Caterpillarengine - machine(no series)

Caterpillar 3204

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar 3204 is a 4.4-liter (269 cu in) inline-four diesel from Caterpillar's 3200 engine family, built as the four-cylinder half of the 3208 V8 architecture. It is cataloged under two lines: the 3204 Industrial Engine as a standalone power unit (serial prefixes 2TB, 3PC, 6DC, 7EB) and the 3204 Engine - Machine as the factory power plant fitted into Cat-branded equipment (serial prefixes 10X, 1AK, 45V, 7YJ). Production runs from the early 1980s into the 2000s across several internal revisions. Bare engine dry weight runs approximately 500 kg (1,102 lb); the engine carries no standalone operating weight, transport dimensions, or travel speed of its own, since those figures belong to whichever host machine or chassis it powers. Cat fitted the 3204 into the D3 crawler tractor, 931/941/943/951 track loaders, 910/920 wheel loaders, early 416/426 backhoe loaders, and various generator sets and industrial or agricultural equipment. It is offered naturally aspirated or turbocharged (3204T), with precombustion-chamber (PC) or direct-injection (DI) fuel systems depending on build era, and is mechanically governed with no electronic control module.

Cat opened the 3204 line with a precombustion-chamber fuel system, moved to direct injection in the late 1970s, and refined the DI pump again with a scroll-type design in the mid-1980s, trading some combustion smoothness for better fuel economy and easier cold starts. Piston design shifted from an original two-ring layout toward a three-ring piston on later production and most rebuilds, and the turbocharged 3204T variant widened the power band without changing the basic bottom end or bore and stroke. None of these changes touched the core architecture: same 108 x 127 mm bore and stroke, same block family, same mechanical governor across the run. Because it powered such a broad spread of Cat crawler tractors, track loaders, wheel loaders, and backhoes over two decades, the 3204 remains one of the more common used and rebuildable small Cat diesels in the field today. Its mechanical fuel system and analog gauge cluster appeal to buyers who want to avoid ECM diagnostics, and parts commonality across the PC and DI variants keeps rebuild kits and overhaul components readily available in the used and aftermarket parts market.

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 3204 specifications

Engine

Identity noteCat 3204 is a Cat 3200-series inline-4 diesel power unit, not a standalone mobile machine. It was factory-fitted across many different host machines (crawler loaders, small dozers, backhoe loaders, wheel loaders, forklifts, industrial power units, generator sets, and marine auxiliary sets), and appears under multiple build/arrangement designations (3204, 3204T, 3204DI, 3204PC). No single operating-weight, transport-dimension, or travel-speed spec sheet exists for '3204' as a machine; those figures are published per host machine instead.
Configuration4-cylinder inline, 4-stroke-cycle diesel
Displacement4.4 L (269 cu in)
Bore x stroke108 mm x 127 mm (4.25 in x 5.00 in)
Compression ratioapprox. 16.5:1 (mechanical, non-electronic engine)
AspirationNaturally aspirated on base builds; turbocharged on 3204T builds
Fuel systemDirect injection via mechanical, camshaft-driven distributor-type injection pump
Power ratingFactory ratings vary widely by build/application: roughly 40-120 kW (54-161 hp) across the family. Naturally aspirated builds commonly land near 45-56 kW (60-75 hp); turbocharged (3204T) builds commonly land near 80-90 kW (110-120 hp). Confirm the exact rating from the engine's own arrangement/serial number plate.
Governed speed rangeapprox. 2,100-2,800 rpm depending on build
Emissions tierPredates U.S. EPA/Tier emissions certification; mechanical diesel with no certified emissions tier

Weights

Machine operating weightNot applicable. The 3204 is a power unit, not a self-contained machine; operating weight is a function of the host machine (loader, dozer, backhoe, forklift, genset, etc.) and is published under that host machine's own listing, not under the engine.
Bare engine dry weightCommonly cited near 500 kg (1,102 lb) for the bare engine without fluids, alternator, or starter. Reported by a single class of aftermarket reference and not cross-verified against a factory document; treat as approximate and confirm against the specific build's technical data sheet.

Dimensions

Transport length/width/heightNot applicable. No transport envelope is published for the engine alone; overall machine dimensions belong to the host equipment it powers.
Bare engine envelopeApproximate reported block envelope near 900 mm L x 650 mm W x 850 mm H (35.4 in x 25.6 in x 33.5 in). Low-confidence, single-source figure; verify against the build's own outline drawing before use.

Performance

Travel speed / dig / lift / drawbarNot applicable. These are host-machine performance figures, not engine specs, and are not published for the 3204 as a standalone unit.
Rated/governed speedapprox. 2,100-2,800 rpm depending on naturally aspirated vs. turbocharged build

Service capacities (summary)

Engine oil (crankcase, with filter)Reported figures conflict sharply across available references (from roughly 4.3-5.2 L up to 9.5-19 L depending on source and build). Varies by configuration/series - confirm against the dipstick marking or service manual for the specific build/arrangement rather than relying on a single figure.
Cooling systemCapacity depends on the host machine's radiator/cooling package, not the bare engine alone; not consistently published across sources. Varies by installation - verify against the host machine's own cooling-system spec.
Fuel tankNot applicable to the engine itself; fuel tank capacity is set by the host machine or genset base fuel tank, not by the 3204 engine.
Recommended engine oilDiesel engine oil to Cat DEO specification (or equivalent), commonly SAE 15W-40 for general duty.

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

3204 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with oil filter)Approx. 9.5 L (2.5 US gal) refill including filter change on the standard oil pan. Some references show as low as 4.3-5.2 L (4.5-5.5 US qt) for a pan-only refill without filter, and others show up to 12.5 L (3.3 US gal) — varies by oil pan/sump arrangement and application. Confirm against the dipstick full mark for the specific engine arrangement.Cat Diesel Engine Oil (DEO) or equivalent meeting API CD/CE. SAE 15W-40 for general and warm-climate duty; SAE 10W-30 preferred where ambient stays roughly -18°C to 40°C (0°F to 104°F).
Cooling systemEngine-only (block and head) capacity approximately 12.0 L (3.2 US gal). Total system capacity depends on the radiator and piping fitted by the machine/genset builder and is not fixed at the engine level; one reference lists a total-system figure near 20 L (5.3 US gal) for a radiator-equipped install — treat as varies by configuration.Cat Extended Life Coolant (ELC), or a 30%-50% ethylene glycol antifreeze mixed with clean, soft water plus supplemental coolant additive (SCA) if running a conventional, non-ELC coolant.
Fuel system / tankNot standardized at the engine level. The 3204 is sold as a bare power unit ("engine-machine"); it has no integral fuel tank, so tank size is set by whatever equipment, genset, or pump package the engine is installed in. Confirm tank size against the OMM for that specific installation.Clean No. 2-D diesel fuel meeting Cat fuel specification. Service the primary fuel filter/water separator and secondary spin-on fuel filter on the regular interval; drain water from the separator daily.
Grease (spec only)Spec only — no dedicated reservoir; apply at external grease fittings on mounting and linkage hardware as fitted.Cat Multipurpose Grease, NLGI 2, lithium-complex base, rated -30°C to 40°C (-22°F to 104°F).

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

Caterpillar 3204 maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level with the dipstick before starting; top up with the correct grade if low.
  • Check coolant level in the radiator or expansion tank with the engine cold.
  • Drain water and sediment from the fuel/water separator bowl.
  • Inspect for fuel, oil, and coolant leaks around the injection pump, lines, and gasket faces.
  • Check the air cleaner restriction indicator and service the element if it reads red.
  • Weekly: inspect the fan, water pump, and alternator drive belt for cracking, glazing, or incorrect tension.
Every 250 h
  • Change engine oil and replace the oil filter element.
  • Test coolant SCA (supplemental coolant additive) concentration and add additive as needed on conventional-coolant systems.
  • Replace the fuel filter element.
  • Check and adjust valve lash cold: intake 0.20 mm (0.008 in), exhaust set to the wider factory spec.
  • Clean the crankcase breather to prevent oil consumption and case pressure buildup.
Every 500 h
  • Inspect drive belts for wear, glazing, or cracking; re-tension or replace as needed.
  • Inspect the turbocharger on 3204T variants for shaft end play, boost leaks, and oil seepage at the compressor and turbine housings.
  • Check engine mounts and brackets for cracking or fatigue.
  • Pull an oil sample for analysis ahead of the scheduled drain and log the trend.
  • Check the fuel transfer pump and check valve for correct output pressure; watch for black smoke as an early failure sign.
Every 1,000 h
  • Re-check and reset valve lash clearances on intake and exhaust.
  • Inspect or replace the air cleaner element regardless of the restriction-indicator reading.
  • Inspect injector spray pattern and pop-off pressure; trace black smoke or rough idle to worn injectors.
  • Check the water pump for shaft play, bearing noise, or seepage at the weep hole.
  • Replace the crankcase breather element.
Every 2,000 h
  • Pressure-test injectors and check injection pump timing against factory spec.
  • Inspect the connecting rod little-end bushings for play; this is a documented 3204 wear point.
  • Check cylinder compression and blow-by to gauge ring and bore condition.
  • Inspect turbocharger shaft and wheel clearance on 3204T variants; rebuild or replace if end play is out of tolerance.
  • Inspect the flywheel housing and vibration damper for cracks or bonding failure.
Every 6,000 h
  • Drain, flush, and refill the cooling system with fresh coolant and correct SCA charge, or convert to a long-life coolant per shop practice.
  • Evaluate the block, bores, and crankshaft for an in-frame overhaul; confirm whether the engine carries original two-ring pistons or later three-ring pistons before ordering parts.
  • Rebuild or replace the fuel transfer pump and send the PC or DI injection pump out for full recalibration.
  • Replace the water pump if not already done at an earlier interval, given this engine's known cooling system wear pattern.

