Caterpillar IT28
Caterpillarintegrated toolcarrier(no series)

Caterpillar IT28

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar IT28 is an integrated toolcarrier built on wheel-loader running gear, produced from 1985 with the naturally aspirated Cat 3204 mechanical diesel (4-cylinder, 4.4 liter, mechanical fuel injection, no electronic controls). Operating weight for the base machine runs around 9,560 kg (21,076 lb), though this varies with tires, counterweight, and the work tool fitted. Where a standard wheel loader uses a Z-bar linkage, the IT28 uses a parallel-lift loader arm, the same geometry later carried across the IT-series and shared in concept with the Cat 928 wheel loader, paired with an integrated quick coupler so one carrier accepts buckets, forks, and a material-handling arm without swapping linkages. The base IT28 opened a four-generation lineage: IT28 (1985, 3204 naturally aspirated) gave way to the IT28B (turbocharged 3204), then the IT28F (3116 turbo diesel), then the IT28G (electronically controlled 3056E).

Each later generation added power and control sophistication rather than changing the basic parallel-lift concept: the IT28B added a turbocharger to the same 3204 block, the IT28F moved to the six-cylinder 3116 turbo diesel, and the IT28G introduced full electronic engine management with a torque-rise bump and a redesigned operator station. In the used and parts market, the base IT28 sits at the start of that ladder: a purely mechanical machine with no ECM and no electronic fault codes, and a driveline that shares heritage and wear parts with the wheel loader family of its era. That makes it a low-cost, easy-to-diagnose machine for owners doing their own wrenching, and a steady source of linkage, coupler, and 3204 engine parts for shops supporting the wider IT28 platform.

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 IT28 specifications

Engine

Series identityThis is the original IT28 Integrated Toolcarrier, built ahead of the later IT28B, IT28F and IT28G updates. Machines in this range carry serial numbers in the 2KC prefix block. Specs, weights and dimensions differ from the B/F/G-suffix machines and should not be merged with them.
Engine modelCat 3204 diesel, inline 4-cylinder, direct injection
Displacement4.4 L (269 cu in)
Bore and stroke108 mm x 127 mm (4.25 in x 5.00 in)
Aspiration and power ratingNot separately published for this early production run. Verify rated power for your specific serial prefix with a dealer or the operation and maintenance manual before ordering parts.
Emissions tierPre-emissions-regulation production; no EPA or EU off-highway tier applies

Weights

Operating weight9,560 kg (21,076 lb), standard configuration
Shipping weightNot separately published for this model
Ground pressureNot published for this model

Dimensions

Transport length6.76 m (22 ft 2 in)
Transport width2.39 m (7 ft 10 in)
Transport height3.15 m (10 ft 4 in)
Attachment/coupler extension length2.57 m (8 ft 5 in)
Wheelbase and ground clearanceNot published for this model

Performance

Travel speedsNot published for this exact generation. Confirm with the machine's own operation and maintenance manual.
Lift, dig and drawbar performanceNot documented for this model in available factory literature
GradeabilityNot published for this model

Service capacities (summary)

Fuel tankNot published for this exact generation
Hydraulic systemNot published for this exact generation
Engine oilNot published for this exact generation
Cooling systemNot published for this exact generation

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

IT28 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)Not independently confirmed for the IT28's own OMM. Sources tied to its 3204 engine block disagree, roughly 9.5-19 L (2.5-5 US gal) - varies by source/configuration. Verify against this unit's OMM or a dealer.Cat DEO (Diesel Engine Oil), API CD/CE grade. SAE 10W-30 for ambient -18C to 10C (0F to 50F); SAE 15W-40 for -9.5C and above (15F and above), per Cat's standard viscosity-by-climate guidance for diesel engines of this era.
Cooling systemNot publicly documented for this exact serial range - verify with your dealer or OMM.Caterpillar heavy-duty diesel engine antifreeze/coolant (conventional formulation typical of this era), mixed per climate - full-strength or a 50/50 water blend for freeze protection.
Fuel tankNot publicly documented for this exact serial range - verify with your dealer or OMM.No. 2-D diesel fuel meeting Caterpillar's fuel specification; No. 1-D permitted in cold climates for easier starting.
Transmission / power train (powershift)Not publicly documented for this exact serial range - verify with your dealer or OMM.Cat TDTO (Transmission/Drive Train Oil). SAE 30 for warmer ambient ranges; SAE 10W for cold-weather operation, per Cat's TDTO viscosity-by-climate chart.
Final drive / differential, frontNot publicly documented for this exact serial range - verify with your dealer or OMM.Cat TDTO, same viscosity-by-climate guidance as the transmission - this drivetrain generation typically shares one oil spec across power train compartments.
Final drive / differential, rearNot publicly documented for this exact serial range - verify with your dealer or OMM.Cat TDTO, same viscosity-by-climate guidance as the transmission - this drivetrain generation typically shares one oil spec across power train compartments.
Hydraulic system (implement, steering, brake - total)Not publicly documented for this exact serial range; varies by work-tool/quick-coupler configuration - verify with your dealer or OMM.Cat TDTO where the machine shares one reservoir across hydraulics and power train (common on integrated toolcarriers of this era); Cat HYDO where a separate hydraulic-only reservoir spec applies. Confirm which applies for this serial range.
Hydraulic tank (reservoir refill only)Not publicly documented for this exact serial range - verify with your dealer or OMM.Same fluid spec as the hydraulic system above (Cat TDTO or Cat HYDO depending on configuration).
Grease (all fittings, spec only)Spec only - no refill capacity applies.Cat Multipurpose Grease (lithium/moly-base EP, NLGI 2) for standard chassis and linkage fittings; a moly-fortified Cat grease for pins and bushings under heavy shock load, per standard Cat practice.

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

Caterpillar IT28 maintenance schedule

Service intervalTasks
Every 50 h
  • Check engine oil level and top off before starting.
  • Check hydraulic tank oil level and inspect hoses and cylinders for leaks.
  • Drain water and sediment from the fuel tank water separator.
  • Grease all parallel-lift linkage pins and the quick coupler pivot points.
  • Inspect tires for cuts, wear, and correct pressure.
  • Check coolant level at the recovery bottle.
Every 250 h
  • Change engine oil and replace the oil filter.
  • Replace the fuel filter elements and bleed the fuel system.
  • Check and adjust alternator and fan belt tension.
  • Check battery electrolyte level and clean terminals.
  • Grease steering hitch and driveline U-joints.
  • Check wheel rim nut torque.
Every 500 h
  • Change the hydraulic system return filter.
  • Check transmission oil level and condition.
  • Check final drive and axle housing oil levels.
  • Inspect and adjust the service brake system.
  • Clean the radiator core and check coolant condition.
Every 1,000 h
  • Change transmission oil and clean the transmission filter screen.
  • Change axle differential and final drive oil.
  • Replace the hydraulic tank breather cap.
  • Check and adjust engine valve lash on the 3204.
  • Inspect steering cylinder pins and bushings for wear.
Every 2,000 h
  • Change hydraulic tank oil and clean the suction strainer.
  • Check and adjust fuel injection pump timing.
  • Flush and refill the cooling system with fresh coolant.
  • Inspect articulation and steering hitch bearings for play.
  • Inspect the loader linkage tower pins and bushings for wear.
Every 4,000 h
  • Inspect or rebuild the fuel injection pump and check governor calibration.
  • Inspect cylinder liners, pistons, and rings at top-end teardown.
  • Rebuild or inspect axle differentials and final drive planetaries.
  • Replace loader linkage pins, bushings, and tower bearings as a set.
Every 6,000 h
  • Perform a full engine overhaul or exchange on the naturally aspirated 3204.
  • Reseal or rebuild the lift and tilt hydraulic cylinders.
  • Rebuild the quick coupler locking mechanism and wear plates.
  • Rebuild or replace transmission clutch packs if worn.

