Caterpillartrack-type tractor
Caterpillar D4C II
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar D4C Series II is a small-class track-type tractor built roughly 1990 to 1993, in Cat's D3-D5 light-dozer bracket. It runs a naturally aspirated Cat 3204 diesel, a 5.2 L four-cylinder rated around 80 hp gross (59-63 kW, figures vary slightly by source), paired with a 3-speed forward/3-speed reverse powershift transmission and mechanical clutch/brake steering, with no torque converter or hydrostatic drive. Operating weight runs about 7,560-7,580 kg (16,660-16,710 lb) in Standard configuration, up to roughly 7,900 kg (17,430 lb) on the wide-track LGP (low ground pressure) version; those are the only two factory configurations documented for this series, since the XL badge only arrived later with the Series III. It replaced the original D4C (built roughly 1987-1990, mechanically similar, same 3204 engine) and was itself replaced by the D4C Series III (roughly 1993-2001), which moved to a more powerful turbocharged 3046 engine and later added a hydrostatic (Hystat) drive option.
Across the D4C lineage, the core change from one generation to the next was drivetrain refinement rather than a size jump: the original D4C and the Series II share the same naturally aspirated 3204 engine and clutch/brake steering, while the Series III moved to the turbocharged 3046 and later offered hydrostatic steering as an alternative to mechanical clutches and brakes. Within the Series II itself, Standard and LGP trade ground pressure and blade width against each other rather than changing the engine or transmission. In the used and parts market today, D4C II units are valued as simple, mechanically serviceable small dozers: no electronic engine or transmission controls, one drive-train oil family shared across the transmission, steering-clutch compartment, and final drives, and a 3204 engine block used widely enough across other Cat machines that parts and rebuild kits stay easier to source than on newer, electronically governed compact dozers.
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 D4C II specifications
Engine
| Engine model | Caterpillar 3204, 4-cylinder diesel, naturally aspirated, direct injection |
| Displacement | 5.2 L (317-318 cu in) |
| Bore x Stroke | 114 x 127 mm (4.50 x 5.00 in) |
| Gross power | 59.7-63.4 kW (80-85 hp) - published gross figure varies by source |
| Net power (where published) | 58.9 kW (79 hp) |
| Rated engine speed | 2,400 rpm |
| Cooling system | Liquid-cooled, engine-driven fan |
| Electrical system | 12V, alternator-charged, approx. 40A output |
| Emissions certification | Predates modern nonroad emissions tiers (production era 1990-93); no EPA/EU emissions rating applies |
Weights
| Standard configuration - operating weight | 7,557-7,581 kg (16,661-16,713 lb) |
| Standard configuration - shipping weight | 6,005 kg (13,239 lb) |
| LGP configuration - operating weight | 7,904-7,905 kg (17,427-17,428 lb) |
| LGP configuration - shipping weight | 6,273 kg (13,830 lb) |
| Configuration note | Only Standard and LGP configurations documented for Series II. XL configuration was not offered on this series; XL appears starting with D4C Series III. |
Dimensions
| Standard - length with blade | 3.85-3.87 m (12.64-12.70 ft) |
| Standard - length without blade | 3.00-3.02 m (9.85-9.90 ft) |
| Standard - width over tracks | 1.83-1.86 m (6.01-6.10 ft) |
| Standard - height to top of cab/ROPS | 2.66-2.68 m (8.73-8.80 ft) |
| Standard - ground clearance | 295-300 mm (11.6-11.8 in) |
| Standard - track length on ground | 2.05-2.07 m (6.73-6.80 ft) |
| Standard - track gauge | 1.42 m (4.66 ft / 56 in) |
| Standard - track shoe width | 406 mm (16 in) |
| LGP - length with blade | 4.05 m (13.29-13.30 ft) |
| LGP - width over tracks | 2.29-2.32 m (7.52-7.60 ft) |
| LGP - height to top of cab/ROPS | 2.66-2.68 m (8.73-8.80 ft), same as Standard |
| LGP - ground clearance | 296-300 mm (0.97-1.00 ft) |
| LGP - track gauge | 1.65-1.68 m (5.42-5.50 ft / 65 in) |
| LGP - track shoe width | 635 mm (25 in) |
| Track rollers per side (both configs) | 6 |
Performance
| Transmission | Powershift, 3 speeds forward / 3 speeds reverse |
| Max travel speed - forward | 11.1 km/h (6.9 mph) |
| Max travel speed - reverse | 11.9 km/h (7.4 mph) |
| Standard configuration - ground contact area | 1.67 m² (2,588-2,589 in²) |
| Standard configuration - ground pressure | 43.4-44.4 kPa (6.3-6.44 psi) |
| LGP configuration - ground contact area | 2.6 m² (4,045-4,046 in²) |
| LGP configuration - ground pressure | 29.7-30.3 kPa (4.31-4.4 psi) |
| Drawbar pull / gradeability | Not published in available spec sheets for this model - verify with dealer or OEM service literature if a firm figure is required |
| Hydraulic relief valve pressure | 17.2 MPa (2,500 psi) |
| Hydraulic pump flow | 54.9-55.3 L/min (14.5-14.6 gpm), open-center system |
Blades
| Standard configuration - blade type | Straight (S) dozer blade |
| Standard blade - width | 2.54-2.56 m (8.4 ft) |
| Standard blade - height | 0.93 m (36.7 in) |
| Standard blade - capacity | 1.6 m³ (2.1 cu yd) |
| Standard blade - cutting depth | 439 mm (17.3 in) |
| Standard blade - angle | 25 degrees, each direction |
| LGP configuration - blade type | Straight (S) dozer blade, wide pattern |
| LGP blade - width | 3.26 m (10.7 ft) |
| LGP blade - height | 0.84 m (33.2 in) |
| LGP blade - capacity | 1.68 m³ (2.2 cu yd) |
| LGP blade - cutting depth | 452 mm (17.8 in), where published |
| LGP blade - angle | 25 degrees, each direction |
| Blade options note | No U, SU, A, or VPAT blade variant documented for this series in sourced spec sheets; only the straight blade is confirmed for Standard and LGP configurations. |
Service Capacities
| Fuel tank | 114-121 L (30.2-31.9 gal) - figure varies by source |
| Hydraulic system | 57 L (15.0-15.1 gal) |
| Engine oil (with filter) | 12.0 L (12.7 qt) |
| Cooling system | 20.0 L (21.1 qt) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D4C II fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) - Cat 3204 naturally aspirated diesel | approx. 12.0 L (12.7 US qt / 3.4 US gal) as installed in the machine; only one source gives this exact as-installed figure - confirm against the dipstick or OMM for your serial range | Cat Diesel Engine Oil (DEO), API CF-4 performance level; SAE 10W-30 for ambient -18C to 40C (0F to 104F), SAE 15W-40 usable down to about -9C (15F) and preferred above 40C (104F) |
| Cooling system | approx. 20.0 L (21.1 US qt / 5.3 US gal) as installed; single-source figure, total system volume depends on the radiator and piping as installed - confirm against the OMM for your serial range | Cat glycol-based antifreeze/coolant with corrosion inhibitor (Cat ELC-type or conventional low-silicate coolant mixed with water per OMM ratio); follow OMM cooling system section for exact concentration |
| Fuel tank | approx. 114-121 L (30.2-31.9 US gal); core figure is 114 L, with minor variance reported at the upper end | No. 2-D diesel fuel (ASTM D975 equivalent); use winter-grade or blended fuel below freezing ambient per OMM |
| Powershift transmission | not documented in accessible sources for this exact configuration - fill to dipstick/level plug per OMM | Cat TDTO (Transmission/Drive Train Oil), the era-correct predecessor of today's Cat TO-4 spec; SAE 30 grade typical for temperate ambient, lighter SAE 10W or arctic-grade oil for cold climates per the standard viscosity chart |
| Bevel gear / steering clutch and brake compartment (per side) | a figure near 28 L (7.4 US gal) per side has been referenced for this compartment on D4C-family machines, but it is not independently corroborated for the D4C II and is reported to vary by serial-number prefix - confirm against the level plug on your own machine | same Cat TDTO oil as the transmission; this compartment shares the fill/level circuit with the bevel gear case on this platform |
| Final drives (each side) | not documented in accessible sources for this exact configuration - fill to the level plug per OMM, do not estimate from unrelated model figures | Cat TDTO (TO-4 spec), the same power train oil used in the transmission and bevel gear/steering clutch compartment on this class of Cat crawler tractor |