Servicing the 3204 beyond the schedule

Predictive Maintenance & Fluid Analysis

Run scheduled oil sampling ahead of every 250-hour drain to catch bearing and ring wear before it shows up as low oil pressure. On conventional-coolant systems, test SCA concentration at the same interval; skipping it lets corrosion and cavitation attack the block and water pump. Watch the mechanical fuel system for early warning signs since there is no ECM or fault code list: black smoke, rough idle, or hard cold starts usually point to worn injectors or a failing transfer pump check valve before a hard failure occurs.

Corrective & Common Repairs

Most field repairs on the 3204 trace back to three parts: the connecting rod little-end bushing, the water pump, and the DI transfer pump check valve. A knocking noise under load or excess piston-pin play points to the little-end bushing, a known wear point on this engine. Persistent black smoke or hard starting on DI variants often traces to a leaking transfer pump check valve rather than the injectors themselves. Coolant weep at the water pump shaft or bearing noise calls for early replacement given this engine's cooling system wear history.

Overhaul & Rebuild Points

An in-frame overhaul on the 3204 centers on the block, pistons, and rod bearings rather than a full teardown. Early builds used two-ring pistons; most rebuilds now specify three-ring piston sets for better oil control and durability, so confirm which design is fitted before ordering. Check the connecting rod little-end bushings for play at every overhaul, and inspect turbocharger shaft and wheel clearance on 3204T variants, since boost-side wear compounds ring and bore wear if left unaddressed. Recalibrate the PC or DI injection pump after any bottom-end work.

Seasonal & Environment Servicing

Cold-start reliability on the 3204 depends on injection timing and compression more than any glow-plug or intake-heater system, so keep both in spec heading into winter and run a coolant mix rated for the lowest expected temperature. In hot, dusty applications, shorten air filter and crankcase breather service intervals below the standard 1000-hour mark to protect the naturally aspirated or turbocharged intake tract. Drain the fuel/water separator more often in humid or wet-season conditions to keep water out of the DI or PC fuel system.

3204 common service parts

Part numberPart
6V-7615Film-Identification-On Fuel FilterCheck fitment →
9S-8752Nut-FullCheck fitment →
8T-2475Transmission FilterCheck fitment →

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

3204 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
Engine Oil Pressure Warning Lamp (red)Oil pressure has dropped below the safe minimum monitored by the oil pressure sender on the cylinder headLow oil level, clogged oil filter, worn oil pump or bearings, faulty pressure sender/switchStop the engine immediately, check oil level, and inspect the sender/wiring before restarting
Coolant Temperature Warning Lamp (red)Engine coolant temperature has exceeded the safe operating rangeLow coolant level, blocked radiator core, failed thermostat, slipping or broken fan belt, water pump failureIdle to cool, then shut down and check coolant level, belt tension, and radiator core before continuing
Charging System Warning Lamp (red, battery symbol)Alternator is not charging the battery circuitBroken or slipping alternator belt, failed alternator, loose or corroded wiring/connectionsCheck belt tension and battery/alternator connections, then test alternator output
Air Filter Restriction Indicator (yellow, on air cleaner housing or dash)Intake vacuum has reached the point where the air filter element is restricting airflow to the engineDirty or clogged primary air filter element, collapsed or leaking intake hoseService or replace the air filter element and reset the indicator
Low Fuel Level Warning LampFuel tank level has dropped to reserveNormal fuel consumption, or a faulty fuel gauge senderRefuel; bleed the fuel system if the tank was run dry
Water-in-Fuel / Fuel Filter Restriction Indicator (units fitted with a sedimentor-type primary filter)Water separator bowl has collected water, or the fuel filter is restricting flowWater contamination in fuel, clogged secondary spin-on fuel filterDrain the sedimentor bowl and/or replace the fuel filter element; check the fuel supply for contamination
Glow Plug / Cold-Start Aid Indicator Lamp (early, preheat-equipped units)Indicates the intake air preheat/glow plug cycle is active before cranking in cold weatherNormal cold-start cycling; a lamp that stays on or fails to illuminate points to a preheat relay or wiring faultLet the preheat cycle finish before cranking; if the lamp misbehaves, check the preheat relay, glow plugs, and wiring

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

3204 attachments & work tools

Buckets/blades (general work tools)

Not documented as a standalone machine line. The 3204 is a naturally aspirated or turbocharged inline-4 diesel engine (4.4 L), not a machine model, so it carries no dedicated bucket, blade, or coupler catalog of its own.

Coupler/mounting systems

Not applicable. Coupler and mount standards (pin-on, quick-coupler, etc.) are specified per host chassis, not per engine, and Cat does not publish a coupler standard tied to the 3204 engine designation.

Hydraulic-kit/arrangement notes

Not documented for a "3204" work-tool circuit. Auxiliary hydraulic valve/kit arrangements for work tools are published per host machine (e.g. backhoe loader, track loader, wheel loader) in which the 3204 was installed as the power unit, not per engine.

Factory guarding/configuration options

Not documented. Guarding packages (ROPS/FOPS, forestry, waste-handling, etc.) are configured against the host machine's frame and cab, independent of which engine option (3204 or an alternative) that machine carried.