Servicing the IT28 beyond the schedule

Predictive Maintenance & Fluid Analysis

The base IT28 runs a mechanically governed Cat 3204 with no ECM, so there are no fault codes to flag wear early; oil and coolant sampling do that job instead. Pull engine oil samples at each service interval to track wear metals off the mechanical injection pump and cylinder liners. Sample hydraulic oil for contamination since the parallel-lift linkage cylinders and integrated coupler valve see constant cycling. Watch coolant condition closely; this cast-iron block has no electronic overheat warning beyond a gauge.

Corrective & Common Repairs

Common IT28 repairs center on the parallel-lift loader linkage. Pins and bushings at the tower, lift arms, and tilt lever wear from constant cycling and need regreasing or replacement before slop develops. The integrated quick coupler's locking pins and wear plates take similar abuse from tool changes. On the 3204 mechanical injection pump, timing and governor linkage drift over time and cause rough idle or power loss. Steering hitch bushings on the articulated frame are another frequent wear point.

Overhaul & Rebuild Points

Major overhaul on the IT28 usually starts with the 3204: cylinder liners, pistons, and the injection pump itself wear predictably on this naturally aspirated mechanical engine and are the typical top-end rebuild. Axle differentials and final drives are next, especially on machines that spent years in aggregate or utility work. The parallel-lift linkage pins, bushings, and tower bearings should be inspected and replaced as a set at overhaul, along with hydraulic cylinder reseals on the lift and tilt circuits.

Seasonal & Environment Servicing

Cold-weather care on the IT28 matters more than on later electronic siblings; there is no ECM-assisted cold start strategy, so battery condition, glow plug or ether-start function, and correct coolant strength carry the load. Fuel can gel in the mechanical injection pump in hard freezes; use a winter-blend fuel. In hot or dusty aggregate yards, clean the radiator core and hydraulic oil cooler more often and service the air cleaner ahead of schedule to protect the naturally aspirated 3204 from dust ingestion.

IT28 common service parts

Part numberPart
6V-7615Film-Identification-On Fuel FilterCheck fitment →
8T-2475Transmission FilterCheck fitment →

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IT28 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
Low Engine Oil Pressure warning lampConsole lamp and buzzer activate when engine oil pressure drops below the switch threshold.Low oil level, worn oil pump, plugged oil filter, or a failed pressure switch.Stop the engine at once, check oil level, then verify pressure at the test port before restarting.
High Coolant Temperature warning lampLamp and buzzer signal coolant temperature above the normal operating range.Low coolant level, a blocked radiator core, a failed thermostat, or a slipping fan drive.Reduce engine speed and let it idle, check coolant level and radiator fins, confirm fan operation before resuming work.
Charging System warning lampLamp stays lit with the engine running, showing the alternator is not charging the batteries.A worn or broken drive belt, a failed alternator, or loose/corroded battery cable connections.Check belt condition and tension, inspect battery terminals and wiring, test alternator output.
Air Cleaner Service (restriction) indicatorMechanical restriction indicator (pop-up button or vacuum gauge) shows the air filter element is plugged.A dirty or clogged primary air filter element.Service or replace the air filter element and reset the indicator.
Transmission/Torque Converter Oil Temperature warning lampLamp lights when powershift transmission or torque converter oil runs hotter than normal.Low transmission fluid, a plugged oil cooler, or clutch packs slipping under load.Check fluid level and condition, inspect the oil cooler for restriction, verify clutch charging pressure per the service manual.
Brake System Low Pressure warning lamp/buzzerLamp and buzzer warn that hydraulic brake accumulator charge has dropped below the safe operating pressure.A brake charging pump problem, lost accumulator precharge, or an external hydraulic leak.Stop the machine safely and do not operate until pressure is restored; check the charging pump and accumulator precharge per the service manual.

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

IT28 attachments & work tools

General purpose buckets

Factory general purpose bucket capacity for this toolcarrier is documented at 1.7 m3 (2.25 yd3) heaped, with a flush-mounted-tooth variant also offered. Across this Cat toolcarrier size class, general-purpose bucket capacity commonly runs roughly 1.3-2.4 m3 (1.75-3.0 yd3); exact figure varies by configuration.

Bucket wear parts

Buckets take bolt-on long and short tooth groups, a uni-tooth option, and bolt-on bit/cutting-edge segments for non-penetration work. Long and short tip inserts fit the same tooth adapters, letting one bucket switch between digging and loading duty.

Pallet fork carriage and tines

A quick-coupler fork carriage mounts pallet fork tine sets for material handling and yard work. Several pallet fork tine groups are listed for the carriage, covering different load and tine-length combinations.

Material handling arm (extendable boom)

A multi-section extendable boom/arm option converts the toolcarrier into a high-lift material handler, extending fork or hook reach beyond the standard loader linkage. It mounts through the same coupler interface used for buckets and forks.

Integral hydraulic quick coupler

Tool changes use Caterpillar's integral quick-coupler system: an in-cab switch fires a dedicated mounting-and-cylinder group to lock or release the work tool without leaving the seat. This coupler assembly is standard equipment for tool changes on this class, separate from the bucket/fork tools themselves.

Lift/tilt/coupler hydraulic circuit

Lift, tilt, and coupler functions share one combined hydraulic valve group with its own inlet flow control and relief valve, rather than running separate circuits. Buckets, forks, and the extendable arm all work off this shared circuit; no separate hydraulic kit is documented for these basic work tools.

Counterweight options

Factory counterweight groups are offered to rebalance the machine when running heavier front-end tools such as forks or the extendable material-handling arm. Counterweight groups are documented, sized to different tool/ballast combinations.

ROPS/cab configuration and guarding

The machine is offered with either an open ROPS canopy or an enclosed ROPS cab, with a documented conversion arrangement to remove the cab. A vandalism guard and a separate vandalism lock protect the instrument panel and cab openings on machines left unattended on site.

Sound suppression and climate package

A sound-suppression arrangement is factory-offered to lower cab noise. Heater and air-conditioner arrangements (cab heater lines, refrigerant compressor and lines) are separate factory options layered onto either the canopy or enclosed-cab build.

Other bucket families offered for this size class

Beyond the general-purpose bucket, this Cat toolcarrier size class is also offered with light-material, multi-purpose (4-in-1), and side-dump buckets through the same coupler. Capacity and fit vary by configuration; confirm exact fitment for a given serial range with your dealer.

Sweeping and clearing attachments (class-typical)

Brooms/sweepers and snow-clearing tools (blades, light-material buckets) are offered across this Cat toolcarrier size class through the same quick-coupler interface, for yard sweeping and winter service. Not confirmed against this specific machine's own parts documentation; verify current availability with your dealer.

