Caterpillartrack-type tractor
Caterpillar D3C
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar D3C is a compact track-type tractor in Cat's D3 dozer class, sized for grading, utility work, and light-to-medium dozing on sites too tight for a D4 or D5. Caterpillar built it in three steps from 1987 to roughly 2001. The base D3C and D3C Series II run a Cat 3204 four-cylinder, 5.2 liter naturally aspirated diesel rated about 73 to 76 hp gross (67 to 70 hp net). The D3C Series III switched to a Cat 3046 six-cylinder, naturally aspirated diesel rated about 78 hp gross (71 hp net) and added a Hystat hydrostatic transmission option alongside the standard 3-speed powershift. Operating weight runs roughly 11,500 to 17,000 lb (5,200 to 7,700 kg) depending on series and configuration. Caterpillar offered Standard, LGP (low ground pressure), and XL (extended undercarriage) track frames, straight or angling blades, and open ROPS or enclosed heated and air-conditioned cabs. The D3C replaced the D3B (built 1979 to 1987) and was later succeeded by the D3G, then carried forward as the D3K, D3K2, and today's D3 in Cat's Next Generation small-dozer lineup.
Across the three D3C generations, the biggest change is the engine and drivetrain. Series III's move from the 3204 four-cylinder to the 3046 six-cylinder brought a small power increase and, on Hystat units, single-lever joystick steering instead of the mechanical steering clutch and brake used on the base machine and Series II. Blade capacity and undercarriage options stayed broadly similar across the run, so most of the practical differences owners feel come down to engine parts and transmission service rather than chassis geometry. The D3C matters in today's used and parts market because it is small, mechanically simple, and pre-electronic: no ECM, no aftertreatment, and few sensors to fail, which keeps it attractive for utility contractors, landscapers, and rental fleets running tight budgets. Its 3204 and 3046 engines were used across a wide range of other Cat machines, so wear parts and rebuild kits stay reasonably easy to source. The tradeoff is that parts interchange is series-specific: confirm whether a given unit is a base D3C, Series II, or Series III before ordering engine, transmission, or steering clutch 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 D3C specifications
Overview
| Machine type | Track-type tractor (crawler dozer), small dozer class |
| Production span | Approx. 1988-2003, spanning three build series (base D3C, Series II, Series III); Series III also offered with a Hystat hydrostatic drivetrain alongside the standard powershift |
| Configurations offered | Standard/XL (extended narrow track), LGP (Low Ground Pressure, wide track), and LGP-S (extra-wide special/swamp undercarriage); each available across the build series |
Engine
| Base and Series II engine | Cat 3204, 4-cylinder naturally aspirated diesel, 5.2 L (317.4 cu in) displacement, rated near 76 hp (57 kW) gross / 70 hp (52 kW) net at 2400 rpm |
| Earliest production engine rating | Early D3C units (late 1980s) are documented at a lower rating, around 73 hp gross / 67 hp net, before later production settled at the 76/70 hp figure — power rating varies by production date/series |
| Series III engine | Cat 3046, 6-cylinder naturally aspirated diesel, 5.0 L (305 cu in) displacement, rated 78 hp (58 kW) gross / 70-71 hp (52-53 kW) net at 2400 rpm. This is a genuine engine change tied to the Series III update, not a mix-up with the 3204 |
| Emissions | Pre-emissions-tier mechanical diesel across all series; no EPA/EU emissions certification tier applies to this generation |
Weights (by configuration)
| Standard/base, Series II | Approx. 15,435 lb (7,001 kg) operating weight |
| XL, Series III | Approx. 15,942 lb (7,230 kg) operating weight |
| Base, Series III (narrow track) | Approx. 15,518 lb (7,038 kg) operating weight |
| XL, Series III Hystat | Approx. 15,680 lb (7,112 kg) operating weight |
| LGP, Series II | Approx. 17,170 lb (7,787 kg) operating weight |
| LGP, Series III | Approx. 16,842 lb (7,639 kg) operating weight |
| LGP-S, Series II | Approx. 18,942 lb (8,592 kg) operating weight, heaviest configuration due to the widest undercarriage |
| General range across all configs/series | Roughly 15,400-19,000 lb (7,000-8,600 kg) depending on track width and series; earlier general listings also cite a broad 11,500-16,800 lb range that includes stripped/base weights without attachments |
Dimensions
| Length with blade, Standard/XL | Approx. 12.3-13.2 ft (3.75-4.02 m) depending on series/config |
| Length with blade, LGP | Approx. 13.2-13.4 ft (4.02-4.08 m) |
| Length with blade, LGP-S | Approx. 13.7 ft (4.18 m) |
| Length without blade | Approx. 9.1-9.9 ft (2.77-3.02 m) depending on configuration |
| Width over tracks, Standard/XL | Approx. 5.8-6.0 ft (1.78-1.83 m) |
| Width over tracks, LGP | Approx. 7.5-7.6 ft (2.29-2.32 m) |
| Width over tracks, LGP-S | Approx. 9.9 ft (3.0 m) |
| Height to top of cab | Approx. 8.75-8.9 ft (2.67-2.71 m) across all configurations |
| Ground clearance | Approx. 0.92-1.0 ft (0.28-0.30 m) |
| Track gauge, Standard/XL | Approx. 4.66-4.70 ft (1.42-1.43 m) |
| Track gauge, LGP | Approx. 5.42-5.50 ft (1.65-1.68 m) |
| Track gauge, LGP-S | Approx. 6.57 ft (2.0 m), widest gauge offered |
| Track shoe width, Standard/XL | 14 in (356 mm) standard; 16 in (406 mm) offered as an optional wider shoe |
| Track shoe width, LGP | 25 in (635 mm) low-ground-pressure shoe |
| Track shoe width, LGP-S | Approx. 39 in (990 mm), widest shoe offered, for very soft/swamp ground |
| Length of track on ground | Approx. 6.25-6.8 ft (1.9-2.07 m) on Standard/XL; up to 8.0 ft (2.44 m) on LGP-S |
Performance
| Travel speed, powershift transmission | 3 forward / 3 reverse gears; maximum approx. 6.7-6.8 mph (10.8-10.9 kph) forward, 7.1 mph (11.4 kph) reverse (top gear), across all powershift-equipped series/configs |
| Travel speed, Hystat (hydrostatic) transmission | Series III Hystat option: dual-path hydrostatic drive with infinitely variable speed control, maximum around 5.6 mph (9.0 kph) |
| Ground pressure, Standard/XL | Approx. 6.2-7.2 psi (43-50 kPa) depending on series and shoe width |
| Ground pressure, LGP | Approx. 4.1-4.2 psi (28-29 kPa) |
| Ground pressure, LGP-S | Approx. 2.5 psi (17 kPa), lowest of the range |
| Drawbar pull | Not published in available factory literature or spec aggregators for this model; a factory brochure references a drawbar-pull-vs-ground-speed curve but the discrete figures were not recoverable from accessible sources — confirm with a Cat dealer or the original Specalog for exact values |
| Gradeability | Not documented in available spec sheets for this model — verify with dealer/operator manual if needed |