| Hydraulic system / tank | 57 L (15.1 US gal); consistent across independent spec sources | Cat TDTO-family hydraulic-compatible oil per OMM (the implement hydraulic circuit typically shares the drive-train oil family on small Cat crawler tractors of this era); confirm against the OMM for your specific serial range, since some configurations call for a dedicated hydraulic oil instead |
| Pivot shaft / equalizer bar pivot | no confirmed oil-filled refill capacity for this model; sources describe the C-frame/equalizer pivot on this size class as a sealed or grease-lubricated joint rather than a filled oil compartment (unlike larger Cat dozer classes, which use an oil-filled pivot shaft housing) | Cat Multipurpose grease through the pivot grease fitting on the standard undercarriage lubrication interval, if a serviceable fitting exists on your serial-number range - otherwise the joint is sealed and needs no scheduled fill |
| Grease - chassis lubrication points (idlers, rollers, pins, bushings, blade/lift linkage, steering clutch linkage) | applied per fitting per the OMM lubrication interval schedule, not a bulk-fill capacity | Cat Multipurpose grease, NLGI Grade 2, lithium-complex base, service range approx. -30C to 40C (-22F to 104F); a cold-climate/extreme-application grease is the Cat alternative for sustained sub-zero ambient |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar D4C II maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the D4C II beyond the schedule
Predictive Maintenance & Fluid Analysis
Track engine oil analysis on the naturally aspirated 3204: crankshaft bearing wear on this engine often doesn't show up as rough running, so oil pressure and sample trends catch it before a bearing lets go. Sample the powershift/bevel-gear/steering-clutch compartment on the same schedule; clutch-pack wear shows up in oil metals long before a gear slips under load, and confirms the compartment holds correct drive-train oil, not substitute engine oil, a repeat cause of shifting complaints. Watch hydraulic oil condition; pump and valve wear on this open-center system creeps in gradually.
Corrective & Common Repairs
Steering clutch packs on the D4C II aren't field-adjustable like older D4s; only the brake band cam linkage is. If a pedal goes to the floor with the band already snugged down, suspect a sheared adjusting screw inside the compartment, not another linkage turn. Track tensioners that keep losing grease pressure point to worn internal bushings and seals, not a need for more grease; run tracks slightly loose to ease bushing and sprocket wear. Weak injectors and low compression, not glow plugs, cause most hard starts on the 3204.
Overhaul & Rebuild Points
Undercarriage wear is the biggest rebuild cost on a D4C II: track chain, rollers, idlers, and sprockets reach end of life well before the powertrain on most working units, so budget for a full rebuild around mid-life hours. Steering clutch packs and brake bands are the next major rebuild point, since this machine steers on clutch/brake action, not differential or hydrostatic steering. An inframe overhaul of the naturally aspirated 3204 (liners, pistons, rings, injection pump) should follow oil-sample and compression trends, not a fixed hour number.
Seasonal & Environment Servicing
Cold starts on the naturally aspirated 3204 are the top seasonal complaint; hold glow plugs energized 20 to 30 seconds and keep them on until the engine runs smooth, not just until it cranks. A rough, surging cold idle usually traces to a sticking governor linkage, not the injection pump, so check for free movement there first. Switch to lighter-viscosity engine and hydraulic oil for winter and verify coolant freeze protection. In dusty sites, clean the radiator core and check air cleaner elements more often than the standard interval.
D4C II common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 6V-7614 | Film-Identification | Lubrication service | Check fitment → |
| 6V-2219 | Kit-Gasket | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D4C II fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Coolant Temperature Warning Lamp (red thermometer symbol) | Engine coolant temperature has risen above the normal operating range. | Low coolant level, blocked or dirty radiator core, slipping or broken fan belt, or a stuck thermostat. | Reduce load and let the engine idle to cool down. Once safe, check coolant level, belt tension, radiator fins, and thermostat operation before returning to work. |
| Engine Oil Pressure Warning Lamp (red oil-can symbol) | Engine oil pressure has dropped below the safe minimum for the 3204. | Low oil level, worn oil pump, clogged filter, or a failed pressure sending unit or switch. | Shut the engine down right away. Check oil level and filter condition, then confirm the reading with a mechanical test gauge before restarting. |
| Alternator/Charging System Warning Lamp (battery symbol) | Charging system voltage is below normal and the battery is not being replenished. | Slipping or broken alternator belt, worn brushes or regulator, or a loose or corroded connection at the alternator or battery terminals. | Check belt tension and wiring connections first. With the engine running, test alternator output at the battery and repair or replace as needed. |
| Transmission Oil Temperature warning light / gauge in red zone | Powershift transmission oil temperature is above the normal operating range. | Low transmission oil, a plugged transmission oil cooler, worn clutch packs generating excess heat, or sustained stall under heavy load. | Reduce load and idle to cool, check oil level and cooler for restriction, inspect for clutch slippage if temperature climbs quickly again. |
| Transmission Oil Filter Bypass warning light | The transmission oil filter is restricted and oil is bypassing the filter element unfiltered. | An overdue or dirty transmission filter, degraded oil, or cold oil viscosity at startup. | Replace the transmission filter and check oil condition; if the light stays on after warm-up, sample the oil for contamination. |
| Air Cleaner Restriction Indicator (yellow pop-up flag or amber panel lamp) | Intake airflow through the dry-type air cleaner is restricted. | Dirty or clogged primary or secondary filter element, or a plugged pre-cleaner. | Service or replace the air filter element on schedule, then reset the indicator. |
| No Power to Instrument Panel / Gauges (dash goes dead) | The ignition-switched supply to the gauge cluster and warning lamps is interrupted, so no gauges or lamps respond even though the engine can still be started by jumping the solenoid directly. | Blown or tripped circuit breaker ahead of the ignition switch, a failed ignition switch, or a corroded ground or power connection at the panel. | Check the main panel circuit breaker and battery disconnect first, then test voltage at the ignition switch and gauge cluster harness connector. |
| Low Fuel Level indicator / gauge | Fuel level in the tank has dropped to a low reserve. | Normal fuel consumption nearing empty, or a faulty fuel level sending unit if the light stays on with a full tank. | Refuel; if the indicator disagrees with a manual dipstick check, test the fuel level sending unit. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D4C II attachments & work tools
Blades
Standard blade for this series measures about 2.54-2.56 m (8.3-8.4 ft) wide by roughly 930 mm (36.7 in) tall, holding near 1.6 m3 (2.1 cu yd), with about 439 mm (17.3 in) max cutting depth. Factory spec sheets for this series list an angle/tilt-capable blade swinging about 25 degrees each direction, consistent with an A-blade or 6-way PAT arrangement rather than a fixed straight blade; a wider LGP blade near 3.26 m (10.7 ft) wide with about 1.68 m3 (2.2 cu yd) capacity is documented for the LGP undercarriage variant. Semi-U (SU) and 6-way PAT blades are documented within the broader D4C family sharing this chassis and engine, but VPAT (variable power angle tilt) only shows up tied to later/larger Cat dozer frames in factory literature -- treat VPAT as unconfirmed for this class and verify against the specific PIN's parts book.