All IT28 assemblies by section

Every catalogued assembly group for the Caterpillar IT28. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
7w1612 Muffler Group
8n6624 Air Cleaner Gp
7c4428 Air Cleaner Gp
8n6623 Air Cleaner Gp
8n2051 Air Compressor Group
1w5824 Air Compressor Group
1W***24Air Compressor Group; Air Compressor Group1
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8n4780 Turbocharger Cartridge Group*R
1w5291 Air Compressor Lines Group
1W***91Lines Group-Air Compressor; Air Compressor Lines Group1
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4w5025 Air Lines Group
1w9448 Air Lines Group
1w8869 Turbocharger Oil Lines Group
1W***69Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group1
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6n6085 Exhaust Manifold Group
6N***85Manifold Group-Exhaust; Exhaust Manifold Group1
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8n4774 Turbocharger Group
6n5079 Turbocharger Group
6N***79Turbocharger Group; Turbocharger Group1
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Basic Engine
4w8593 Housing Gp-Flywheel
4W***93Housing Group-Flywheel; Flywheel Housing Group1
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6n1318 Flywheel Housing Group
6N***18Housing Group-Flywheel; Flywheel Housing Group1
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8n9509 Belt Tightener Group
2w1337 Camshaft Group
2W***37Camshaft Group-Single; Single Camshaft Group1
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1w1352 Valve Mechanism Cover Group
1W***52Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
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Crankshaft Bearing Replacements
1W***55Bearing (0.25mm Undersize)1
1W***56Bearing (0.51mm Undersize)1
1W***57Bearing (1.27mm Undersize)1
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7c0688 Crankshaft Gp
7C***88Crankshaft Group; Crankshaft Group1
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1w9768 Crankshaft Group
1W***68Crankshaft Group; Crankshaft Group1
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2w7902 Cylinder Block Assembly
7n4821 Cylinder Block Assembly
6n9049 Cylinder Block Group
6N***49Cylinder Block Group; Cylinder Block Group1
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7c2320 Head As-Cylinder Service*R
7w9391 Cylinder Head Assembly
2w0011 Cylinder Head Group*R
7w9394 Cylinder Head Gp*R
6n2397 Cylinder Head Group*R
6N***97Cylinder Head Group; Cylinder Head Group1
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6n2397 Cylinder Head Gp*R
6N***97Cylinder Head Group; Cylinder Head Group1
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2w1682 Fan Drive Group-(Belt)
2w4002 Water Pump Drive Group-(Belt)
2W***02Drive Group-Water Pump; Water Pump Drive Group1
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6n2683 Flywheel Group
1w1355 Front Gear Group
1W***55Gear Group-Front; Front Gear Group1
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1w1353 Housing Gp-Front
1W***53Housing Group-Front; Front Housing Group1
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2w1678 Engine Lifting Group
2W***78Lifting Group; Lifting Eye Gp-Engine1
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7n4129 Engine & Transmission Mounting Group-Flexible
7n4129 Engine & Transmission Mounting Gp-Flexible
6n3052 Oil Pan Group
6N***52Pan Group-Oil; Pan Gp-Engine Oil1
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2w1040 Connecting Rod & Piston Group-4 Required
2W***40Piston & Rod Group; Connecting Rod And Piston Group1
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2w4841 Piston Group
7n6428 Pulley Group
6n7205 Auxiliary Drive Pulley Group
6N***05Pulley Group-Auxiliary Drive; Auxiliary Drive Pulley Group1
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7n0946 Engine Support Group
7N***46Support Group-Engine; Engine Support Group1
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3v6283 Support Gp-Transmission & Engine
7w6410 Support Group-Engine
7W***10Support Group-Engine-Front; Support Gp-Front Engine1
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1w5720 Valve Mechanism Group
1W***20Valve Mechanism Group; Valve Mechanism Group1
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Cab, Gauges And Accessories
4v7849 Adjuster Group-Suspension Seat
6w1506 Adjuster Gp-Seat
8v1177 Adjuster Gp-Seat
6w8505 Adjuster Gp-Seat
6W***05Adjuster Group-Seat; -Suspension1
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9c3045 Air Conditioner Ar
1S***47Seal 17.17 mm. (.676 In.) I.D.2
1W***43Radiator Group; Radiator Group1
3V***80Lines Group-Air Conditioner; Air Conditioner Lines Group1
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9g9288 Protection Cover Group-Hydraulic Tank Cap
9G***88Protection Cover Group; -Hydraulic Tank-Steering Tank Fill Cap-Hydraulic Tank Fill Cap1
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9v8184 Seat Group
9v8786 Seat Gp
8v1176 Seat Gp
9v8184 Seat Gp
8v1159 Air Conditioner Group-Part 2 Of 2
8V***59Air Conditioner Group; Air Conditioner Group1
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8v1159 Air Conditioner Group-Part 1 Of 2
8V***59Air Conditioner Group; Air Conditioner Group1
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9g9813 Alarm Group-24 Volt
9G***13Alarm Group; -Action-Action, Engine Overspeed1
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6w9323 Blower Gp
6w1563 Canopy Group
7n4297 Compressor Gp-Clutch & Refrigerant*R
7N***97Clutch & Refrig Compressor Group1
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7n4296 Compressor Gp-Clutch & Refrigerant*R
7N***96Compressor Group-Clutch & Refrig1
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7n6245 Compressor Gp-Refrigerant
7N***45Compressor Group-Refrigerant; Refrigerant Compressor Group1
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8v2512 Control & Duct Gp-Part 4 Of 4
8V***12Control & Duct Group; Control And Duct Group1
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8v2512 Control & Duct Group-Part 2 Of 4
8V***12Control & Duct Group; Control And Duct Group1
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8v2512 Control & Duct Gp-Part 2 Of 4
8V***12Control & Duct Group; Control And Duct Group1
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8v2512 Control & Duct Gp-Part 3 Of 4
8V***12Control & Duct Group; Control And Duct Group1
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8v2512 Control & Duct Gp-Part 1 Of 4
8V***12Control & Duct Group; Control And Duct Group1
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8v2512 Control & Duct Group-Part 1 Of 4
8V***12Control & Duct Group; Control And Duct Group1
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9c3029 Conversion Ar-Non Cab
1H***63Lug; (25mm Oal)1
2G***15Plug; (For 23.02mm(.906in)1
4M***83Bolt-Bracket As. To Divider Plate4
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7k5636 Protection Cover Group-Transmission Oil Cap
7K***36Cover Group-Protection; Protection Cover Group1
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5v4884 Seat Cover Group
4v9830 Seat Cover Group
4v6399 Arm Cushion Assembly-R.H.
4V***99Cushion As-Arm; Cushion Assembly Arm R.H.1
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4v6400 Arm Cushion Assembly-L.H.
9v4331 Dash Group
9v4332 Door Group-R.H. Rear Cover-Literature
8v2505 Gauge Gp-Temperature
8v2513 Air Pressure Gauge Group
8v5221 Fuel Gauge Group
8v1167 Guard Gp-Vandalism
8V***67Guard Group-Vandalism; Guard Gp-Vandalism (Instrument Panel)1
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8v2508 Heater & Air Conditioner Ar
1S***47Seal 17.17 mm. (.676 In.) I.D.2
1W***43Radiator Group; Radiator Group1
3V***80Lines Group-Air Conditioner; Air Conditioner Lines Group1
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8v2507 Heater Arrangement
3V***81Lines Group-Cab Heater1
8V***54Heater Group-Cab; Cab Heater Group1
8V***07Heater Ar1
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8v1154 Heater Gp-Cab-Part 1 Of 2
8V***54Heater Group-Cab; Cab Heater Group1
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8v1154 Heater Gp-Cab-Part 2 Of 2
8V***54Heater Group-Cab; Cab Heater Group1
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8v1154 Heater Gp-Cab- Part 2 Of 2
8V***54Heater Group-Cab; Cab Heater Group1
