Caterpillar D3B
Caterpillartrack-type tractor

Caterpillar D3B

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar D3B is a compact track-type tractor (small dozer) built from 1979 to 1987, sitting between the earlier D3 and the later D3C in Caterpillar's small-dozer lineup. It runs a naturally aspirated Cat 3204 four-cylinder diesel rated around 48.5 kW (65 hp) at 2400 rpm, displacing 5.2 L (318 cu in) with direct injection. A low-volume Special Application LGP variant (2PC serial prefix) used a turbocharged 3204 DI rated near 82 DBHP for swamp and soft-ground work. Operating weight runs 6,876-7,637 kg (15,161-16,837 lb) depending on configuration. Two main configurations were offered: Standard, with a 2.44 m (8 ft) S-blade, and LGP (Low Ground Pressure), with a wider 2.8 m (9.2 ft) blade and 635 mm (25 in) track shoes for reduced ground pressure. The D3B followed the D3 and was itself replaced by the D3C starting in 1987.

Steering and drive layout changed across the D3B's production run. Early machines (3YC and 5MC serial prefixes) used a direct-drive transmission with lever-operated steering clutches and brakes. Later machines (23Y, 24Y, 27Y, and 28Y prefixes) switched to a power-shift transmission with pedal-operated differential steering, an easier-to-operate layout closer to Caterpillar's larger dozers of the era. The 3204 engine and general chassis architecture carried through both layouts. In today's used and parts market, the D3B still works as an entry-level dozer for grading, land-clearing, and utility jobs where a compact footprint matters. Its pre-electronic design, no ECM, no diagnostic codes, just gauges and warning lights, keeps it simple to diagnose and field-repair, and it shares major driveline components with the D3 and the 931B track-type loader. Resale and parts values track undercarriage condition and steering clutch/brake wear more than any other factor, since those wear fastest and cost the most to restore.

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 D3B specifications

Engine

Engine modelCat 3204, 4-cylinder inline diesel, direct injection, naturally aspirated
Displacement5.2 L (317-318 cu in)
Bore x stroke114 mm x 127 mm (4.50 in x 5.00 in)
Net power48.5 kW (65 hp) @ 2400 rpm; the LGP configuration is documented at 48 kW (64.4 hp) gross in some references — treat as the same base engine, minor rating-basis variance.
EmissionsPre-emissions-regulation era engine (produced 1979-1987); no EPA/EU tier rating documented
Electrical system12V, approx. 40A alternator

Weights

Operating weight, Standardapprox. 6,876 kg (15,161 lb) with blade, ROPS cab
Operating weight, LGPapprox. 7,636 kg (16,837 lb) with blade, wide track
Weight noteBare/base tractor weight (without blade or with minimal equipment) runs lower, near 5,125 kg (11,300 lb) per configuration. An outlier operating weight near 20,640 lb (9,362 kg) for Standard also appears in circulation but does not match the convergence around 15,161 lb — treat it as a likely data error.

Dimensions

Length with blade, Standard3.69 m (12 ft 1 in)
Length without blade, Standard2.77 m (9 ft 1 in)
Length with blade, LGP4.02 m (13 ft 2 in)
Length without blade, LGP2.98 m (9 ft 9 in)
Width over tracks, Standard1.78-1.80 m (5 ft 10 in - 5 ft 11 in)
Width over tracks, LGP2.29-2.32 m (7 ft 6 in - 7 ft 7 in)
Height to top of cab2.67-2.68 m (8 ft 9 in - 8 ft 10 in), both configurations
Ground clearance, Standard0.31 m (1 ft)
Ground clearance, LGP0.29-0.30 m (0.96-1.0 ft)
Track gauge, Standard1.42 m (4 ft 8 in)
Track gauge, LGP1.68 m (5 ft 6 in)
Track shoe width, Standard305 mm (12 in)
Track shoe width, LGP635 mm (25 in)
Length of track on ground, Standard1.83 m (6 ft)
Length of track on ground, LGP2.06 m (6 ft 9 in)

Performance

Travel speed forward, Standard10.6-10.9 km/h (6.6-6.8 mph), 3-speed planetary powershift
Travel speed reverse, Standard11.4-11.5 km/h (7.1 mph)
Travel speed forward, LGP10.1 km/h (6.3 mph)
Travel speed reverse, LGP10.8 km/h (6.7 mph)
TransmissionPlanetary powershift, 3 forward / 3 reverse gears, both configurations
Ground pressure, Standardapprox. 6.3 psi (43 kPa) on 12 in shoes
Ground pressure, LGPapprox. 4.2-4.3 psi (29-30 kPa) on 25 in shoes
Ground contact area, Standardapprox. 1.11 sq m (1,720 sq in)
Ground contact area, LGPapprox. 2.61 sq m (4,046 sq in)
Drawbar pullNot published in available specification sheets for this model class — consult the factory Specalog or your dealer for pull-chart data.
GradeabilityNot documented in available specification sources

Blades

Standard (S) blade width2.44 m (8 ft), Standard undercarriage configuration
Standard (S) blade height0.84 m (33.1 in)
Standard (S) blade capacity1.3 cu m (1.7 cu yd)
Standard (S) blade angle25 degrees, both directions
Standard (S) blade max cutting depth374 mm (14.7 in)
LGP blade width2.80-2.84 m (9.2 ft), wide blade matched to LGP undercarriage
Blade noteFactory brochures reference an LGP-S (low ground pressure, S-blade) variant alongside plain LGP. Angle and universal blade options are offered across the wider D3-family line, but exact D3B-specific dimensions for those blade types are not documented — verify with your dealer.

Service Capacities

Fuel tank114 L (30.2 US gal)
Cooling system20 L (5.3 US gal)
Engine oil (with filter)12 L (3.2 US gal)
Hydraulic system, Standard70 L (18.5 US gal)
Hydraulic system, LGP84 L (22.2 US gal), higher than the Standard-configuration figure — verify against dealer literature for the exact configuration.
Final drives (each side)approx. 8 L (2.1-2.2 US gal)
Hydraulic relief pressure17,237 kPa (2,500 psi)
Hydraulic pump flow55 L/min (14.5-14.6 US gpm)

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

D3B fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)approx. 12 L (3.2 US gal / 2.7 Imp gal) engine oil and filter refillCat DEO (Diesel Engine Oil), API CD-level diesel engine oil. SAE 30 single-grade for ambient 20 to 120°F (-7 to 49°C); use a lighter grade (10W or 10W-30) below 20°F (-7°C).
Cooling systemapprox. 20 L (5.3 US gal / 4.4 Imp gal)Ethylene-glycol heavy-duty antifreeze/coolant with a cooling-system corrosion inhibitor (supplemental coolant additive), mixed to the ratio suited to the expected ambient temperature.
Fuel tankapprox. 114 L (30.2 US gal / 25.1 Imp gal)No. 2-D diesel fuel; switch to No. 1-D diesel fuel in cold weather for easier starting and to reduce fuel waxing.
Powershift transmissionreported as approx. 19 L (5 US gal) or 26.5 L (7 US gal), depending on transmission build/production run - varies by configuration; confirm against the specific machine's transmission before fillingCat TDTO (Transmission/Drive Train Oil), TO-4 spec. SAE 30 single-grade is the typical viscosity called out for this era of powershift transmission.
Bevel gear / steering clutch compartmentapprox. 15 L (4 US gal)Cat TDTO, TO-4 spec, SAE 30. Some period references note CD-spec diesel engine oil was historically an acceptable fill here as well.
Final drives (each side)approx. 8 L (2.2 US gal); confirm whether this is per side or a combined figure against the OMM for your serial range.Cat TDTO, TO-4 spec, SAE 30.
Hydraulic system/tankapprox. 70 L (18.5 US gal) total system fill; system runs around 17 200 kPa (2500 psi) with pump flow near 55 L/min (14.5 US gpm)Cat HYDO preferred for ambient -20 to 40°C (-4 to 104°F). If HYDO is not on hand, Cat diesel engine oil, Cat TDTO, or Cat Multipurpose Tractor Oil (MTO) are accepted alternatives.
Pivot shaftnot called out as a separately serviced fill point for this model.not separately documented — check the OMM lubrication chart for this serial range before servicing.
Grease (track rollers, idlers, pins/bushings, blade and linkage pivots)applied fitting by fitting on the lubrication interval; no bulk reservoir
Grease (track rollers, idlers, pins/bushings, blade and linkage pivots) - recommended fluidn/aCat Multipurpose Grease, NLGI 2, general service range approx -30 to 40°C (-22 to 104°F). A softer NLGI 1 or 0 grease may be called for in extreme cold per dealer guidance.