Rippers
Both single-shank parallelogram and multi-shank (typically 3-shank) parallelogram hinge-type rippers are documented against the shared rear ripper mount used across this dozer's close family (same frame/engine group), so either style bolts to the same rear linkage. Multi-shank units in this weight class run in the low hundreds of kilograms complete with structure, shanks, tips and two lift cylinders; exact weight varies by shank count and supplier, so confirm against the ripper group matched to the machine's serial prefix. Single-shank rippers give the deepest penetration in hard or frozen ground; multi-shank versions trade some penetration depth for a wider ripped swath per pass.
Winches
Cable-drum towing/recovery winches sized for this frame are documented as fitting the D4C family across several nameplate suffixes, PTO-driven off the transmission and mounted at the rear of the tractor. A rear-mounted winch and a rear ripper share the same drawbar/PTO location and are mutually exclusive on one machine -- a given tractor is set up for one or the other, not both. Exact drum capacity and line-pull figures are not documented specifically for this series; confirm winch class against the machine's PIN before ordering one.
Drawbars/counterweights
A front counterweight package near 386 kg (850 lb) is documented in the parts book for this family, noted as incompatible with certain front pull-hook fitments -- front pull hook and front counterweight are mutually exclusive front-end options. When the rear is left bare (no ripper, no winch), a rear drawbar/pull-hook and/or rear counterweight is the recommended fit to keep the machine balanced and to give a tow point; exact rear counterweight mass is not documented for this series and should be confirmed with a dealer.
Cab/ROPS guarding for forestry/waste configs
Operator station options for this era of small dozer span an open ROPS canopy through a fully enclosed ROPS/FOPS cab; no dedicated factory waste-handling or forestry guarding package is documented for this model specifically -- that branded package shows up later, on larger Cat dozer families. Forestry/waste duty on this class is typically handled with dealer- or aftermarket-fitted radiator/grille screens, brush or root-rake guards, and mesh or bar guarding over ROPS glass and mirrors; any added guarding should meet FOPS-level certification appropriate to the debris exposure on site.
Hydraulic arrangement (front/rear tools)
A single engine-driven gear-type implement pump feeds an open-center system shared between the front blade circuit (lift/tilt/angle) and the rear ripper circuit, through a control valve bank at the right side of the operator's seat. Documented flow for this small-dozer family runs roughly 55-65 L/min (14.6-17.3 gpm) depending on series/reference, with main/blade relief set near 17,200 kPa (2500 psi); the ripper circuit carries its own separate, higher line relief around 23,000 kPa (3300 psi) to handle heavier ripper cylinder loads. Because front and rear tools draw from one shared pump, running blade and ripper functions at the same time reduces the speed available to each.
All D4C II assemblies by section
Every catalogued assembly group for the Caterpillar D4C II. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
7w8764 Air Cleaner Gp
| 7W***64 | Air Cleaner Group | 1 |
7w8765 Air Cleaner Gp
| 7W***65 | Air Cleaner Group | 1 |
7e0831 Extension Gp-Exhaust
| 7E***31 | Extension Group-Exhaust | 1 |
1w5054 Lines Gp-Air
| 1W***54 | Lines Group-Air; Air Lines Group | 1 |
7n4971 Manifold Gp-Exhaust
| 7N***71 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
7n4970 Muffler Gp
| 7N***70 | Muffler Group | 1 |
5m2735 Prescreener Gp
| 5M***35 | Prescreener Group; Prescreener Group----------------------. | 1 |
Basic Engine
6n2393 Camshaft Gp-Single
| 6N***93 | Camshaft Group-Single; Camshaft Group-Single | 1 |
2w7486 Cover Gp-Valve Mechanism
| 2W***86 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
Crankshaft Bearing Replacements
| 1W***55 | Bearing (0.25mm Undersize) | 2 |
| 1W***56 | Bearing (0.51mm Undersize) | 2 |
| 1W***57 | Bearing (1.27mm Undersize) | 2 |
7w3926 Crankshaft Gp
| 7W***26 | 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 |
7c3805 Cylinder Head As*R
| 7C***05 | Cylinder Head As | 1 |
7w9390 Cylinder Head As
| 7W***90 | Cylinder Head As | 1 |
7c2296 Cylinder Head As
| 7C***96 | 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 |
7n6937 Flywheel Gp
| 7N***37 | Flywheel Group; Flywheel Group | 1 |
1w1355 Gear Gp-Front
| 1W***55 | Gear Group-Front; Front Gear Group | 1 |
7n6344 Housing Gp-Flywheel
| 7N***44 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
2w4384 Housing Gp-Front
| 2W***84 | Housing Group-Front; Front Housing Group | 1 |
1w5554 Lifting Gp
| 1W***54 | Lifting Group | 1 |
6n8370 Pan Gp-Oil
| 6N***70 | Pan Group-Oil; Oil Pan Group | 1 |
8n4079 Piston & Rod Gp
| 8N***79 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
2w8419 Piston Gp
| 2W***19 | Piston Group | 1 |
7n5138 Pulley Gp-Crankshaft
| 7N***38 | Pulley Group-Crankshaft; Auxiliary Drive Pulley Group | 1 |
7c7743 Support Gp-Engine & Transmission
| 7C***43 | Support Group-Engine & Tmsn | 1 |
1w5720 Valve Mechanism Gp
| 1W***20 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Cooling System
7c7744 Cooler Gp-Engine Oil
| 7C***44 | Cooler Group-Engine Oil | 1 |