All 3204 assemblies by section

Every catalogued assembly group for the Caterpillar 3204. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
8n6624 Air Cleaner Group
8n6623 Air Cleaner Group
8n2051 Air Compressor Group
1w5824 Air Compressor Group
1W***24Air Compressor Group; Air Compressor Group1
See all parts with full part numbers in Heavy Parts AI →
8n4780 Cartridge Assembly-Turbocharger*R
4w4218 Air Lines Group
1w5291 Air Compressor Lines Group
1W***91Lines Group-Air Compressor; Air Compressor Lines Group1
See all parts with full part numbers in Heavy Parts AI →
4w5025 Air Lines Group
1w8869 Turbocharger Oil Lines Group
1W***69Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group1
See all parts with full part numbers in Heavy Parts AI →
6n6085 Exhaust Manifold Group
6N***85Manifold Group-Exhaust; Exhaust Manifold Group1
See all parts with full part numbers in Heavy Parts AI →
7n6336 Muffler Group
1w5822 Muffler Group
6n5079 Turbocharger Group
6N***79Turbocharger Group; Turbocharger Group1
See all parts with full part numbers in Heavy Parts AI →
8n4774 Turbocharger Group
Basic Engine
8n9509 Belt Tightener Group
2w1337 Camshaft Group
2W***37Camshaft Group-Single; Single Camshaft Group1
See all parts with full part numbers in Heavy Parts AI →
1w1352 Valve Mechanism Cover Group
1W***52Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
See all parts with full part numbers in Heavy Parts AI →
Crankshaft Bearing Replacements
1W***55Bearing (0.25mm Undersize)2
1W***56Bearing (0.51mm Undersize)2
1W***57Bearing (1.27mm Undersize)2
See all parts with full part numbers in Heavy Parts AI →
1w9768 Crankshaft Group
1W***68Crankshaft Group; Crankshaft Group1
See all parts with full part numbers in Heavy Parts AI →
7n4821 Cylinder Block Assembly
2w7902 Cylinder Block Assembly
6n9049 Cylinder Block Group
6N***49Cylinder Block Group; Cylinder Block Group1
See all parts with full part numbers in Heavy Parts AI →
7c2320 Head As-Cylinder Service*R
7w9391 Cylinder Head Assembly
6n2397 Cylinder Head Group*R
6N***97Cylinder Head Group; Cylinder Head Group1
See all parts with full part numbers in Heavy Parts AI →
6n2397 Cylinder Head Gp*R
6N***97Cylinder Head Group; Cylinder Head Group1
See all parts with full part numbers in Heavy Parts AI →
2w0011 Cylinder Head Group*R
7w9394 Cylinder Head Gp*R
2w1682 Fan Drive Group-(Belt)
2w4002 Water Pump Drive Group-(Belt)
2W***02Drive Group-Water Pump; Water Pump Drive Group1
See all parts with full part numbers in Heavy Parts AI →
6n2683 Flywheel Group
1w1355 Front Gear Group
1W***55Gear Group-Front; Front Gear Group1
See all parts with full part numbers in Heavy Parts AI →
6n1318 Flywheel Housing Group
6N***18Housing Group-Flywheel; Flywheel Housing Group1
See all parts with full part numbers in Heavy Parts AI →
1w1353 Housing Gp-Front
1W***53Housing Group-Front; Front Housing Group1
See all parts with full part numbers in Heavy Parts AI →
2w1678 Engine Lifting Group
2W***78Lifting Group; Lifting Eye Gp-Engine1
See all parts with full part numbers in Heavy Parts AI →
7n4129 Engine & Transmission Mounting Group-Flexible
6n3052 Oil Pan Group
6N***52Pan Group-Oil; Pan Gp-Engine Oil1
See all parts with full part numbers in Heavy Parts AI →
2w1040 Connecting Rod And Piston Group-4 Required
2W***40Piston & Rod Group; Connecting Rod And Piston Group1
See all parts with full part numbers in Heavy Parts AI →
2w4841 Piston Group
8n4928 Sound Suppression Pulley Group
4w8664 Pulley Group
6n7205 Auxiliary Drive Pulley Group
6N***05Pulley Group-Auxiliary Drive; Auxiliary Drive Pulley Group1
See all parts with full part numbers in Heavy Parts AI →
7n0946 Engine Support Group
7N***46Support Group-Engine; Engine Support Group1
See all parts with full part numbers in Heavy Parts AI →
3v6283 Support Gp-Transmission & Engine
2w1676 Engine Parts Sound Suppression Arrangement
2W***76Suppression Ar-Sound; Suppression Ar-Sound-Engine1
4W***65Elbow-Exhaust; Exhaust Elbow1
7N***36Muffler Group; Muffler Group1
See all parts with full part numbers in Heavy Parts AI →
1w5720 Valve Mechanism Group
1W***20Valve Mechanism Group; Valve Mechanism Group1
See all parts with full part numbers in Heavy Parts AI →
Cab, Gauges And Accessories
9g9288 Hydraulic Tank Cap Protection Cover Group
9G***88Protection Cover Group; -Hydraulic Tank-Steering Tank Fill Cap-Hydraulic Tank Fill Cap1
See all parts with full part numbers in Heavy Parts AI →
4v7849 Adjuster Group-Suspension Seat
8v1177 Seat Adjuster Group
8v1159 Air Conditioner Gp-Part 1 Of 2-Type 1
8V***59Air Conditioner Group; Air Conditioner Group1
See all parts with full part numbers in Heavy Parts AI →
8v1159 Air Conditioner Gp-Part 2 Of 2
8V***59Air Conditioner Group; Air Conditioner Group1
See all parts with full part numbers in Heavy Parts AI →
8v1159 Air Conditioner Gp-Part 2 Of 2-Type 1
8V***59Air Conditioner Group; Air Conditioner Group1
See all parts with full part numbers in Heavy Parts AI →
8v1159 Air Conditioner Gp-Part 1 Of 2
8V***59Air Conditioner Group; Air Conditioner Group1
See all parts with full part numbers in Heavy Parts AI →
9g9813 Alarm Group
9G***13Alarm Group; -Action-Action, Engine Overspeed1
See all parts with full part numbers in Heavy Parts AI →
6w9323 Blower Gp
6c0880 Canopy Arrangement
3Y***60Canopy Group; Canopy Group-Soft1
6C***80Canopy Ar1
8V***16Platform Group-Cab1
See all parts with full part numbers in Heavy Parts AI →
3y7160 Canopy Group-Soft
3Y***60Canopy Group; Canopy Group-Soft1
See all parts with full part numbers in Heavy Parts AI →
7n4297 Clutch & Refrig Compressor Gp*R
7N***97Clutch & Refrig Compressor Group1
See all parts with full part numbers in Heavy Parts AI →
7n4296 Clutch & Refrigerant Compressor Group*R
7N***96Compressor Group-Clutch & Refrig1
See all parts with full part numbers in Heavy Parts AI →
7n6245 Compressor Gp-Refrigerant
7N***45Compressor Group-Refrigerant; Refrigerant Compressor Group1
See all parts with full part numbers in Heavy Parts AI →
7n6245 Refrigerant Compressor Group
7N***45Compressor Group-Refrigerant; Refrigerant Compressor Group1
See all parts with full part numbers in Heavy Parts AI →
8v2512 Control & Duct Gp-Part 2 Of 4
8V***12Control & Duct Group; Control And Duct Group1
See all parts with full part numbers in Heavy Parts AI →
8v2512 Control & Duct Gp-Part 4 Of 4
8V***12Control & Duct Group; Control And Duct Group1
See all parts with full part numbers in Heavy Parts AI →
8v2512 Control & Duct Gp-Part 3 Of 4
8V***12Control & Duct Group; Control And Duct Group1
See all parts with full part numbers in Heavy Parts AI →
8v2512 Control & Duct Gp-Part 1 Of 4
8V***12Control & Duct Group; Control And Duct Group1
See all parts with full part numbers in Heavy Parts AI →
7k5636 Protection Cover Group-Transmission Oil Cap
7K***36Cover Group-Protection; Protection Cover Group1
See all parts with full part numbers in Heavy Parts AI →
4v9830 Seat Cover Group
7v1768 Arm Cushion Assembly-L.H.
7V***68Cushion As-Arm; Cushion Assembly Arm L.H.1
See all parts with full part numbers in Heavy Parts AI →
4v6399 Arm Cushion Assembly-R.H.
4V***99Cushion As-Arm; Cushion Assembly Arm R.H.1
See all parts with full part numbers in Heavy Parts AI →
9v4331 Dash Group
9v4332 Door Group-R.H. Rear Cover-Literature
6w9739 Fork Gp-Pallet
09***37Service Group-Fork Positioner1
6W***39Fork Group1
See all parts with full part numbers in Heavy Parts AI →
6w8933 Fork Gp-Pallet
09***37Service Group-Fork Positioner1
6W***33Fork Group1
See all parts with full part numbers in Heavy Parts AI →
6w8900 Fork Gp-Pallet
09***37Service Group-Fork Positioner1
6W***00Fork Group1
See all parts with full part numbers in Heavy Parts AI →
8v2505 Gauge Gp-Temperature
8v2513 Air Pressure Gauge Group
8v5221 Fuel Gauge Group
8v1167 Vandalism Guard Group
8V***67Guard Group-Vandalism; Guard Gp-Vandalism (Instrument Panel)1
See all parts with full part numbers in Heavy Parts AI →
6w4861 Heater & Air Conditioner Ar
1S***47Seal 17.17 mm. (.676 In.) I.D.2
1W***43Radiator Group; Radiator Group1
6M***62Seal 10.82 mm. (.426 In.) I.D.2
See all parts with full part numbers in Heavy Parts AI →
6w4862 Heater & Air Conditioner Ar-French
1W***47Radiator Group1
6W***55Lines Group-Air Conditioner; Air Conditioner Lines Group1
6W***62Heater & Air Conditioner Ar1
See all parts with full part numbers in Heavy Parts AI →
6w4862 Heater & Conditioner Ar-French
1W***47Radiator Group1
6W***55Lines Group-Air Conditioner; Air Conditioner Lines Group1
6W***62Heater & Air Conditioner Ar1
See all parts with full part numbers in Heavy Parts AI →
8v2507 Heater Arrangement
3V***81Lines Group-Cab Heater1
8V***54Heater Group-Cab; Cab Heater Group1
8V***07Heater Ar1
See all parts with full part numbers in Heavy Parts AI →
8v1154 Heater Gp-Cab-Part 2 Of 2
8V***54Heater Group-Cab; Cab Heater Group1
See all parts with full part numbers in Heavy Parts AI →
8v1154 Heater Gp-Cab-Part 1 Of 2
8V***54Heater Group-Cab; Cab Heater Group1
See all parts with full part numbers in Heavy Parts AI →
5v6035 Electric Horn Group
9v5346 Lighting Group-Roading-Part 4 Of 4
9V***46Lighting Group-Road; Lighting Group-Roading1