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

Caterpillar D3B maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and top off before starting; the naturally aspirated 3204 has no low-oil shutdown.
  • Check coolant level at the recovery bottle and inspect hoses and the radiator core for leaks.
  • Drain water and sediment from the fuel tank sump and check the fuel transfer pump screen for restriction.
  • Walk around the machine and check for hydraulic, engine, and final-drive oil leaks.
  • Weekly: grease steering clutch/brake linkage pins, equalizer bar, and blade lift/tilt cylinder pins.
  • Weekly: check track sag (about 80 mm / 3 in combined idler-to-carrier-roller and carrier-roller-to-sprocket sag) and inspect shoes and grousers for wear or bent plates.
Every 250 h
  • Change engine oil and filter on the 3204.
  • Replace the primary fuel filter element and clean the fuel tank cap and vent.
  • Check and adjust fan belt tension.
  • Service the air cleaner element, cleaning or replacing it based on condition.
  • Check battery electrolyte level and clean the terminals.
Every 500 h
  • Check the bevel-gear/steering-clutch case oil level on direct-drive units (3YC/5MC) or the power-shift transmission oil level on 23Y/24Y/27Y/28Y units.
  • Check final drive oil level on both sides.
  • Sample engine, hydraulic, and power-train oil for wear metal and condition.
  • Lubricate equalizer bar bushings, the pivot shaft, and blade linkage pins.
  • Clean the crankcase breather.
  • Check coolant condition and corrosion-inhibitor level.
Every 1,000 h
  • Change power-train oil: bevel-gear/steering-clutch case oil on direct-drive units, transmission and torque-divider oil on power-shift units.
  • Adjust valve lash on the 3204 engine.
  • Change the hydraulic tank oil filter and inspect hydraulic oil condition.
  • Check and adjust fuel injection timing.
  • Pressure-test the cooling system and clean the radiator core.
Every 2,000 h
  • Change hydraulic system oil.
  • Flush and refill engine coolant.
  • Inspect and adjust the steering clutch and brake bands to spec; this same band assembly also serves as the service brake.
  • Inspect undercarriage wear on rollers, idlers, sprockets, and track bushings against wear-gauge limits.
  • On the turbocharged Special Application 3204 (2PC prefix), inspect the turbocharger for shaft play and boost leaks.
Every 4,000 h
  • Reline or replace steering clutch and brake bands at the wear limit; this is safety-critical since the same assembly is the service brake.
  • Rebuild or replace idlers, rollers, and sprockets flagged by prior wear-gauge readings.
  • Inspect and rebuild final drive bearings and seals.
  • Evaluate the track chain and bushings for a turn or full replacement.
Every 6,000 h
  • Evaluate the 3204 block for an inframe overhaul; because this engine has no separate cylinder liners, bore wear beyond limits calls for a full block rebuild or replacement rather than a liner-and-piston kit.
  • Rebuild power-shift transmission clutch packs and the torque divider on 23Y/24Y/27Y/28Y units, or overhaul the bevel-gear steering clutch assembly on 3YC/5MC direct-drive units.
  • Reseal the hydraulic pump and the lift, tilt, and angle cylinders.
  • Complete a full undercarriage rebuild or track replacement once wear limits are reached.

Servicing the D3B beyond the schedule

Predictive Maintenance & Fluid Analysis

Because the 3204 block has no separate cylinder liners, bore wear shows up directly in oil-sample wear-metal counts, making regular engine oil analysis the earliest warning of an approaching rebuild. Pull fuel, hydraulic, and power-train oil samples on the same interval and watch for water or fuel dilution, a common sign of a clogged fuel transfer pump screen. Track wear-gauge readings on rollers, idlers, and sprockets over time to predict undercarriage replacement before a shoe or bushing fails in the field.

Corrective & Common Repairs

The most common D3B complaint is hard starting or power loss traced to a clogged fuel transfer pump screen; clean or replace it before chasing injectors. Steering clutch and brake band adjustment doubles as service-brake adjustment on this machine, so slipping, dragging, or long pedal travel is a safety issue, not just a steering complaint. Blade drift or slow lift usually traces to a worn main relief valve, control valve spool, or tired lift-cylinder seals. Charging and starting issues are usually alternator, regulator, or battery-cable faults on this pre-electronic circuit.

Overhaul & Rebuild Points

Undercarriage condition drives D3B resale value most; budget for roller, idler, sprocket, and bushing replacement once wear-gauge limits are reached. Because the 3204 has no separate liners, a worn block generally means a full inframe rebuild or block replacement rather than a simple sleeve-and-ring job. Steering clutch and brake bands wear together and should be relined as a set, since a weak band is both a steering fault and a brake fault. Power-shift units (23Y/24Y/27Y/28Y) need clutch-pack overhaul at high hours; direct-drive units (3YC/5MC) need bevel-gear steering-clutch service.

Seasonal & Environment Servicing

The naturally aspirated 3204 has no turbo boost for cold starts; cold weather work needs glow-plug or ether aids and a coolant mix rated for the lowest expected temperature. LGP models with wide 635 mm (25 in) shoes suit soft, wet, or swampy ground and clean mud from shoe webs after wet-season work; standard-shoe machines handle firmer ground better but sink in mud. In dusty summer conditions, shorten air-cleaner intervals and check the radiator core often; a partly blocked core raises operating temperature on an already modest cooling system.

D3B common service parts

Part numberPart
9L-9200Filter As-OilCheck fitment →
6V-2219Kit-GasketCheck fitment →

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

D3B fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
Engine oil pressure gauge – low or zero readingDash gauge shows insufficient lubrication pressure; this is an analog gauge reading, not a stored diagnostic codeLow oil level, worn oil pump, clogged filter, or diesel fuel diluting the crankcase oil from a leaking injection pump or worn injector sealsStop the engine immediately, check oil level and check for a fuel smell in the oil, inspect the oil pump and filter before restarting
Coolant temperature gauge – high / red zone readingDash gauge shows engine running above normal operating rangeLow coolant level, blocked radiator core or fins, loose or worn fan belt, worn water pumpReduce load and idle down, check coolant level and belt tension once safe to do so, clean radiator fins, inspect water pump for leakage or play
Charging indicator / ammeter – discharge readingGauge or indicator light shows the charging system is not maintaining battery voltageLoose or worn alternator belt, failed regulator, worn alternator brushes, corroded battery cable or ground connectionsCheck belt tension and wiring, clean and tighten battery terminals, bench test the alternator if the condition persists
Fuel level gauge – low / empty readingDash gauge shows low fuel in the tankNormal consumption, or a fuel leak at lines, tank, or injection pumpRefuel and bleed the fuel system if it ran dry; inspect lines, tank, and pump for leaks if consumption seems abnormal
No display code — hard start or slow crank after standing idleNot an electronic fault; this machine has no fault-code display. Engine cranks slowly or fails to fire after sitting, typical of a mechanically governed, naturally aspirated engineSticking or carbon-fouled decompression mechanism, weak batteries or slow cranking speed, gelled or contaminated fuel, worn injectorsExercise the decompression lever/valve before cranking, check battery condition and cranking speed, bleed the fuel system, check injector condition if hard starting continues
No display code — crankcase oil smells of fuel or oil level risesNot an electronic fault; found by checking the dipstick, not by any panel indicator. Diesel fuel is entering and diluting the engine oilWorn injection pump seals or worn injector seals allowing fuel to bypass into the crankcaseCheck oil level and smell at every interval, pressure test and inspect the injection pump and injector seals, change oil and filter after repair

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

D3B attachments & work tools

Blades

Standard dozer blade on the D3B is a straight (S-type) unit, 2.44 m (8 ft) wide, 84 cm (33.1 in) tall, about 1.3 cu m (1.7 cu yd) capacity, angling +/-25 degrees either side. LGP-fitted units carry a wider blade, roughly 2.8 m (9.2 ft), paired with 64 cm (25 in) shoes for lower ground pressure versus the standard 30 cm (12 in) shoe. Lift, tilt and angle cylinders were offered for a PAT-style 6-way blade; a true VPAT blade is not part of the D3B lineup, that feature belongs to Cat's larger dozer classes.

Rippers

Ripper options split into single-shank and multi-shank (parallelogram) styles, shared across the small-class family that includes the D3B, D3C, D4B/D4C and D5C. Single-shank units run one heavy shank/tip for hard ground, frozen soil, soft rock and root pulling; multi-shank parallelogram rippers carry several shank pockets on a hinge-style beam with a lift cylinder plus a separate tilt cylinder, better suited to loosening thinner or frozen ground over a wider pass. Either style needs an auxiliary hydraulic valve added to the base circuit, and fitting a ripper adds meaningful weight to the rear of the tractor, figure varies by configuration.

Winches

The D3B sits in the same small-dozer winch-fitment class as the D1-D3 range and the later D3K2-D5K2 machines, served by one shared cable-type towing winch line rather than a unit built specifically for this model. No line-pull or cable-capacity figures specific to the D3B are documented in available specification sources; confirm winch model and rating against the tractor's serial number with the winch supplier or dealer. The winch mounts at the rear, in place of or alongside the drawbar/counterweight group.

Drawbars/Counterweights

A rear drawbar group and a separate counterweight group are catalogued as fitment options, used for towing/implement work and to balance the tractor when a rear ripper or other heavy rear tool is fitted. Counterweight addition runs in the low hundreds of kilograms; treat the exact figure as varying by configuration and confirm against the specific parts listing for the unit in hand.

Cab/ROPS guarding (forestry/waste)

No factory 'Waste Handler' spec package is documented for the D3B; that designation belongs to Cat's larger D6-D9-class dozers. Forestry-duty D3B units of this era typically ran a ROPS/FOPS-certified cab with rear screen and belly/sweep guarding fitted through dealer or aftermarket kits rather than a catalogued factory forestry option; confirm availability for a specific serial range with your dealer.

Hydraulic arrangement (front/rear tools)

Base hydraulic system runs about 17 200 kPa (2500 psi) relief pressure with roughly 55 L/min (14.6 gpm) pump flow and about 70 L (18.5 gal) system capacity, driving blade lift/tilt/angle as standard equipment. A rear-mounted tool such as a ripper or winch needs an added auxiliary control valve tapped into this circuit, with front and rear attachment lines run as separate groups so the blade and a rear tool can be worked independently. No extra valve bank is standard; the auxiliary valve and lines are add-on equipment.

