp-Transmission-Part 2 Of 2
| 5G***60 | Control Group-Transmission | 1 |
5g1060 Control Gp-Transmission-Part 1 Of 2
| 5G***60 | Control Group-Transmission | 1 |
9w9496 Control Gp-Transmission Hydraulic
| 9W***96 | Control Group-Transmission Hydraulic; Control Gp-Transmission Hydraulic | 1 |
9p7244 Covers Gp-Shipping
| 9P***44 | Cover Group-Shipping; (Storage) | 1 |
5g1818 Drive Gp-Power Take-Off
| 5G***18 | Drive Group-Power Take-Off; Power Take-Off Drive Group | 1 |
9p4540 Drive Gp-Pump
| 9P***40 | Drive Group-Pump | 1 |
5g1239 Filler Gp-Powertrain Oil
| 5G***39 | Filler Group-Power Train Oil | 1 |
9p6277 Filter Gp-Transmission
| 9P***77 | Filter Group-Transmission; -Transmission | 1 |
5g8727 Final Drive Gp
| 5G***27 | Final Drive Group | 1 |
5g9400 Final Drive Gp
| 5G***00 | Final Drive Group | 1 |
9w9485 Transfer Case & Gear Gp
| 9W***85 | Gear & Case Group-Transfer | 1 |
5g8713 Gear Gp-Bevel
| 5G***13 | Gear Group-Bevel | 1 |
5g0905 Lines Gp-Powertrain Oil
| 5G***05 | Lines Group-Power Train Oil | 1 |
9w9486 Planetary Gp-Transmission-Part 2 Of 2
| 9W***86 | Planetary Group | 1 |
9w9486 Planetary Gp-Transmission-Part 1 Of 2
| 9W***86 | Planetary Group | 1 |
8y1300 Pump & Lines Gp
| 00***73 | Elbow, Each Including: | 2 |
| 2M***80 | Seal--To Connector Pump Outlet | 2 |
| 5G***70 | Pump & Lines Group | 1 |
5g4570 Pump & Lines Gp-Part 2 Of 2
| 5G***70 | Pump & Lines Group | 1 |
5g4570 Pump & Lines Gp-Part 1 Of 2
| 5G***70 | Pump & Lines Group | 1 |
9p7240 Pump Gp-Gear
| 9P***40 | Pump Group-Gear | 1 |
9p7239 Pump Gp-Gear
| 9P***39 | Pump Group-Gear | 1 |
4t0383 Pump Gp-Piston
| 4T***83 | Pump Group-Piston | 1 |
6y2047 Segment Gp-Sprocket
| 6Y***47 | Segment Group-Sprocket | 1 |
5t8739 Spider & Bearing Gp
| 5T***39 | Spider & Bearing Group | 1 |
1t1390 Torque Converter Gp
| 1T***90 | Torque Converter Group | 1 |
1t1786 Torque Converter Gp
| 1T***86 | Torque Converter Group | 1 |
9w9484 Transmission Ar
| 1T***90 | Torque Converter Group | 1 |
| 6V***18 | Planetary Transmission | 0 |
| 6V***19 | Kit-Gasket; (Transmission Filter) | 0 |
9w9483 Transmission Ar
| 1T***86 | Torque Converter Group | 1 |
| 6V***18 | Planetary Transmission | 0 |
| 6V***19 | Kit-Gasket; (Transmission Filter) | 0 |
5g1823 Universal Joint Gp
| 5G***23 | Universal Joint Group | 1 |
9w9495 Valve Gp
| 9W***95 | Valve Group | 1 |
9w9494 Valve Gp-Selector & Pressure Control
| 9W***94 | Valve Group-Selector & Press Cont | 1 |
9t1074 Valve Gp-Servo
| 9T***74 | Valve Group-Servo | 1 |
Service Equipment And Supplies
8f9866 Grease Gun As
| 8F***66 | Grease Gun As | 1 |
3p2244 Tool Gp-Hand
| 3P***44 | Hand Tool Group | 1 |
Name Plates & Films
| 3N***90 | Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine | 1 |
| 4B***58 | Screw (Identification Plate) Mounting | 2 |
| 5P***07 | Film-Hydraulic System (Caution)(Backhoe) | 1 |
Starting And Electrical System
1w4263 Alternator Gp
| 1W***63 | Alternator Group-Charging | 1 |
8n2268 Alternator Gp
| 8N***68 | Alternator Group-Charging | 1 |
7n4784 Alternator Gp
| 7N***84 | Alternator Group-Charging | 1 |
8n2822 Alternator Gp
| 6V***78 | Nut; (10-32-Thd) | 2 |
| 8F***34 | Lockwasher; (External Teeth) | 2 |
| 8N***68 | Alternator Group-Charging | 1 |
5g0237 Battery & Wiring Gp-Part 2 Of 3
| 5G***37 | Battery & Wiring Group | 1 |
5g0237 Battery & Wiring Gp-Part 3 Of 3
| 5G***37 | Battery & Wiring Group | 1 |
5g0237 Battery & Wiring Gp-Part 1 Of 3
| 5G***37 | Battery & Wiring Group | 1 |
6s3548 Battery Gp-Heavy Duty
| 6S***48 | Battery Group | 1 |
8y1223 Cover Gp-Rear
| 8Y***23 | Cover Group-Rear | 1 |
5g1812 Horn Gp-Electric
| 5G***12 | Horn Group-Electric | 1 |
5g1720 Lighting Gp
| 5G***20 | Lighting Group | 1 |
5g2541 Starting Aid Gp-Ether
| 5G***41 | Starting Aid Group-Ether | 1 |
4n0241 Starting Motor Gp-Electric
| 4N***41 | Starting Motor Group-Electric | 1 |