9n5659 Cooler Gp-Engine Oil
| 9N***59 | Cooler Group-Engine Oil | 1 |
7n9989 Fan Gp-Blower
| 7N***89 | Fan Group-Blower | 1 |
4n2220 Fan Gp-Suction
| 4N***20 | Fan Group-Suction; Suction Fan Group | 1 |
6n9125 Heater Gp-Jacket Water
| 6N***25 | Heater Group-Jacket Water | 1 |
6n9739 Heater Gp-Jacket Water
| 6N***39 | Heater Group-Jacket Water; Jacket Water Heater Group | 1 |
4n0188 Lines Gp-Water
| 4N***88 | Lines Group-Water; Water Lines Group | 1 |
4n0660 Pump Gp-Water
| 4N***60 | Pump Group-Water; Water Pump Group | 1 |
7c7740 Radiator Gp
| 7C***40 | Radiator Group | 1 |
7c7741 Radiator Gp
| 7C***41 | Radiator Group | 1 |
Electrical System
8n2822 Alternator Gp-Charging
| 6V***78 | Nut; (10-32-Thd) | 2 |
| 8F***34 | Lockwasher; (External Teeth) | 2 |
| 8N***68 | Alternator Group-Charging | 1 |
7n4784 Alternator Gp-Charging
| 7N***84 | Alternator Group-Charging | 1 |
8n2268 Alternator Gp-Charging
| 8N***68 | Alternator Group-Charging | 1 |
1w4263 Alternator Gp-Charging
| 1W***63 | Alternator Group-Charging | 1 |
8y5048 Battery & Wiring Gp-Part 1 Of 2
| 8Y***48 | Battery & Wiring Group | 1 |
8y5048 Battery & Wiring Gp-Part 2 Of 2
| 8Y***48 | Battery & Wiring Group | 1 |
6s3548 Battery Gp
| 6S***48 | Battery Group | 1 |
9x9069 Lamp Gp-Flood
| 9X***69 | Lamp Group-Flood | 1 |
9x7779 Lamp Gp-Flood
| 9X***79 | Lamp Group-Flood; -Roading Lights | 1 |
8y5067 Lighting Gp-3 Lamp
| 8Y***67 | Lighting Group-3 Lamp | 1 |
8y7145 Lighting Gp-3 Lamp
| 8Y***45 | Lighting Group-3 Lamp | 1 |
5g2541 Starting Aid Gp-Ether
| 5G***41 | Starting Aid Group-Ether | 1 |
3e1865 Starting Motor Gp-Electric
| 3E***65 | Starting Motor Group-Electric | 1 |
4n0190 Starting Motor Gp-Electric
| 4N***90 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
9x0354 Starting Motor Gp-Electric
| 9X***54 | Starting Motor Group-Electric | 1 |
9g5517 Switch As-12 Volt
| 9G***17 | Switch As | 1 |
8n0410 Switch Gp
| 8N***10 | Switch Group; (Magnetic) | 1 |
9g7641 Switch Gp-Start
| 9G***41 | Switch Group-Start; -Engine, Key-Vims Service | 1 |
8y5059 Warning Gp-Back-Up
| 8Y***59 | Warning Group-Backup | 1 |
5g0457 Wiring Gp-Cab
| 5G***57 | Wiring Group-Cab; Cab Wiring Group | 1 |
Engine Arrangement
4p0909 Engine Ar-Part 2 Of 2
| 1W***54 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
| 1W***54 | Lines Group-Air; Air Lines Group | 1 |
| 1W***54 | Lifting Group | 1 |
4p0909 Engine Ar-Part 1 Of 2
| 1N***24 | Filter Group-Oil; Oil Filter Group | 1 |
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
| 1W***55 | Gear Group-Front; Front Gear Group | 1 |
Final Drive
8y0234 Final Drive Gp
| 8Y***34 | Final Drive Group | 1 |
8y0235 Final Drive Gp
| 8Y***35 | Final Drive Group | 1 |
6y2047 Segment Gp-Sprocket
| 6Y***47 | Segment Group-Sprocket | 1 |
Frame And Body
6s9359 Cleaner Bar Gp
| 6S***59 | Cleaner Bar Group | 1 |
8y5644 Counterweight Gp-Front
| 8Y***44 | Counterweight Group-Front | 1 |
5g0779 Drawbar Gp
| 5G***79 | Drawbar Group; (Fixed) | 1 |
5g5317 Drawbar Gp-Swinging
| 5G***17 | Drawbar Group-Swinging | 1 |
8y5329 Firewall Gp
| 8Y***29 | Firewall Group | 1 |
8y5230 Firewall Gp
| 8Y***30 | Firewall Group | 1 |
5g8709 Frame Gp
| 5G***09 | Frame Group | 1 |
5g1185 Guard Gp-Bottom
| 5G***85 | Guard Group-Bottom | 1 |
5g2342 Guard Gp-Brush
| 5G***42 | Guard Group-Brush | 1 |
5g2327 Guard Gp-Brush
| 5G***27 | Guard Group-Brush | 1 |
8y5039 Guard Gp-Radiator
| 8Y***39 | Guard Group-Radiator | 1 |
8y5060 Hood & Guard Gp
| 8Y***60 | Hood & Guard Group | 1 |
6s3864 Hook Gp-Front Pull
| 6S***64 | Hook Group-Front Pull | 1 |
8y5077 Sweep Gp
| 8Y***77 | Sweep Group | 1 |
Fuel System
2w0262 Camshaft As
| 2W***62 | Camshaft As | 1 |
5g3612 Cap Gp-Protection
| 5G***12 | Cap Group-Protection; Fuel Filler Protection Cap Group | 1 |
8y5050 Control Gp-Decelerator
| 8Y***50 | Control Group-Decelerator | 1 |
8y5034 Control Gp-Governor
| 8Y***34 | Control Group-Governor | 1 |
7e3734 Filter Gp-Fuel
| 7E***34 | Filter Group-Fuel | 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 |
7n0042 Lines Gp-Fuel Injection
| 7N***42 | Lines Group-Fuel Injection | 1 |
1w1354 Lines Gp-Fuel Injection
| 1W***54 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
2w0263 Pump Gp-Fuel Injection
| 2W***63 | Pump Group-Fuel Injection | 1 |
1w6539 Pump Gp-Fuel Injection
| 1W***39 | Pump Group-Fuel Injection | 1 |
4n4314 Pump Gp-Fuel Priming
| 4N***14 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
2w4403 Pump Gp-Fuel Transfer
| 2W***03 | Pump Group-Fuel Transfer; Fuel Transfer Pump Group | 1 |
1006406 Pump Gp-Fuel Transfer
| 10***06 | Pump Group-Fuel Transfer | 1 |
1w0568 Pump Gp-Fuel Transfer
| 1W***68 | Pump Group-Fuel Transfer | 1 |
2w6309 Pump Gp-Fuel Transfer
| 2W***09 | Pump Group-Fuel Transfer | 1 |
7w0189 Governor & Fuel Injection Pump Gp
| 7W***89 | Pump Group-Gov & Fuel Inj; Governor & Fuel Injection Pump Group | 1 |
8y5045 Tank Gp-Fuel
| 8Y***45 | Tank Group-Fuel | 1 |
4w5063 Torque Control Gp
| 4W***63 | Torque Control Group | 1 |
Hydraulic System
9j8698 Cylinder Gp-Angling (Changes 1-4)
| 9J***98 | Angling Cylinder Group; Angling Cylinder Group | 1 |
8y0639 Control Gp-Hydraulic Hand
| 8Y***39 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
8y7111 Control Gp-Hydraulic Hand
| 8Y***11 | Control Group-Hydraulic Hand | 1 |
8y4984 Control Gp-Hydraulic Hand
| 8Y***84 | Control Group-Hydraulic Hand | 1 |
8y5053 Control Gp-Hydraulic Hand