All D3B assemblies by section

Every catalogued assembly group for the Caterpillar D3B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
4n0307 Air Cleaner Group
4n7914 Air Cleaner Group
4n0312 Exhaust Extension Group
2w3540 Kit-Breather (Pcv) - Part 2 Of 2
2w3540 Kit-Breather (Pcv) - Part 1 Of 2
1w5054 Air Lines Group
1W***54Lines Group-Air; Air Lines Group1
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7n6002 Air Lines Group
7N***02Lines Group-Air; Air Lines Group1
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5g1378 Torque Converter Cooler Lines Group
7n4971 Exhaust Manifold Group
7N***71Manifold Group-Exhaust; Exhaust Manifold Group1
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7n4970 Muffler Group
4n5202 Muffler Group-Type 3
4n5202 Muffler Group-Type 1
4n5202 Muffler Group-Type 2
1w7722 Muffler Support Group
Basic Engine
6n2393 Camshaft Group
6N***93Camshaft Group-Single; Camshaft Group-Single1
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6n7418 Valve Mechanism Cover Group
6N***18Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
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2w3239 Valve Mechanism Cover Group
2W***39Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
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2w7486 Valve Mechanism Cover Group
2W***86Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
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Crankshaft Bearing Replacements
8N***71.51 mm--Front Main--Non-Grooved3
8N***72.51 mm--Front Main--Non-Grooved3
8N***730 Standard--Front Main--Non-Grooved; 0 (Standard)-Front Main-Non-Grooved3
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2w8965 Crankshaft Group
2W***65Crankshaft Group; Crankshaft Group1
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7w3926 Crankshaft Gp
7W***26Crankshaft Group; Crankshaft Group1
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7n3988 Crankshaft Group
7N***88Crankshaft Group; Crankshaft Group1
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2w8368 Crankshaft Gp
2W***68Crankshaft Group; Crankshaft Group1
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1w4832 Crankshaft Group
1w9768 Crankshaft Group
1W***68Crankshaft Group; Crankshaft Group1
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4n0172 Cylinder Block And Covers Group-End View
4n0172 Cylinder Block And Covers Group-Side View
1w4327 Cylinder Block Assembly
2w7902 Cylinder Block Assembly-Field Installation
4n0101 Cylinder Block Assembly
4N***01Cylinder Block As; Cylinder Block Assembly1
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1w0549 Short Cylinder Block Group-Field Installation*R
1W***49Cylinder Block Group1
4N***01Cylinder Block As; Cylinder Block Assembly1
7N***88Crankshaft Group; Crankshaft Group1
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1w4326 Cylinder Block Group
1W***26Cylinder Block Group; Cylinder Block Group1
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2w8954 Short Cylinder Block Group-Field Installation
2W***54Cylinder Block Group1
2W***65Crankshaft Group; Crankshaft Group1
4N***01Cylinder Block As; Cylinder Block Assembly1
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2w4227 Short Cylinder Block Group-Field Installation*R
1W***26Cylinder Block Group; Cylinder Block Group1
1W***68Crankshaft Group; Crankshaft Group1
2W***27Cylinder Block Group-Short1
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7c2320 Head As-Cylinder Service*R
7w9390 Cylinder Head As
1w2280 Cylinder Head Group
6n2467 Cylinder Head Group*R
6N***67Cylinder Head Group; Cylinder Head Group1
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7w9392 Cylinder Head Gp*R
8n5644 Cylinder Head Group
6n2467 Cylinder Head Gp*R
6N***67Cylinder Head Group; Cylinder Head Group1
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7n5141 Fan Drive Group
7N***41Drive Group-Fan; Water Pump Drive Group1
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7n6937 Flywheel Group
1w1355 Front Gear Group
1W***55Gear Group-Front; Front Gear Group1
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7n6344 Flywheel Housing Group
7N***44Housing Group-Flywheel; Flywheel Housing Group1
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4n0183 Flywheel Housing Group
4N***83Housing Group-Flywheel; Flywheel Housing Group1
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1w1306 Front Housing Group
2w4384 Front Housing Group
2W***84Housing Group-Front; Front Housing Group1
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1w5554 Lifting Group
4n0180 Engine Lifting Group
4N***80Lifting Group-Engine; Lifting Eye Group1
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6n8370 Oil Pan Group
8n4079 Connecting Rod And Piston Group-4 Required
8N***79Piston & Rod Group; Connecting Rod And Piston Group1
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6n6562 Connecting Rod And Piston Group-4 Required
6N***62Piston & Rod Group; Connecting Rod And Piston Group1
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8n4079 Connecting Rod & Piston Group
8N***79Piston & Rod Group; Connecting Rod And Piston Group1
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2w8419 Piston Group
7n5138 Crankshaft Pulley Group
7N***38Pulley Group-Crankshaft; Auxiliary Drive Pulley Group1
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4w8261 Piston Ring Group--.51 Mm (.020 In.) Oversize
2W***16Ring-Piston; (Oil)(0.51-mm Os)1
4W***60Ring--Top1
4W***61Ring Group-Piston1
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4w8269 Piston Ring Group-1.02 Mm (.040 In.) Oversize
2W***17Ring-Piston; (Oil)(1.02-mm Os)1
4W***69Ring Group-Piston2
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1w5719 Valve Rocker Arm Group
8n9189 Short Cylinder Block Group-Field Installation*R
4N***01Cylinder Block As; Cylinder Block Assembly1
6N***62Piston & Rod Group; Connecting Rod And Piston Group4
7N***88Crankshaft Group; Crankshaft Group1
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4n0300 Engine And Transmission Support Group
1w5720 Valve Mechanism Group
1W***20Valve Mechanism Group; Valve Mechanism Group1
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6n2398 Valve Mechanism Group
6N***98Valve-Mechanism Group; Valve Mechanism Group1
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Cab, Gauges And Accessories
7v9507 Seat Belt Group-Type 1
3v7111 Belt Group
7v9507 Belt Gp-Seat
7v9506 Seat Belt Group-Type 1
8k9002 Basic Belt Group-Type 2
8K***02Seat Belt Group; - For Use With Suspended Seat And Without Rops Mounting1
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8k9002 Basic Belt Gp
3V***11Seat Belt Group1
3V***12Belt Group (No Serviceable Parts)1
8K***02Seat Belt Group; - For Use With Suspended Seat And Without Rops Mounting1
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7v9506 Seat Belt Group-Type 2
7n5596 Air Conditioner Arrangement-Engine Parts
4N***20Fan Group-Suction; Suction Fan Group1
7N***96Compressor Group-Refrigerant; Refrigerant Compressor Group1
7N***77Condenser Group; Mounting Condenser Group1
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5g0596 Air Conditioner Arrangement
5G***97Air Conditioner Group; Air Conditioner Group1
5G***37Heater Group-Cab; Cab Heater Group1
5G***96Air Conditioner Ar1
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5g0097 Air Conditioner Group
5G***97Air Conditioner Group; Air Conditioner Group1
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6s9800 Cab Group-Part 2 Of 4-Type 1
6s9800 Cab Group-Part 3 Of 4-Type 2
6s9800 Cab Group-Part 4 Of 4-Type 4
6s9800 Cab Group-Part 4 Of 4-Type 1
6s9800 Cab Group-Part 1 Of 4-Type 3
6s9800 Cab Group-Part 2 Of 4-Type 2
6s9800 Cab Group-Part 3 Of 4-Type 1
6s9800 Cab Group-Part 2 Of 4-Type 3
6s9800 Cab Group-Part 1 Of 4-Type 4
6s9800 Cab Group-Part 3 Of 4-Type 3
6s9800 Cab Group-Part 4 Of 4-Type 2
6s9800 Cab Group-Part 2 Of 4-Type 4
6s9800 Cab Group-Part 3 Of 4-Type 4
6s9800 Cab Group-Part 4 Of 4-Type 3
6s9800 Cab Group-Part 1 Of 4-Type 1
6s9800 Cab Group-Part 1 Of 4-Type 2
7n4660 Clutch And Refrigerant Compressor Group
7N***60Compressor Group-Clutch & Refrig1
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7n4596 Refrigerant Compressor Group
7N***96Compressor Group-Refrigerant; Refrigerant Compressor Group1
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7n4677 Mounting Condenser Group
7N***77Condenser Group; Mounting Condenser Group1
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5g1020 Dash Group
5g0190 Door Group-L.H.-Part 1-Type 2
5g0190 Door Group-L.H.-Part 1-Type 1
5g0190 Door Group-L.H.-Part 2-Type 1
5g0190 Door Group-L.H.-Part 2-Type 2
5g0200 Door Group-R.H.-Part 2-Type 1
5g0200 Door Group-R.H.-Part 2-Type 2
5g0200 Door Group-R.H.-Part 1-Type 2
5g0200 Door Group-R.H.-Part 1-Type 1
5g0142 Gauge Group
5g0949 Vandalism Guard Group-Type 1
5g0949 Vandalism Guard Group-Type 2
5g2988 Handle Group-Assist
5G***88Handhold Group; Handle Group--Assist1
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5g0537 Cab Heater Group-Type 2
5G***37Heater Group-Cab; Cab Heater Group1
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5g0537 Cab Heater Group-Type 1
5G***37Heater Group-Cab; Cab Heater Group1
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5g1112 Air Conditioner Lines Group
5G***12Lines Group-Air Conditioner; Air Conditioner Lines Group1
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4n0481 Electric Hour Meter Group
5g2002 Cab Pressurizer Group
5G***02Pressurizer Group; Cab Pressurizer Group1
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5g2055 Basic Pressurizer Group-Part 1 Of 3
5g2055 Basic Pressurizer Group-Part 2 Of 3
5g2055 Basic Pressurizer Group-Part 3 Of 3
5g0001 Roll-Over Protection System Group-Modular Cab
5G***01Rops Ar; Rollover Ar1
5G***49Washer Group-Windshield; Windshield Washer Group1
5G***57Wiring Group-Cab; Cab Wiring Group1
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5g0673 Roll-Over Protective Group-Type 1
5g0673 Roll-Over Protective Group-Type 2
5g1804 Seat & Support Gp
5G***04Seat & Support Group; Support And Seat Group1
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5g0115 Support And Seat Group-Part 2
5g6171 Seat & Support Gp-Part 1 Of 2
5g6171 Seat & Support Gp-Part 2 Of 2
5g0115 Seat & Support Gp-Part 1 Of 2
5g0115 Seat & Support Gp-Part 2
5g0115 Support And Seat Group-Part 1
8y1177 Seat & Support Gp
6s7596 Seat Gp-Part 1 Of 2
5g2334 Reversible Seat Group-Type 1
5G***34Seat Group; Reversible Seat Group1
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6s7596 Seat Group-Type 1
6s7596 Seat Gp-Part 2 Of 2
5g2334 Reversible Seat Group-Type 3
5G***34Seat Group; Reversible Seat Group1