Blades
| Standard/S blade (Standard, XL configs) | Width approx. 8.0-8.4 ft (2.44-2.55 m), height approx. 33 in (84 cm), capacity approx. 1.7 cu yd (1.3 cu m), cutting depth approx. 15.7 in (400 mm), angle 25 degrees both directions |
| LGP blade | Width approx. 10.4 ft (3.17 m), height approx. 29.5 in (75 cm), capacity approx. 1.7 cu yd (1.3 cu m), cutting depth approx. 15.7-16.7 in (400-425 mm), angle 25 degrees both directions |
| LGP-S blade | Width approx. 9.2 ft (2.80 m), height approx. 29.1 in (74 cm), capacity approx. 1.6 cu yd (1.2 cu m), cutting depth approx. 13.9 in (353 mm) |
| VPAT blade (Hystat option, Series III) | Variable Pitch Angle Tilt blade offered on the Hystat drivetrain: straight-blade width approx. 8.36 ft (2.55 m), dig depth approx. 17 in (432 mm), lift height approx. 30 in (762 mm), maximum tilt approx. 14 in (356 mm), maximum angle 25 degrees. Capacity figure not published for this blade type |
Service capacities
| Fuel tank | Approx. 30-32.3 gal (114-122 L), varies slightly by series/config |
| Hydraulic system | Approx. 15.0-15.1 gal (57 L) |
| Engine oil (with filter) | Approx. 3.2-3.5 gal (12-13.3 L); Series II 3204 engine runs slightly less than Series III 3046 engine |
| Cooling system | Reported figures vary by source, ranging from approx. 2.4 gal (9 L) to 5.3 gal (20 L) — verify against the correct series/engine before servicing |
| Final drives (each side) | Approx. 2.2 gal (8.3 L), reported for the Series II configuration |
| Hydraulic pump relief pressure | Approx. 2,500 psi (172 bar) |
| Hydraulic pump flow | Approx. 14.3-14.6 gal/min (54-55 L/min) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D3C fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 13.2 L (3.5 US gal) - documented for D3C Series III / D3C XL Series III; not separately confirmed for earlier D3C/Series II | Cat DEO (Diesel Engine Oil), multigrade. SAE 10W-30 for -18°C to 40°C (0°F to 104°F) ambient; SAE 15W-40 for -9.5°C to 50°C (15°F to 122°F) ambient. Single-grade SAE 30 or SAE 40 acceptable in stable, moderate ambient temperatures on this engine. |
| Cooling system | 9.1 L (2.4 US gal) | Cat DEAC (Diesel Engine Antifreeze/Coolant), glycol-based, protects to about -37°C (-34°F); needs periodic Supplemental Coolant Additive (SCA) conditioning on this era of machine. Cat ELC (Extended Life Coolant, OAT-based, no SCA needed) is an approved later-generation fill/refill alternative. |
| Fuel tank | 122 L (32.2-32.3 US gal) | No. 2-D diesel fuel. No. 1-D recommended in cold weather for better cold-flow and starting. |
| Powershift transmission case | 28.4 L (7.5 US gal) | Cat TDTO (Transmission/Drive Train Oil), TO-4 spec. SAE 10W below -20°C (-4°F); SAE 30 for -20°C to +25°C (-4°F to +77°F); SAE 50 for 0°C to +50°C (+32°F to +122°F). |
| Bevel gear and steering clutch compartment | about 15 L (4 US gal) - separate compartment from the transmission case; capacity varies by source and should be confirmed against the dipstick | Cat TDTO, TO-4 spec. Same SAE 10W/30/50 viscosity-by-ambient-temperature selection as the transmission case. |
| Final drives (each) | about 9.8 L (2.6 US gal) per side - aggregated spec data; some sheets report this figure as a combined total rather than per side, confirm at the level plug | Cat TDTO, TO-4 spec. Heavier grade (SAE 30-50, chosen by ambient temperature) is typical in final drive/gear compartments. |
| Hydraulic system/tank | 57.2 L (15.1 US gal) | Cat TDTO, TO-4 spec - this tractor's implement hydraulics share power-train oil rather than a dedicated hydraulic fluid. Same SAE 10W/30/50 viscosity-by-temperature guidance applies. Cat HYDO-family hydraulic oil is an accepted alternative for this duty. |
| Pivot shaft | not separately listed in the available capacity data for this model - check level at the plug | Serviced with the same TO-4 spec Cat TDTO oil used through the rest of the power train and final drive system on this tractor. |
| Grease (all fittings) | applied per fitting as needed - no reservoir capacity | Cat MPGM (Multipurpose-type Grease) containing 3-5% molybdenum disulfide. NLGI No. 2 for most ambient temperatures; NLGI No. 1 or No. 0 for extreme cold. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar D3C 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 |
|
| Every 6,000 h |
|
Servicing the D3C beyond the schedule
Predictive Maintenance & Fluid Analysis
The D3C's 3204 or 3046 diesel runs mechanical fuel injection with no ECM, so there are no fault codes to watch. Build a routine oil sampling program instead: pull engine, transmission/hydraulic, and final drive samples at each scheduled interval and trend wear metals, so contamination shows up before a steering clutch, final drive bearing, or injection pump fails outright. Watch coolant condition closely too, since these small naturally aspirated engines run hot in dusty grading work and scale buildup in the radiator core is a common early warning sign.
Corrective & Common Repairs
Steering clutch and brake wear is the D3C's signature repair, since base and Series II units steer through clutch packs and band brakes rather than a joystick. Expect band adjustment and eventual clutch disc replacement on higher hour machines. Other frequent jobs: final drive seal leaks at the sprocket housing, track adjuster grease cylinder leaks, radiator core cleaning after dusty use, and injection pump or injector service on the 3204/3046 mechanical fuel system. Hystat equipped Series III units instead see hydrostatic pump and motor wear as the main steering complaint.
Overhaul & Rebuild Points
Major rebuild points center on the undercarriage and drivetrain rather than the engine. Track chains, rollers, idlers, and sprockets wear out well before the 3204 or 3046 needs an inframe overhaul, so budget for undercarriage renewal first. Steering clutch and brake packs, plus the planetary final drives, are the next wear tier and typically get rebuilt as matched sets. When the engine does need work, both the 3204 and 3046 are naturally aspirated with no turbo to service, which keeps an inframe rebuild comparatively straightforward for this class of machine.
Seasonal & Environment Servicing
Cold climates need extra attention to the mechanical injection pump on both engines: use a proper winter grade fuel blend to prevent gelling, check the block heater and coolant concentration before freeze-up, and expect to use an ether starting aid on hard cold starts. In hot, dusty grading or land clearing work, shorten air cleaner and radiator cleaning intervals and check the steering clutch and brake compartment oil more often, since fine dust accelerates wear there. In wet or soft ground, an LGP configured D3C reduces sinkage but needs closer final drive seal checks for water intrusion.