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8v1154 Heater Gp-Cab- Part 1 Of 2
8V***54Heater Group-Cab; Cab Heater Group1
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3v6680 Air Conditioner Lines Group-Part 3 Of 3
3V***80Lines Group-Air Conditioner; Air Conditioner Lines Group1
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3v6680 Air Conditioner Lines Group-Part 1 Of 3
3V***80Lines Group-Air Conditioner; Air Conditioner Lines Group1
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3v6680 Air Conditioner Lines Group-Part 2 Of 3
3V***80Lines Group-Air Conditioner; Air Conditioner Lines Group1
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3v6681 Heater Lines Group
9v1977 Vandalism Lock Group
9v2453 Mirror Group-Lh
8v1169 Mirror Group-Rear View
8v5050 Mirror Group-Rh
8v6928 Mounting Gp-Cab
9v2672 Instrumental Panel Gp-Part 1 Of 2
9v2672 Instrument Panel Gp-Part 1 Of 2
9v2671 Instrument Panel Gp
9v2672 Instrument Panel Gp-Part 2 Of 2
9v2672 Instrumental Panel Gp-Part 2 Of 2
6v6561 Wiper Pivot Gp
6V***61Pivot Group-Wiper Arm; (Wiper Arm)1
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9c4636 Rollover Ar
8V***67Guard Group-Vandalism; Guard Gp-Vandalism (Instrument Panel)1
8V***17Rops Group1
9C***36Rops Ar1
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8v1187 Rops Gp-Enclosed-Part 2 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v1187 Rops Group-Enclosed-Part 3 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v1188 Rops Group-Enclosed-Part 1 Of 2
8v1187 Rops Group-Enclosed-Part 4 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v6917 Rops Gp
8v1187 Rops Group-Enclosed-Part 1 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v1187 Rops Gp-Enclosed-Part 4 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v1187 Rops Gp-Enclosed-Part 5 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v1187 Rops Gp-Enclosed-Part 1 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v1187 Rops Gp-Enclosed-Part 3 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v1187 Rops Group-Enclosed-Part 2 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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8v1188 Rops Group-Enclosed-Part 2 Of 2
8v1187 Rops Group-Enclosed-Part 5 Of 5
8V***87Rops Group; Roll-Over Protective System Group1
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6w8914 Seat Gp-Adjustable-Suspension
8v1175 Seat Gp-Adjustable
6w8915 Seat Gp-Adjustable
9c4449 Seat Gp-Adjustable
2v2387 Seat Gp-Adjustable-Suspension
2V***87Seat Group-Adjustable; Seat Gp-Adjustable Suspension1
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3v8252 Suspension Seat Group
3V***52Seat Group-Suspension; Suspension Seat Group1
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6w9744 Seat Gp-Suspension
6W***44Seat Group-Suspension; -Vinyl, Low Back1
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8v1181 Support Gp-Seat
8v1181 Seat Support Group
6w5234 Suppression Ar-Sound-Part 2 Of 2
6w5234 Suppression Ar-Sound-Part 1 Of 2
9v7924 Suspension Group-Seat-Part 2 Of 2
6w8502 Suspension Gp-Seat-Part 1 Of 2
9v7924 Suspension Group-Seat-Part 1 Of 2
5v4861 Seat Group-Suspension-Part 1 Of 2
5v4861 Seat Suspension Group-Part 2 Of 2
6w8502 Suspension Gp-Seat-Part 2 Of 2
7n8000 Switch As-Toggle
7N***00Switch As-Toggle; (Warning Light)1
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9g7641 Start Switch Group
9G***41Switch Group-Start; -Engine, Key-Vims Service1
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8v1189 Washer & Wiper Gp
9c1521 Washer Gp
9C***21Washer Group-Windshield; Washer Gp-Nippondenso1
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9c1522 Washer Gp
9C***20Washer Group-Windshield1
9C***21Washer Group-Windshield; Washer Gp-Nippondenso1
9C***22Washer Group-Windshield1
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9c1520 Washer Gp
6w7332 Washer & Wiper Gp
6w7333 Washer & Wiper Gp-Rear
6w7333 Washer & Wiper Gp
8v1161 Washer & Wiper Group-Rear
7x1983 Wiper Gp
7X***83Wiper Group; Wiper Group (Nippondenso)1
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7x1982 Wiper Gp
7X***82Wiper Group; Wiper Group (Robert Bosch)1
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3t7064 Wiper Gp-Sensor
3T***64Wiper Group-Sensor1
7X***82Wiper Group; Wiper Group (Robert Bosch)1
7X***83Wiper Group; Wiper Group (Nippondenso)1
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8v1182 Cab Wiring Gp
Chassis
4v1859 Demountable Rim Group-4 Required-(17.5 X 25 Tubless Tires)
3v6310 Demountable Rim Group-4 Required-(15.5 X 25 Tubeless Tires)
3v8262 Axle Gp-Fixed
3v8256 Oscillating Axle Group
9v5325 Counterweight Gp
9v5326 Counterweight Gp
8v3585 Side Door Group
8v3585 Side Door Gp
8v9853 Fender Group-Wheel Loader (Roading) Part 1 Of 2
8v1075 Fender Group
8v9853 Fender Group-Wheel Loader (Roading) Part 2 Of 2
8v3591 Firewall Group
3v6281 Frame Gp-Rear
8v9681 Frame Gp-Front
3v6301 Crankcase Guard Group
8v9685 Front Guard Group
3v6321 Guard Gp-Powertrain
3V***21Guard Group-Power Train; Guard Gp-Powertrain Guard1
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3v6282 Guard Gp-Radiator-Part 2 Of 2
3v6282 Guard Gp-Radiator-Part 1 Of 2
3v6296 Articulated Hitch Group
8v3590 Hood Gp
8v3592 Ladder Gp
7v3656 Steering Lock Link Group
9c0078 Logging Ar
4V***59Rim Group-Demountable4
9C***78Logging Ar1
9V***26Counterweight Group1
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9c4635 Platform Ar
8V***67Guard Group-Vandalism; Guard Gp-Vandalism (Instrument Panel)1
8V***16Platform Group-Cab1
9C***35Platform Ar1
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8v6916 Platform Gp
Cooling System
9n5659 Engine Oil Cooler Group
1w8094 Engine Oil Cooler Group
1W***94Cooler Group-Engine Oil; Engine Oil Cooler Group1
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7n7072 Blower Fan Group
1w8755 Heater Gp-Jacket Water
3t8724 Heater Gp-Jacket Water
6n9125 Heater Gp-Jacket Water (750 Watt, 120 Volt)
6n9739 Heater Gp-Jacket Water (750 Watt, 120 Volt)
6N***39Heater Group-Jacket Water; Jacket Water Heater Group1
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3v6298 Lines Gp-Torque Converter Cooler
4n0188 Water Lines Group
4N***88Lines Group-Water; Water Lines Group1
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4n0660 Water Pump Group
4N***60Pump Group-Water; Water Pump Group1
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1w9440 Radiator Group-Part 1 Of 2
1w9440 Radiator Group-Part 2 Of 2
1w9443 Radiator Group-(Folded Core)
1w9441 Radiator Group-Folded Core
Engine Arrangement
7n6429 Engine Arrangement-Part 2 Of 2
1W***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
1W***81Cover Group-Tachometer Drive; Tachometer Drive Cover Group1
1W***91Lines Group-Air Compressor; Air Compressor Lines Group1
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7n6429 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
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Fuel System And Governor
8v3593 Tank Gp-Fuel
1w2481 Cover Group-Tachometer Drive
1W***81Cover Group-Tachometer Drive; Tachometer Drive Cover Group1
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4w4938 Pump Group-Governor And Fuel Injection-Type 2
4W***38Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group1
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4w4938 Pump Group-Governor And Fuel Injection-Type 1
4W***38Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group1
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7w1488 Governor Group-Part 1 Of 3
7w1488 Governor Group-Part 2 Of 3
2w6559 Governor Group-Part 1 Of 2
2w4107 Governor Group-Part 2 Of 2
2w6559 Governor Group-Part 2 Of 2
2w4107 Governor Group-Part 1 Of 2
1w5867 Lines Gp-Fuel Filter
1W***67Lines & Fuel Filter Group; Fuel Filter And Lines Group1
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8v3586 Fuel Lines Group
7n0042 Fuel Injection Lines Group
1w1354 Fuel Injection Lines Group
1W***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
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1w1354 Lines Gp-Fuel Injection
1W***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
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8v1179 Governor Pedal Group
8V***79Pedal Group-Governor; Governor Pedal Group1
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4w0469 Fuel Injection Pump Group