| 8Y***53 | Control Group-Hydraulic Hand | 1 |
8y4983 Control Gp-Hydraulic Hand
| 8Y***83 | Control Group-Hydraulic Hand | 1 |
7j9223 Cylinder Gp-Lift (Changes 1-9)
| 7J***23 | Lift Cylinder Group | 1 |
8y0247 Lines Gp-Pump
| 8Y***47 | Lines Group-Pump; Lines Gp-Pump | 1 |
8y0246 Lines Gp-Rear
| 8Y***46 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment | 1 |
8e4276 Mounting Gp-Cylinder Lines
| 8E***76 | Mounting Group-Cylinder Lines; Mounting Gp-Cylinder Lines | 1 |
9j8674 Cylinder Gp-Tilt (Changes 0-4)
| 9J***74 | Tilt Cylinder Group; Tilt Cylinder Group | 1 |
9t7249 Valve Gp-Bank
| 9T***49 | Valve Group-Bank | 1 |
9t7250 Valve Gp-Bank
| 9T***50 | Valve Group-Bank; Valve Gp-Bank | 1 |
9t7641 Valve Gp-Control
| 9T***41 | Valve Group-Control; -Ripper | 1 |
9t7651 Valve Gp-Control
| 9T***51 | Valve Group-Control; -Hoist | 1 |
9t7642 Valve Gp-Control
| 9T***42 | Valve Group-Control; -Angle, Tilt | 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 |
7j9920 Cylinder Gp-Ripper (Change 8)
| 7J***20 | Cylinder Group-Ripper | 1 |
8y7126 Hydraulic Ar-4 Valve
| 8Y***46 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment | 1 |
| 8Y***11 | Control Group-Hydraulic Hand | 1 |
| 8Y***26 | Hydraulic Ar | 1 |
8y5068 Hydraulic Ar-3 Valve
| 8Y***83 | Control Group-Hydraulic Hand | 1 |
| 8Y***84 | Control Group-Hydraulic Hand | 1 |
| 8Y***68 | Hydraulic Ar | 1 |
8y5065 Hydraulic Ar-4 Valve
| 8Y***46 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment | 1 |
| 8Y***39 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
| 8Y***83 | Control Group-Hydraulic Hand | 1 |
8e4279 Lines Gp-Angle & Tilt
| 8E***79 | Lines Group-Angle & Tilt | 1 |
8e4278 Lines Gp-Angle & Tilt
| 8E***78 | Lines Group-Angle & Tilt | 1 |
8y5054 Lines Gp-Hydraulic
| 8Y***54 | Lines Group-Hydraulic | 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 |
8j4513 Pump Gp-Gear
| 8J***13 | Pump Group-Gear | 1 |
3g5385 Pump Gp-Gear
| 3G***85 | Pump Group-Gear | 1 |
8y5069 Tank & Filter Gp-Hydraulic
| 8Y***69 | Tank & Filter Group | 1 |
8y5318 Tank Gp-Hydraulic
| 8Y***18 | Tank Group-Hydraulic | 1 |
8y5055 Valve & Mounting Gp
| 8Y***55 | Valve & Mounting Group | 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
9w9579 C-Frame Gp
| 9W***79 | C-Frame Group | 1 |
3g3440 C-Frame Gp
| 3G***40 | C-Frame Group | 1 |
8y2452 Drive Ar-Winch
| 5G***18 | Drive Group-Power Take-Off; Power Take-Off Drive Group | 1 |
| 8Y***51 | Pump & Lines Group | 1 |
| 8Y***52 | Drive Ar-Winch | 1 |
8y6570 Guard Gp-Brush
| 8Y***70 | Guard Group-Brush; Guard Gp-Brush | 1 |
8y2451 Lines & Pump Gp
| 8Y***51 | Pump & Lines Group | 1 |
8y2410 Lines & Pump Gp
| 8Y***10 | Pump & Lines Group; Lines & Pump Gp-Winch | 1 |
6e1413 Pump Gp-Gear
| 6E***13 | Pump Group-Gear | 1 |
3g5046 Pump Gp-Gear
| 3G***46 | Pump Group-Gear | 1 |
1u0414 Pump Gp-Gear
| 1U***14 | Pump Group-Gear | 1 |
5g0269 Mounting Gp-Trunnion
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
6y5351 Winch Ar
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
| 6Y***55 | Winch Ar-Towing | 1 |
| 6Y***51 | Winch Ar | 1 |
6y5350 Winch Ar
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
| 6Y***55 | Winch Ar-Towing | 1 |
| 6Y***50 | Winch Ar | 1 |
6y5836 Bit & Cutting Edge Gp
| 6Y***36 | Bit & Cutting Edge Group | 1 |
6y5835 Bit & Cutting Edge Gp
| 6Y***35 | Bit & Cutting Edge Group | 1 |
6y5534 Blade Gp-Angling
| 6Y***34 | Blade Group-Angling | 1 |
6y5526 Blade Gp-Angling
| 6Y***26 | Blade Group-Angling | 1 |
8e4076 Bulldozer Ar
| 3G***40 | C-Frame Group | 1 |
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
| 6Y***34 | Blade Group-Angling | 1 |
8e4077 Bulldozer Ar
| 3G***40 | C-Frame Group | 1 |
| 6Y***34 | Blade Group-Angling | 1 |
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
8e4071 Bulldozer Ar
| 6Y***26 | Blade Group-Angling | 1 |
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
| 8E***71 | Bulldozer Ar-Angling | 1 |
8e4070 Bulldozer Ar
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
| 6Y***26 | Blade Group-Angling | 1 |
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
6y1467 Case & Covers Gp
| 6Y***67 | Case & Covers Group-Winch | 1 |
6y1906 Gear & Clutch Gp-Part 1 Of 2
| 6Y***06 | Clutch & Gear Group | 1 |
6y1906 Gear & Clutch Gp-Part 2 Of 2
| 6Y***06 | Clutch & Gear Group | 1 |
5g2636 Control Gp-Towing Winch
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
6y2048 Control Gp-Winch
| 6Y***48 | Control Group-Winch | 1 |
6y2216 Control Gp-Winch
| 6Y***16 | Control Group-Winch | 1 |
5g3938 Control Gp-Towing Winch
| 5G***38 | Control Group-Winch; Control Gp-Towing Winch | 1 |
5g4331 Control Gp-Towing Winch
| 5G***31 | Control Group-Winch; Control Gp-Towing Winch | 1 |
6y2175 Conversion Ar-Winch
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 5 |
| 3T***80 | Cover As | 1 |
| 5G***38 | Control Group-Winch; Control Gp-Towing Winch | 1 |
6y2176 Conversion Ar-Winch
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 5 |
| 1A***83 | Bolt (4.75" Long-Location "B") | 2 |
| 3T***80 | Cover As | 1 |
6y2217 Conversion Gp-Winch
| 6Y***17 | Conversion Group-Winch | 1 |
6y1959 Conversion Gp-Winch
| 6Y***59 | Conversion Group-Winch | 1 |
7g9447 Covers Gp-Shipping
| 2M***80 | Seal--To Connector Pump Outlet | 1 |
| 3T***85 | Cover-Shipping; Shipping Cover | 1 |
| 7G***47 | Cover Group-Shipping; Shipping Cover Group | 1 |
7g9470 Drive Gp-Winch
| 7G***70 | Drive Group-Winch | 1 |