4n0190 Starting Motor Gp-Electric
| 4N***90 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
9g5517 Switch As
| 9G***17 | Switch As | 1 |
8n0410 Switch Gp
| 8N***10 | Switch Group; (Magnetic) | 1 |
5g1678 Warning Gp-Back-Up
| 5G***78 | Warning Group-Backup | 1 |
Steering Clutches And Brakes
5g8728 Brake Gp-Steering-Part 2 Of 3
| 5G***28 | Brake Group-Steering | 1 |
8y1087 Brake Gp-Steering-Part 2 Of 3
| 8Y***87 | Brake Group-Steering | 1 |
8y1087 Brake Gp-Steering-Part 1 Of 3
| 8Y***87 | Brake Group-Steering | 1 |
5g8728 Brake Gp-Steering-Part 3 Of 3
| 5G***28 | Brake Group-Steering | 1 |
5g8728 Brake Gp-Steering-Part 1 Of 3
| 5G***28 | Brake Group-Steering | 1 |
8y1087 Brake Gp-Steering-Part 3 Of 3
| 8Y***87 | Brake Group-Steering | 1 |
5g6103 Case Gp-Steering Clutch
| 5G***03 | Case Group-Steering Clutch | 1 |
5g8725 Clutch Gp-Steering
| 5G***25 | Clutch Group-Steering; Clutch Gp-Steering Brake | 1 |
5g4867 Control Gp-Steering & Decelerator-Part 1 Of 2
| 5G***67 | Control Group-Steer & Decelerator | 1 |
5g4867 Control Gp-Steering & Decelerator-Part 2 Of 2
| 5G***67 | Control Group-Steer & Decelerator | 1 |
5g4868 Control Gp-Steering & Decelerator-Part 2 Of 2
| 5G***68 | Control Group-Steer & Decelerator | 1 |
5g4868 Control Gp-Steering & Decelerator-Part 1 Of 2
| 5G***68 | Control Group-Steer & Decelerator | 1 |
5g8726 Control Gp-Steering-Part 1 Of 2
| 5G***26 | Control Group-Steering | 1 |
5g8726 Control Gp-Steering-Part 2 Of 2
| 5G***26 | Control Group-Steering | 1 |
5g8120 Valve Gp-Control
| 5G***20 | Valve Group; (Lh Control) | 1 |
5g8121 Valve Gp-Control
| 5G***21 | Valve Group; (Right Steer. | 1 |
D4B serial number reference
The D4B serial plate is riveted to the upper rear face of the steering clutch case, behind the final drives; if the tag is missing, the number is also stamped into the housing itself. The PIN reads as a 3-character prefix followed by a sequential unit number (e.g. 2XF00313) - the prefix ties the machine to its production series and build plant, and the trailing digits count the individual unit within that series. Always read and quote the full PIN, not just the prefix, when ordering parts or looking up a machine's build date.
| Prefix | Identifies | Notes |
|---|---|---|
| 2XF | D4B (Std) | Ties to model year 1987-1988, built at the Japan joint-venture plant (Shin Caterpillar Mitsubishi). Std (non-LGP) configuration, Cat 3204 4-cylinder diesel rated about 81 gross hp (60 kW), power shift transmission with 3 speeds forward/reverse. Total run was small, well under 1,000 units worldwide, which is why parts and manual listings for this prefix are scarce. |
| 45V | D4B | Seen on a higher-hour unit (fleet history to roughly 8,750 hours) tagged to the D4B model line. Std vs LGP configuration is not independently confirmed for this prefix - confirm with dealer using the full PIN before ordering configuration-specific parts (blade, track gauge). |
Frequently asked questions
What engine does the Caterpillar D4B use?
The D4B runs the Cat 3204, a 4-cylinder naturally aspirated diesel rated about 60.4 kW (81 hp) gross and 55.9 kW (75 hp) net at 2400 rpm. It uses a mechanical fuel system with no ECM and no diagnostic connector.
What is the operating weight of the Caterpillar D4B?
Operating weight runs about 7,449 kg (16,422 lb) in Standard configuration, rising to roughly 7,800 kg (17,195 lb) in Low Ground Pressure (LGP) trim. Exact weight varies with blade, ripper, and other attachments fitted.
What replaced the Caterpillar D4B?
The D4C succeeded the D4B, followed by the D4C Series II and D4C Series III as Caterpillar refined the same compact-dozer platform. This lineage is separate from the larger classic D4/D4D/D4E/D4H dozers, which only share the "D4" name and sit in a much heavier weight class.