1w6539 Fuel Injection Pump Group
8n5251 Fuel Priming Pump & Primary Filter Group
8N***51Pump Group-Fuel Prime & Prim Filter1
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1w8874 Fuel Priming Pump & Primary Filter Group
1W***74Pump Group-Fuel Prime & Prim Filter; Fuel Priming Pump And Primary Filter Group1
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8n3365 Fuel Priming Pump Group
8N***65Pump Group-Fuel Priming; Priming Pump-Fuel & Primary Filter1
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2w4403 Fuel Transfer Pump Group
2W***03Pump Group-Fuel Transfer; Fuel Transfer Pump Group1
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1w0568 Fuel Transfer Pump Group
4w5063 Torque Control Gp
Hydraulic System
1u2668 Cartridge Group-79 Litere Per Minute (21 Gpm)-Front*R
1u2665 Cartridge Group-53 Liter Per Minute (14 Gpm) Rear*R
6w3359 Control Gp-Mechanical Hydraulic-3rd Valve-Lever Lock
9v6740 Control Gp-Mechanism Hydraulic-Part 1 Of 2
9V***40Control Group-Mechanical Hydraulic1
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9v6740 Control Gp-Mechanical Hydraulic-Part 1 Of 2
9V***40Control Group-Mechanical Hydraulic1
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9v6740 Control Gp-Mechanism Hydraulic-Part 2 Of 2
9V***40Control Group-Mechanical Hydraulic1
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9v6740 Control Gp-Mechanical Hydraulic-Part 2 Of 2
9V***40Control Group-Mechanical Hydraulic1
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9v1798 Cooler Ar=Hydraulic Oil
2W***01Hydraulic Oil Core Assembly1
9V***91Lines Group-Oil Cooler; Oil Cooler Lines Group1
9V***98Cooler Ar-Hydraulic Oil1
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9c2293 Cooler Ar-Hydraulic Oil
2W***01Hydraulic Oil Core Assembly1
6W***34Lines Group-Oil Cooler1
9C***93Cooler Ar-Hydraulic Oil1
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9v8921 Mounting And Cylinder Gp-Quick Coupler
3v6286 Mounting And Cylinder Group
8v9684 Seal & Cylinder Group-Tilt-(2 Required)
4T***45Cylinder Group-Tilt1
7K***03Seal-Lip Facing Away From Bearing2
8V***84Cylinder & Seal Group1
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3v6329 Cylinder & Seal Group
3v6318 Cylinder & Seal Group-Lift-(2 Required)
3g2991 Cylinder Gp-Lift-(Chg. 06)
3g2991 Cylinder Gp-Lift-(Chg. 04)
9t2352 Cylinder Gp-(Chg. 00)
3g3501 Steering Cylinder Group-(Chg. 06)
4t5545 Cylinder Group-Tilt-(Chg. 01)
8v9692 Positioner & Kickout Gp
4t1022 Lever Gp
4T***22Lever Group; -Ripper Lift-Ripper Tilt-Blade Tilt1
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6w7748 Lines Gp-Front-Part 3 Of 4
9v1797 Lines Gp-Front-Part 1 Of 4
9v8924 Front Lines Group-Part 2 Of 3
8v9695 Lines Gp-Front-3rd Valve-Part 2 Of 3
8v9695 Lines Gp-Front-3rd Valve-Part 1 Of 3
8v9695 Lines Gp-Front- Part 2 Of 3
9v8924 Front Lines Group-Part 1 Of 3
6w7748 Lines Gp-Front-Part 4 Of 4
9v1797 Front Lines Gp- Part 3 Of 4
8v9695 Lines Gp-Front-3rd Valve-Part 3 Of 3
6w9681 Lines Gp-Front- Part 3 Of 4
6w9681 Lines Gp-Front- Part 4 Of 4
9v1797 Front Lines Gp- Part 2 Of 4
6w7748 Lines Gp-Front-Part 1 Of 4
6w7748 Lines Gp-Front-Part 2 Of 4
8v9695 Lines Gp-Front- Part 3 Of 3
9v8924 Front Lines Group-Part 3 Of 3
9v1797 Front Lines Gp- Part 4 Of 4
8v9695 Lines Gp-Front- Part 1 Of 3
6w9681 Lines Gp-Front- Part 1 Of 4
6w9681 Lines Gp-Front- Part 2 Of 4
8v7418 Hydraulic Oil Lines Group-Three Valve
8V***18Lines Group-Hydraulic Oil; Hydraulic Oil Lines Group1
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8v9688 Lines Gp-Lift Cylinder
9v1791 Oil Cooler Lines Group-Hydraulic-Part 2 Of 2
9V***91Lines Group-Oil Cooler; Oil Cooler Lines Group1
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9v1791 Oil Cooler Lines Group-Hydraulic-Part 1 Of 2
9V***91Lines Group-Oil Cooler; Oil Cooler Lines Group1
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6w7734 Lines Gp-Oil Cooler-Part 1 Of 2
6w7734 Lines Gp-Oil Cooler-Part 2 Of 2
8v9686 Tilt Cylinder Lines Group-Part 2 Of 2
8v9686 Tilt Cylinder Lines Group-Part 1 Of 2
8v1156 Hydraulic Hand Control Lock Group-3 Lever
8V***56Lock Group-Hydraulic Hand Control; Hydraulic Hand Control Lock Group1
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9c1439 Lock Gp-Hydraulic Hand Control
9C***39Lock Group-Hydraulic Hand Control1
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8v4502 Hydraulic Tank Mounting Group
4v6514 Vane Pump Group-Double
3g5918 Vane Pump Group
4t0489 Filter & Tank Group-Hydraulic-Part 2 Of 2
4t0489 Filter & Tank Group-Hydraulic-Part 1 Of 2
9v2864 Mounting & Valve Group
4t5008 Valve Group
4t1040 Valve Group
9t0491 Relief Valve Group-Pilot Operated
4t5006 Valve Group-Shifting
4t5007 Valve Group
4t5869 Lift,Tilt,Coupler,Inlet Flow Control & Relief Valve Group
4t5896 Valve Group-Check
4T***96Valve Group-Check; -Pressure Reducing1
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4t7002 Valve Gp-Check & Relief
4t0947 Valve Gp-Check And Relief
9t0211 Valve Gp-Lift Control
9T***11Valve Group-Control; (Lift Control)1
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9t0982 Valve Gp-Control
9T***82Valve Group-Control; (Coupler Cont.)1
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4t5866 Tilt Control Valve Group
4t5541 Diverter Valve Group-Front Lines
9t1617 Valve Group-Inlet Flow Control & Relief
4t1039 Valve Group-Main Relief-Pilot Operated
4t1008 Valve Group-Relief
4T***08Valve Group-Relief; -Inlet Manifold-Charging1
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4t1860 Shuttle Valve Group
4T***60Valve Group-Shuttle; -Ripper Lift-Ripper Tilt-Blade Tilt-Blade Lift1
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6t5859 Solenoid Valve Group-Diverter
6T***59Valve Group-Solenoid; (Ride Control)1
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Implements
9v1795 Arm Group-3 Piece Extendable Boom
3g4428 Bit & Cutting Edge Group
9v8954 General Purpose Bucket Assembly
9v8956 Bucket As-General Purpose
9V***56Bucket As-General Purpose; General Purpose Bucket Assembly1
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9v8955 General Purpose Bucket Assembly-1.7 Cu.M (2.25 Cu.Yd.)Capacity
9v8957 General Purpose Bucket Assembly-Flush Mounted Teeth
9V***57Bucket As-General Purpose; General Purpose Bucket Assembly1
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6w3060 Bucket Gp-General Purpose
6W***60Bucket Group-General Purpose1
9J***69Tip Group-Long; -J-2508
9V***56Bucket As-General Purpose; General Purpose Bucket Assembly1
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6w3061 Bucket Gp-General Purpose
6W***61Bucket Group-General Purpose1
9J***69Tip Group-Long; -J-2508
9V***57Bucket As-General Purpose; General Purpose Bucket Assembly1
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6w8832 Carriage As-Fork
6W***32Carriage As-Fork; -Quick Coupler1
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9v9076 Fork Carriage Assembly
8v9682 Control Gp-Implement-Part 2 Of 2
8v9682 Control Gp-Implement-Part 1 Of 2
6w8935 Fork Gp-Pallet
09***37Service Group-Fork Positioner1
6W***35Fork Group1
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6w8933 Fork Gp
09***37Service Group-Fork Positioner1
6W***33Fork Group1
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6w8900 Fork Gp
09***37Service Group-Fork Positioner1
6W***00Fork Group1
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6w1562 Installation Gp-Controls-Part 1 Of 2
6w1562 Installation Gp-Controls-Part 2 Of 2
Pallet Fork Groups
09***87Fork Group; Fork Group - Pallet0
09***88Fork Group; Fork Group - Pallet0
09***85Fork Group - Pallet0
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9v8920 Quick Coupler Gp
9j3169 Tip Gp-Long
9j3178 Tip Gp
3g4017 Tooth Group-Long
3g4018 Tooth Gp-Short
1u2424 Uni-Tooth Group
Lubrication System
1w7298 Breather Group
1W***98Breather Group; Breather Gp-Crankcase1
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7n6496 Oil Filler Group
8n5930 Oil Filter Group
8N***30Filter Group-Engine Oil; Engine Oil Filter Group1
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7n6497 Disposal Gp-Fume
7n6497 Fumes Disposal Group
7n6498 Oil Level Gauge Group
7N***98Gauge Group-Oil Level (Dipstick)1
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2w2833 Pump Gp-Engine Oil
2W***33Pump Group-Engine Oil; Engine Oil Pump Group1