6y2111 Lines Gp-Winch
| 6Y***11 | Lines Group-Winch | 1 |
6t2288 Manifold Gp
| 6T***88 | Manifold Group | 1 |
7g6800 Manifold Gp
| 7G***00 | Manifold Group | 1 |
8j3294 Mounting Gp-Ripper
| 8J***94 | Mounting Group-Ripper; Ripper Mounting Group | 1 |
7g9423 Mounting Gp-Winch
| 7G***23 | Mounting Group-Winch | 1 |
9j9005 Ripper Ar
| 2P***17 | Film-D3 Ripper | 1 |
| 6S***59 | Lines Group-Ripper; Ripper Lines Group | 1 |
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
8j3334 Ripper Gp
| 8J***34 | Ripper Group; Ripper Group | 1 |
8j5313 Tooth Gp
| 8J***13 | Tooth Group | 1 |
6t2289 Valve Gp
| 6T***89 | Valve Group | 1 |
7g6861 Valve Gp
| 7G***61 | Valve Group | 1 |
7g6799 Valve Gp-Selector & Pressure Control
| 7G***99 | Valve Group-Selector & Press Cont | 1 |
6t2287 Valve Gp-Selector & Pressure Control
| 6T***87 | Valve Group-Selector & Press Cont | 1 |
6y2055 Winch Ar-Towing
| 4B***58 | Screw (Identification Plate) Mounting | 4 |
| 6V***27 | Plate, Serial Number; On Left Hand Side Of Winch | 1 |
| 6V***06 | Film (Instruction) | 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 |
7w0332 Kit-Pcv Breather
| 7W***32 | Kit-Pcv Breather | 1 |
2w6697 Pump Gp-Oil
| 2W***97 | Pump Group-Oil-Without Housing | 1 |
Operator Station
8y1147 Rops Ar-Open
| 5G***21 | Mounting Group-Rops | 1 |
| 5G***73 | Rops Group | 1 |
| 8Y***47 | Rops Ar-Open | 1 |
8y4741 Cab Gp-Part 3 Of 4
| 8Y***41 | Cab Group | 1 |
8y4741 Cab Gp-Part 1 Of 4
| 8Y***41 | Cab Group | 1 |
8y4741 Cab Gp-Part 4 Of 4
| 8Y***41 | Cab Group | 1 |
8y4741 Cab Gp-Part 2 Of 4
| 8Y***41 | Cab Group | 1 |
8y5325 Dash Gp
| 8Y***25 | Dash Group | 1 |
8y5036 Dash Gp
| 8Y***36 | Dash Group | 1 |
5g0190 Door Gp-Lh-Part 2 Of 2
| 5G***90 | Door Group-Lh | 1 |
5g0190 Door Gp-Lh-Part 1 Of 2
| 5G***90 | Door Group-Lh | 1 |
5g0200 Door Gp-Rh-Part 1 Of 2
| 5G***00 | Door Group-Rh | 1 |
5g0200 Door Gp-Rh-Part 2 Of 2
| 5G***00 | Door Group-Rh | 1 |
8m7892 Gauge As-Ammeter
| 8M***92 | Gauge As-Ammeter; (Ammeter) | 1 |
9x5715 Gauge Gp-Cluster
| 9X***15 | Gauge Group-Cluster | 1 |
8y5336 Guard Gp-Vandalism
| 8Y***36 | Guard Group-Vandalism | 1 |
8y5047 Guard Gp-Vandalism
| 8Y***47 | Guard Group-Vandalism | 1 |
5g0537 Heater Gp-Cab
| 5G***37 | Heater Group-Cab; Cab Heater Group | 1 |
8y1562 Horn Gp-Electric
| 8Y***62 | Horn Group-Electric | 1 |
8y5037 Instrument Gp
| 8Y***37 | Instrument Group | 1 |
8y5337 Instrument Gp
| 8Y***37 | Instrument Group | 1 |
9w1490 Kit-Meter Service
| 8T***01 | Film; (Service Meter) | 1 |
| 9W***90 | Kit-Service Meter | 1 |
9g6762 Meter-Service
| 9G***62 | Meter-Service | 1 |
| 9W***90 | Kit-Service Meter | 1 |
8y5315 Mounting Gp-Cab
| 2N***79 | Machine Screw--Wire Assembly To Panel | 4 |
| 3D***43 | Hinge-Butt | 2 |
| 4B***81 | Screw-Machine | 4 |
5g0521 Mounting Gp-Rops
| 5G***21 | Mounting Group-Rops | 1 |
5g2002 Pressurizer Gp-Cab
| 5G***02 | Pressurizer Group; Cab Pressurizer Group | 1 |
5g2055 Pressurizer Gp-Part 3 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 1 Of 3
| 5G***55 | Pressurizer Group-Cab | 1 |
8y5238 Rollover Ar
| 5G***49 | Washer Group-Windshield; Windshield Washer Group | 1 |
| 5G***57 | Wiring Group-Cab; Cab Wiring Group | 1 |
| 5G***37 | Heater Group-Cab; Cab Heater Group | 1 |
5g0673 Rops Gp
| 5G***73 | Rops Group | 1 |
8y5043 Seat & Support Gp
| 8Y***43 | Seat & Support Group | 1 |
8y1177 Seat & Support Gp
| 8Y***77 | Seat & Support Group | 1 |
8y4029 Seat Belt Gp
| 8Y***29 | Seat Belt Group | 1 |
8y6713 Seat Gp
| 8Y***13 | Seat Group | 1 |
8y5481 Seat Gp
| 8Y***81 | Seat 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 |
8y5480 Seat Gp-Adjustable
| 8Y***80 | Seat Group-Adjustable | 1 |
8y6714 Seat Gp-Suspension
| 8Y***14 | Seat Group-Suspension | 1 |
2v7961 Suspension As-Seat
| 2V***61 | Suspension As-Seat | 1 |
9c7161 Suspension Gp-Seat-Part 2 Of 2
| 9C***61 | Suspension Group-Seat | 1 |
9c7161 Suspension Gp-Seat-Part 1 Of 2
| 9C***61 | Suspension Group-Seat | 1 |
8y5482 Suspension Gp-Seat
| 8Y***82 | Suspension Group-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 |
Service Equipment And Supplies
Name Plates & Films-Part 1 Of 2
| 03***91 | Pop - Rivet (To Secure Safety Lable) | 4 |
| 3N***90 | Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine | 1 |
| 4B***58 | Screw (Identification Plate) Mounting | 2 |
Name Plates & Films-Part 2 Of 2
| 1P***07 | Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation | 4 |
| 6V***11 | Film; Film-Warning. Located On Front Of Fuel | 1 |
| 6V***14 | Film-Identification; (Oil Filter) | 1 |
Steering And Braking System
8y4227 Brake Gp-Steering-Part 1 Of 3
| 8Y***27 | Brake Group-Steering | 1 |
8y4227 Brake Gp-Steering-Part 3 Of 3
| 8Y***27 | Brake Group-Steering | 1 |
8y2316 Brake Gp-Steering-Part 1 Of 4
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y2316 Brake Gp-Steering-Part 3 Of 4
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y4227 Brake Gp-Steering-Part 2 Of 3
| 8Y***27 | Brake Group-Steering | 1 |
8y2316 Brake Gp-Steering-Part 4 Of 4
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
8y2316 Brake Gp-Steering-Part 2 Of 4
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
5g6103 Case Gp-Steering Clutch
| 5G***03 | Case Group-Steering Clutch | 1 |
5g8725 Clutch Gp-Steering
| 5G***25 | Clutch Group-Steering; Clutch Gp-Steering Brake | 1 |
8y4230 Control Gp-Steering Clutch-Part 2 Of 2
| 8Y***30 | Control Group-Steering Clutch | 1 |