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5g2334 Reversible Seat Group-Type 2
5G***34Seat Group; Reversible Seat Group1
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6s3626 Suspension Seat Group-Type 1
6S***26Seat Group-Suspension; Suspension Seat Group-------------------1
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6s3626 Suspension Seat Group-Type 2
6S***26Seat Group-Suspension; Suspension Seat Group-------------------1
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5g3575 Sound Suppression Group
5g2925 Sound Suppression Group
5G***25Suppression Group-Sound; Sound Suppression Group1
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5g2355 Sound Suppression Arrangement-80 Decibels At 7 M
4N***02Muffler Group1
5G***55Suppression Group-Sound1
5G***56Hood & Guard Group; Hood And Guard Group1
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2v7961 Suspension As-Seat
5g2656 Suspension Seat Group
5g2236 Sweep Group
5g0049 Windshield Washer Group
5G***49Washer Group-Windshield; Windshield Washer Group1
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5g0974 Windshield Wiper Group
Chassis And Undercarriage
6s9359 Track Cleaner Bar Group
5g0297 Counterweight Group-272 Kg (600 Lbs.)
6s8670 Counterweight Group
5g0441 Counterweight Group-Front
6s8902 Counterweight Gp-Idler
6S***02Counterweight Group-Idler1
6Y***68Idler & Bearing As2
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6s8659 Counterweight Mounting Group
5g5317 Drawbar Gp-Swing
6s6809 Swinging Drawbar Group
6s9698 Engine Enclosure Group
5g4328 Engine Enclosure Group
5g4019 Engine Enclosure Group
5g0936 Engine Enclosure Group
6s9704 Track Roller Frame Group
5g0471 Firewall Group
5g0471 Firewall Gp
5g0262 Frame Group
6s8909 Track Roller Frame Group
5g1185 Bottom Guard Group
5g2327 Brush Guard Group
5g2342 Brush Guard Group
5g0465 Radiator Guard Group
6s9697 Radiator Guard Group
6S***97Guard Group-Radiator; Radiator Guard Group1
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6s8323 Radiator Guard Group-Hinged-Heavy Duty
6s6166 Radiator Hinged Guard Group
6S***66Guard Group-Radiator Hinged; Radiator Hinger Guard Group1
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6s9045 Recoil Mechanism Guard Group
5g0382 Track Roller Guard Group
5g0998 Hood And Guard Group
5g2356 Hood And Guard Group
5G***56Hood & Guard Group; Hood And Guard Group1
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5g4308 Hood And Guard Group
5g3894 Hood And Guard Group
5G***94Hood & Guard Group; Hood And Guard Group1
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6s3864 Front Pull Hook Group
6y1368 Idler & Bearing As-2 Required
6S***95Bearing Assembly2
6S***33Bearing1
6Y***68Idler & Bearing As1
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5g0363 Idler As-Counterweight
5G***38Idler Assembly1
5G***63Idler & Bearing As1
6S***95Bearing Assembly2
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6s3610 Idler Gp-Front-Part 1 Of 1
5g2362 Firewall Liner Group
6s9066 Link As-Track
6y1339 Link As-Track
6y1711 Link As-Track
6s9605 Link As-Track
5g2294 Cab Mounting Group-Modular Cab
5g0521 Roll-Over Protective Structure Mounting Group
3t4352 Roller Gp-Single Flange-6 Required
3T***52Roller Group-Track; Single Flange Track Roller Group1
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3t4353 Roller Gp-Double Flange-4 Required
3T***53Roller Group-Track; Double Flange Track Roller Group1
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6s3609 Track Carrier Roller Group-2 Required
6S***09Roller Group-Track Carrier; Track Carrier Roller Group1
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6s3607 Track Roller Group-Single Flange-4 Required
6S***07Roller Group-Track Single Flange1
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5g2987 Shield Group-Heat
5G***87Shield Group-Heat; Shield Group--Heat1
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5g0378 Undercarriage Support Group
6s9076 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)140
6S***23Shoe--Master1
6S***14Shoe35
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6y1344 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)140
6Y***28Shoe-Track1
6Y***29Shoe-Track-(Master35
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6s9096 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)140
6S***15Shoe35
6S***57Shoe (Master)1
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6s9092 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)140
6S***22Shoe35
6S***63Shoe-Grouser Track1
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6y1670 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)140
6Y***39Link As-Track; Link Assembly1
6Y***81Shoe-Track35
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6s9095 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)140
6S***22Shoe35
6S***63Shoe-Grouser Track1
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Track Group-Sealed & Lubricated
6s3608 Track Roller Group-Double Flange-6 Required
Cooling System
1n4903 Engine Oil Cooler Group
1N***03Cooler Group-Engine Oil; Engine Oil Cooler Group1
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4n0175 Engine Oil Cooler Group
4N***75Cooler Group-Engine Oil; Engine Oil Cooler Group1
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5g2765 Hydraulic Cooler Group
7n9989 Blower Fan Group
4n2220 Suction Fan Group
4N***20Fan Group-Suction; Suction Fan Group1
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6n9739 Heater Gp-Jacket Water (750 Watt, 120 Volt)
6N***39Heater Group-Jacket Water; Jacket Water Heater Group1
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6n9125 Heater Gp-Jacket Water (750 Watt, 120 Volt)
4n0188 Water Lines Group
4N***88Lines Group-Water; Water Lines Group1
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4n0660 Water Pump Group
4N***60Pump Group-Water; Water Pump Group1
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4n0660 Pump Gp-Water
4N***60Pump Group-Water; Water Pump Group1
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8n5864 Radiator Group
8n4077 Radiator Group
8n3082 Radiator Group
Engine Arrangement
7n6938 Engine Arrangement-Part 1
4N***72Cylinder Block & Covers Group1
4N***80Lifting Group-Engine; Lifting Eye Group1
4N***83Housing Group-Flywheel; Flywheel Housing Group1
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7n6938 Engine Arrangement-Part 2
4N***75Cooler Group-Engine Oil; Engine Oil Cooler Group1
4N***85Gauge Group-Oil Level (Dipstick); Oil Level Gauge Group1
4N***88Lines Group-Water; Water Lines Group1
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1w0164 Engine Arrangement-Part 1 Of 2
1W***64Engine Ar1
1W***06Housing Group-Front1
1W***26Cylinder Block Group; Cylinder Block Group1
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2w7487 Engine Ar-Part 1 Of 2
1W***55Gear Group-Front; Front Gear Group1
1W***26Cylinder Block Group; Cylinder Block Group1
1W***54Lifting Group1
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2w7487 Engine Ar-Part 2 Of 2
1N***24Filter Group-Oil; Oil Filter Group1
1N***03Cooler Group-Engine Oil; Engine Oil Cooler Group1
1W***67Gauge Group-Oil Level (Dipstick)1
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1w0164 Engine Arrangement-Part 2 Of 2
1N***24Filter Group-Oil; Oil Filter Group1
1N***03Cooler Group-Engine Oil; Engine Oil Cooler Group1
1W***64Engine Ar1
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Fuel System And Governor
2w0262 Camshaft Assembly
8n9752 Changeover Gp-Fuel Heater
5g2257 Governor And Transmission Control Group-Type 1
5G***57Control Group-Gov & Transmission1
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5g2257 Governor And Transmission Control Group-Type 2
5G***57Control Group-Gov & Transmission1
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5g4866 Governor And Transmission Control Group
5G***66Control Group-Gov & Transmission1
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6s8967 Governor Control Group
8n6158 Governor Cover Group
8n6389 Governor Cover Group
2w2030 Accessory Drive Group
2W***30Drive Group-Accessory; Accessory Drive Group1
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7n5636 Accessory Drive Group
7N***36Drive Group-Accessory; Accessory Drive Group1
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5g2499 Fuel Filler Extension Group
1w6680 Fuel Filter Group
1W***80Filter Group-Fuel; Fuel Filter Group1
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8n3447 Fuel Filter Group
8N***47Filter Group-Fuel; Fuel Filter & Lines Group1
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1w6680 Filter Gp-Fuel
1W***80Filter Group-Fuel; Fuel Filter Group1
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9y1897 Filter Gp-Fuel
9Y***97Filter Group-Fuel; Fuel Filter Group1
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7n5630 Fuel Injection Pump Group
7n4675 Governor And Fuel Injection Pump Group-Type 2
7N***75Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group1
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7n4675 Governor And Fuel Injection Pump Group-Type 1
7N***75Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group1
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1w8730 Governor Group-Part 2 Of 3-Type 2
7n5869 Governor Group-Part 2 Of 2-Type 1
7n5869 Governor Group-Part 1 Of 2-Type 1
1w8730 Governor Group-Part 2 Of 2-Type 1
7n5869 Governor Group-Part 1 Of 2-Type 5
7n5869 Governor Group-Part 2 Of 2
1w8730 Governor Group-Part 1 Of 2-Type 1
7n5869 Governor Group-Part 2 Of 2-Type 3
2w4118 Governor Group-Part 2 Of 2
7n5869 Governor Group-Part 1 Of 2-Type 2
7n5869 Governor Group-Part 2 Of 2-Type 4
7n5869 Governor Group-Part 1 Of 2-Type 4
7n5869 Governor Group-Part 1 Of 2
7n5869 Governor Group-Part 1 Of 2-Type 3
2w4118 Governor Group-Part 1 Of 2
1w8730 Governor Group-Part 3 Of 3-Type 2
7n5869 Governor Group-Part 2 Of 2-Type 2
7n5869 Governor Group-Part 2 Of 2-Type 5
1w8730 Governor Group-Part 1 Of 3-Type 2
5g0466 Fuel Lines Group
5g4583 Lines Gp-Fuel
1w4105 Fuel Injection Lines Group
1W***05Lines Group-Fuel Injection; Fuel Injection Lines Group1
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1w0172 Fuel Injection Lines Group
7n5146 Fuel Injection Lines Group
7N***46Lines Group-Fuel Injection; Fuel Injection Lines Group1
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7n0042 Fuel Injection Lines Group
6s9980 Vandalism Protection Group-Type 2
6s9980 Vandalism Protection Group-Type 1
1w6539 Fuel Injection Pump Group
1n4855 Fuel Injection Pump Group-Type 1
1n4855 Fuel Injection Pump Group-Type 2
2w0263 Fuel Injection Pump Group
1w4590 Fuel Injection Pump Group
4n4314 Pump Gp-Fuel Priming