D3C common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 6V-7614 | Film-Identification | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D3C fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| COOLANT TEMPERATURE (red warning lamp) | Engine coolant temperature has risen above the safe operating range. | Low coolant level, debris-clogged radiator core or screen, loose or broken fan belt, faulty water-temperature sending unit, or a thermostat stuck closed. | Idle the engine, check coolant level and radiator fins/screen for blockage, check belt condition and tension, and verify the sending unit with a test gauge before condemning the engine. |
| ENGINE OIL PRESSURE (red warning lamp) | Engine lubrication oil pressure has dropped below the minimum safe threshold. | Low oil level, plugged oil filter, worn oil pump, or a failed oil-pressure sending unit/switch. | Shut the engine down at once, check oil level and filter condition, and confirm the reading with a mechanical test gauge before restarting or condemning the pump. |
| CHARGING SYSTEM (alternator warning lamp) | The alternator is not charging the battery; the machine is running on battery power only. | Slipping or broken alternator belt, failed alternator or regulator, or loose/corroded wiring at the alternator or battery. | Check belt tension and condition, inspect wiring and connections for corrosion, and bench-test or replace the alternator as needed. |
| TORQUE CONVERTER / TRANSMISSION OIL TEMPERATURE (warning lamp or gauge in red band) | Powertrain oil temperature (torque converter/powershift, or hydrostatic drive oil on Hystat-equipped units) has exceeded the normal operating range. | Low transmission/hydraulic oil level, restricted oil cooler, prolonged lugging under heavy load, or a faulty temperature sending unit. | Reduce load and let the system cool, check oil level and inspect the cooler for restriction, and verify the sending unit before further diagnosis. |
| AIR CLEANER RESTRICTION indicator | Intake air filter restriction has reached the service limit. | Dirty or clogged primary air filter element, a collapsed element, or restricted intake ducting. | Inspect and clean or replace the air filter element, check ducting for damage or blockage, and reset the indicator. |
| HYDRAULIC/TRANSMISSION FILTER BYPASS indicator | The hydraulic or transmission oil filter has gone into bypass, allowing unfiltered oil to circulate. | Plugged filter element, cold/thickened oil not yet at operating temperature, or internal contamination from component wear. | Replace the filter element, confirm the oil is the correct grade and at proper operating temperature, and inspect for a wear source if bypassing recurs. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D3C attachments & work tools
Blades
D3C dozers mount straight/semi-U style blades across three undercarriage widths: standard-track, XL, and LGP (low ground pressure). Standard and XL blades run about 2.5 m (8.2-8.4 ft) wide with roughly 1.3 m3 (1.7 yd3) capacity and 25-degree angle both directions; LGP tractors carry a wider blade near 3.2 m (10.4 ft) at a comparable capacity rating for flotation work on soft ground. Series III machines added a VPAT (variable pitch, angle, tilt) 6-way blade with box-section reinforcement for finish grading, ditching, and light land clearing alongside the fixed straight blade; exact dig-depth and lift figures vary by blade type and series.
Rippers
A rear parallelogram ripper is offered, shared across the D3B/D3C/D4B/D4C/D5C small-dozer family, and mounts in single-shank or multi-shank frame form. Single-shank setups suit hard, frozen, or rocky ground and root/stump removal; multi-shank frames trade penetration depth for faster coverage in shallower hard or frozen soil. Fitting the ripper group adds roughly 500-550 kg (1,100-1,200 lb) to operating weight, and the ripper cylinders draw off the tractor's own implement hydraulic circuit through an added rear control valve.
Winches
No factory hydrostatic retrieval winch is documented for the D3C generation itself; that style of Cat retrieval winch belongs to the later K-series small dozers, not the D3C. Period dealer/aftermarket hydraulic winches sized for the D3-D5 class, with max line pull in the neighborhood of 15-16 t (roughly 34,000-35,000 lb), were the normal way to add towing or self-recovery capability to a D3C, driven off the machine's own hydraulic system rather than a mechanical PTO drum.
Drawbars/counterweights
A rear drawbar and counterweight group is available to rebalance the tractor when a rear ripper or winch is fitted, and a front counterweight option can offset the heavier LGP or VPAT blade configurations. Published counterweight figures are thin and configuration-dependent, so treat any specific weight as a starting point to confirm against the exact attachment combination rather than a fixed spec.
Cab/ROPS guarding
The D3C is offered with either an open ROPS canopy or an enclosed, sealed and pressurized ROPS cab. Forestry and waste-handling configurations add bolt-on screens, sweeps, and rear/side guarding plus a rear tank/engine guard to keep debris off moving parts and glass; these guard packages follow the same style used across Cat's small-dozer ROPS line rather than a design unique to the D3C, so fitment should be checked against the specific ROPS frame on the machine.
Hydraulic arrangement (front/rear tools)
Standard power-shift D3C tractors use a single gear pump, around 54 L/min (14.3 gpm) at 17,237 kPa (2,500 psi), that feeds the front blade lift/tilt/angle circuit. Adding a rear ripper taps the same pump through its own control valve and cylinder circuit routed to the back of the machine. The Hystat (hydrostatic-drive) D3C variant keeps travel drive on its own dual, closed-loop piston-pump circuit separate from the gear-pump-fed implement hydraulics, so front-blade or rear-ripper use does not rob travel performance.
All D3C assemblies by section
Every catalogued assembly group for the Caterpillar D3C. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