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Power Train-Power Transmission Unit
6w5610 Brake Gp-Parking
1V***99Brake Group-Parking; Parking Brake Group1
6W***10Brake Group-Parking1
6W***11Brake Group-Parking; Parking Brake Group1
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6w5611 Brake Gp-Parking
6W***11Brake Group-Parking; Parking Brake Group1
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1v2699 Parking Brake Gp
1V***99Brake Group-Parking; Parking Brake Group1
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2v4282 Control Gp-Transmission
8p8980 Transmission Hydraulic Control Group
8P***80Control Group-Transmission Hydraulic; Transmission Hydroulic Control Group1
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3t8386 Shipping Covers Group
3T***86Covers Group-Shipping; Shipping Covers Group1
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5v5297 Gear Gp-Differential & Bevel-Front
5V***97Differential & Bevel Gear Group1
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3v8263 Gear Gp-Differential & Bevel-Rear
3V***63Differential & Bevel Gear Group1
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5v5298 Differential Group
5v5303 Differential Group
4V***49Differential Group (No Serviced Parts)1
5V***03Differential Group1
5V***30Case As-Differential1
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9p9523 Pump Drive Group
9P***23Drive Group-Pump; Pump Drive Group1
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7v3806 Drive Shaft Group--Dana Corp
7v3622 Drive Shaft Group
3v6312 Filler Gp-Power Train Oil
3v6311 Filter & Lines Group
9p1509 Transmission Filter Group-With Housing
9P***09Filter Group-Transmission; (Trans.)1
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8p9855 Gear Gp-Transfer-Output
8P***55Gear Group-Transfer; Transfer Gear Group1
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7x2421 Bearing Kit-Transmission
1T***34Bearing-Ball1
4S***38Bearing-Special Ball1
5P***31Bearing As-Roller3
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9g0313 Power Train Oil Lines Group
9G***13Lines Group-Power Train Oil; Power Train Oil Lines Group1
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8p9856 Parts & Case Group
8P***56Parts & Case Group-Transmission1
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8p9857 Planetary Gp-Transmission-Part 1 Of 4
8P***57Planetary Group; Planetary Group1
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8p9857 Planetary Gp-Transmission-Part 3 Of 4
8P***57Planetary Group; Planetary Group1
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8p9857 Planetary Gp-Transmission-Part 4 Of 4
8P***57Planetary Group; Planetary Group1
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8p9857 Planetary Gp-Transmission-Part 2 Of 4
8P***57Planetary Group; Planetary Group1
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8p9857 Planetary Gp-Transmission
8P***57Planetary Group; Planetary Group1
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7g3200 Gear Pump Group
7G***00Pump Group-Gear; (Transmission)1
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8v6826 Slip Joint Group--Rockwell International
8V***26Slip Joint Group; Slip Joint Group1
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7v3781 Slip Joint Group--Dana Corp
7V***81Slip Joint Group; Slip Joint Group--Dana Corp1
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8v6825 Slip Joint Group
7V***81Slip Joint Group; Slip Joint Group--Dana Corp1
8V***25Slip Joint Group1
8V***26Slip Joint Group; Slip Joint Group1
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1t1448 Torque Converter Group
1T***48Torque Converter Group; Torque Converter Group1
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8p9853 Transmission Arrangement
1T***48Torque Converter Group; Torque Converter Group1
3T***86Covers Group-Shipping; Shipping Covers Group1
8P***80Control Group-Transmission Hydraulic; Transmission Hydroulic Control Group1
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7v3780 Universal Joint Group--Dana Corp
7V***80Universal Joint Group; Universal Joint Group--Dana Corp1
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8v6828 Universal Joint Group--Rockwell International
8V***28Universal Joint Group; Universal Joint Group1
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8v6824 Universal Joint Group--Rockwell International
8V***24Universal Joint Group; Universal Joint Group1
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8v6823 Universal Joint Group
7V***84Universal Joint Group; Universal Joint Group--Dana Corp1
8V***23Universal Joint Group1
8V***24Universal Joint Group; Universal Joint Group1
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7v3784 Universal Joint Group--Dana Corp
7V***84Universal Joint Group; Universal Joint Group--Dana Corp1
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8v6827 Universal Joint Group
7V***80Universal Joint Group; Universal Joint Group--Dana Corp1
8V***27Universal Joint Group1
8V***28Universal Joint Group; Universal Joint Group1
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9v8926 Valve & Lines Gp-Neutralizer Disconnect
4d3278 Air Control Valve Group
4D***78Valve Group-Air Control; -Parking Brake Switch1
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8p3040 Neutralizer Valve Group
8p9854 Relief Valve Group-Torque Converter Charging
8P***54Valve Group-Relief; Relief Valve Group1
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7t1374 Control Valve Group-Selector & Pressure
7T***74Valve Group-Selector & Press Cont1
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8p8981 Valve Group-Neutralizer & Selector & Pressure
8P***81Valve Group-Transmission Control1
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5v5299 Final Drive And Brake Wheel Group-4 Required
5V***99Wheel Group-Final Drive & Brake1
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Service Equipment And Supplies
Gasket Kits
6V***01Turbocharger Mounting0
6V***90Rear Structure Serial No. 45v32894-Up0
6V***53Oil Cooler And Lines0
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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) Mounting26
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6w0057 Tool Box Group
9s7978 Hand Tool Group
Starting And Electrical System
6t7223 Alternator Gp
6T***23Alternator Group-Charging; Alternator Group-Nippondenso -- 24 Volt, 50 Ampere1
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9g4574 Alternator Group-Nippondenso
9G***74Alternator Group-Charging; Alternator Group (Nippondenso)1
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6n2738 Alternator Gp-24 Volt, 50 Ampere
3t6352 Alternator Group-Delco-Remy-24 Volt, 35 Ampere-Part 2 Of 2
6n2740 Alternator Group-24 Volt, 35 Ampere
4N***92Wire Assembly1
6N***40Alternator Group-Charging1
6N***32Pulley-Alternator1
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3t6352 Alternator Group-Delco-Remy-24 Volt, 35 Ampere-Part 1 Of 2
3t1888 Alternator Group-Delco Remy-24 Volt,50 Ampere
3T***88Alternator Group-Charging; Alternator Group Delco-Remy 24 Volt, 50 Ampere1
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9g9538 Alternator Group-24 Volt, 50 Ampere
5s9088 Alternator Group-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
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8v3587 Battery & Wiring Group-Part 3 Of 3
8v3587 Battery & Wiring Group-Part 2 Of 3
8v3587 Battery & Wiring Group-Part 1 Of 3
6n9294 Alternator Group-24 Volt, 35 Ampere*R
3T***52Alternator Group-Charging1
6N***94Alternator Group; (24-Volt, 35-Ampere)1
7N***20Alternator Group; Alternator Group (Robert Bosch)1
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7n9720 Alternator Group-24 Volt, 35 Ampere
7N***20Alternator Group; Alternator Group (Robert Bosch)1
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8v7193 Battery Group
8v7967 Converter Gp-Radio
7m7147 Combination Stop & Tail Lamp Assembly-24 Volt
2s4783 Lamp Assembly
6t8941 Lamp Group-24 Volt-Rotating Warning
7g9318 Signal Lamp Group-24 Volt-Amber Lens
6n7989 Flood Lamp Group-24 Volt
6N***89Lamp Group-Flood; -Ladder Access1
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8v1163 Lighting Gp-2 Lamp-Canopy
8v1162 Lighting Gp-2 Lamp
8v7395 Lighting Group
8v1162 Lighting Gp-2 Lamp-Cab
6w7071 Lighting Gp-2 Lamp-Auxiliary-Part 2 Of 2