See all parts with full part numbers in Heavy Parts AI →
9v5346 Lighting Group-Roading-Part 1 Of 4
9V***46Lighting Group-Road; Lighting Group-Roading1
See all parts with full part numbers in Heavy Parts AI →
9v5346 Lighting Group-Roading-Part 3 Of 4
9V***46Lighting Group-Road; Lighting Group-Roading1
See all parts with full part numbers in Heavy Parts AI →
9v5346 Lighting Group-Roading-Part 2 Of 4
9V***46Lighting Group-Road; Lighting Group-Roading1
See all parts with full part numbers in Heavy Parts AI →
6w4238 Lighting Gp-Roading-Part 2 Of 4
6W***38Lighting Group-Roading; Lighting Group-Roading1
See all parts with full part numbers in Heavy Parts AI →
6w4238 Lighting Gp-Roading-Part 4 Of 4
6W***38Lighting Group-Roading; Lighting Group-Roading1
See all parts with full part numbers in Heavy Parts AI →
6w4238 Lighting Gp-Roading-Part 3 Of 4
6W***38Lighting Group-Roading; Lighting Group-Roading1
See all parts with full part numbers in Heavy Parts AI →
6w4238 Lighting Gp-Roading-Part 1 Of 4
6W***38Lighting Group-Roading; Lighting Group-Roading1
See all parts with full part numbers in Heavy Parts AI →
6w4855 Lines Gp-Air Conditioner-Part 1 Of 3
6W***55Lines Group-Air Conditioner; Air Conditioner Lines Group1
See all parts with full part numbers in Heavy Parts AI →
6w4855 Lines Gp-Air Conditioner-Part 3 Of 3
6W***55Lines Group-Air Conditioner; Air Conditioner Lines Group1
See all parts with full part numbers in Heavy Parts AI →
6w4855 Lines Gp-Air Conditioner-Part 2 Of 3
6W***55Lines Group-Air Conditioner; Air Conditioner Lines Group1
See all parts with full part numbers in Heavy Parts AI →
3v6681 Heater Lines Group
9v1977 Vandalism Lock Group
9v2453 Mirror Group-Lh
8v1169 Mirror Group-Rear View
8v5050 Mirror Group-Rh
8v6928 Cab Mounting Group
9v2672 Panel Gp-Instrument-Part 1 Of 2
9v2672 Panel Gp-Instrument-Part 2 Of 2
9v2671 Panel Gp-Instrument
6v6561 Shaft Pivot Gp
6V***61Pivot Group-Wiper Arm; (Wiper Arm)1
See all parts with full part numbers in Heavy Parts AI →
6w1605 Roading Arrangement-German-With Sound Suppression-Spectator
1W***45Radiator Group; Radiator Gp-Folded Core1
2W***76Suppression Ar-Sound; Suppression Ar-Sound-Engine1
4V***27Guard Group-Power Train; Power Train Guard Group1
See all parts with full part numbers in Heavy Parts AI →
8v9935 Roading Ar-German Market
6C***51Handle As-Grab2
6C***31Plate2
7V***66Steering Ar-Secondary; Steering Ar-Supplemental1
See all parts with full part numbers in Heavy Parts AI →
6w1949 Roading Ar-Suppression & Air Conditioning
2W***76Suppression Ar-Sound; Suppression Ar-Sound-Engine1
4V***27Guard Group-Power Train; Power Train Guard Group1
4V***32Guard Group-Bottom; Guard Gp-Bottom-Sound Suppression1
See all parts with full part numbers in Heavy Parts AI →
9v5345 Roading Ar-German Market
6W***38Lighting Group-Roading; Lighting Group-Roading1
8V***20Speedometer Group1
9V***45Roading Ar1
See all parts with full part numbers in Heavy Parts AI →
6c0032 Rops Gp-Enclosed-Part 1 Of 5
6c0032 Rops Gp-Enclosed-Part 5 Of 5
6c0032 Rops Gp-Enclosed-Part 4 Of 5
6c1239 Rops Gp-Enclosed-Part 1 Of 2
8v1188 Rops Gp-Enclosed-Part 2 Of 2
6c0032 Rops Gp-Enclosed-Part 3 Of 5
6c0032 Rops Gp-Enclosed-Part 2 Of 5
6c1239 Rops Gp-Enclosed-Part 2 Of 2
8v6917 Rops Group--Open
8v1188 Rops Gp-Enclosed-Part 1 Of 2
8v1176 Seat Group-Adjustable Static
8v8024 Seat Gp-Adjustable (Suspension)-Type 2
8v8024 Seat Gp-Adjustable (Suspension)-Type 1
8v1175 Adjustable Seat Group
3v8252 Seat Group-Suspension
3V***52Seat Group-Suspension; Suspension Seat Group1
See all parts with full part numbers in Heavy Parts AI →
8v5220 Speedometer Group
8v1181 Seat Support Group
8v9944 Suppression Ar-French Market-Type 1
1W***45Radiator Group; Radiator Gp-Folded Core1
2W***76Suppression Ar-Sound; Suppression Ar-Sound-Engine1
4V***27Guard Group-Power Train; Power Train Guard Group1
See all parts with full part numbers in Heavy Parts AI →
8v9944 Suppression Ar-French Market-Type 2
1W***45Radiator Group; Radiator Gp-Folded Core1
2W***76Suppression Ar-Sound; Suppression Ar-Sound-Engine1
4V***27Guard Group-Power Train; Power Train Guard Group1
See all parts with full part numbers in Heavy Parts AI →
6w5234 Suppression Ar-Sound-Part 2 Of 2
6w5234 Suppression Ar-Sound-Part 1 Of 2
6w1950 Conditioner & Suppression Ar-Type 2
2W***76Suppression Ar-Sound; Suppression Ar-Sound-Engine1
4V***27Guard Group-Power Train; Power Train Guard Group1
4V***34Guard Group-Crankcase; Crankcase Guard Group1
See all parts with full part numbers in Heavy Parts AI →
6w1950 Conditioner & Suppression Ar-Type 1
2W***76Suppression Ar-Sound; Suppression Ar-Sound-Engine1
4V***27Guard Group-Power Train; Power Train Guard Group1
4V***32Guard Group-Bottom; Guard Gp-Bottom-Sound Suppression1
See all parts with full part numbers in Heavy Parts AI →
8v8840 Sound Suppression Gp-Vehicle Parts-Part 2 Of 4-Type 1
8V***40Suppression Group-Sound; Suppression Gp-Sound-Vehicle Parts1
See all parts with full part numbers in Heavy Parts AI →
6w1606 Sound Suppression Gp-Vehicle Parts-Part 3 Of 4-Type 2
6W***06Suppression Group-Sound; Suppression Ar-Sound-Vehicle1
See all parts with full part numbers in Heavy Parts AI →
6w1606 Sound Suppression Gp-Vehicle Parts-Part 1 Of 4-Type 2
6W***06Suppression Group-Sound; Suppression Ar-Sound-Vehicle1
See all parts with full part numbers in Heavy Parts AI →
8v8840 Suppression Gp-Sound-Vehicle Parts-Part 3 Of 4-Type 2
8V***40Suppression Group-Sound; Suppression Gp-Sound-Vehicle Parts1
See all parts with full part numbers in Heavy Parts AI →
8v8840 Suppression Gp-Sound-Vehicle Parts-Part 1 Of 4-Type 2
8V***40Suppression Group-Sound; Suppression Gp-Sound-Vehicle Parts1
See all parts with full part numbers in Heavy Parts AI →
6w1606 Sound Suppression Gp-Vehicle Parts-Part 3 Of 4-Type 1
6W***06Suppression Group-Sound; Suppression Ar-Sound-Vehicle1
See all parts with full part numbers in Heavy Parts AI →
6w1606 Sound Suppression Gp-Vehicle Parts-Part 4 Of 4-Type 1
6W***06Suppression Group-Sound; Suppression Ar-Sound-Vehicle1
See all parts with full part numbers in Heavy Parts AI →
6w1606 Sound Suppression Gp-Vehicle Parts-Part 4 Of 4-Type 2
6W***06Suppression Group-Sound; Suppression Ar-Sound-Vehicle1
See all parts with full part numbers in Heavy Parts AI →
8v8840 Suppression Gp-Sound-Vehicle Parts-Part 4 Of 4-Type 2
8V***40Suppression Group-Sound; Suppression Gp-Sound-Vehicle Parts1
See all parts with full part numbers in Heavy Parts AI →
8v8840 Sound Suppression Gp-Vehicle Parts-Part 4 Of 4-Type 1
8V***40Suppression Group-Sound; Suppression Gp-Sound-Vehicle Parts1
See all parts with full part numbers in Heavy Parts AI →
6w1606 Sound Suppression Gp-Vehicle Parts-Part 1 Of 4-Type 1
6W***06Suppression Group-Sound; Suppression Ar-Sound-Vehicle1
See all parts with full part numbers in Heavy Parts AI →
6w1606 Sound Suppression Gp-Vehicle Parts-Part 2 Of 4-Type 2
6W***06Suppression Group-Sound; Suppression Ar-Sound-Vehicle1
See all parts with full part numbers in Heavy Parts AI →
8v8840 Sound Suppression Gp-Vehicle Parts-Part 1 Of 4-Type 1
8V***40Suppression Group-Sound; Suppression Gp-Sound-Vehicle Parts1
See all parts with full part numbers in Heavy Parts AI →
8v8840 Sound Suppression Gp-Vehicle Parts-Part 3 Of 4-Type 1
8V***40Suppression Group-Sound; Suppression Gp-Sound-Vehicle Parts1
See all parts with full part numbers in Heavy Parts AI →
6w1606 Sound Suppression Gp-Vehicle Parts-Part 2 Of 4-Type 1
6W***06Suppression Group-Sound; Suppression Ar-Sound-Vehicle1
See all parts with full part numbers in Heavy Parts AI →
8v8840 Suppression Gp-Sound-Vehicle Parts-Part 2 Of 4-Type 2
8V***40Suppression Group-Sound; Suppression Gp-Sound-Vehicle Parts1
See all parts with full part numbers in Heavy Parts AI →
5v4861 Seat Group-Suspension-Part 2 Of 2
5v4861 Seat Group-Suspension-Part 1 Of 2
7n8000 Switch Assembly-Toggle
7N***00Switch As-Toggle; (Warning Light)1
See all parts with full part numbers in Heavy Parts AI →
7n8001 Toggle Switch Assembly
7N***01Switch As-Toggle; -Prelubrication Override-Crank Override1
See all parts with full part numbers in Heavy Parts AI →
9g7641 Start Switch Group
9G***41Switch Group-Start; -Engine, Key-Vims Service1
See all parts with full part numbers in Heavy Parts AI →
9v9848 Cab Visor Group
9v9849 Cab Visor Group
8v1189 Washer & Wiper Gp
6w7332 Washer & Wiper Gp
6w7333 Washer & Wiper Gp-Rear
8v1161 Washer & Wiper Gp-Rear
7x1983 Wiper Gp
7X***83Wiper Group; Wiper Group (Nippondenso)1
See all parts with full part numbers in Heavy Parts AI →
7x1982 Wiper Gp
7X***82Wiper Group; Wiper Group (Robert Bosch)1
See all parts with full part numbers in Heavy Parts AI →
3t7064 Wiper Gp-Sensor
3T***64Wiper Group-Sensor1
7X***82Wiper Group; Wiper Group (Robert Bosch)1
7X***83Wiper Group; Wiper Group (Nippondenso)1
See all parts with full part numbers in Heavy Parts AI →
8v1182 Wiring Gp-Cab
Chassis
4v7930 Axle Group-Fixed
4v7931 Axle Group-Oscillating
4V***31Axle Group-Oscillating; Ossillating Axle Group1
See all parts with full part numbers in Heavy Parts AI →
6c0523 Counterweight Group
8v1075 Fender Group
4v8911 Firewall Group
9v3093 Front Frame Group
4v8899 Frame Gp-Rear
4v9532 Sound Suppression Bottom Guard Group