7w8765 Air Cleaner Gp
| 7W***65 | Air Cleaner Group | 1 |
7w8764 Air Cleaner Gp
| 7W***64 | Air Cleaner Group | 1 |
7e0831 Exhaust Extension Gp
| 7E***31 | Extension Group-Exhaust | 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 |
4n5202 Muffler Gp
| 4N***02 | Muffler 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 |
Crankshaft Bearing Replacements
| 1W***55 | Bearing (0.25mm Undersize) | 2 |
| 1W***56 | Bearing (0.51mm Undersize) | 2 |
| 1W***57 | Bearing (1.27mm Undersize) | 2 |
2w8368 Crankshaft Gp
| 2W***68 | Crankshaft Group; Crankshaft Group | 1 |
1w4327 Cylinder Block As
| 1W***27 | Cylinder Block As | 1 |
2w7902 Cylinder Block As
| 2W***02 | Cylinder Block As | 1 |
1w4326 Cylinder Block Gp
| 1W***26 | Cylinder Block Group; Cylinder Block Group | 1 |
7w9390 Cylinder Head As
| 7W***90 | Cylinder Head As | 1 |
7c3805 Cylinder Head As*R
| 7C***05 | Cylinder Head As | 1 |
7c2296 Cylinder Head As
| 7C***96 | Cylinder Head As | 1 |
7c2320 Cylinder Head As*R
| 7C***20 | Cylinder Head As | 1 |
7w9392 Cylinder Head Gp *R
| 7W***92 | Cylinder Head Group | 1 |
6n2467 Cylinder Head Gp *R
| 6N***67 | Cylinder Head Group; Cylinder Head Group | 1 |
7n5141 Drive Gp-Fan
| 7N***41 | Drive Group-Fan; Water Pump Drive Group | 1 |
4n0184 Flywheel Gp
| 4N***84 | 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 |
4n0300 Support Gp-Engine & Transmission
| 4N***00 | Support Group-Engine & Tmsn | 1 |
1w5720 Valve Mechanism Gp
| 1W***20 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Cab, Gauges And Accessories
8y2320 Gauge Gp-Part 1 Of 2
| 8Y***20 | Gauge Group; Gauge Gp | 1 |
8y2320 Gauge Gp-Part 2 Of 2
| 8Y***20 | Gauge Group; Gauge Gp | 1 |
5g0142 Gauge Gp
| 5G***42 | Gauge Group | 1 |
8y2322 Guard Gp-Vandalism
| 8Y***22 | Guard Group-Vandalism; Guard Gp-Vandalism | 1 |
8y1356 Guard Gp-Vandalism
| 8Y***56 | Guard Group-Vandalism | 1 |
8y0881 Rops Ar-Enclosed
| 5G***01 | Rops Ar; Rollover Ar | 1 |
| 5G***37 | Heater Group-Cab; Cab Heater Group | 1 |
| 5G***93 | Mounting Group-Cab | 1 |
8y1147 Rops Ar-Open
| 5G***21 | Mounting Group-Rops | 1 |
| 5G***73 | Rops Group | 1 |
| 8Y***47 | Rops Ar-Open | 1 |
8y1177 Seat & Support Gp
| 8Y***77 | Seat & Support Group | 1 |
8y0218 Seat & Support Gp
| 8Y***18 | Seat & Support Group | 1 |
8y4037 Seat Belt Gp
| 8Y***37 | Seat Belt Group | 1 |
7v9506 Belt Gp-Seat
| 7V***06 | Seat Belt Group | 1 |
7v9507 Belt Gp-Seat
| 7V***07 | Seat Belt Group | 1 |
6s9800 Cab Gp-Part 3 Of 4
| 6S***00 | Cab Group; Cab Group | 1 |
6s9800 Cab Gp-Part 2 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 |
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 1 Of 2
| 5G***00 | Door Group-Rh | 1 |
5g0200 Door Gp-R.H.-Part 2 Of 2
| 5G***00 | Door Group-Rh | 1 |
8m7892 Gauge As-Ammeter
| 8M***92 | Gauge As-Ammeter; (Ammeter) | 1 |
8y1708 Guard Gp-Radiator
| 8Y***08 | Guard Group-Radiator | 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 1 Of 3
| 5G***55 | Pressurizer Group-Cab | 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 |
8y2526 Rops Ar
| 5G***01 | Rops Ar; Rollover Ar | 1 |
| 5G***37 | Heater Group-Cab; Cab Heater Group | 1 |
| 5G***93 | Mounting 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 |
6s7596 Seat Gp-Part 1 Of 2
| 6S***96 | 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 |
8y2967 Suppression Ar-Sound
| 4B***53 | Screw-Drive | 4 |
| 4B***58 | Screw (Identification Plate) Mounting | 4 |
| 7X***72 | Plate Group (Exterior Sound) | 1 |
8y1153 Suppression Ar-Sound
| 4N***02 | Muffler Group | 1 |
| 5G***62 | Liner Group-Sound Suppression | 1 |
| 5G***25 | Suppression Group-Sound; Sound Suppression Group | 1 |
5g2925 Suppression Gp-Sound
| 5G***25 | Suppression Group-Sound; Sound Suppression 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 |
Chassis And Undercarriage
1u0020 C-Frame Gp
| 1U***20 | C-Frame Group; C-Frame Group | 1 |
3g3440 Frame Gp-C
| 3G***40 | C-Frame Group | 1 |
1u0020 Frame Gp-C
| 1U***20 | C-Frame Group; C-Frame Group | 1 |
8y2319 Dash Gp
| 8Y***19 | Dash Group; Dash Gp | 1 |
8y2318 Firewall Gp
| 8Y***18 | Firewall Group; Firewall Gp | 1 |
8y2324 Firewall Gp
| 8Y***24 | Firewall Group | 1 |
8y1564 Firewall Gp
| 8Y***64 | Firewall Group | 1 |
8y0224 Frame Gp-Track Roller
| 8Y***24 | Frame Group-Track Roller | 1 |
8y1026 Frame Gp-Track Roller
| 8Y***26 | Frame Group-Track Roller | 1 |
8y1103 Frame Gp-Track Roller
| 8Y***03 | Frame Group-Track Roller | 1 |
8y0268 Guard Gp-Track Roller
| 8Y***68 | Guard Group-Track Roller | 1 |
6y2520 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) | 144 |
| 5A***87 | Bolt-Track-( 9/16 X 18 X 3.0 In) | 4 |
| 6Y***28 | Shoe-Track | 36 |
6y1679 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) | 78 |
| 5P***83 | Bolt-Track-(9/16 X 18 X 4.3 In) | 2 |
6y1675 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***13 | Requirements | 1 |
9n4201 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) | 144 |
| 5A***87 | Bolt-Track-( 9/16 X 18 X 3.0 In) | 4 |
| 6Y***11 | Link As-Track | 1 |
6y2521 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) | 144 |
| 5A***87 | Bolt-Track-( 9/16 X 18 X 3.0 In) | 4 |
| 6Y***81 | Shoe-Track | 36 |
6s9359 Cleaner Bar Gp-Track
| 6S***59 | Cleaner Bar Group | 1 |
5g0441 Counterweight Gp-Front
| 5G***41 | Counterweight Group-Front | 1 |
6s8902 Counterweight Gp-Idler
| 6S***02 | Counterweight Group-Idler | 1 |
| 6Y***68 | Idler & Bearing As | 2 |
5g0779 Drawbar Gp
| 5G***79 | Drawbar Group; (Fixed) | 1 |
5g5317 Drawbar Gp-Swinging
| 5G***17 | Drawbar Group-Swinging | 1 |
5g0262 Frame Gp-Track Type Tractor
| 5G***62 | Frame Group | 1 |
5g1185 Guard Gp-Bottom
| 5G***85 | Guard Group-Bottom | 1 |
5g2342 Guard Gp-Brush-Side
| 5G***42 | Guard Group-Brush | 1 |
5g2327 Guard Gp-Brush-Rear
| 5G***27 | Guard Group-Brush | 1 |
8y0743 Guard Gp-Radiator
| 8Y***43 | Guard Group-Radiator | 1 |
6s8323 Guard Gp-Radiator
| 6S***23 | Guard Group-Radiator Hinged | 1 |
6s6166 Guard Gp-Hinged Radiator
| 6S***66 | Guard Group-Radiator Hinged; Radiator Hinger Guard Group | 1 |