8y4230 Control Gp-Steering Clutch-Part 1 Of 2
| 8Y***30 | Control Group-Steering Clutch | 1 |
8y4626 Lines Gp-Steering
| 8Y***26 | Lines Group-Steering | 1 |
8y5227 Steering Ar
| 8Y***16 | Brake Group-Steering; Brake Gp-Steering | 1 |
| 8Y***26 | Lines Group-Steering | 1 |
| 8Y***27 | Steering Ar | 1 |
8y5119 Valve Gp-Control
| 8Y***19 | Valve Group-Control | 1 |
8y4018 Valve Gp-Control
| 8Y***18 | Valve Group-Control | 1 |
8y5118 Valve Gp-Control
| 8Y***18 | Valve Group-Control | 1 |
8y4011 Valve Gp-Control
| 8Y***11 | Valve Group-Control | 1 |
8y6734 Valve Gp-Control
| 8Y***34 | Valve Group-Control | 1 |
8y6737 Valve Gp-Control
| 8Y***37 | Valve Group-Control | 1 |
8y6735 Valve Gp-Control
| 8Y***35 | Valve Group-Control | 1 |
8y6733 Valve Gp-Control
| 8Y***33 | Valve Group-Control | 1 |
Torque Converter
5g1818 Drive Gp-Power Take-Off
| 5G***18 | Drive Group-Power Take-Off; Power Take-Off Drive Group | 1 |
5g1378 Lines Gp-Torque Converter Cooler
| 5G***78 | Lines Group-Torque Conv Cooler | 1 |
1t1786 Torque Converter Gp
| 1T***86 | Torque Converter Group | 1 |
5g1823 Universal Joint Gp
| 5G***23 | Universal Joint Group | 1 |
Transmission
9p6238 Case & Parts Gp-Part 2 Of 2
| 9P***38 | Case & Parts Group-Planetary | 1 |
9p6238 Case & Parts Gp-Part 1 Of 2
| 9P***38 | Case & Parts Group-Planetary | 1 |
8e7614 Case & Parts Gp-Part 1 Of 2
| 8E***14 | Case & Parts Group-Planetary | 1 |
8e7614 Case & Parts Gp-Part 2 Of 2
| 8E***14 | Case & Parts Group-Planetary | 1 |
8y5052 Control Gp-Transmission
| 8Y***52 | Control Group-Transmission | 1 |
9w9496 Control Gp-Transmission Hydraulic
| 9W***96 | Control Group-Transmission Hydraulic; Control Gp-Transmission Hydraulic | 1 |
9p4540 Drive Gp-Pump
| 9P***40 | Drive Group-Pump | 1 |
5g1239 Filler Gp-Power Train Oil
| 5G***39 | Filler Group-Power Train Oil | 1 |
9p6277 Filter Gp-Transmission
| 9P***77 | Filter Group-Transmission; -Transmission | 1 |
9w9485 Transfer Case & Gear Gp
| 9W***85 | Gear & Case Group-Transfer | 1 |
5g8713 Gear Gp-Bevel
| 5G***13 | Gear Group-Bevel | 1 |
5g0905 Lines Gp-Power Train Oil
| 5G***05 | Lines Group-Power Train Oil | 1 |
9w9486 Planetary Gp-Transmission-Part 2 Of 2
| 9W***86 | Planetary Group | 1 |
9w9486 Planetary Gp-Transmission-Part 1 Of 2
| 9W***86 | Planetary Group | 1 |
8e7652 Pump Gp
| 8E***52 | Pump Group | 1 |
9p7240 Pump Gp-Gear
| 9P***40 | Pump Group-Gear | 1 |
9p7239 Pump Gp-Gear
| 9P***39 | Pump Group-Gear | 1 |
8e7651 Pump Gp-Gear
| 8E***51 | Pump Group-Gear | 1 |
5t8739 Spider & Bearing Gp
| 5T***39 | Spider & Bearing Group | 1 |
9w9483 Transmission Ar
| 1T***86 | Torque Converter Group | 1 |
| 6V***19 | Kit-Gasket; (Transmission Filter) | 0 |
| 6V***21 | Kit-Gasket; (Transfer Gear) | 0 |
9w9495 Valve Gp
| 9W***95 | Valve Group | 1 |
9w9494 Valve Gp-Selector & Press Control
| 9W***94 | Valve Group-Selector & Press Cont | 1 |
Undercarriage
1127875 Frame Gp-Track Roller
| 11***75 | Frame Group-Track Roller | 1 |
8y1026 Frame Gp-Track Roller
| 8Y***26 | Frame Group-Track Roller | 1 |
8y0268 Guard Gp-Track Roller
| 8Y***68 | Guard Group-Track Roller | 1 |
1043606 Guard Gp-Track Roller-Rear
| 10***06 | Guard Group-Track Roller | 1 |
9n4200 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***10 | Link As-Track | 1 |
6y1674 Track Gp-2 Required
| 4K***38 | Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In) | 152 |
| 5A***87 | Bolt-Track-( 9/16 X 18 X 3.0 In) | 4 |
| 6Y***81 | Shoe-Track | 38 |
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 |
| 6Y***85 | Shoe-Track | 38 |
| 6Y***86 | Shoe-Track Master | 1 |
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 |
6s8902 Counterweight Gp-Idler
| 6S***02 | Counterweight Group-Idler | 1 |
1038842 Guard Gp-Recoil
| 10***42 | Guard Group-Recoil Mechanism | 1 |
5g0381 Guard Gp-Recoil Mechanism
| 5G***81 | Guard Group-Recoil Mechanism | 1 |
5g8703 Guard Gp-Recoil Mechanism
| 5G***03 | Guard Group-Recoil Mechanism | 1 |
1038843 Guard Gp-Recoil Mechanism
| 10***43 | Guard Group-Recoil Mechanism | 1 |
1025937 Guard Gp-Rock
| 10***37 | Guard Group-Rock | 1 |
1081580 Guard Gp-Rock
| 10***80 | Guard Group-Rock | 1 |
5g8729 Idler Gp-Front-Part 1 Of 2
| 5G***29 | Idler Group-Front | 1 |
5g8729 Idler Gp-Front-Part 2 Of 2
| 5G***29 | Idler Group-Front | 1 |
6s7272 Idler Gp-Front-Part 2 Of 2
| 6S***72 | Idler Group-Front | 1 |
6s7272 Idler Gp-Front-Part 1 Of 2
| 6S***72 | Idler Group-Front | 1 |
6y1510 Link As-Track
| 6Y***10 | Link As-Track | 1 |
6y1512 Link As-Track
| 6Y***12 | Link As-Track | 1 |
3t4353 Roller Gp-Track-4 Required
| 3T***53 | Roller Group-Track; Double Flange Track Roller Group | 1 |
3t4352 Roller Gp-Track-8 Required
| 3T***52 | Roller Group-Track; Single Flange Track Roller Group | 1 |
6s3609 Roller Gp-Track Carrier
| 6S***09 | Roller Group-Track Carrier; Track Carrier Roller Group | 1 |
5g0378 Support Gp-Undercarriage
| 5G***78 | Support Group-Undercarriage | 1 |
5g0379 Support Gp-Undercarriage
| 5G***79 | Support Group-Undercarriage | 1 |
D4C II serial number reference
The PIN plate is a metal tag riveted to the tractor mainframe on the front left frame rail; Caterpillar also stamps the number directly into the frame at the same spot so it stays legible if the plate is lost. Read it as an 8-character code: a 3-character prefix (7KG, 9BG) tying the machine to its model/series/production block, followed by a 5-digit sequential unit number.