4V***32Guard Group-Bottom; Guard Gp-Bottom-Sound Suppression1
See all parts with full part numbers in Heavy Parts AI →
4v9534 Guard Gp-Crankcase
4V***34Guard Group-Crankcase; Crankcase Guard Group1
See all parts with full part numbers in Heavy Parts AI →
9v3095 Front Guard Group
4v9527 Power Train Guard Group
4V***27Guard Group-Power Train; Power Train Guard Group1
See all parts with full part numbers in Heavy Parts AI →
3v6321 Guard Gp-Powertrain
3V***21Guard Group-Power Train; Guard Gp-Powertrain Guard1
See all parts with full part numbers in Heavy Parts AI →
3v6282 Radiator Guard Group-Part 2 Of 2
3v6282 Radiator Guard Group-Part 1 Of 2
4v8915 Articulated Hitch Group
7v3662 Hood & Guard Group-Part 1 Of 2
7v3662 Hood & Guard Gp-Part 2 Of 2
4v8910 Ladder Group
7v3656 Steering Lock Link Group
8v6916 Platform Gp-Type 1
8v6916 Platform Gp
7v8294 Rim Gp-Demountable-4 Required
4v7928 Demountable Rim Group-4 Required-17.5 X 25 Tubeless Tires
9v8184 Seat Gp
9c4449 Seat Gp-Adjustable
6w8914 Seat Gp-Adjustable
9v7924 Suspension Gp-Seat-Part 1 Of 2
9v7924 Suspension Gp-Seat-Part 2 Of 2
Cooling System
1w8094 Engine Oil Cooler Group
1W***94Cooler Group-Engine Oil; Engine Oil Cooler Group1
See all parts with full part numbers in Heavy Parts AI →
9n5659 Engine Oil Cooler Group
7n7072 Blower Fan Group
3v6298 Torque Converter Cooler Lines Group
4n0188 Water Lines Group
4N***88Lines Group-Water; Water Lines Group1
See all parts with full part numbers in Heavy Parts AI →
4n0660 Pump Gp-Water
4N***60Pump Group-Water; Water Pump Group1
See all parts with full part numbers in Heavy Parts AI →
1w9440 Radiator Group-Part 2 Of 2
1w9441 Radiator Group-Folded Core
1w9445 Radiator Group-Folded Core
1W***45Radiator Group; Radiator Gp-Folded Core1
See all parts with full part numbers in Heavy Parts AI →
1w9447 Radiator Group-Folded Core
1w9443 Radiator Group-Folded Core
1w9440 Radiator Group-Part 1 Of 2
Engine Arrangement
8n3165 Engine Arrangement-Part 2 Of 2
1W***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
1W***91Lines Group-Air Compressor; Air Compressor Lines Group1
1W***24Air Compressor Group; Air Compressor Group1
See all parts with full part numbers in Heavy Parts AI →
8n3165 Engine Arrangement-Part 1 Of 2
1W***52Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
1W***53Housing Group-Front; Front Housing Group1
1W***55Gear Group-Front; Front Gear Group1
See all parts with full part numbers in Heavy Parts AI →
Fuel System And Governor
4w4938 Pump Gp-Governor & Fuel Injection-Type 2
4W***38Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group1
See all parts with full part numbers in Heavy Parts AI →
4w4938 Pump Gp-Governor & Fuel Injection-Type 1
4W***38Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group1
See all parts with full part numbers in Heavy Parts AI →
2w6559 Governor Gp-Part 2 Of 3
2w4107 Governor Group-Part 2 Of 2
2w6559 Governor Gp-Part 1 Of 2
7w1488 Governor Gp-Part 1 Of 3
2w4107 Governor Group-Part 1 Of 2
2w6559 Governor Gp-Part 1 Of 3
7w1488 Governor Gp-Part 2 Of 3
2w6559 Governor Gp-Part 2 Of 2
2w6559 Governor Gp-Part 3 Of 3
6w1561 Controls Installation Group-Part 1 Of 2
6w1561 Controls Installation Group-Part 2 Of 2
1w5867 Lines Gp-Fuel Filter
1W***67Lines & Fuel Filter Group; Fuel Filter And Lines Group1
See all parts with full part numbers in Heavy Parts AI →
8v3586 Lines Gp-Fuel
1w1354 Lines Gp-Fuel Injection
1W***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
See all parts with full part numbers in Heavy Parts AI →
7n0042 Fuel Injection Lines Group
8v1179 Governor Pedal Group
8V***79Pedal Group-Governor; Governor Pedal Group1
See all parts with full part numbers in Heavy Parts AI →
1w6539 Pump Gp-Fuel Injection
4w0469 Fuel Injection Pump Group
8n5251 Fuel Priming Pump & Primary Filter Group
8N***51Pump Group-Fuel Prime & Prim Filter1
See all parts with full part numbers in Heavy Parts AI →
1w8874 Fuel Priming Pump & Primary Filter Group
1W***74Pump Group-Fuel Prime & Prim Filter; Fuel Priming Pump And Primary Filter Group1
See all parts with full part numbers in Heavy Parts AI →
8n3365 Fuel Priming Pump Group
8N***65Pump Group-Fuel Priming; Priming Pump-Fuel & Primary Filter1
See all parts with full part numbers in Heavy Parts AI →
1w0568 Fuel Transfer Pump Group
2w4403 Fuel Transfer Pump Group
2W***03Pump Group-Fuel Transfer; Fuel Transfer Pump Group1
See all parts with full part numbers in Heavy Parts AI →
6c0854 Fuel Tank Group-120 Liters (31.7 Gallons)
4w5063 Torque Control Gp
Hydraulic System
3g2196 Cartridge Gp-Front-72 L/Min (19 Gpm)*R
4t3196 Cartridge Gp-Rear*R
4t7286 Valve Gp-Tilt Control & Relief
4t7289 Check And Relief Valve Group-Auxiliary Circuit
6w3359 Mechanical Hydraulic Control Group-3rd Valve-Lever Lock
9v3094 Control Gp-Implement-Part 1 Of 2
9t3094 Control Gp-Implement-Part 2 Of 2
9v3094 Control Gp-Implement-Part 2 Of 2
9v6740 Control Gp-Mechanical Hydraulic-Part 2 Of 2
9V***40Control Group-Mechanical Hydraulic1
See all parts with full part numbers in Heavy Parts AI →
9v6740 Control Gp-Mechanical Hydraulic-Part 1 Of 2
9V***40Control Group-Mechanical Hydraulic1
See all parts with full part numbers in Heavy Parts AI →
9v7087 Cooler Ar-Hydraulic Oil
2W***01Hydraulic Oil Core Assembly1
9V***09Lines Group-Oil Cooler1
9V***87Cooler Ar-Hydraulic Oil1
See all parts with full part numbers in Heavy Parts AI →
9v8921 Mounting & Cylinder Gp
9v0948 Cylinder & Mounting Gp-Quick Coupler
4v8904 Mounting And Cylinder Group-Steering
9v3097 Seal & Tilt Cylinder Group
4T***66Cylinder Group; Tilt Cylinder Group1
7K***03Seal-Lip Facing Away From Bearing2
8V***84Cylinder & Seal Group1
See all parts with full part numbers in Heavy Parts AI →
9v7983 Seal & Lift Cylinder Group-2 Required
4T***48Cylinder Group; Lift Cylinder Group1
7K***03Seal-Lip Facing Away From Bearing2
9V***83Cylinder & Seal Group1
See all parts with full part numbers in Heavy Parts AI →
4v8905 Seal & Cylinder Group-Steering
1U***22Cylinder Group-Steering1
4V***05Cylinder & Seal Group-Steering1
7K***01Seal--Lip Facing Away From Bearing4
See all parts with full part numbers in Heavy Parts AI →
4t4666 Tilt Cylinder Group
4T***66Cylinder Group; Tilt Cylinder Group1
See all parts with full part numbers in Heavy Parts AI →
4t8648 Cylinder Gp-R.H. & L.H.
4T***48Cylinder Group; Lift Cylinder Group1
See all parts with full part numbers in Heavy Parts AI →
4t5544 Quick Coupler Cylinder Group
4t8648 Lift Cylinder Group-R.H & L.H.
4T***48Cylinder Group; Lift Cylinder Group1
See all parts with full part numbers in Heavy Parts AI →
4t9981 Coupler Cylinder Group
9t2352 Cylinder Gp
1u3322 Steering Cylinder Group-(Chg N01)
9v3103 Kickout Gp-Positioner
4t2061 Lever Gp
4t2061 Lift Control Lever Group
9c1586 Lines Gp-Check Valve-Part 2 Of 2-Type 1
6W***76Tube As1
6W***12Harness As1
7D***22Nut-Self Locking; (Elastic Stop)2
See all parts with full part numbers in Heavy Parts AI →
9c1586 Lines Gp-Check Valve-Part 1 Of 2-Type 2
00***21Tee-Union1
03***45Connector1
03***57Tee-Flared1
See all parts with full part numbers in Heavy Parts AI →
9c1586 Lines Gp-Check Valve-Part 2 Of 2-Type 2
6W***76Tube As1
6W***12Harness As1
7D***22Nut-Self Locking; (Elastic Stop)2
See all parts with full part numbers in Heavy Parts AI →
9c1586 Lines Gp-Check Valve-Part 1 Of 2-Type 1
00***21Tee-Union1
03***45Connector1
03***57Tee-Flared1
See all parts with full part numbers in Heavy Parts AI →
9v8946 Coupler Lines Group-Part 2 Of 2
9v3104 Coupler Lines Group
6w6846 Lines Gp-Coupler
9v8946 Coupler Lines Group-Part 1 Of 2
9v8943 Lines Gp-Front-Part 3 Of 3
9v3111 Lines Gp-Front-Part 2 Of 3
6w9722 Lines Gp-Front
9v8942 Lines Gp-Front-Third Valve-Part 2 Of 2
9v3111 Lines Gp-Front-Part 1 Of 3
9v8942 Lines Gp-Front-Third Valve-Part 1 Of 2
9v3111 Lines Gp-Front-Part 3 Of 3
9v8943 Lines Gp-Front-Part 2 Of 3
9v8942 Lines Gp-Front-Third Valve Part 2 Of 2
9v8943 Lines Gp-Front-Part 1 Of 3
6w5741 Lines Gp-Hydraulic Oil-Part 2 Of 2
6w5741 Lines Gp-Hydraulic Oil-Part 1 Of 2
9v3099 Lines Gp-Lift Cylinder-Part 2 Of 2
9v3099 Lines Gp-Lift Cylinder-Part 1 Of 2
9v3099 Lift Cylinder Lines Group-Part 1 Of 2
9v3109 Lines Gp-Oil Cooler-Part 1 Of 2
9v3109 Lines Gp-Oil Cooler-Part 2 Of 2
9v3098 Tilt Cylinder Lines Group-Part 3 Of 3
9v3098 Tilt Cylinder Lines Group-Part 2 Of 3
9v3098 Tilt Cylinder Lines Group-Part 1 Of 3
8v1156 Hydraulic Hand Control Lock Group-3 Lever
8V***56Lock Group-Hydraulic Hand Control; Hydraulic Hand Control Lock Group1
See all parts with full part numbers in Heavy Parts AI →
8v4502 Mounting Gp-Hydraulic Tank
9t1760 Pump Gp-Vane
6w4816 Pump Gp-Vane-Implement & Steering
4t0489 Filter And Tank Group-Part 1 Of 2
4t0489 Filter And Tank Group-Part 2 Of 2
9v3096 Implement Control Valve And Mounting Group
9t4240 Valve Gp
4t7291 Valve Gp-Inlet Flow Control & Relief
4t6067 Valve Gp-Tilt Control & Relief
9t5312 Valve Gp
9t0159 Basic Tilt Control Valve
9t5311 Valve Gp
9t4746 Valve Gp
9t5305 Valve Gp
4t2066 Valve Group-Flow Control
4t7287 Implement Control Valve Group
9t3094 Valve Gp
4t5896 Valve Gp-Check
4T***96Valve Group-Check; -Pressure Reducing1
See all parts with full part numbers in Heavy Parts AI →