6W***71Lighting Group-2 Lamp; Lighting Gp-Auxiliary Cab1
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6w7071 Lighting Gp-2 Lamp-Auxiliary-Part 1 Of 2
6W***71Lighting Group-2 Lamp; Lighting Gp-Auxiliary Cab1
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4v6791 Lighting Gp-Signal-Part 1 Of 2
4v6791 Lighting Gp-Signal-Part 2 Of 2
8v6107 Warning Lighting Group-Rotating Beacon-Canopy-Type 1
8v6107 Warning Lighting Group-Rotating Beacon-Canopy-Type 2
8v1164 Warning Lighting Group-Rotating Beacon-Cab & Rops-Type 1
6w9756 Lighting Gp-Warning-Rotating Beacon
8v1164 Warning Lighting Group-Rotating Beacon-Cab & Rops-Type 2
8v7136 Battery Mounting Group
9v7225 Starting Receptacle Group
9V***25Receptacle Group-Auxiliary Start1
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3t3421 Solenoid Switch Assembly-24 Volt
3t4704 Solenoid Assembly-24 Volt
4v8913 Aid Gp-Ether Starting
3t2371 Electric Starting Motor Group
3T***71Starting Motor Group-Electric; Electric Starting Motor Group1
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3t2764 Starting Motor Gp-Electric*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
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8c3594 Starting Motor Gp-Electric-24 Volt*R
8C***94Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
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6n1678 Electric Starting Motor Group
3t2756 Electric Starting Motor Group-Part 1 Of 3
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
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3t2756 Electric Starting Motor Group-Part 2 Of 3
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
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3t2756 Electric Starting Motor Group-Part 3 Of 3
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
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7n0718 Disconnect Switch Assembly
7N***18Switch As-Disconnect; -Battery-Ground Level1
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8v6969 Back-Up Warning Group
9v5679 Wiring Group-Power Train-Part 1 Of 2
9v5679 Wiring Group-Power Train-Part 2 Of 2
7v5118 Wiring Group-Primary Supplemental Steering
7V***18Wiring Group; Supplemental Steering Wiring Group1
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8v9690 Front Wiring Gp
7v3658 Rear Wiring Group
Steering And Braking System
3v6327 Air Horn Group
9t2333 Fitting & Pump Gp-U S Usage
03***42Elbow Hose Assembly To4
3J***07Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve4
9T***86Pump Group-Metering; Pump Gp-Eaton Corporation1
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9t2332 Fitting & Pump Gp-Japan Usage
3K***60Seal Pilot Manifold On; Seal To Boom Check Valve Drain4
4T***87Pump Group-Metering; Pump Gp - Eaton Corporation1
7D***84Elbow (45 Degrees)4
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9t2331 Fitting & Pump Gp-Gosselies Usage
3K***60Seal Pilot Manifold On; Seal To Boom Check Valve Drain4
6C***70Pump Group-Metering1
7D***84Elbow (45 Degrees)4
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4t7567 Valve Group
9t1866 Valve Gp-Steering
9t2120 Valve Gp-Steering
4t2513 Valve Group
9t2119 Valve Gp-Steering
9T***19Valve Group-Steering; (Steering)1
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4t2511 Steering Valve Gp
4T***11Valve Group-Steering; (Steering)1
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7v0094 Air Dryer Group-Part 2 Of 2
7v0094 Air Dryer Gp-Part 2 Of 2
7v0094 Air Dryer Gp-Part 1 Of 2
7v0094 Air Dryer Group-Part 1 Of 2
4v4893 Hydraulic Caliper Service Brake Group
4V***93Brake Group-Hydraulic Caliper Service1
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3v6317 Brake Gp-Parking
9c0149 Column Gp-Adjustable Steering-Part 1 Of 2
9C***49Column Group-Adjustable Steering1
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9c0149 Column Gp-Adjustable Steering-Part 2 Of 2
9C***49Column Group-Adjustable Steering1
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5v7564 Brake Control Gp-Part 3 Of 4
5v7564 Brake Control Group-Part 3 Of 4
5v7564 Brake Control Gp-Part 1 Of 4
5v7564 Brake Control Group-Part 1 Of 4
5v7564 Brake Control Group-Part 2 Of 4
5v7564 Brake Control Gp-Part 2 Of 4
5v7564 Brake Control Gp-Part 4 Of 4
5v7564 Brake Control Group-Part 4 Of 4
6w0468 Brake Control Gp-Parking & Secondary
6W***68Control Group-Parking Brake; -Secondary1
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6w0468 Control Gp-Brake-Parking & Secondary
6W***68Control Group-Parking Brake; -Secondary1
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9v6112 Control Gp-Steering
6w6336 Control Gp-Steering
5v3752 Air/Hydraulic Cylinder Group
5V***52Cylinder Group-Air Over Hydraulic1
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7v3625 Steering Oil Lines Gp-Part 1 Of 3
7v3625 Lines Gp-Steering Oil-Part 2 Of 3
7v3625 Lines Gp-Steering Oil-Part 1 Of 3
7v3625 Steering Oil Lines Gp-Part 2 Of 3
7v3625 Lines Gp-Steering Oil-Part 3 Of 3
7v3625 Steering Oil Lines Gp-Part 3 Of 3
6w7739 Lines Gp-Supplemental Steering
6W***39Lines Group-Supplemental Steering; Supplemental Steering Lines Group1
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7v3620 Supplemental Steering Lines Group-Part 1 Of 2
7V***20Lines Group-Supplemental Steering; Supplemental Steering Lines Group1
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7v3620 Supplemental Steering Lines Gp-Part 2 Of 2
7V***20Lines Group-Supplemental Steering; Supplemental Steering Lines Group1
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5v8945 Mounting And Pump Group-Supplemental Steering
5V***45Pump & Mounting Group; Mounting And Pump Group1
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7j8199 Gear Pump Group
6c0570 Metering Pump Gp
4t7387 Pump Gp-Metering
4T***87Pump Group-Metering; Pump Gp - Eaton Corporation1
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9t5744 Pump Gp-Metering
9t0086 Metering Pump Group-Steering
9T***86Pump Group-Metering; Pump Gp-Eaton Corporation1
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9t2334 Pump Gp-Metering
9T***31Pump & Fitting Group; Fitting & Pump Gp-Danfoss Corporation1
9T***32Pump & Fitting Group; Fitting & Pump Gp-Eaton Corporation1
9T***33Pump & Fitting Group; Fitting & Pump Gp-Eaton Corporation1
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4v1221 Supplemental Steering Arrangement
4V***21Steering Ar-Supplemental1
4V***05Valve & Mounting Group; Mounting And Valve Group1
5V***45Pump & Mounting Group; Mounting And Pump Group1
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8v1183 Column Gp-Adjustable Steering-Part 2 Of 2
8V***83Steering Column Group-Adjustable1
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8v1183 Column Gp-Adjustable Steering-Part 1 Of 2
8V***83Steering Column Group-Adjustable1
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8v1183 Adjustable Steering Column Gp-Part 1 Of 2
8V***83Steering Column Group-Adjustable1
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8v1183 Adjustable Steering Column Gp-Part 2 Of 2
8V***83Steering Column Group-Adjustable1
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4v4205 Mounting And Valve Group-Diverter-Supplemental Steering
4V***05Valve & Mounting Group; Mounting And Valve Group1
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4d2287 Valve Assembly
4v4154 Brake Foot Control Valve Assembly
4V***54Valve As-Brake; -Parking, Service1
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3k5586 Valve Assembly
4v6682 Air Control Valve Group
9v1541 Check Valve Group
9V***41Valve Group-Check; -Brake Air Relay1
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9v0476 Check Valve Group
9V***76Valve Group-Check; Check Valve Group-Wagner Electric Corp1
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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
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4t7568 Diverter Valve Group
8j0508 Neutralizer Valve Group
8J***08Valve Group-Neutralizer; (Neutralizer)1
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4t2510 Valve Group-Neutralizer
4T***10Valve Group-Neutralizer; (Neutralizer)1
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9t1486 Valve Group-Pressure Reducing-Steering
9T***86Valve Group-Pressure Reducing; (Press. Reducing)1
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IT28 serial number reference