5g0381 Guard Gp-Recoil Mechanism
| 5G***81 | Guard Group-Recoil Mechanism | 1 |
5g4371 Guard Gp-Recoil
| 5G***71 | Guard Group-Recoil Mechanism | 1 |
8y2309 Hood & Guard Gp
| 8Y***09 | Hood & Guard Group | 1 |
8y1652 Hood & Guard Gp
| 8Y***52 | Hood & Guard Group | 1 |
8y0216 Hood & Guard Gp
| 8Y***16 | Hood & Guard Group | 1 |
8y5244 Hood & Guard Gp
| 8Y***44 | Hood & Guard Group | 1 |
8y2327 Hood & Guard Gp
| 8Y***27 | Hood & Guard Group | 1 |
6s3864 Hook Gp-Front Pull
| 6S***64 | Hook Group-Front Pull | 1 |
6y1368 Idler & Bearing As
| 6S***95 | Bearing Assembly | 2 |
| 6S***33 | Bearing | 1 |
| 6Y***68 | Idler & Bearing As | 1 |
5g4380 Idler Gp-Front-Part 2 Of 2
| 5G***80 | Idler Group-Front | 1 |
5g4380 Idler Gp-Front-Part 1 Of 2
| 5G***80 | Idler Group-Front | 1 |
6s7272 Idler Gp-Front-Part 2 Of 2
| 6S***72 | Idler Group-Front | 1 |
6s7272 Idler Gp-Front-Part 1 Of 2
| 6S***72 | Idler Group-Front | 1 |
5g2362 Liner Gp-Sound
| 5G***62 | Liner Group-Sound Suppression | 1 |
6y1511 Link As-Track
| 6Y***11 | Link As-Track | 1 |
6y1512 Link As-Track
| 6Y***12 | Link As-Track | 1 |
6y1510 Link As-Track
| 6Y***10 | Link As-Track | 1 |
5g2293 Mounting Gp-Cab
| 5G***93 | Mounting Group-Cab | 1 |
5g0521 Mounting Gp-Rops
| 5G***21 | Mounting Group-Rops | 1 |
3t4352 Roller Gp-Single Flange
| 3T***52 | Roller Group-Track; Single Flange Track Roller Group | 1 |
3t4353 Roller Gp-Double Flange
| 3T***53 | Roller Group-Track; Double Flange Track Roller Group | 1 |
6s3609 Roller Gp-Track Carrier
| 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 |
8y2911 Spring Gp-Recoil
| 8Y***11 | Spring Group-Recoil | 1 |
5g0379 Support Gp-Undercarriage
| 5G***79 | Support Group-Undercarriage | 1 |
5g0378 Support Gp-Undercarriage
| 5G***78 | Support Group-Undercarriage | 1 |
5g3575 Suppression Gp
| 5G***75 | Suppression Group-Sound | 1 |
8y0872 Sweep Gp
| 8Y***72 | Sweep Group | 1 |
Cooling System
1n4903 Cooler Gp-Engine Oil
| 1N***03 | Cooler Group-Engine Oil; Engine Oil Cooler Group | 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 |
5g2690 Lines Gp-Torque Converter Cooler
| 5G***90 | 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 |
9y0794 Radiator Gp
| 9Y***94 | Radiator Group | 1 |
7c7740 Radiator Gp
| 7C***40 | Radiator Group | 1 |
9y0795 Radiator Gp
| 9Y***95 | Radiator Group | 1 |
8n5864 Radiator Gp
| 8N***64 | Radiator Group | 1 |
8n4077 Radiator Gp
| 8N***77 | Radiator Group; Radiator Group | 1 |
7c7741 Radiator Gp
| 7C***41 | Radiator Group | 1 |
Engine Arrangement
9y1876 Engine Ar-Part 1 Of 2
| 1N***24 | Filter Group-Oil; Oil Filter Group | 1 |
| 1N***03 | Cooler Group-Engine Oil; Engine Oil Cooler Group | 1 |
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
9y1876 Engine Ar-Part 2 Of 2
| 1W***05 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
| 1W***54 | Lines Group-Air; Air Lines Group | 1 |
| 1W***54 | Lifting Group | 1 |
Fuel System And Governor
8y0115 Control Gp-Decelerator-Part 2 Of 2
| 8Y***15 | Control Group-Decelerator | 1 |
8y0115 Control Gp-Decelerator-Part 1 Of 2
| 8Y***15 | Control Group-Decelerator | 1 |
6s8967 Control Gp-Governor
| 6S***67 | Control Group-Governor | 1 |
8y1150 Control Gp-Governor
| 8Y***50 | Control Group-Governor | 1 |
2w0262 Camshaft As
| 2W***62 | Camshaft As | 1 |
5g3612 Cap Gp-Fuel Tank Protection
| 5G***12 | Cap Group-Protection; Fuel Filler Protection Cap Group | 1 |
5g2499 Extension Gp
| 5G***99 | Extension Group | 1 |
7e3734 Filter Gp-Fuel
| 7E***34 | Filter Group-Fuel | 1 |
9y1897 Filter Gp-Fuel
| 9Y***97 | 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 |
1w4105 Lines Gp-Fuel Injection
| 1W***05 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
7n0042 Lines Gp-Fuel Injection
| 7N***42 | Lines Group-Fuel Injection | 1 |
1w6539 Pump Gp-Fuel Injection
| 1W***39 | Pump Group-Fuel Injection | 1 |
2w0263 Pump Gp-Fuel Injection
| 2W***63 | Pump Group-Fuel Injection | 1 |
4n4314 Pump Gp-Fuel Priming
| 4N***14 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
1w0568 Pump Gp-Fuel Transfer
| 1W***68 | Pump Group-Fuel Transfer | 1 |
2w4403 Pump Gp-Fuel Transfer
| 2W***03 | Pump Group-Fuel Transfer; Fuel Transfer Pump Group | 1 |
7w0189 Governor & Fuel Injection Pump Gp
| 7W***89 | Pump Group-Gov & Fuel Inj; Governor & Fuel Injection Pump Group | 1 |
8y0217 Tank Gp-Fuel
| 8Y***17 | Tank Group-Fuel | 1 |
4w5063 Torque Control Gp
| 4W***63 | Torque Control Group | 1 |
Hydraulic System
9j8698 Cylinder Gp-Angling-2 Required (Chg. 02)
| 9J***98 | Angling Cylinder Group; Angling Cylinder Group | 1 |
8y0637 Control Gp-Hydraulic Hand
| 8Y***37 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
8y0242 Control Gp-Hydraulic Hand
| 6S***91 | Film-Instruction; Film-To Top Of Hydraulic Tank | 1 |
| 8Y***42 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
| 8Y***37 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
8y0639 Control Gp-Hydraulic Hand
| 8Y***39 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
8y0238 Control Gp-Hydraulic Hand
| 6S***54 | Film-Instruction; (Instruction) | 1 |
| 8Y***38 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
| 8Y***37 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
8y0245 Control Gp-Hydraulic Hand
| 6S***91 | Film-Instruction; Film-To Top Of Hydraulic Tank | 1 |
| 8Y***45 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
| 8Y***37 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
8y0638 Control Gp-Hydraulic Hand
| 8Y***38 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
8y0243 Hydraulic Ar-4 Valve
| 8J***12 | Pump Group-Gear; Gear Pump Group-Single Section | 1 |
| 8Y***43 | Hydraulic Ar | 1 |
| 8Y***44 | Valve & Mounting Group; Valve & Mounting Gp | 1 |
8y0240 Hydraulic Ar-3 Valve
| 8J***12 | Pump Group-Gear; Gear Pump Group-Single Section | 1 |
| 8Y***40 | Hydraulic Ar | 1 |
| 8Y***41 | Valve & Mounting Group; Valve & Mounting Gp | 1 |
8y0236 Hydraulic Ar-2 Valve
| 8J***12 | Pump Group-Gear; Gear Pump Group-Single Section | 1 |
| 8Y***36 | Hydraulic Ar | 1 |
| 8Y***37 | Valve & Mounting Group; Valve & Mounting Gp | 1 |
7j9223 Cylinder Gp-Lift (Chgs. 01-09)