4t2064 Valve Gp-Check
4t7285 Tilt Control Valve Group
9t1029 Valve Gp-Auxiliary Circuit Control
9t5319 Valve Gp-Control
9t1029 Auxiliary Circuit Control Valve Group
9t6972 Valve Gp-Control
9t5322 Valve Gp-Control
9t0160 Valve Gp-Lift Control
9t4241 Valve Gp-Control
4t5541 Valve Gp-Diverter
4t7516 Valve Gp-Relief
4t7290 Valve Gp-Relief-Pilot Operated
4t1008 Valve Gp-Relief
4T***08Valve Group-Relief; -Inlet Manifold-Charging1
See all parts with full part numbers in Heavy Parts AI →
4t1860 Valve Gp-Shuttle
4T***60Valve Group-Shuttle; -Ripper Lift-Ripper Tilt-Blade Tilt-Blade Lift1
See all parts with full part numbers in Heavy Parts AI →
6t5859 Valve Gp-Solenoid
6T***59Valve Group-Solenoid; (Ride Control)1
See all parts with full part numbers in Heavy Parts AI →
Implements
9v1795 Arm Gp
3g4428 Bit & Cutting Edge Group
9v8957 General Purpose Bucket Assembly-Flush Mounted Teeth
9V***57Bucket As-General Purpose; General Purpose Bucket Assembly1
See all parts with full part numbers in Heavy Parts AI →
9v8959 General Purpose Bucket Assembly
9v8956 General Purpose Bucket Assembly
9V***56Bucket As-General Purpose; General Purpose Bucket Assembly1
See all parts with full part numbers in Heavy Parts AI →
9v8958 General Purpose Bucket Assembly
9v8955 General Purpose Bucket Assembly-1.7 Cu M (2.25 Cu.Yd.)Capacity
9v8961 General Purpose Bucket Assembly-Flush Mounted Teeth
9v8960 General Purpose Bucket Assembly-Flush Mounted Teeth
6w3061 General Purpose Bucket Group
6W***61Bucket Group-General Purpose1
9J***69Tip Group-Long; -J-2508
9V***57Bucket As-General Purpose; General Purpose Bucket Assembly1
See all parts with full part numbers in Heavy Parts AI →
6w3062 General Purpose Bucket Group
6W***62Bucket Group-General Purpose1
9J***69Tip Group-Long; -J-2508
9V***60Bucket As-General Purpose1
See all parts with full part numbers in Heavy Parts AI →
6w3060 General Purpose Bucket Group
6W***60Bucket Group-General Purpose1
9J***69Tip Group-Long; -J-2508
9V***56Bucket As-General Purpose; General Purpose Bucket Assembly1
See all parts with full part numbers in Heavy Parts AI →
6w3063 General Purpose Bucket Group
6W***63Bucket Group-General Purpose1
9J***69Tip Group-Long; -J-2508
9V***61Bucket As-General Purpose1
See all parts with full part numbers in Heavy Parts AI →
9v9083 Carriage As-Fork
9v9076 Carriage As-Fork
9v8944 Coupler Ar-Wide Range
1V***42Bearing-Sleeve2
4V***29Bearing-Sleeve2
5C***85Plate (L. H.)1
See all parts with full part numbers in Heavy Parts AI →
6w9724 Coupler Ar-Frame-Type 1
1V***42Bearing-Sleeve2
4V***29Bearing-Sleeve2
6C***84Block4
See all parts with full part numbers in Heavy Parts AI →
6w9724 Coupler Ar-Frame-Type 2
6W***48Quick Coupler Group1
6W***22Lines Group-Front1
6W***24Coupler Ar-Wide Frame1
See all parts with full part numbers in Heavy Parts AI →
Pallet Forks
09***49Fork Group; Fork Group - Pallet0
09***87Fork Group; Fork Group - Pallet0
09***88Fork Group; Fork Group - Pallet0
See all parts with full part numbers in Heavy Parts AI →
9v8920 Quick Coupler Group
6w9648 Coupler Gp-Quick
8v9683 Quick Coupler Group-European Market
8V***83Quick Coupler Group; Coupler Gp-Quick1
See all parts with full part numbers in Heavy Parts AI →
9j3169 Tip Group-Long
3g4017 Tooth Group-Long
1u2424 Uni-Tooth Group
Lubrication System
1w7298 Breather Group
1W***98Breather Group; Breather Gp-Crankcase1
See all parts with full part numbers in Heavy Parts AI →
7n6496 Oil Filler Group
8n5930 Oil Filter Group
8N***30Filter Group-Engine Oil; Engine Oil Filter Group1
See all parts with full part numbers in Heavy Parts AI →
7n6497 Fumes Disposal Gp
7n6498 Oil Level Gauge Group
7N***98Gauge Group-Oil Level (Dipstick)1
See all parts with full part numbers in Heavy Parts AI →
2w2833 Pump Gp-Engine Oil
2W***33Pump Group-Engine Oil; Engine Oil Pump Group1
See all parts with full part numbers in Heavy Parts AI →
Power Train-Power Transmission Unit
5v5300 Brake Gp-Service
8v6913 Control Gp-Transmission
7g7620 Transmission Hydraulic Control Group
7G***20Control Group-Transmission Hydraulic; Transmission Hydraulic Control Group1
See all parts with full part numbers in Heavy Parts AI →
7v2179 Differential And Bevel Gear Group-Front
7V***79Differential & Bevel Gear Group1
See all parts with full part numbers in Heavy Parts AI →
7v2178 Differential & Bevel Gear Gp-Rear
7V***78Differential & Bevel Gear Group; Differential And Bevel Gear Group1
See all parts with full part numbers in Heavy Parts AI →
4v0026 Differential Group-For Use On Rear Axle Only
0L***43Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender8
4V***26Differential Group1
5M***94Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler8
See all parts with full part numbers in Heavy Parts AI →
7v2183 Differential Group
9p9523 Drive Gp-Pump
9P***23Drive Group-Pump; Pump Drive Group1
See all parts with full part numbers in Heavy Parts AI →
4v9522 Power Train Oil Filler Group
4v9521 Filter & Lines Group
4V***21Filter & Lines Group-Transmission1
See all parts with full part numbers in Heavy Parts AI →
9p1509 Transmission Filter Group
9P***09Filter Group-Transmission; (Trans.)1
See all parts with full part numbers in Heavy Parts AI →
7g3033 Transfer Gear Group-Part 1 Of 2
7G***33Gear Group-Transfer; Transfer Gear Group1
See all parts with full part numbers in Heavy Parts AI →
7g3033 Transfer Gear Group-Part 2 Of 2
7G***33Gear Group-Transfer; Transfer Gear Group1
See all parts with full part numbers in Heavy Parts AI →
7g3056 Power Train Oil Lines Group
8p9856 Parts And Case Group
8P***56Parts & Case Group-Transmission1
See all parts with full part numbers in Heavy Parts AI →
7g3031 Planetary Gp-Part 4 Of 4
7G***31Planetary Group; Planetary Group1
See all parts with full part numbers in Heavy Parts AI →
7g3031 Planetary Gp-Part 2 Of 4
7G***31Planetary Group; Planetary Group1
See all parts with full part numbers in Heavy Parts AI →
7g3031 Planetary Gp-Part 1 Of 4
7G***31Planetary Group; Planetary Group1
See all parts with full part numbers in Heavy Parts AI →
7g3031 Planetary Gp-Part 3 Of 4
7G***31Planetary Group; Planetary Group1
See all parts with full part numbers in Heavy Parts AI →
7g3200 Gear Pump Group
7G***00Pump Group-Gear; (Transmission)1
See all parts with full part numbers in Heavy Parts AI →
4v9520 Drive Shaft Group
8v6948 Drive Shaft Group
5v3736 Slip Joint Group--Dana Corp
5V***36Slip Joint Group; Slip Joint Group-- Dana Corporation1
See all parts with full part numbers in Heavy Parts AI →
8v6954 Slip Joint Group--Rockwell International
8V***54Slip Joint Group; Slip Joint Group-- Rockwell International1
See all parts with full part numbers in Heavy Parts AI →
8v6953 Slip Joint Group
5V***36Slip Joint Group; Slip Joint Group-- Dana Corporation1
8V***53Slip Joint Group1
8V***54Slip Joint Group; Slip Joint Group-- Rockwell International1
See all parts with full part numbers in Heavy Parts AI →
1t1449 Torque Converter Group
1T***49Torque Converter Group; Torque Converter Group1
See all parts with full part numbers in Heavy Parts AI →
7g3030 Transmission Arrangement
1T***49Torque Converter Group; Torque Converter Group1
7G***30Transmission Ar1
7G***31Planetary Group; Planetary Group1
See all parts with full part numbers in Heavy Parts AI →
8v6950 Universal Joint Group--Rockwell International
8V***50Universal Joint Group; Universal Joint Group --Rockwell International1
See all parts with full part numbers in Heavy Parts AI →
8v6952 Universal Joint Group--Rockwell International
8V***52Universal Joint Group; Universal Joint Group-- Rockwell International1
See all parts with full part numbers in Heavy Parts AI →
5v3734 Universal Joint Group--Dana Corp
5V***34Universal Joint Group; Universal Joint Group-- Dana Corporation1
See all parts with full part numbers in Heavy Parts AI →
5v3732 Universal Joint Group--Dana Corp
5V***32Universal Joint Group; Universal Joint Group-- Dana Corporation1
See all parts with full part numbers in Heavy Parts AI →
8v6951 Universal Joint Group
5V***32Universal Joint Group; Universal Joint Group-- Dana Corporation1
8V***51Universal Joint Group1
8V***52Universal Joint Group; Universal Joint Group-- Rockwell International1
See all parts with full part numbers in Heavy Parts AI →
8v6949 Universal Joint Group
5V***34Universal Joint Group; Universal Joint Group-- Dana Corporation1
8V***49Universal Joint Group1
8V***50Universal Joint Group; Universal Joint Group --Rockwell International1
See all parts with full part numbers in Heavy Parts AI →
9v8926 Lines & Valve Gp-Neutral Disconnect
9v8926 Lines & Valve Gp-Neutralizer Disconnect
4d3278 Valve Gp-Air Control
4D***78Valve Group-Air Control; -Parking Brake Switch1
See all parts with full part numbers in Heavy Parts AI →
9p9635 Valve Group-Control-Selector & Pressure
9G***35Valve Group-Control-Selector & Pressure1
See all parts with full part numbers in Heavy Parts AI →
8p3040 Neutralizer Valve Group
8p9854 Relief Valve Group-Torque Converter Charging
8P***54Valve Group-Relief; Relief Valve Group1
See all parts with full part numbers in Heavy Parts AI →
7g7621 Valve Group-Neutralizer & Selector & Pressure
7G***21Valve Group-Selector & Press Cont1