| Prefix | Identifies | Notes |
|---|---|---|
| 7KG | D4C II (D4C Series II) track-type tractor, Standard and LGP undercarriage | Machine S/N 7KG1-up. Naturally aspirated Cat 3204 diesel with powershift transmission, 3 forward/3 reverse. Mechanical steering clutches and brakes, not hydrostatic or differential steering. One prefix block covers both standard-gauge and LGP tractors, split by undercarriage/attachment part numbers rather than the prefix itself. Sits early-to-mid in the II-series production run, roughly the 1990-92 timeframe. A few used-equipment listings tie this block to Japan-market machines - unconfirmed, verify with a dealer. |
| 9BG | D4C II (D4C Series II) track-type tractor, Standard and LGP undercarriage | Machine S/N 9BG1-up, a continuation block following 7KG within the same Series II parts catalog - factory attachment listings pair the two (for example one instrument group fitted from 7KG575-up and 9BG273-up). Same naturally aspirated 3204 diesel and powershift driveline as 7KG. Runs through the later part of the II series ahead of the Series III changeover; exact cutover date isn't published - confirm with dealer. |
Frequently asked questions
What engine powers the Caterpillar D4C Series II?
A naturally aspirated Caterpillar 3204 diesel: a 5.2 L (317-318 cu in) four-cylinder rated around 80 hp gross (59-63 kW, figures vary slightly by source), about 79 hp (59 kW) net, paired with a 3-speed forward/3-speed reverse powershift transmission. This differs from the later D4C Series III, which uses a turbocharged 3046 engine.
What is the operating weight of the D4C Series II?
About 7,560-7,580 kg (16,660-16,710 lb) in Standard configuration. The low ground pressure (LGP) version, with wider tracks, runs close to 7,900 kg (17,430 lb). There's no XL configuration on this series; XL arrived later with the Series III. Exact weight varies with blade, canopy/cab, and other factory options.
What replaced the Cat D4C Series II?
The Caterpillar D4C Series III, built roughly 1993 to 2001. It stayed in the same size class but switched to a turbocharged 3046 engine for more power, and later added a hydrostatic (Hystat) drive option alongside the standard powershift.
What D4C II owners discuss
What's the most common complaint about the D4C II's powershift transmission?
Slipping or ratcheting under load is the recurring complaint, more common than an outright broken gear. The machine hesitates or loses drive in a gear that used to pull fine. That points to worn clutch packs or planetary gearing, not one single failed part. Before condemning the transmission, confirm the sump actually holds TO-4 spec oil and not a straight engine oil; running the wrong oil grade is a repeat cause of shifting complaints on these machines. A shop that can check direction-clutch pressure against speed-clutch pressure in each gear can usually narrow a clutch-pack problem down before the case ever comes apart.
Is the steering clutch on a D4C II adjustable like the older D4 models?
No, and that catches owners used to earlier D4 generations. On this series the clutch pack itself has no field adjustment. What owners actually adjust is the cam linkage feeding the brake band, and in normal service it rarely needs touching. If a brake pedal goes to the floor with the band already snugged all the way down, the small adjusting screw at the bottom of the case has likely sheared or worn through, not just loosened. That means opening the compartment, not another turn of the wrench. Because this affects stopping and turning control, have your dealer verify the brake and steering-clutch adjustment before returning the machine to grade work.
The track keeps loosening no matter how often I grease the tensioner. What's going on?
If grease pushes back out the relief fitting soon after you adjust it, the tensioner group isn't holding. That points to worn internal bushings or seals in the tensioner, not a need for more grease. Owners chasing this on early-90s D4C IIs typically also find worn idler bushings, dry seals, and pads worn enough that the whole idler needs attention, not just the tensioner. As a general rule on this undercarriage, run the track a little loose rather than tight. A tight track loads the bushings, idlers, and sprocket harder and speeds up wear across the whole chain; a bit of sag between the bottom rollers is normal.
What are the known quirks of the naturally aspirated 3204 in the D4C II?
Cold, reluctant starting is the top complaint, usually traced to weak injectors or low compression rather than bad glow plugs. The plugs still need to be held long enough to actually heat up, roughly 20 to 30 seconds, and kept on until the engine runs smooth rather than just cranks. Some smoke and blow-by is normal as these naturally aspirated engines rack up hours; it comes from worn sleeves, pistons, and rings rather than one bad part. A rough or surging idle that won't settle usually traces to the governor sticking rather than the injection pump itself. Working the throttle while checking governor linkage for free movement is the first diagnostic step before anyone pulls the pump. Crankshaft bearing wear is the sneaky one: it doesn't always show up as rough running, so oil pressure and oil analysis trends tell you more than how the engine sounds.
Gauges are dead and the panel won't light, but the engine still starts. Bad gauges or something else?
Owners hitting this on the D4C II almost always find a wiring fault, not a batch of bad gauges. If jumping the starter solenoid directly gets the engine running but the panel stays dark, the fault sits upstream of the gauges, in the harness or a ground, not in the senders. A loose connection in the harness routing behind the engine near the air cleaner, where the feed to the dash panel runs, is a repeat culprit on these machines. Work the fault from the battery forward: cable connections first, then voltage at the fuses, ignition switch, and any nearby relays, before anyone replaces a gauge or a sender.
Blade response feels slow or hesitates when I snap the lever quickly. Normal or a problem?
Some lag when the lever is snapped fast is a known trait of these older open-center hydraulic systems, and it often improves just by working the lever more smoothly. Worth testing before assuming a fault. If the blade is genuinely slow, weak, or settles down on its own over a few minutes, work through the usual order: hydraulic oil level and condition first, then main pump output, then whether the relief valve has drifted out of setting, then wear in the control-valve spools or the makeup valves inside the lift section. A few drops of weep at the lift-cylinder rod seals over a half hour of running is normal wear for a machine this age; a steady stream or a puddle underneath is not.
What should I check before buying a used D4C II?
Start with the undercarriage: measure shoe and link wear on flat ground, check the sealing area at each link for scratches or roughness, and look at the idler and sprocket for ridging or mushroomed teeth. That tells you more about true working hours than the hour meter does. Pull the rear inspection covers over the brake and steering-clutch compartment; it should be dry, with no bevel-gear oil weeping in and no sign of water intrusion. Walk the whole machine looking for oil on the ground; the engine, transmission case, final drives, and blade-lift cylinders each leak in their own telling way. Then run it: cycle the blade, run it through turns in both directions at more than one speed, and confirm it never hesitates or bogs going into gear. Ask for maintenance records and find out what kind of work put the hours on. A dozer that graded lightly its whole life wears very differently than one that ran production work at full throttle all day.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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