| 7J***23 | Lift Cylinder Group | 1 |
8y0256 Lines Gp-Angle
| 8Y***56 | Lines Group-Angle Cylinder; Lines Gp-Angle | 1 |
8y0257 Lines Gp-Angle Cylinder
| 8Y***57 | Lines Group-Angle Cylinder; Lines Gp-Angling Cylinder | 1 |
8y0258 Lines Gp-Lift Cylinder
| 8Y***58 | Lines Group-Lift Cylinder; Lines Gp-Lift Cylinder | 1 |
8y0263 Lines Gp-Lift Cylinder
| 8Y***63 | Lines Group-Lift Cylinder; Lines Gp-Lift Cylinder | 1 |
8y0247 Lines Gp-Pump
| 8Y***47 | Lines Group-Pump; Lines Gp-Pump | 1 |
8y0246 Lines Gp-Rear Attachment
| 8Y***46 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment | 1 |
8y0259 Lines Gp-Tilt Cylinder
| 8Y***59 | Lines Group-Tilt Cylinder; Lines Gp-Tilt Cylinder | 1 |
8y0260 Lines Gp-Tilt Cylinder
| 8Y***60 | Lines Group-Tilt Cylinder; Lines Gp-Tilt Cylinder | 1 |
8y0264 Lines Gp-Tilt Cylinder
| 8Y***64 | Lines Group-Tilt Cylinder; Lines Gp-Tilt Cylinder | 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 (Chgs. 00-04)
| 9J***74 | Tilt Cylinder Group; Tilt Cylinder Group | 1 |
8y0244 Valve & Mounting Gp
| 8Y***44 | Valve & Mounting Group; Valve & Mounting Gp | 1 |
8y0241 Valve & Mounting Gp
| 8Y***41 | Valve & Mounting Group; Valve & Mounting Gp | 1 |
8y0237 Valve & Mounting Gp
| 8Y***37 | Valve & Mounting Group; Valve & Mounting Gp | 1 |
9t7250 Valve Gp-4 Valve
| 9T***50 | Valve Group-Bank; Valve Gp-Bank | 1 |
9t7248 Valve Gp-2 Valve
| 9T***48 | Valve Group-Bank; Valve Gp-Bank | 1 |
9t7249 Valve Gp-3 Valve
| 9T***49 | Valve Group-Bank | 1 |
9t7642 Valve Gp-Control
| 9T***42 | Valve Group-Control; -Angle, Tilt | 1 |
9t7641 Valve Gp-Control
| 9T***41 | Valve Group-Control; -Ripper | 1 |
9t7651 Valve Gp-Control
| 9T***51 | Valve Group-Control; -Hoist | 1 |
9t7638 Valve Gp-Relief
| 9T***38 | Valve Group-Relief; (Pilot Operated) | 1 |
9t7639 Valve Gp-Relief
| 9T***39 | Valve Group-Relief; (Direct Operated) | 1 |
8j6894 Cylinder Gp-Lift-2 Required (Chg. 01)
| 8J***94 | Cylinder Group-Lift; Lift Cylinder Group | 1 |
7j9920 Cylinder Gp-Ripper (Chgs.06,07)
| 7J***20 | Cylinder Group-Ripper | 1 |
7j9920 Cylinder Gp-Ripper (Chg.08)
| 7J***20 | Cylinder Group-Ripper | 1 |
6s3559 Lines Gp-Ripper
| 6S***59 | Lines Group-Ripper; Ripper Lines Group | 1 |
8j4512 Pump Gp-Gear
| 8J***12 | Pump Group-Gear; Gear Pump Group-Single Section | 1 |
3g5385 Pump Gp-Gear
| 3G***85 | Pump Group-Gear | 1 |
8j4513 Pump Gp-Gear
| 8J***13 | Pump Group-Gear | 1 |
5g0099 Tank & Filter Gp-Hydraulic
| 5G***99 | Tank & Filter Group | 1 |
5g0013 Tank Gp-Hydraulic
| 5G***13 | Tank Group-Hydraulic | 1 |
6s4767 Valve Gp-Breaker Relief
| 6S***67 | Valve Group-Breaker Relief | 1 |
9t7634 Valve Gp-Check
| 9T***34 | Valve Group-Check; -Makeup | 1 |
Implements
3g3429 Blade Gp-Angling
| 3G***29 | Angling Blade Group; Angling Blade Group | 1 |
3g3353 Cutting Edge & Bit Gp
| 3G***53 | Bit And Cutting Edge Group | 1 |
6y2820 Bulldozer Ar-Power Angling & Tilt
| 1U***20 | C-Frame Group; C-Frame Group | 1 |
| 4T***73 | Blade Group-Angling; Angling Blade Group | 1 |
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
6y2822 Bulldozer Ar-Power Angling & Tilt
| 3G***29 | Angling Blade Group; Angling Blade Group | 1 |
| 3G***40 | C-Frame Group | 1 |
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
6y2821 Bulldozer Ar-Straight
| 1U***72 | Lift Group-Blade; Blade Lift Group | 1 |
| 6S***51 | Mounting Group-Trunnion; Trunnion Mounting Group | 1 |
| 6S***47 | Support Group | 1 |
5g0269 Mounting Gp-Trunnion
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
8j7147 Bit & Cutting Edge Gp
| 8J***47 | Bit & Cutting Edge Group | 1 |
4t3473 Blade Gp-Angling
| 4T***73 | Blade Group-Angling; Angling Blade Group | 1 |
8j7126 Blade Gp-Straight
| 8J***26 | Blade Group-Straight; Straight Blade Group | 1 |
8j6893 Cylinder Gp-Tilt (Chg 05)
| 8J***93 | Cylinder Group-Tilt | 1 |
8j6893 Cylinder Gp-Tilt (Chgs. 01-04)
| 8J***93 | Cylinder Group-Tilt | 1 |
8j7146 Edge Gp-Cutting
| 8J***46 | Edge Group-Cutting | 1 |
1u4372 Lift Gp-Blade
| 1U***72 | Lift Group-Blade; Blade Lift Group | 1 |
9j2833 Link As
| 9J***33 | Link As; Link Assembly | 1 |
8j3294 Mounting Gp-Ripper
| 8J***94 | Mounting Group-Ripper; Ripper Mounting Group | 1 |
6s7351 Mounting Gp-Trunnion
| 6S***51 | Mounting Group-Trunnion; Trunnion Mounting Group | 1 |
8j7124 Arm Gp-Push
| 8J***24 | Push Arm Group; Push Arm Group | 1 |
9j9005 Ripper Ar
| 2P***17 | Film-D3 Ripper | 1 |
| 6S***59 | Lines Group-Ripper; Ripper Lines Group | 1 |
| 7J***20 | Cylinder Group-Ripper | 1 |
8j3334 Ripper Gp
| 8J***34 | Ripper Group; Ripper Group | 1 |
8j5313 Tooth Gp
| 8J***13 | Tooth Group | 1 |
8j7127 Trunnion Gp
| 8J***27 | Trunnion Group; Trunnion Gp-Bulldozer | 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 |
9y1898 Fumes Disposal Gp
| 9Y***98 | Fumes Disposal Group; Fumes Disposal Group | 1 |
1w0367 Gauge Gp-Oil Level (Dipstick)
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
1w0367 Gauge Gp-Oil Level(Dipstick)
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
7w0332 Kit-Pcv Breather
| 7W***32 | Kit-Pcv Breather | 1 |
2w6697 Pump Gp-Oil-Without Housing
| 2W***97 | Pump Group-Oil-Without Housing | 1 |
Power Train-Power Transmission Unit
6y5504 Adapter Gp-Sprocket
| 6Y***04 | Adapter Group-Sprocket | 1 |
6s3530 Gear Gp-Bevel
| 6S***30 | Bevel Gear Group | 1 |
9p3434 Control Gp-Transmission Oil System
| 9P***34 | Control Group-Tmsn Oil System; Control Gp-Transmission Oil System | 1 |
6s8966 Control Gp-Transmission-Part 1 Of 2
| 6S***66 | Control Group-Transmission | 1 |
6s8966 Control Gp-Transmission-Part 2 Of 2
| 6S***66 | Control Group-Transmission | 1 |
7g6821 Covers Gp-Shipping
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 6 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 1D***17 | Nut-Plate And Angle Assembly To Hydraulic And Fuel Tanks; Nut Plate And Angle Assembly To Hydraulic And Fuel Tanks | 6 |
5g0462 Filler Gp-Power Train Oil
| 5G***62 | Filler Group-Power Train Oil | 1 |
8y0231 Final Drive Gp
| 8Y***31 | Final Drive Group | 1 |
8y0230 Final Drive Gp
| 8Y***30 | Final Drive Group | 1 |
Gasket Kits