What D4B owners discuss
What's the general reputation of the D4B's engine among mechanics and owners?
The D4B runs the naturally aspirated Cat 3204, a four-cylinder direct-injection diesel in the roughly 55-60 kW (75-81 hp) gross class. Mechanics who've rebuilt several of these report the block responds well to a proper overhaul: bore and sleeve it correctly, use aftermarket three-ring pistons rather than factory pistons, and replace the oil pump and cooler while it's apart. Left to run hot or low on oil, the same block has a reputation for loose cylinder bores and burned rod bearings, and worn examples have turned up with dropped valves or seized bores. Community consensus is that the 3204 isn't fragile, but it punishes deferred maintenance and low-oil running harder than most Cat engines its size.
The dozer runs fine for a while then loses power or dies. What's the usual cause?
Owners of older D4B machines describe a recurring pattern: the engine runs for roughly 20 minutes then starves for fuel and stalls. The troubleshooting chain the community works through, in order: tank vent (a blocked vent creates vacuum that stops fuel draw as the tank level drops), water or sediment in the tank, the suction line and screen, then the fuel transfer pump itself. A worn transfer pump diaphragm or a plugged suction screen produces the same symptom, so a practical test is pulling the suction line right after the engine dies to check whether the pump is still trying to draw, backed up with a vacuum gauge ahead of the pump and a low-pressure gauge after it. That isolates the pump from the supply side before parts get swapped unnecessarily.
What causes the powershift transmission to slip into false neutral or lose drive?
This behavior shows up across the whole small-frame powershift family the D4B shares its transmission design with, not just this one nameplate. A weak charge pump is the usual suspect: it can still build enough pressure to hold a gear when the oil is cold and thick, then falls short once the oil is hot and thin, so a gear intermittently drops out (false neutral). Worn rod ends or bushings in the forward/reverse control linkage cause a similar symptom mechanically rather than hydraulically. Wrong fluid is another common cause: running engine oil or the wrong gear oil in the transmission robs the clutch discs of friction and shows up as slipping, sometimes within as little as 50-60 hours if the discs delaminate from water contamination. Community advice is to keep the transmission filter on a fixed change interval rather than stretch it, since dirty oil accelerates every failure mode above.
Why does the blade get sluggish to lift or won't hold position?
As these hydraulic systems age, the community points to three usual suspects, roughly in order of likelihood: a worn hydraulic pump that can't maintain flow once the oil is hot and thin, leaking piston seals inside the lift cylinder that let oil bypass instead of moving the ram, and a main relief valve that's stuck or worn enough that the system never reaches full working pressure. A clogged filter or restricted suction screen causes the same slow, weak-feeling lift by starving the pump. Confirm with an actual flow and pressure test rather than guessing between pump and cylinder, since the fix and the cost differ a lot depending on which one is at fault.
What wear patterns show up in the undercarriage and steering system on a D4B?
Sprockets wear fastest of any undercarriage component on this class of dozer; teeth going pointed or hooked instead of staying round is the tell-tale sign. Work that loads the rear of the machine, such as ripping or drawbar pulling, accelerates roller, idler, and sprocket wear well beyond what straight dozing causes, and running the track too tight adds extra bushing wear inside the sprocket. On the steering side, the D4B uses dry steering clutches with external brake bands, a design shared with its smaller D3-family stablemates, and both need periodic manual adjustment as the linings wear. A clutch that keeps losing its adjustment quickly, or a pedal that doesn't fully release before the brake grabs, points to bands or linkage due for service rather than a one-time tweak. Have your dealer verify steering clutch and brake adjustment before returning the machine to work.
What electrical or cold-start issues come up on the D4B?
The D4B predates onboard electronics, so there's no ECM or sensor network to chase. The electrical side is limited to a starter, a charging unit, gauges and senders, and on many examples a glow plug or ether-assisted cold-start aid for the naturally aspirated 3204. Reported issues center on corroded battery cables, ground straps, and charging-circuit connections cutting output, and on cold-start circuits where the dash indicator lights up without actually delivering current or ether to the intake, which reads like a hard-starting engine when the real fault is wiring or a relay. Community advice is to check voltage directly at the glow plug bus bar (or continuity through the ether solenoid circuit) during cranking rather than trust the dash light alone.
What should I check before buying a used D4B?
Ask how the hours were accumulated and whether any maintenance records exist; a lower-hour machine run in short, hard bursts without regular service can be in worse shape than a higher-hour machine that was maintained consistently. Get an undercarriage wear percentage instead of judging by hours alone, since thinning or uneven wear along the track rails signals significant money ahead. Check the 3204 for blowby and oil condition, and ask directly whether the engine has been rebuilt and how many hours are on that rebuild. Cycle the blade through full lift and tilt to check for slow or weak hydraulics, and run the powershift through every gear both cold and after it's warmed up, since a false-neutral condition can hide while the oil is cold. Push the steering clutch pedals and brakes to confirm each releases and holds cleanly. Have your dealer verify steering clutch, brake, and hydraulic relief pressures before relying on the machine for production work.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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