4N***14Pump Group-Fuel Priming; Fuel Priming Pump Group1
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4n0242 Fuel Transfer And Priming Pump Group
4N***42Pump Group-Fuel Tfr & Priming; Fuel Transfer And Priming Pump Group1
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2w4403 Fuel Transfer Pump Group
2W***03Pump Group-Fuel Transfer; Fuel Transfer Pump Group1
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1w0568 Pump Gp-Fuel Transfer
1w3186 Governor & Fuel Injection Pump Gp
1W***86Pump Group-Gov & Fuel Inj; Governor And Fuel Injection Pump Group1
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1w3187 Governor & Fuel Injection Pump Group
7w0189 Governor Fuel Injection Pump Group
7W***89Pump Group-Gov & Fuel Inj; Governor & Fuel Injection Pump Group1
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8n4751 Governor And Fuel Injection Pump Group
8N***51Pump Group-Gov & Fuel Inj; Governor And Fuel Injection Pump Group1
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9l4598 Torque Control Group
5g4581 Fuel Tank Group
6s9899 Fuel Tank Group-Type 2
6s9899 Fuel Tank Group-Type 1
4w5063 Torque Control Gp
7n5716 Torque Control Group
7N***16Torque Control Group; Torque Control Group1
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Hydraulic System
9j8698 Angling Cylinder Group-88.9 Mm (3.50") Bore X 352 Mm (13.85")
9J***98Angling Cylinder Group; Angling Cylinder Group1
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9j8698 Angling Cylinder Group-88.9 Mm (3.50") Bore X 352 Mm
9J***98Angling Cylinder Group; Angling Cylinder Group1
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7j9223 Cylinder Gp-Lift
9g9288 Protection Cover Group-Hydraulic Tank Cap
9G***88Protection Cover Group; -Hydraulic Tank-Steering Tank Fill Cap-Hydraulic Tank Fill Cap1
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9j8674 Tilt Cylinder Group-88.9 Mm (3.50") Bore X 152 Mm (6") Stroke
9J***74Tilt Cylinder Group; Tilt Cylinder Group1
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3g5634 Bank Valve Group
6s9401 Boom Cylinder Lines Group
6s6945 Boom Cylinder Lines Group
6s4077 Bucket Cylinder Lines Group
8j1188 Angle And Tilt Bulldozer Arrangement
1U***20C-Frame Group; C-Frame Group1
1U***58Blade Group-Angling; Angling Blade Group1
4T***73Blade Group-Angling; Angling Blade Group1
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3g9290 Bulldozer Ar-Power Angling & Tilt
1U***20C-Frame Group; C-Frame Group1
3G***90Bulldozer Ar-Angling1
4T***73Blade Group-Angling; Angling Blade Group1
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3g9290 3p Bulldozer Ar-Power Angling & Tilt
3G***90Bulldozer Ar-Angling1
5G***69Trunnion Mounting Group; Trunnion Mounting Group1
5G***39Lines Group-Lift Cylinder; Lines Group-Lift Cylinder1
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5g0571 Hydraulic Hand Control Group
5G***33Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper1
5G***71Control Group-Hydraulic Hand; Hydrualic Hand Control Group1
5G***23Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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5g2223 Hydraulic Hand Control Group-Type 1
5G***23Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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5g0561 Hydraulic Hand Control Group
5G***61Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
5G***23Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
5G***86Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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5g2223 Control Gp-Hydraulic Hand
5G***23Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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5g2386 Hydraulic Hand Control Group
5G***86Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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5g0333 Hydraulic Hand Control Group-Ripper
5G***33Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper1
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5g2223 Hydraulic Hand Control Group-Type 2
5G***23Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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6s9331 Control Valve And Lines Group
3g5635 Control Valve Group-Swing
5d1910 Protection Cover Group-Hydraulic Tank Cap
5D***10Cover Group-Protection; Protection Cover Group Hydraulic Tank Cap1
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5g3446 Slider Lock Cylinder Group
5G***46Cylinder Group; Slider Lock Cylinder Group1
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3g5767 Boom Cylinder Group-114.3 Mm (4.5 In.) Bore X 868.7 Mm (34.2 In.)
3g5905 Bucket Cylinder Group-88.9 Mm (3.5 In.) Bore X 746.8 Mm (29.4 In.)
1u2656 Stabilizer Cylinder Group-L.H.-101.6 Mm (4 In.) Bore X 450.4 Mm
1U***56Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-L.H1
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1u2655 Stabilizer Cylinder Group-R.H.-101.6 Mm (4 In.) Bore X 450.4 Mm
1U***55Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-R.H1
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3g5771 Stick Cylinder Group-101.6 Mm (4 In.) Bore X 863.6 Mm (34 In.)
8j5555 Boom Cylinder Group-114.3 Mm (4.50") Bore X 826 Mm (32.50") Stroke
8J***55Cylinder Group-Boom; Boom Cylinder Group1
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8j5642 Bucket Cylinder Group-88.9 Mm (3.50") Bore X 686 Mm (27") Stroke
8J***42Cylinder Group-Bucket; Bucket Cylinder Group1
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9t6652 Cylinder Gp-Lift
7j9920 Ripper Cylinder Group-101.6 Mm (4") Bore X 203 Mm (8") Stroke
8j6903 Stabilizer Cylinder Group-L.H.-101.6 Mm (4") Bore X 451 Mm (17.75")
8J***03Cylinder Group-Stabilizer; Stabilizer Cylinder Group--L.H1
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3g6792 Stabilizer & Cylinder Group-88.9 Mm (3.50 In.) Bore X 520.7 Mm
3G***92Cylinder Group-Stabilizer; Stabilizer Cylinder Group1
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8j9481 Stabilizer Cylinder Group-88.9 Mm (3.50") Bore X 384 Mm (15.10")
8J***81Cylinder Group-Stabilizer; Stabilizer Cylinder Group1
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8j6904 Stabilizer Cylinder Group-R.H.-101.6 Mm (4") Bore X 451 Mm (17.75")
8J***04Cylinder Group-Stabilizer; Stabilizer Cylinder Group--R.H1
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8j5448 Stick Cylinder Group-101.6 Mm (4") Bore X 833 Mm (32.80") Stroke
8J***48Cylinder Group-Stick; Stick Cylinder Group1
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5g2341 Hydraulic Oil Temperature Gauge Group
5G***41Gauge Group-Hydraulic Oil Temp; Hydraulic Oil Temperature Gauge Group1
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5g0558 Hydraulic Arrangement-3 Valve-Lift, Blade Tilt & Angle
5G***58Hydraulic Ar1
5G***60Valve Group-Control; Control Valve Group1
5G***61Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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5g0568 Hydraulic Arrangement-4 Valve-Lift, Blade Tilt, Angle & Ripper
5G***43Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper1
5G***68Hydraulic Ar1
5G***70Valve Group-Control; Control Valve Group1
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5g1054 Angling Cylinder Lines Group-Part 1
5G***54Lines Group-Angle Cylinder; Angle Cylinder Lines Group1
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5g1054 Angling Cylinder Lines Group-Part 2
5G***54Lines Group-Angle Cylinder; Angle Cylinder Lines Group1
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5g2612 Boom Cylinder Lines Group
5G***12Lines Group-Boom Cylinder; Boom Cylinder Lines Group1
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5g3669 Boom Cylinder Lines Group
5G***69Lines Group-Boom Cylinder; Room Cylinder Lines Group1
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6s9403 Bucket Cylinder Lines Group
6S***03Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group1
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5g2619 Bucket Cylinder Lines Group
5G***19Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group1
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5g3672 Bucket Cylinder Lines Group
5G***72Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group1
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5g2105 Hydraulic Lines Group-Type 2
5G***05Lines Group-Hydraulic; Hydraulic Lines Group1
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5g2105 Hydraulic Lines Group-Type 1
5G***05Lines Group-Hydraulic; Hydraulic Lines Group1
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5g1039 Lift Cylinder Lines Group-Type 2
5G***39Lines Group-Lift Cylinder; Lines Group-Lift Cylinder1
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5g1039 Lift Cylinder Lines Group-Type 1
5G***39Lines Group-Lift Cylinder; Lines Group-Lift Cylinder1
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5g2323 Hydraulic Pump Lines Group
5G***23Lines Group-Pump; Pump Lines Group1
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5g0543 Rear Attachment Lines Group
5G***43Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper1
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6s3559 Ripper Lines Group
6S***59Lines Group-Ripper; Ripper Lines Group1
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5g2216 Stabilizer Lines Group
5G***16Lines Group-Stabilizer; Stabilizer Lines Group1
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5g3682 Stabilizer Cylinder Lines Group
5G***82Lines Group-Stabilizer; Lines Group-Stabilizer Cylinder1
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5g2618 Stick Cylinder Lines Group
5G***18Lines Group-Stick; Stick Cylinder Lines Group1
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5g3675 Stick Cylinder Lines Group
5G***75Lines Group-Stick; Stick Cylinder Lines Group1
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5g3679 Swing Actuator Lines Group
5G***79Lines Group-Swing Actuator; Swing Actuator Lines Group1
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5g2606 Swing Actuator Lines Group
5G***06Lines Group-Swing Actuator; Swing Actuator Lines Group1
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5g1047 Tilt Cylinder Lines Group-Part 2
5G***47Lines Group-Tilt Cylinder; Tilt Cylinder Lines Group1
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5g1047 Tilt Cylinder Lines Group-Part 1
5G***47Lines Group-Tilt Cylinder; Tilt Cylinder Lines Group1
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5g2491 Hydraulic Hand Control Group
5G***91Lock Group-Hydraulic Hand Control1
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8j4513 Gear Pump Group-Tyrone
8j4512 Gear Pump Group
8J***12Pump Group-Gear; Gear Pump Group-Single Section1