The PIN plate on the IT28 is riveted to the frame, typically on the right-hand side near the front frame rail or articulation hitch area (some units also carry a duplicate plate at the operator's step or dash). Read the first three characters as the alphanumeric serial prefix, which identifies the model/generation and build series; the digits that follow are the sequential unit number within that prefix run. Always match the full PIN against the plate, not just a partial number stenciled elsewhere on the machine.

PrefixIdentifies
2KCIT28 Integrated Toolcarrier, original (base) generation

Frequently asked questions

What engine powers the Caterpillar IT28?

The base IT28 uses the Cat 3204, a naturally aspirated 4-cylinder, 4.4 liter mechanical diesel with mechanical fuel injection and no electronic engine control. Later machines in the same line used different engines: the IT28B added a turbocharger to the same 3204, the IT28F used the 3116 turbo diesel, and the IT28G used the electronically controlled 3056E.

What is the operating weight of the Caterpillar IT28?

Operating weight for the base IT28 is documented at approximately 9,560 kg (21,076 lb). Treat this as an approximate figure since it depends on tire choice, counterweight, and the work tool mounted; confirm the exact figure for your unit's configuration with a dealer or the operation and maintenance manual.

What replaced the Caterpillar IT28?

The IT28 was followed by the IT28B, which kept the same 3204 block but added a turbocharger for more power. Caterpillar then moved to the 3116 turbo diesel for the IT28F, and finally to the electronically controlled 3056E for the IT28G, the last generation of this integrated toolcarrier line.

What IT28 owners discuss

What powertrain behavior do owners and mechanics report on the base IT28?
The base IT28 (2KC-prefix machines) runs the mechanical Cat 3204 diesel through a torque-converter powershift transmission, no electronic controls involved. Reports on this drivetrain type generally trace low torque-converter pressure and delayed or harsh forward/reverse engagement to a worn charging pump or worn clutch packs, not a bad converter itself - pump output and clutch pressure should be checked before the converter gets condemned. The shift-control lever contacts see heavy daily use and wear out, which shows up as intermittent or sluggish shifting that looks electrical but is actually a worn lever contact. Specific IT28 forum volume is thin; this reflects general knowledge for this drivetrain family as much as IT28-specific threads. If a machine won't hold neutral or lurches on shift, have your dealer verify the transmission neutralizer and shift-control circuit before returning it to service.
How does the IT28's loader linkage and hydraulics behave compared to a standard wheel loader?
The IT28 uses parallel-lift toolcarrier linkage rather than the Z-bar linkage on Cat's standard wheel loaders. Operators consistently describe less breakout force in the pile and note the bucket needs manual leveling as it's raised, since parallel lift doesn't self-level like Z-bar. That's normal behavior for this linkage type, not a fault - it's the tradeoff for running forks and other work tools off one quick-coupler head. On the hydraulic side, weak or absent lift/tilt response at low idle that clears up as rpm comes up points to a relief valve or control-valve spool sticking, not a failing pump outright. Multiple steering cylinders are typical on these machines; if one develops internal leakage it can rob pressure from the other and cause a no-steer or weak-steer complaint on both sides at once.
What wear patterns show up on the IT28's chassis and running gear?
As a center-articulated wheeled toolcarrier, the components owners and shops flag most are the steering cylinders, the center-articulation pins and bushings, and the coupler/tool-lock cylinder. IT-series toolcarriers carry more pins and bushings than a fixed-bucket loader because of the extra coupler and lift-arm geometry, so expect more grease points and, over years of use, more pin and bushing replacement than an equivalent standard loader. Uneven or accelerated tire wear on these machines is usually a byproduct of tight-radius articulated turning in yard or curb work rather than an alignment problem. Coupler cylinder wear (retaining ring and rod-guide seal condition) is a recurring rebuild item reported for this machine. Have your dealer verify steering-cylinder cross-leakage and articulation-pin play if you notice pulling to one side or looseness in a turn.
What quirks come with the IT28's 3204 mechanical diesel specifically?
The IT28's 3204 is a pre-electronic, mechanically governed engine - no ECM, no stored fault codes, nothing to plug a scan tool into. Diagnosis on this engine is entirely mechanical: fuel delivery, compression, and the physical condition of the governor and injection pump. A recurring complaint on mechanical 3204/inline-pump engines of this era is the injection pump and governor housing gumming up from degraded or contaminated fuel, leaving the fuel rack or governor shaft sticking - this presents as rough or no-start, surging at speed, or persistent black smoke that doesn't clear up after a filter change. A dried or cracked governor shaft seal is another commonly cited source of internal fuel leakage in the pump housing. Because there's no electronic throttle to fall back on, hard starting and black smoke on this engine should be chased through injectors and pump timing first, not sensors - zero fault codes on this engine is expected, not a red flag.
What electrical or sensor issues turn up on these machines?
Because the engine and transmission predate electronic controls, the IT28's electrical system is limited to charging, lighting, gauges, and mechanical sending units for oil pressure and coolant temperature - there's no engine-monitoring module to interrogate for codes. On higher-hour machines, the electrical complaints that recur are corroded harness connectors, failed sending units producing false gauge readings, and worn contacts inside the transmission shift-control lever causing intermittent shift response. These should be chased with a basic continuity and ground check at the sender and instrument panel before gauges or harness sections get replaced wholesale.
What do operators say about the IT28 compared to a standard wheel loader like the 928?
Community opinion is mixed and often lukewarm. The IT28 was aimed at municipal and utility-type work using a quick-coupler head with multiple work tools, not production digging in a pit or quarry. Operators consistently note it's slower on cycle times than a same-class fixed-bucket loader because its hydraulics also have to serve fork and work-tool duty, and several describe it as underpowered for its size next to a dedicated loader. The upside cited is versatility - one machine covers loader, fork, and various mounted attachments reasonably well without excelling at any single task, at the cost of more wear points (coupler, extra linkage pins) than a standard loader.
What should I check before buying a used base-model IT28?
Given this machine's age, treat the engine like any decades-old mechanical diesel: check for hard starting, excessive cranking, or heavy black smoke that could indicate a gummed or worn injection pump/governor or worn injectors, and confirm compression is reasonable. Cycle the loader linkage and coupler through full range and watch for delayed or weak lift/tilt response at idle versus at working rpm - a sign of a relief valve or spool issue rather than a dying pump. Test steering fully in both directions at idle and at rpm, and check each steering cylinder independently for internal leakage. Inspect the center-articulation pins and bushings for play and confirm the coupler/tool-lock engages and releases smoothly. Ask for whatever maintenance history exists, but for a machine this old, weigh the hour meter against physical wear evidence (tires, pins, seat, pedals, paint over wear surfaces) rather than trusting hours alone. Have your dealer or a qualified tech verify transmission/torque-converter charge pressure and steering-circuit relief settings before you commit to purchase.

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

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