See all parts with full part numbers in Heavy Parts AI →
8v6939 Wheel Gp-Final Drive & Wheel-4 Required
8V***39Wheel Group-Final Drive & Brake1
See all parts with full part numbers in Heavy Parts AI →
Service Equipment And Supplies
Gasket Kits
6V***01Turbocharger Mounting0
6V***96Rebuild Kit (Water Pump)0
6V***53Oil Cooler And Lines0
See all parts with full part numbers in Heavy Parts AI →
8f9866 Grease Gun Assembly
Name Plates And Films
1P***76Film-Cat On Side Of Operator Compartment2
3N***90Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine1
4B***58Screw (Identification Plate) Mounting28
See all parts with full part numbers in Heavy Parts AI →
9s7978 Hand Tool Group
Starting And Electrical System
6n2738 Alternator Gp
6t7223 Alternator Gp-24 Volt, 50 Ampere-Nippondenso
6T***23Alternator Group-Charging; Alternator Group-Nippondenso -- 24 Volt, 50 Ampere1
See all parts with full part numbers in Heavy Parts AI →
5s9088 Alternator Gp-24 Volt, 50 Ampere*R
3T***88Alternator Group-Charging; Alternator Group Delco-Remy 24 Volt, 50 Ampere1
5S***88Alternator Group-Charging1
6T***23Alternator Group-Charging; Alternator Group-Nippondenso -- 24 Volt, 50 Ampere1
See all parts with full part numbers in Heavy Parts AI →
3t1888 Alternator Group-Delco Remy-24 Volt,50 Amp
3T***88Alternator Group-Charging; Alternator Group Delco-Remy 24 Volt, 50 Ampere1
See all parts with full part numbers in Heavy Parts AI →
9g9538 Alternator Group-24 Volt, 50 Ampere
6w4811 Battery & Wiring Gp-Part 2 Of 3
6w4811 Battery & Wiring Gp-Part 1 Of 3
6w4811 Battery & Wiring Gp-Part 3 Of 3
8v7193 Battery Group
7t1390 Electronic Control Group-Relay
7T***90Control Group-Electronic; -Implement Kickout1
See all parts with full part numbers in Heavy Parts AI →
8v7967 Converter Gp-Wiring-Radio-12 Volt
5c6741 Lamp Assembly-24 Volt
6c0320 Lamp Gp-Flood
6n7989 Flood Lamp Group-24 Volt
6N***89Lamp Group-Flood; -Ladder Access1
See all parts with full part numbers in Heavy Parts AI →
8v1162 Lighting Gp-2 Lamp-Auxiliary Cab
8v7395 Lighting Gp-4 Lamp
8v1163 Lighting Gp-2 Lamp-Auxiliary-Canopy
8v1162 Lighting Group-2 Lamp--Cab
6w7071 Lighting Gp
6W***71Lighting Group-2 Lamp; Lighting Gp-Auxiliary Cab1
See all parts with full part numbers in Heavy Parts AI →
8v7136 Battery Mounting Group
3t3421 Solenoid As
3t4704 Solenoid As
7t8854 Solenoid As-Starting Motor
4v8913 Starting Aid Gp-Ether-Type 1
4v8913 Starting Aid Gp-Ether-Type 2
3t2764 Electric Starting Motor Group*R
3T***71Starting Motor Group-Electric; Electric Starting Motor Group1
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
3T***64Starting Motor Group-Electric1
See all parts with full part numbers in Heavy Parts AI →
3t2756 Starting Motor Gp-Electric-Part 1 Of 3
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
See all parts with full part numbers in Heavy Parts AI →
6n1678 Electric Starting Motor Group
3t2371 Electric Starting Motor Group
3T***71Starting Motor Group-Electric; Electric Starting Motor Group1
See all parts with full part numbers in Heavy Parts AI →
3t2756 Starting Motor Gp-Electric-Part 3 Of 3
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
See all parts with full part numbers in Heavy Parts AI →
3t2756 Starting Motor Gp-Electric-Part 2 Of 3
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
See all parts with full part numbers in Heavy Parts AI →
3t2756 Starting Motor Gp-Electric-24 Volt
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
See all parts with full part numbers in Heavy Parts AI →
7n0718 Disconnect Switch Assembly
7N***18Switch As-Disconnect; -Battery-Ground Level1
See all parts with full part numbers in Heavy Parts AI →
8v6969 Back-Up Warning Group
6w2924 Supplemental Steering Wiring Group-For German Market
6W***24Wiring Group; Wiring Gp-Supplemental Steering1
See all parts with full part numbers in Heavy Parts AI →
6w1146 Wiring Group-Detent Release
6w4234 Wiring Gp-Front-Part 2 Of 2
6w4234 Wiring Gp-Front-Part 1 Of 2
6w0289 Wiring Gp-Powertrain-Part 1 Of 2
6w0289 Wiring Gp-Powertrain-Part 2 Of 2
6w2518 Rear Wiring Group
9v8048 Wiring Group-Primary Supplemental Steering
9V***48Wiring Group-Secondary Steering; Supplemental Steering Wiring Group1
See all parts with full part numbers in Heavy Parts AI →
Steering And Braking System
7v0094 Air Dryer Group-Part 2 Of 2
7v0094 Air Dryer Gp-Part 2 Of 2
7v0094 Air Dryer Group-Part 1 Of 2
7v0094 Air Dryer Gp-Part 1 Of 2
4v4893 Brake Gp-Hydraulic Caliper Service
4V***93Brake Group-Hydraulic Caliper Service1
See all parts with full part numbers in Heavy Parts AI →
1v2699 Parking Brake Group-Bendix Corporation
1V***99Brake Group-Parking; Parking Brake Group1
See all parts with full part numbers in Heavy Parts AI →
6w5611 Parking Brake Group-Akebono Brake Industry Co,.Ltd
6W***11Brake Group-Parking; Parking Brake Group1
See all parts with full part numbers in Heavy Parts AI →
6w5610 Parking Brake Group
1V***99Brake Group-Parking; Parking Brake Group1
6W***10Brake Group-Parking1
6W***11Brake Group-Parking; Parking Brake Group1
See all parts with full part numbers in Heavy Parts AI →
4v9523 Parking Brake Group
9c0149 Column Gp-Adjustable Steering-Part 1 Of 2
9C***49Column Group-Adjustable Steering1
See all parts with full part numbers in Heavy Parts AI →
9c0149 Column Gp-Adjustable Steering-Part 2 Of 2
9C***49Column Group-Adjustable Steering1
See all parts with full part numbers in Heavy Parts AI →
7v3672 Secondary Brake Control Group-Part 2 Of 2
7V***72Control Group-Brake; Control Gp-Secondary Brake1
See all parts with full part numbers in Heavy Parts AI →
7v3672 Control Gp-Brake-Part 2 Of 2
7V***72Control Group-Brake; Control Gp-Secondary Brake1
See all parts with full part numbers in Heavy Parts AI →
7v3672 Secondary Brake Control Group-Part 1 Of 2
7V***72Control Group-Brake; Control Gp-Secondary Brake1
See all parts with full part numbers in Heavy Parts AI →
7v3672 Control Gp-Brake-Part 1 Of 2
7V***72Control Group-Brake; Control Gp-Secondary Brake1
See all parts with full part numbers in Heavy Parts AI →
8v1180 Control Gp-Brake
6w0468 Control Gp-Brake-Type 1
6W***68Control Group-Parking Brake; -Secondary1
See all parts with full part numbers in Heavy Parts AI →
6w0468 Control Gp-Brake-Type 2
6W***68Control Group-Parking Brake; -Secondary1
See all parts with full part numbers in Heavy Parts AI →
4v8902 Control Gp-Brake-4 Wheel-Part 2 Of 4
4v8902 Control Gp-Brake-4 Wheel-Part 1 Of 4
4v8902 Control Gp-Brake-4 Wheel-Part 3 Of 4
4v8902 Control Gp-Brake-4 Wheel-Part 4 Of 4
8v6914 Steering Control Group
6w4822 Control Gp-Steering
7v0430 Air/Hydraulic Cylinder Gp
7V***30Cylinder Group-Air Over Hydraulic1
See all parts with full part numbers in Heavy Parts AI →
4v9531 Lines Gp-Supplemental Steering
4V***31Lines Group-Secondary Steering; Supplemental Steering Lines Group1
See all parts with full part numbers in Heavy Parts AI →
8v9304 Steering Oil Lines Group-Part 1 Of 3
8v9304 Steering Oil Lines Group-Part 3 Of 3
8v9304 Steering Oil Lines Group-Part 2 Of 3
4v8901 Mounting And Pump Group
1u2102 Gear Pump Group-Supplemental Steering
4t6923 Pump Gp-Metering
7v3666 Supplemental Steering Arrangement-For German Market
4V***01Pump & Mtg Group-Steering1
4V***31Lines Group-Secondary Steering; Supplemental Steering Lines Group1
6W***24Wiring Group; Wiring Gp-Supplemental Steering1
See all parts with full part numbers in Heavy Parts AI →
4v9530 Supplemental Steering Arrangement
4V***01Pump & Mtg Group-Steering1
4V***30Steering Ar-Secondary1
4V***31Lines Group-Secondary Steering; Supplemental Steering Lines Group1
See all parts with full part numbers in Heavy Parts AI →
8v1183 Steering Column Gp-Adjustable-Part 2 Of 2
8V***83Steering Column Group-Adjustable1
See all parts with full part numbers in Heavy Parts AI →
6c1046 Steering Column Gp-Adjustable-Part 1 Of 2
6C***46Steering Column Group-Adjustable1
See all parts with full part numbers in Heavy Parts AI →
6c1046 Steering Column Gp-Adjustable-Part 2 Of 2
6C***46Steering Column Group-Adjustable1
See all parts with full part numbers in Heavy Parts AI →
8v1183 Steering Column Gp-Adjustable-Part 1 Of 2
8V***83Steering Column Group-Adjustable1
See all parts with full part numbers in Heavy Parts AI →
4d2287 Valve Assembly
4v4154 Brake Foot Control Valve Assembly
4V***54Valve As-Brake; -Parking, Service1
See all parts with full part numbers in Heavy Parts AI →
3k5586 Valve Assembly
9t0123 Valve Group-Flow Control And Relief
9t1244 Direct Operated Relief Steering Valve Group
4k9714 Double Check Valve Assembly
4K***14Valve Group-Check; -Brake Air Relay1
9V***76Valve Group-Check; Check Valve Group-Wagner Electric Corp1
9V***41Valve Group-Check; -Brake Air Relay1
See all parts with full part numbers in Heavy Parts AI →
9v1541 Check Valve Group-Bendix Corp
9V***41Valve Group-Check; -Brake Air Relay1
See all parts with full part numbers in Heavy Parts AI →
9v3732 Check Valve Group
9v0476 Check Valve Group-Wagner Electric Corp
9V***76Valve Group-Check; Check Valve Group-Wagner Electric Corp1
See all parts with full part numbers in Heavy Parts AI →
9t0124 Cushion Crossover Relief Steering Valve Group
9t1245 Flow Control Group