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3g5385 Gear Pump Group-Shimadzu Seisakusko
6s9410 Stabilizer Lines Group
6s6373 Stabilizer Lines Group
6s9402 Stick Cylinder Lines Group
6s7017 Stick Cylinder Lines Group
6s9404 Swing Actuator Lines Group
6s6389 Swing Actuator Lines Group
5g0099 Hydraulic Tank And Filter Group
5g0013 Hydraulic Tank Group
5g3687 Lines And Valve Group
5G***87Valve & Lines Group; Lines And Valves Group1
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5g2582 Valve And Lines Group
5G***82Valve & Lines Group; Valve And Lines Group1
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5g3692 Sideshift Lock Lines & Valve Group
5G***92Valve & Lines Group; Lines And Valve Group--Sideshift Lock1
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3g0777 Control Valve Group-Boom
1u2576 Bank Valve Group
9j5823 Bank Valve Group-Lift, Blade Tilt & Angle
9j5825 Bank Valve Group-Lift, Blade Tilt, Angle & Ripper
6s4767 Breaker Relief Valve Group
8j9471 Check Valve Group-Make-Up
8J***71Valve Group-Check; -Lift Cylinder Circuit1
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9j0718 Tilt And Angle Control Valve Group
1u4630 Valve Gp
6s9822 Control Valve Group
3g0778 Control Valve Group-Bucket & Stabilizers
3G***78Valve Group-Control; (Rh Stabilizer)1
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9j0717 Ripper Control Valve Group
5g0570 Control Valve Group-Lift, Blade Tilt, Angle & Ripper
5G***70Valve Group-Control; Control Valve Group1
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5g0560 Control Valve Group-Lift, Blade Tilt & Angle
5G***60Valve Group-Control; Control Valve Group1
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3g2887 Diverter Valve Group
3G***87Valve Group-Diverter; -Towing, Parking Brake Release1
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9j0715 Lift Control Valve Group
9j0797 Relief Valve Group-Pilot Operated
9J***97Valve Group-Relief; (Pilot Operated)1
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9j0723 Relief Valve Group-Pilot Operated
9j0710 Ripper Cylinder Relief Valve Group-Direct Operated
4t2591 Relief Valve Group-Pilot Operated
9j0796 Relief Valve Group-Pilot Operated
9J***96Valve Group-Relief-Pilot Operated-1650 Psi1
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Implements
5g0269 Trunnion Mounting Group
5G***69Trunnion Mounting Group; Trunnion Mounting Group1
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6s6949 Actuator Group
3y6885 Actuator Group
3y6884 Rotary Actuator Group
4t0412 Rotary Actuator Group
5g3761 Swing Actuator Group
5G***61Actuator Group-Swing; Swing Actuator Group1
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5g2464 Swing Actuator Group
5G***64Actuator Group-Swing; Swing Actuator Group1
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5g2150 Fixed Pivot Backhoe Arrangement
1U***55Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-R.H1
1U***56Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-L.H1
3G***67Cylinder Group-Backhoe Boom1
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5g3690 Sideshift Backhoe Arrangement
3G***71Cylinder Group-Backhoe Stick1
3G***05Cylinder Group-Backhoe Bucket1
3G***92Cylinder Group-Stabilizer; Stabilizer Cylinder Group1
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6s4538 Backhoe Arrangement-Fixed Pivot
5G***07Swing Actuator Group1
5G***25Backhoe Mounting And Control Group; Mounting And Control Group1
6S***92Backhoe Bucket Linkage Group; Budket Linkage Group1
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6s9400 Backhoe Arrangement-Sideshift
5G***07Swing Actuator Group1
5G***25Backhoe Mounting And Control Group; Mounting And Control Group1
6S***92Backhoe Bucket Linkage Group; Budket Linkage Group1
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6s3992 Bucket Linkage Group
6S***92Backhoe Bucket Linkage Group; Budket Linkage Group1
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6s9320 Backhoe Console Group
5g0889 Ejector Bucket Group-609.6 Mm (24") Wide
5G***89Backhoe Ejector Bucket Group-609.6 mm (24") Wide1
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6s6390 Backhoe Frame Group
6s9411 Backhoe Frame Group
5g1025 Mounting And Control Group
5G***25Backhoe Mounting And Control Group; Mounting And Control Group1
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9j3192 Backhoe Ripper Group
6s4501 Hoe Stick Group
6S***01Backhoe Stick Group; Hoe Stick Group1
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4t3473 Angling Blade Group
4T***73Blade Group-Angling; Angling Blade Group1
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9j9241 Angling Blade Group
9J***41Blade Group-Angling; Angling Blade Group1
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1u2958 Angling Blade Group
1U***58Blade Group-Angling; Angling Blade Group1
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6s4500 Boom Group
5g2721 Boom Group
5g0887 Hoe Bucket Group-457.2 Mm (18 In.) Wide-Type 2
5g0888 Hoe Bucket Group-762 Mm (30 In.) Wide-Type 2
5g0888 Hoe Bucket Group-762 Mm (30 In.) Wide-Type 1
5g0886 Hoe Bucket Group-914.4 Mm (36 In.) Wide
5g0885 Hoe Bucket Group-609.6 Mm (24 In.) Wide-Type 2
5g0885 Hoe Bucket Group-609.6 Mm (24 In.) Wide-Type 1
5g0887 Hoe Bucket Group-457.2 Mm (18 In.) Wide-Type 1
8j0751 C-Frame Group
1u0020 Frame Group
7g9424 Case & Covers Gp
6y1467 Case & Covers Gp
7g5668 Gear & Clutch Gp-Part 2 Of 2
7G***68Clutch & Gear Group; Gear & Clutch Gp1
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7g5668 Gear & Clutch Gp-Part 1 Of 2
7G***68Clutch & Gear Group; Gear & Clutch Gp1
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6y1906 Gear & Clutch Gp-Part 2 Of 2
6y1906 Gear & Clutch Gp-Part 1 Of 2
5g2543 Console Gp
5G***43Console Group; Backhoe Console Group1
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5g3594 Backhoe Console Group
5G***94Console Group-Backhoe; Console Group-Backhoe1
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5g2586 Mounting And Control Group
5G***86Control & Mounting Group; Backhoe Mounting & Control Group1
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7g6798 Control Gp-Winch
7G***98Control Group-Winch; Winch Hydraulic Control Group1
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6y2216 Control Gp-Winch
6y2048 Control Gp-Winch
5g2636 Control Gp-Towing Winch
5G***36Control Group-Winch; Control Gp-Towing Winch1
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5g4331 Control Gp-Towing Winch
5G***31Control Group-Winch; Control Gp-Towing Winch1
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5g3938 Control Gp-Towing Winch
5G***38Control Group-Winch; Control Gp-Towing Winch1
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6t2291 Control Gp-Winch Hydraulic
6y2176 Conversion Ar-Winch
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***465
1A***83Bolt (4.75" Long-Location "B")2
3T***80Cover As1
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6y2175 Conversion Ar-Winch
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***465
3T***80Cover As1
5G***38Control Group-Winch; Control Gp-Towing Winch1
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3t9837 Conversion Ar-Winch-Directional
7t3874 Conversion Ar-Winch-Directional
9g0921 Conversion Gp-Winch-Power Out
6y1959 Conversion Gp-Winch
7g9547 Conversion Gp-Winch-Anti-Fallback
6y2217 Conversion Gp-Winch
7g9447 Covers Gp-Shipping
0S***09Bolt (3/4") Filler Tube Assembly To Transfer Drive Case2
3T***85Cover-Shipping; Shipping Cover1
4B***48Cover-Flange1
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7g9470 Drive Gp-Winch
8j7146 Bit And Cutting Edge Group
5g2235 Backhoe Frame Group
5G***35Frame Group; Backhoe Frame Group1
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5g3260 Backhoe Frame Group
5G***60Frame Group; Frame Group-Backhoe1
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5g3443 Sliding Frame Group
5G***43Frame Group-Sliding; Sliding Frame Group1
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5g2465 Swing Frame Group
5G***65Frame Group-Swing; Swing Frame Group1
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7g9425 Lines Gp-Winch
7G***25Lines Group-Winch; Winch Lines Group1
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6y2111 Lines Gp-Winch
5g2695 Bucket Linkage Group
5G***95Linkage Group-Bucket; Bucket Linkage Group1
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7g6800 Manifold Gp
6t2288 Manifold Gp
5g2173 Backhoe Mounting Arrangement
5G***05Lines Group-Hydraulic; Hydraulic Lines Group1
5G***73Mounting Ar-Backhoe1
5G***34Seat Group; Reversible Seat Group1
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6s6371 Backhoe Mounting Group
6S***71Mounting Group-Backhoe; Backhoe Mounting Group1
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8j3294 Ripper Mounting Group
8J***94Mounting Group-Ripper; Ripper Mounting Group1
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7g9423 Mounting Gp-Winch
5g4320 Street Pad Group
6s7799 Street Pad Group
5g3774 Pump & Lines Gp
1u0414 Gear Pump Group
9j9005 Ripper Arrangement
2P***17Film-D3 Ripper1
6S***59Lines Group-Ripper; Ripper Lines Group1
7J***20Cylinder Group-Ripper1
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8j3334 Ripper Group
3y6893 Shaft Group
3g4047 Sidecutter Group-Blade
3g4048 Sidecutter Group-Strikeoff
6s8305 Sliding Frame Group
5g2979 Stabilizer Group-2 Required
5G***79Stabilizer Group; Stabilizer Group1
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6s6393 Stabilizer Group-2 Required
5g2963 Step Group
5g2717 Hoe Stick Group
5G***17Stick Group-Hoe; Backhoe Stick Group1
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6s7899 Street Pad Group
5g1007 Swing Actuator Group
6s6215 Swing Frame Group
8j5313 Tooth Gp-Ripper
8j5313 Ripper Tooth Group
8j1434 Tooth Group
8J***34Tooth Group-Scarifier; -Straight1
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7g6861 Valve Gp
6t2289 Valve Gp
7g6799 Valve Gp-Selector & Pressure Control
7G***99Valve Group-Selector & Press Cont1
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6t2287 Valve Gp
6T***87Valve Group-Selector & Press Cont1
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7g9422 Winch Ar
5G***36Control Group-Winch; Control Gp-Towing Winch1
5G***74Pump & Lines Group1
7G***22Winch Ar1
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6y2218 Winch Ar
5G***36Control Group-Winch; Control Gp-Towing Winch1
5G***74Pump & Lines Group1
6Y***55Winch Ar-Towing1
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6y2465 Winch Ar
5G***74Pump & Lines Group1
5G***31Control Group-Winch; Control Gp-Towing Winch1
6Y***55Winch Ar-Towing1
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6t1278 Winch Ar