| 6V***13 | Hydraulic Control | 0 |
| 6V***17 | Planetary Transmission | 0 |
| 6V***20 | Transfer Gear | 0 |
7g6820 Case & Transfer Gear Gp
| 7G***20 | Gear & Case Group-Transfer | 1 |
2p2945 Planetary Gp-Part 2 Of 2
| 2P***45 | Planetary Group | 1 |
2p2945 Planetary Gp-Part 1 Of 2
| 2P***45 | Planetary Group | 1 |
9p2653 Pump Gp-Gear
| 9P***53 | Pump Group-Gear | 1 |
6y2047 Segment Gp-Sprocket-2 Required
| 6Y***47 | Segment Group-Sprocket | 1 |
1t1045 Torque Converter Gp
| 1T***45 | Torque Converter Group | 1 |
7g6822 Transmission Ar
| 7G***22 | Transmission Ar | 1 |
3p3470 Valve Gp-Selector & Pressure Control
| 3P***70 | Valve Group | 1 |
Service Equipment And Supplies
Name Plates And Films
| 03***91 | Pop - Rivet (To Secure Safety Lable) | 4 |
| 3E***67 | Plate-Eec Certification | 1 |
| 3N***90 | Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine | 1 |
Starting And Electrical System
6t7160 Lamp Gp
| 6T***60 | Lamp Group | 1 |
8y1213 Lighting Gp-3 Lamp
| 8Y***13 | Lighting Group-3 Lamp | 1 |
1w4263 Alternator Gp
| 1W***63 | Alternator Group-Charging | 1 |
8n2268 Alternator Gp-12 Volt, 75 Ampere
| 8N***68 | Alternator Group-Charging | 1 |
8n2822 Alternator Gp-12 Volt, 75 Ampere
| 6V***78 | Nut; (10-32-Thd) | 2 |
| 8F***34 | Lockwasher; (External Teeth) | 2 |
| 8N***68 | Alternator Group-Charging | 1 |
7n4784 Alternator Gp-12 Volt, 40 Ampere
| 7N***84 | Alternator Group-Charging | 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 |
5g0237 Battery & Wiring Gp-Part 2 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 |
8y1562 Horn Gp-Electric
| 8Y***62 | Horn Group-Electric | 1 |
5g2541 Starting Aid Gp-Ether
| 5G***41 | Starting Aid Group-Ether | 1 |
4n0190 Starting Motor Gp-Electric
| 4N***90 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
3e1865 Starting Motor Gp-Electric
| 3E***65 | Starting Motor Group-Electric | 1 |
9x0354 Starting Motor Gp-Electric
| 9X***54 | Starting Motor Group-Electric | 1 |
4n0241 Starting Motor Gp-Electric
| 4N***41 | Starting Motor Group-Electric | 1 |
9g5517 Switch As-12 Volt
| 9G***17 | Switch As | 1 |
8n0410 Switch Gp-Magnetic
| 8N***10 | Switch Group; (Magnetic) | 1 |
8y1145 Warning Gp-Backup
| 8Y***45 | Warning Group-Backup | 1 |
5g0457 Wiring Gp-Cab
| 5G***57 | Wiring Group-Cab; Cab Wiring Group | 1 |
Steering Clutches And Brakes
5g3182 Brake Gp-Steering-Part 1 Of 3
| 5G***82 | Brake Group-Steering | 1 |
5g3182 Brake Gp-Steering-Part 2 Of 3
| 5G***82 | Brake Group-Steering | 1 |
8y1588 Brake Gp-Steering-Part 3 Of 3
| 8Y***88 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y1087 Brake Gp-Steering-Part 2 Of 3
| 8Y***87 | Brake Group-Steering | 1 |
8y1585 Brake Gp-Steering-Part 1 Of 3
| 8Y***85 | Brake Group-Steering | 1 |
8y1087 Brake Gp-Steering-Part 3 Of 3
| 8Y***87 | Brake Group-Steering | 1 |
8y2316 Brake Gp-Steering-Hand-Part 1 Of 4
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y2316 Brake Gp-Steering-Hand-Part 3 Of 4
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y2316 Brake Gp-Steering-Hand-Part 4 Of 4
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y1588 Brake Gp-Steering-Part 1 Of 3
| 8Y***88 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y2315 Brake Gp-Steering-Hand-Part 1 Of 4
| 8Y***15 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y1588 Brake Gp-Steering-Part 2 Of 3
| 8Y***88 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y1585 Brake Gp-Steering-Part 2 Of 3
| 8Y***85 | Brake Group-Steering | 1 |
8y2315 Brake Gp-Steering-Hand-Part 2 Of 4
| 8Y***15 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y1087 Brake Gp-Steering-Part 1 Of 3
| 8Y***87 | Brake Group-Steering | 1 |
8y2315 Brake Gp-Steering-Hand-Part 4 Of 4
| 8Y***15 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y2316 Brake Gp-Steering-Hand-Part 2 Of 4
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y1585 Brake Gp-Steering-Part 3 Of 3
| 8Y***85 | Brake Group-Steering | 1 |
8y2315 Brake Gp-Steering-Hand-Part 3 Of 4
| 8Y***15 | Brake Group-Steering; Brake Gp-Steering | 1 |
5g3182 Brake Gp-Steering-Part 3 Of 3
| 5G***82 | Brake Group-Steering | 1 |
8y0270 Control Gp-Steering-Decelerator
| 8Y***70 | Control Group-Steering | 1 |
8y2312 Steering Ar-Wet Hand Brake-Power Shift Transmission
| 8Y***12 | Steering Ar | 1 |
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
| 8Y***18 | Firewall Group; Firewall Gp | 1 |
8y2310 Steering Ar-Dry Hand Brake-Power Shift Transmission
| 8Y***10 | Steering Ar | 1 |
| 8Y***15 | Brake Group-Steering; Brake Gp-Steering | 1 |
| 8Y***18 | Firewall Group; Firewall Gp | 1 |
8y0252 Steering Ar-Oil Clutch & Brake
| 5G***03 | Case Group-Steering Clutch | 1 |
| 5G***25 | Clutch Group-Steering; Clutch Gp-Steering Brake | 1 |
| 5G***36 | Yoke As. | 2 |
5g0997 Case Gp-Steering Clutch
| 5G***97 | Case Group-Steering Clutch | 1 |
5g6103 Case Gp-Steering Clutch
| 5G***03 | Case Group-Steering Clutch | 1 |
6s3528 Clutch Gp-Steering
| 6S***28 | Clutch Group-Steering | 1 |
5g8725 Clutch Gp-Steering
| 5G***25 | Clutch Group-Steering; Clutch Gp-Steering Brake | 1 |
8y1539 Control Gp-Steering Clutch-Part 2 Of 2
| 8Y***39 | Control Group-Steering Clutch | 1 |
8y1539 Control Gp-Steering Clutch-Part 1 Of 2
| 8Y***39 | Control Group-Steering Clutch | 1 |
5g1073 Lining & Band As*R
| 5G***73 | Lining & Band As | 1 |
5g8120 Valve Gp
| 5G***20 | Valve Group; (Lh Control) | 1 |
5g8121 Valve Gp
| 5G***21 | Valve Group; (Right Steer. | 1 |
8y4011 Valve Gp-Control
| 8Y***11 | Valve Group-Control | 1 |
D3C serial number reference
The PIN/serial plate on the D3C sits on the left side of the engine compartment near the operator's station (Cat also stamps the number in a couple of backup spots on the frame). The first three characters are the prefix, identifying the production block; the digits after it are the sequential unit number within that block. Match the prefix exactly against the parts book — on this small-dozer platform a prefix change can mark a running production update, a power-shift-to-direct-drive split, or a Std/XL-to-LGP undercarriage change, not just a different nameplate.