3204 serial number reference

On the 3204, the serial/PIN plate is riveted to the engine block, most commonly on the left side (opposite the fuel injection pump) or near the front lifting eye; if the machine's own PIN plate is used instead, check the frame near the operator platform or engine bay. Read the first three characters as the serial prefix (letters and/or numbers identifying the engine build series), followed by a numeric sequence number that identifies the individual unit within that series - the prefix, not the sequence number, is what ties the engine to a specific configuration or parts-book edition.

PrefixIdentifies
2TB3204 Industrial Engine (standalone power unit)
3PC3204 Industrial Engine (standalone power unit)
6DC3204 Industrial Engine (standalone power unit)
7EB3204 Industrial Engine (standalone power unit)
10X3204 Engine - Machine (OEM engine fitted in a Cat-branded machine)
1AK3204 Engine - Machine (OEM engine fitted in a Cat-branded machine)
45V3204 Engine - Machine (OEM engine fitted in a Cat-branded machine)
7YJ3204 Engine - Machine (OEM engine fitted in a Cat-branded machine)

Frequently asked questions

What engine does the Caterpillar 3204 machine use?

The 3204 Engine - Machine designation refers to the engine itself: a 4.4-liter (269 cu in) inline-four diesel with 108 x 127 mm bore and stroke and roughly 16.5:1 compression. It is available naturally aspirated or turbocharged (3204T), with precombustion-chamber or direct-injection fuel systems depending on build era, and is mechanically governed with no electronic control module.

What is the operating weight of the Caterpillar 3204?

The 3204 has no standalone operating weight; it is an engine, not a self-contained machine. Bare engine dry weight runs approximately 500 kg (1,102 lb), an approximate figure. Operating weight depends entirely on the host machine it powers, such as the D3 tractor, 931/941/943/951 track loaders, or 910/920 wheel loaders — check that specific machine's spec sheet for its weight.

What replaced the Caterpillar 3204?

No single successor engine is publicly documented under this exact designation. Within its own production run the 3204 evolved internally: precombustion-chamber fuel systems gave way to direct injection, and two-ring pistons gave way to three-ring designs, without a formal model change. For a confirmed replacement engine, check the specific host machine's later production years against its own documentation rather than assuming a direct one-to-one swap.

What 3204 owners discuss

What's the recognized weak point on the 3204 that mechanics keep an eye on?
The connecting rod little-end bushing is the widely recognized weak spot on the 3204 (shared with its 3208 sibling). Bushing failure is the usual root cause when one of these engines throws a rod through the block. Pull an oil sample and check the filter for metal particles at every service - bushing wear shows up there well before the engine lets go. Have your dealer verify rod bushing clearance at any teardown or major service.
How do turbocharged and naturally aspirated 3204s compare for durability?
Field consensus favors the naturally aspirated 3204, capped at roughly 75 hp, as the more durable configuration. The turbocharged variant, common in applications like track loaders and small dozers, works a small inline-4 block harder and sees more frequent rebuilds and a shorter service life than the NA version or a larger-displacement Cat engine. When valuing a used engine, weigh application and load history alongside hour meter reading, not hours alone.
Why do some 3204 pistons have two rings and others three?
Early naturally aspirated 3204/3208 blocks used a two-ring piston, a low-friction design meant to give throttle response closer to a gasoline engine. Once turbochargers were added to the lineup, blow-by exceeded what a two-ring piston could control, so Cat moved to a three-ring piston for turbo variants. Shops rebuilding early NA engines sometimes fit aftermarket three-ring pistons for better blow-by control - confirm piston-to-block and injection timing compatibility before doing this.
What causes black smoke and flat throttle response on 3204 DI engines?
Direct-injection 3204s draw the most complaints about black smoke under load paired with weak throttle response, almost always traced to the fuel system rather than the air side. Black smoke means unburned fuel - too much fuel or too little air; late injection timing tends to smoke white or gray instead and the engine sounds weak rather than rich. A frequent culprit is the fuel transfer pump: small check valves inside collect debris and cause inconsistent delivery pressure. As a working reference, transfer pump pressure should read near 345 kPa (50 psi) at low idle and around 324 kPa (47 psi) at high idle - readings well off that point to a sticking pump or bad check valve, not the injectors.
What typically causes overheating on a 3204, and does it lead to bigger problems?
Overheating on the 3204 traces back to water pump wear as often as to the radiator. A worn impeller or excess impeller-to-housing clearance - spec runs about 0.28-0.84 mm (0.011-0.033 in) - cuts coolant flow before the pump shows any outward sign of failure. A weeping shaft seal is the early tell: keep the pump weep hole clear and check it on a routine basis, since a plugged weep hole hides a failing seal until it's further gone. Repeated overheating events on this engine are linked to head gasket failure and ring damage, so any 3204 with a known overheating history needs a compression or leak-down check before it's trusted under load.
Are electrical or sensor faults a common complaint on the 3204?
Not really - this is a mechanically injected engine with no ECM, so wiring faults are rare by modern standards. Most 'won't start' complaints trace back to fuel delivery, low compression, or, on glow-plug-equipped early 3204s, worn glow plugs. Field advice is to replace glow plugs as a full set rather than trust one that glows warm on a bench test, since a weak plug can look fine under light load and still fail to bring the chamber up to temperature in cold weather. Safety note: never spray ether or starting fluid into an engine fitted with glow plugs - the volatile fluid contacting a glowing element can trigger an intake explosion or fire, a failure mode reported more than once by owners. Have your dealer verify your engine's start-aid configuration (glow plug vs. ether-only) before using any starting aid.
What should you check before buying a used 3204?
Pull an oil sample and inspect the filter for metal - bushing and bearing wear shows there before it shows in performance. Run a compression or leak-down test across all cylinders; low compression or heavy blow-by points to worn pistons, rings, or liners. Watch smoke color under load: black points to a fuel system fault, blue or white paired with a history of overheating points to head gasket or ring damage. Inspect the crankshaft for cracks, a known failure point on these engines - a cracked crank can mean line boring, not just a swap. Ask for the engine's history and application: a turbocharged 3204 pulled from a loader or dozer has seen harder duty than a naturally aspirated industrial unit, and rebuild frequency reflects that. Have your dealer verify crankshaft and block condition with a proper inspection before final purchase.

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

Serial-range & configuration variants

This page covers the Caterpillar 3204. Related factory variants of the same model family:

3204

Need a specific 3204 part?

Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.