5G***74Pump & Lines Group1
5G***31Control Group-Winch; Control Gp-Towing Winch1
6T***78Winch Ar1
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6y2055 Winch Ar-Towing
4B***58Screw (Identification Plate) Mounting4
6V***27Plate, Serial Number; On Left Hand Side Of Winch1
6V***46Film-Cat-Each Side1
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7g9444 Winch Ar-Towing
4B***58Screw (Identification Plate) Mounting4
6V***27Plate, Serial Number; On Left Hand Side Of Winch1
6V***45Film-Winch Lubrication1
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Lubrication System
6n3382 Breather Group
9l9200 Oil Filter Assembly
9L***00Filter As-Oil; Oil Filter Assembly1
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1n3224 Oil Filter Group
1N***24Filter Group-Oil; Oil Filter Group1
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9y1898 Fumes Disposal Gp
9Y***98Fumes Disposal Group; Fumes Disposal Group1
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7w0297 Fumes Disposal Gp
7W***97Fumes Disposal Group; Fumes Disposal Group1
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8n3198 Fumes Disposal Group
8N***98Fumes Disposal Group; Fumes Disposal Group1
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1w0367 Oil Level Gauge Group
1W***67Gauge Group-Oil Level (Dipstick)1
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4n0185 Oil Level Gauge Group
4N***85Gauge Group-Oil Level (Dipstick); Oil Level Gauge Group1
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7w0332 Pcv Breather Kit - Field Installation
4n0193 Oil Pump Group
2w6697 Oil Pump Group
Power Train-Power Transmission Unit
6y5504 Adapter Gp-Sprocket
9p6238 Case & Parts Gp-Transmission-Part 1 Of 2
9p6238 Case & Covers Gp-Transmission-Part 2 Of 2
9p6238 Case & Parts Gp-Transmission-Part 2 Of 2
9p6238 Case & Covers Gp-Transmission-Part 1 Of 2
5g1060 Transmission Control Gp-Part 1 Of 2
5g1060 Control Gp-Transmission-Part 2 Of 2
5g1060 Transmission Control Gr-Part 2 Of 2
5g1060 Control Gp-Transmission-Part 1 Of 2
9p5695 Transmission Hydraulic Control Group
9P***95Control Group-Transmission Hydraulic; Control Gp-Transmission Hydraulic1
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5g2752 Winch Drive Arrangement
5G***11Pump & Lines Group; Pump And Lines Group1
5G***18Drive Group-Power Take-Off; Power Take-Off Drive Group1
5G***52Drive Ar-Winch1
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5g1818 Power Take-Off Drive Group-Type 1
5G***18Drive Group-Power Take-Off; Power Take-Off Drive Group1
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5g1818 Power Take-Off Drive Group-Type 2
5G***18Drive Group-Power Take-Off; Power Take-Off Drive Group1
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9p4540 Transmission Drive Pump Group
5g1239 Filler Gp-Power Train Oil
9p6277 Filter Gp-Transmission
9P***77Filter Group-Transmission; -Transmission1
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6s3604 Final Drive Gp-Part 1 Of 2
6s3604 Final Drive Gp-Part 2 Of 2
9p7243 Transfer Case & Gear Gp
5g1224 Bevel Gear Group-Part 1
5g1224 Bevel Gear Group-Part 2
8c8994 Bearing Kit-Transmission
1T***34Bearing-Ball1
4S***38Bearing-Special Ball1
5M***55Roller Assem.; Bearing-Caged3
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5g0905 Lines Gp-Powertrain Oil
7g7601 Planetary Transmission Gp-Part 3 Of 4
7g7601 Planetary Gp-Part 1 Of 2
7g7601 Planetary Transmission Gp-Part 4 Of 4
7g7601 Planetary Transmission Gp-Part 2 Of 4
7g7601 Planetary Gp-Part 2 Of 2
7g7601 Planetary Transmission Gp-Part 1 Of 4
5g2338 Pump And Lines Group-Part 1-Type 1
5g4570 Lines & Pump Group- Part 2 Of 2
5g1011 Pump And Lines Group
5G***11Pump & Lines Group; Pump And Lines Group1
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5g4570 Lines & Pump Group- Part 1 Of 2
5g2338 Pump And Lines Group-Part 1-Type 2
5g2338 Pump And Lines Group-Part 2-Type 1
5g2338 Pump And Lines Group-Part 1-Type 4
5g2338 Pump And Lines Group-Part 1-Type 3
8y1300 Pump & Lines Gp
00***73Elbow, Each Including:2
2M***80Seal--To Connector Pump Outlet2
5G***70Pump & Lines Group1
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5g2338 Pump And Lines Group-Part 2-Type 2
5g2338 Pump And Lines Group-Part 2-Type 4
5g2338 Pump And Lines Group-Part 2-Type 3
5g2865 Pump And Lines Group-Type 2
5G***65Pump & Lines Group; Pump And Lines Group1
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5g2338 Lines & Pump Group-Part 2 Of 2-Type 5
5g2865 Pump And Lines Group-Type 1
5G***65Pump & Lines Group; Pump And Lines Group1
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5g2338 Lines & Pump Group-Part 1 Of 2-Type 5
9p7239 Transmission Pump Group
9p7240 Transmission Pump Group
3g5046 Gear Pump Group
3g4096 Piston Pump Group-Slipper
4t0383 Piston Pump Group
6y2047 Segment Gp-Sprocket
1t1390 Torque Converter Gp
1t1520 Torque Converter Gp-Replaced By 1t1390-Page 60c
7g7600 Transmission Ar
7g7600 Transmission Arrangement
5g1823 Universal Joint Group
9p5694 Selector And Pressure Control Valve Group
9j0798 Relief Valve Group-Pilot Operated
9p5693 Selector And Pressure Control Valve Group
9P***93Valve Group-Selector & Press Cont1
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9t1074 Servo Valve Group
3g7421 Servo Valve Group
Service Equipment And Supplies
6s8638 Tool Group
Gasket Kits
5P***44Valve Grinding-Serial No.45v21898 To0
5P***45Central And Lower Structure0
5P***46Front Structure Serial No. 45v21898 To0
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5g0142 Gauge Group
8f9866 Grease Gun Group
3p2244 Hand Tool Group
Name Plates And Films-Part 2
2P***31Film--Cat On Each Side Of Radiator Guard; Film--Cat On Each Side--Above Drum Shaft2
2P***44Film-Caterpillar; On Front Of Radiator Guard1
5P***15Film-Warning (Backhoe) On Lower R.H.Side1
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Name Plates And Films-Part 1
2P***31Film--Cat On Each Side Of Radiator Guard; Film--Cat On Each Side--Above Drum Shaft1
3N***90Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine1
4B***58Screw (Identification Plate) Mounting2
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Starting And Electrical System
7n5140 Alternator Group
7N***40Alternator Group-Charging; Alternator Group1
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7n4784 Alternator Group-12 Volt, 40 Ampere
1w4263 Alternator Group
8n2822 Alternator Group-12 Volt, 75 Ampere
8N***68Alternator Group-Charging1
8N***22Alternator Group-Charging1
9S***73Circuit Breaker (60 Amps); Circuit Breaker-60 Ampere1
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8n2268 Alternator Group-12 Volt, 75 Ampere
5g0237 Battery And Wiring Group-12 Volt-Part 1 Of 3
5g0237 Battery & Wiring Gp-12 Volt-Part 1 Of 3
5g0237 Battery & Wiring Gp-12 Volt-Part 3 Of 3
5g0237 Battery & Wiring Gp-12 Volt-Part 2 Of 3
5g0237 Battery And Wiring Group-12 Volt-Part 3 Of 3
5g0237 Battery And Wiring Group-12 Volt-Part 2 Of 3
6s3548 Heavy Duty Battery Group
8y1223 Cover Gp-Rear
5g0301 Harness Assembly-Cab
5g3901 Harness Assembly
5g2059 Harness Assembly-Cab
5g0227 Harness Assembly
5g0229 Harness Assembly
5g1812 Electric Horn Group-Type 2
5g1812 Electric Horn Group-Type 1
5g1720 Lighting Group-12 Volt, 3 Lamp
5g2541 Ether Starting Aid Group
4n0241 Electric Starting Motor Group-12 Volt-Type 2
4n0190 Electric Starting Motor Group-12 Volt
4N***90Starting Motor Group-Electric; Electric Starting Motor Group1
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4n0241 Electric Starting Motor Group-12 Volt-Type 1
9g5517 Switch Assembly-12 Volt
4n6938 Switch Assembly
8n0410 Magnetic Switch Group-Type 2
8n0410 Magnetic Switch Group-Type 1
5g1678 Back-Up Warning Group
5g0457 Cab Wiring Group-Type 2
5G***57Wiring Group-Cab; Cab Wiring Group1
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5g0457 Cab Wiring Group-Part 1-Type 1
5G***57Wiring Group-Cab; Cab Wiring Group1
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5g0457 Cab Wiring Group-Part 2-Type 1
5G***57Wiring Group-Cab; Cab Wiring Group1
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Steering Clutches And Brakes
5g8728 Brake Gp-Steering-Part 2 Of 3
8y1087 Brake Gp-Steering-Part 2 Of 3
5g8728 Brake Gp-Steering-Part 1 Of 3
5g3182 Steering Brake Group-Part 2 Of 3
5g3182 Steering Brake Group-Part 1 Of 3
5g0008 Steering Brake Group-Part 2 Of 3
5g3182 Steering Brake Group-Part 3 Of 3
5g0008 Steering Brake Group-Part 1 Of 3
8y1087 Brake Gp-Steering-Part 1 Of 3
5g0008 Steering Brake Group-Part 3 Of 3
8y1087 Brake Gp-Steering-Part 3 Of 3
5g8728 Brake Gp-Steering-Part 3 Of 3
5g0997 Steering Clutch Case Group
5g6103 Case Gp-Steering Clutch
5g0997 Case Gp-Steering Clutch
6s3528 Steering Clutch Group
5g8725 Clutch Gp-Steering
5G***25Clutch Group-Steering; Clutch Gp-Steering Brake1
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5g4867 Steering & Decelerator Control Group-Part 2 Of 2
5G***67Control Group-Steer & Decelerator1
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5g4868 Steering And Decelerator Control Group-Part 2 Of 2
5G***68Control Group-Steer & Decelerator1
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5g4317 Steering And Decelerator Control Group-Part 1 Of 2
5G***17Control Group-Steer & Decelerator1
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5g4867 Steering & Decelerator Control Group-Part 1 Of 2
5G***67Control Group-Steer & Decelerator1
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5g4868 Steering & Decelerator Control Group-Part 1 Of 2
5G***68Control Group-Steer & Decelerator1
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5g4317 Steering And Decelerator Control Group-Part 2 Of 2
5G***17Control Group-Steer & Decelerator1
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5g3200 Steering And Decelerator Control Group-Part 2 Of 2
5G***00Control Group-Steer & Decelerator1
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5g3200 Steering And Decelerator Control Group-Part 1 Of 2
5G***00Control Group-Steer & Decelerator1
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5g1237 Control Gp-Steering Clutch-Part 1 Of 2
5g1237 Control Gp-Steering Clutch-Part 2 Of 2
5g1237 Steering Clutch Control Group - Part 2 Of 2
5g1237 Steering Clutch Control Group - Part 1 Of 2
5g1237 Steering Clutch Control Group-Part 2 Of 2
5g1237 Steering Clutch Control Group-Part 1 Of 2
5g1073 Brake Band Lining Group
5g8738 Steering Ar-Oil Clutch & Brake
1A***57Ball-Steering Clutch Release Yoke1
1M***23Insert-Steering Clutch Release Yoke1
5G***03Case Group-Steering Clutch1
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5g8121 Valve Gp-Control--Right
5g8120 Valve Gp-Control--Left
5g0145 Valve Gp-Control--Right
5g0706 Valve Gp-Control--Left