| Prefix | Identifies | Notes |
|---|---|---|
| 1PJ | D3C Std/XL, power shift | Early production block for the base D3C. Cat 3204 4-cylinder direct-injection diesel, about 73 hp (54 kW) gross / 67 hp (50 kW) net. Planetary power-shift transmission with clutch-brake steering, not the Hystat hydrostatic drive used on the later Series III. |
| 19J | D3C Std/XL, power shift | Grouped with 1PJ/3RF/5KG/6PF/8BF in base-D3C operator literature; same 3204 engine as the rest of the run. Thinly documented on its own — confirm exact driveline configuration with dealer before ordering against this prefix. |
| 3RF | D3C Std/XL, power shift | Mid-run production block for the base D3C, covered in the same power-shift parts catalog as 5KG and 6PF. Same 3204 engine and clutch-brake steering as 1PJ. |
| 5KG | D3C Std/XL, power shift | Base-D3C production block, covered in the power-shift parts catalog alongside 1PJ. 3204 engine, planetary power-shift transmission, clutch-brake steering. |
| 6PF | D3C Std/XL, power shift | Base-D3C production block with its own dedicated parts-catalog entry, grouped with 3RF and 5KG in the power-shift catalog. 3204 engine, clutch-brake steering. |
| 7JF | D3C Std/XL, direct drive (Special Application) | Special-Application block in the base-D3C run, documented in its own dedicated parts catalog. Direct-drive transmission, not power-shift, with the 3204 engine; a low-volume prefix compared with the power-shift blocks in this series. |
| 8BF | D3C Std/XL/LGP, direct drive | Covers both the standard/XL and LGP (low ground pressure) undercarriage under one prefix block. Turns up in the LGP direct-drive parts catalog alongside 31M/1WC/96X/9GA, and in the shared base-D3C operator's manual alongside 19J/3RF/5KG/6PF. 3204 engine, direct-drive transmission. |
| 31M | D3C LGP, direct drive | LGP-specific block from the dedicated LGP direct-drive parts catalog, alongside 1WC/96X/9GA/8BF. 3204 engine. Thinly documented — confirm with dealer. |
| 1WC | D3C LGP, direct drive | LGP-specific block, same direct-drive parts catalog as 31M/96X/9GA. Thinly documented — confirm with dealer. |
| 96X | D3C LGP, direct drive | LGP-specific block in the direct-drive parts catalog with 31M/1WC/9GA. One other catalog listing ties this same prefix to a power-shift grouping, so treat the driveline as unconfirmed and check the machine's own configuration plate before ordering. |
| 9GA | D3C LGP, direct drive | Latest block in the LGP direct-drive parts-catalog sequence. Thinly documented — confirm with dealer. |
Frequently asked questions
What engine does the Caterpillar D3C use?
It depends on series. The base D3C and D3C Series II both use a Cat 3204 four-cylinder, 5.2 liter naturally aspirated diesel rated about 73 to 76 hp gross (67 to 70 hp net). The D3C Series III switched to a Cat 3046 six-cylinder, naturally aspirated diesel rated about 78 hp gross (71 hp net). Confirm the series by serial number before ordering engine parts.
What is the operating weight of a Caterpillar D3C?
Operating weight runs roughly 11,500 to 17,000 lb (5,200 to 7,700 kg) depending on series and configuration. A typical Series II or Series III standard unit weighs about 15,400 to 15,700 lb (7,000 to 7,100 kg); LGP and XL undercarriage options shift that figure.
What replaced the Caterpillar D3C?
After the D3C Series III/XL III ran through the late 1990s and into the early 2000s, Caterpillar moved the nameplate to the D3G, then carried it forward as the D3K and D3K2, and today it continues as the D3 in Cat's Next Generation small-dozer lineup.
What D3C owners discuss
What engine does the D3C run, and are there any known quirks?
The D3C uses Caterpillar's 3204 four-cylinder diesel, naturally aspirated, roughly 4.4-5.2 L (269-318 cu in) depending on source, rated around 50 kW (67 hp) net - figures vary a bit by source and configuration. It's a mechanically governed, direct-injection engine with no electronics, so diagnosis stays old-school: compression, injectors, fuel delivery. The recurring quirk owners report is the fuel tank outlet fitting clogging with sediment at the bottom of the tank, which mimics a plugged fuel filter - the engine loses fuel after running a short while, and clearing the outlet (or blowing back through the line) restores flow. The fuel transfer pump's small internal check valves also trap debris and stick, causing hard starting or stalling.
What's the deal with the transmission and steering clutches - any common failure patterns?
The base D3C and D3C LGP run a 3-speed powershift transmission with wet, oil-bath steering clutches and brakes sharing lubrication with the bevel-gear final drive case. Two failure patterns come up repeatedly: complete loss of forward or reverse movement traced to stuck valves in the transmission valve body (freeing and cleaning the valves restores drive), and, once the machine is warmed up, a gear that seems to get skipped in the shift pattern - usually clutch piston seal wear, confirmed by checking pump pressure with a gauge while cycling the shift lever. A tractor that creeps or slips at low idle is often just insufficient clutch-apply pressure at idle rather than a worn clutch. Because these steering clutches also serve as the machine's brakes, have a dealer or qualified technician verify clutch and brake adjustment and pressure before returning a machine to work.
Any recurring hydraulic system issues owners flag?
The implement pump feeds the blade lift and tilt circuit off the engine. Bench pump-pressure figures quoted in the service literature are for testing the pump off the machine on a stand - they don't apply to on-machine diagnosis, where case drain flow, relief valve settings, and cylinder drift are the checks that matter. A dozer that has sat idle for an extended stretch commonly develops a leak at the gasket or seal on the bottom cover plate under the rear of the machine - worth a close look on any machine that has been stored rather than run steadily.
What undercarriage wear patterns are typical for this machine?
The D3C is a low-drive, non-elevated-sprocket dozer, so wear follows a simple pattern: sprockets are segmented rather than one piece, and once the link pin bosses sit close to the track rollers, the chain and rollers are due for replacement. Two operating habits owners flag as accelerating wear: tracks adjusted too tight, which magnifies load on the bushing-to-sprocket and link-to-idler contact points, and heavy use of high-speed reverse, which owners describe as hard on both track and sprocket life. LGP-configured machines run a longer track frame and wider shoes than the standard-gauge D3C for lower ground pressure - expect different wear rates and non-interchangeable undercarriage parts between the two configurations.
What causes metal showing up in the final drive or bevel gear oil?
Metal flakes or gear material in the final drive oil on one side points to internal wear or a failing gear or bearing inside that final drive - pull the cover and inspect rather than just topping off oil and continuing to run it. Gear oil that needs repeated topping off, especially paired with a wet area near the sprocket, usually means a face seal is leaking and letting contamination work its way in. Keeping the undercarriage free of packed debris reduces the chance of that seal getting forced out of place.
What electrical or sensor issues come up on the D3C?
This is a pre-electronic, mechanically governed machine, so there's no controller or diagnostic fault codes to chase - gauge and sending unit problems account for most of the electrical complaints. A dead or backwards-reading fuel gauge usually traces to the sending unit, mounted under the seat on the fuel tank side, or to a broken or corroded wire running to it. Corroded gauge cluster connectors and blown fuses account for most no-reading gauge cases. Wiring on these older machines is light gauge, so decades of vibration chafe insulation and loosen connections - work the harness with a multimeter and clean connections before condemning a gauge or sender.
What should I check before buying a used D3C?
Confirm the serial number prefix first - it pins down model year and series (base D3C versus Series II versus XL Series III), which matters because engine tuning, transmission type, and parts availability differ across those. Run the engine and watch for black or blue smoke, listen for a steady idle, and check for blow-by at the oil fill tube. Cycle forward and reverse and note any hesitation or clunk shifting under load, a sign of the clutch or valve issues common to this model. Inspect hydraulic cylinder rods for pitting or leaks - they should show a clean mirror finish, not scoring. Measure undercarriage wear (rail height, sprocket tooth profile, bushing turn) against a comparison reference rather than trusting the hour meter alone, since one side often wears faster from turning habits. Check the blade, cutting edge, and trunnion pin area for cracks, weld repairs, or reface plates that hint at hard use. Ask for maintenance records and how the hours were accumulated, since idle or stationary hours read very differently than working hours on wear parts.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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