D3B serial number reference

The D3B PIN/serial plate is a stamped metal plate riveted to the main frame, commonly near the operator's station or ROPS mount, with the PIN also stamped directly into the frame steel as a backup. Read the first three characters as the prefix, which identifies the build series - direct-drive vs power-shift powertrain and Std vs LGP undercarriage - and the digits that follow as the sequential unit number built under that prefix.

PrefixIdentifies
3YCD3B Std/LGP, Direct Drive
5MCD3B Std/LGP, Direct Drive
23YD3B Std, Power Shift
24YD3B LGP, Power Shift
27YD3B Std, Power Shift
28YD3B Std/LGP, Power Shift
2PCD3B LGP SA (Special Application), Direct Drive

Frequently asked questions

What engine does the Caterpillar D3B use?

A naturally aspirated Cat 3204 four-cylinder diesel rated about 48.5 kW (65 hp) at 2400 rpm, displacing 5.2 L (318 cu in) with direct injection. A low-volume Special Application LGP variant (2PC serial prefix) used a turbocharged 3204 DI rated near 82 DBHP.

What is the operating weight of a Cat D3B?

It depends on configuration. Standard configuration with the 2.44 m (8 ft) blade runs about 6,876 kg (15,161 lb). LGP configuration with wider shoes and the 2.8 m (9.2 ft) blade runs about 7,637 kg (16,837 lb).

What replaced the Caterpillar D3B?

The D3C succeeded the D3B starting in 1987, followed later by the D3C II, D3C III, D3G, and D3K-generation small dozers. The D3B itself had replaced the earlier D3 in Caterpillar's small track-type tractor line.

What D3B owners discuss

What powertrain quirks do D3B owners report during extended operation?
After roughly 2 to 5 hours of continuous running, some 3204-powered D3Bs bog down or stall outright. Owners trace this most often to a plugged inlet screen on the fuel transfer pump - dirty tank fuel collects at the fine screen in the inlet fitting and starves the injection pump. A worn transfer pump also relies on small internal check valves that stick with debris and let fuel pressure fall off over a run. Air pulled in through a cracked hose or loose fitting between tank and transfer pump produces the same symptom. Clean or replace the inlet screen, inspect the transfer pump check valves, and pressure-test the low-pressure side for leaks before assuming an injection pump fault.
What are the known quirks of the D3B's engine?
The D3B ran the naturally aspirated Cat 3204, a mechanically governed 4-cylinder diesel rated around 48 kW (65 hp). Owners and mechanics note this block was cast without separate cylinder liners - cylinders can be bored oversize for wear, or fitted with liners later if the bores are damaged beyond that. Mechanics call out blow-by as a known trait even on otherwise healthy units; heavy oil consumption (several liters/quarts a day) is treated as a sign a rebuild is due rather than a fluke. Cold starting is another common complaint below about -1 degrees C (30 degrees F) - expect hard starts and plan on starting aid or block heat in freezing weather.
What undercarriage wear pattern is typical on a D3B?
As with other small track-type tractors of this era, undercarriage condition drives most of the D3B's ownership cost - chains, rollers, sprockets and idlers are commonly cited as making up the bulk of a used machine's value. A stretched chain is the most damaging failure: as pitch changes it accelerates sprocket wear and lets the chain run snake-like across the rollers, chewing up roller flanges and track guiding. Owners are advised to renew rollers and sprockets alongside the chain rather than piecemeal, since a new chain running on a worn sprocket (or the reverse) wears out fast. A visible gap between adjoining shoes with no overlap is a quick field check for a worn-out chain.
How do the steering clutches and brakes behave, and what fails?
Many D3Bs in the field use dry steering clutches with external brake bands, commonly paired with the 3-forward/1-reverse transmission (some configurations differ, so confirm your machine's clutch type - wet or dry - before adjusting). Bands need periodic tightening as they wear, and the linkage has a separate stop-bolt adjustment to keep the band from sagging out of position. A frequently cited high-failure item is the roller bearing on the ends of the steering control valve; when it goes, steering response gets inconsistent or one side drags. A one-sided steering complaint, such as a track that won't disengage when the pedal is pressed, is usually traced to a stuck clutch pack or maladjusted linkage rather than the valve. Because this system doubles as the service brake, have your dealer or a qualified technician verify clutch and brake adjustment before returning the machine to work.
What hydraulic behavior shows up on these dozers?
Blade drift and slow lift are the two complaints that come up most. Drift under load points to worn seals in the lift cylinder or a control valve that no longer holds - both let oil bypass internally once the blade is loaded. Slow lift with no drift points upstream instead: a restricted hydraulic filter, air trapped in the lines after service work, or a pump no longer making full flow. Working through cylinder seals and valve condition first, then filter and pump output, is the order owners report resolving most complaints without a full valve bank rebuild.
What electrical issues come up, given this machine predates modern engine sensors?
The D3B carries no ECM and no electronic sensors - issues stay limited to the basic charging and starting circuit: battery, cables, starter, solenoid, and alternator. The most reported failure is a melted or burned starter solenoid wire, usually traced back to a weak battery or corroded and loose connections forcing the starter to crank on low voltage and draw excess current. Standard diagnosis is checking voltage drop across each connection from battery to key switch to start circuit to solenoid - losing more than about 1 volt at any single connection points to a bad joint or corrosion there. Because melted wiring is a fire risk, have your dealer or a qualified electrician verify and properly repair any heat-damaged wiring rather than just cleaning it up.
What should a buyer check on a used D3B?
Walk the undercarriage first: look for a visible gap between adjoining track shoes (a sign of chain stretch) and uneven wear on rollers and idlers, since undercarriage condition drives most of the machine's resale value. Check engine oil consumption - some blow-by is normal for the 3204, but burning several liters/quarts a day signals a rebuild is close. Inspect the radiator and cooling fins for plugging, especially if the machine worked in topsoil, mulch, or peat, since fine material clogs the core and leads to chronic overheating. Test the brakes and steering clutches for excess pedal travel or pressure needed to turn, which points to bands due for adjustment or worn out. Confirm whether the machine has a decelerator pedal - some D3B configurations rely on hand throttle alone to slow down approaching a pile or obstacle, which changes how it drives. Finish with a full test drive under load and a check of hydraulic response (lift speed, drift) before agreeing on price.

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

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