Caterpillar 953B
Caterpillartrack-type loadertrack loader

Caterpillar 953B

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar 953B is a mid-size track-type loader in Cat's 953 family, built for loading, stockpile work, and site prep on ground too soft or rough for a wheeled loader. It replaced the original 953 and adds a Cat 3116 turbocharged inline-six diesel rated around 88 kW (118-120 hp), up from the smaller 3204 four-cylinder used in the earlier 953. Operating weight runs about 14.4 t (31,800 lb) in standard configuration, more or less depending on bucket, counterweight, and track-shoe width. Cat built the 953B through the first half of the 1990s, exact years vary by source and market, before the 953C took over the line. Power reaches the tracks through a hydrostatic drivetrain, with each track running its own variable-displacement pump-and-motor circuit for infinitely variable ground speed and tight-radius turns. Standard and low-ground-pressure undercarriage configurations were offered across the 953 series to suit soft or rocky ground.

The step from 953 to 953B centers on the engine swap: the turbocharged 3116 six-cylinder trades the older four-cylinder's simplicity for more flywheel power and a broader torque band, useful in quarry and heavy stockpile duty. The Z-bar loader linkage, oscillating undercarriage, and dual hydrostatic drive circuits carried over largely unchanged from the 953, so wear patterns and service points stay familiar across both machines. On the used market, 953B units are valued for a stronger drivetrain than the base 953 and a simpler, more serviceable design than later electronic-control machines. Parts support remains solid through Cat dealers and the aftermarket, covering engine, undercarriage, final drive, and hydrostatic components, which keeps the 953B a practical rebuild-and-run candidate for buyers who want predictable maintenance costs over the newest emissions tier.

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 953B specifications

Engine

Engine modelCat 3116 turbocharged inline-six diesel, tied to 953B production units carrying serial prefix 5MK (engine reference 4TF). Some references show the predecessor 953's 3204 four-cylinder engine under the 953B name; that figure belongs to the earlier plain 953, not the B-series.
Rated power120 hp (89 kW) flywheel.
DisplacementAbout 6.6 L (403 cu in), matching the Cat 3116 engine family used in this loader.
Aspiration / fuel systemTurbocharged, direct injection diesel.
EmissionsBuilt in the pre-emissions-tier era (mid-1980s to mid-1990s production window). No EPA or EU emissions tier rating applies.

Weights

Standard operating weight31,800 lb (14,425 kg) for the 953B standard configuration.
Configuration coverageOnly a single standard configuration is documented for the 953B. No factory XL trim is documented for this loader line. A low ground pressure (LGP) version with a 71 in (1,800 mm) track gauge exists for the earlier plain 953; a distinct 953B LGP variant is not clearly documented, so treat LGP figures as base-953 data unless confirmed otherwise.

Dimensions

Overall length (bucket on ground)19 ft 3 in (5,867 mm).
Overall width (over tracks)7 ft 10 in (2,388 mm) for the standard 953B. One source pairs a narrower 7 ft 2 in (2,180 mm) width with the mismatched 3204-engine data noted above under Engine; treat that narrower figure as unverified for the B-series.
Overall height (to cab/ROPS)10 ft 1 in (3,078 mm).
Track gauge71 in (1,800 mm), reported for this platform.
Ground clearanceAbout 14.9 in (378 mm) reported, but this figure may reflect the earlier base-953 configuration rather than the 953B specifically — not independently confirmed. Verify with your dealer.
Track shoe widthAbout 15 in (380 mm) reported; like ground clearance above, this may reflect the earlier base-953 configuration rather than confirmed 953B data. Verify against the specific unit before relying on it.

Performance

Travel speedHydrostatic drive, infinitely variable with no discrete gears. Top travel speed is about 6.5 mph (10.5 km/h), essentially symmetrical forward and reverse, typical of hydrostatic track loaders in this class.
Drawbar pullNot documented in available sources for the 953B. Check the Cat 953B service/shop manual or a dealer for a tractive-effort rating.
GradeabilityNot documented in surveyed sources for this model.
Ground pressureNot confirmed specifically for the 953B. Related family members in this size class run roughly 10 to 11.5 psi (70 to 80 kPa) on standard shoes, with LGP versions dropping to roughly 6 to 6.5 psi (40 to 45 kPa) on wider shoes. Treat as indicative only and verify against the exact shoe width fitted.

Bucket / Attachment Capacities

Bucket / attachment typeGeneral-purpose loader bucket on a Z-bar linkage. This is a track-type loader, not a dozer, so there are no S/SU/A/VPAT blade options for this model.
Heaped bucket capacity2.25 cu yd (1.7 cu m) for the standard general-purpose bucket.
Alternate capacity figuresOther sources list roughly 2.0 cu yd (1.5 cu m) heaped and 1.7 cu yd (1.3 cu m) struck for this size class. Bucket capacity varies with edge and tooth configuration; treat the range as approximate rather than a single fixed number.

Service Capacities

Fuel tankAbout 53 US gal (200 L) reported for this loader platform. Not separately broken out by B-suffix in available sources, so treat as approximate.
Hydraulic systemAbout 15.4 US gal (58 L) per one source, not independently confirmed for the 953B specifically.
Engine oil (crankcase, with filter)Not documented in surveyed sources for the 3116-powered 953B. Refer to Cat 3116 engine service literature for the refill spec.
Cooling systemNot documented in surveyed sources for the 953B. Refer to the shop manual for the coolant refill capacity.

Identification / Production

Production spanSources vary. One source lists 1987 to 1996 for the 953B nameplate; several dealer and parts sources describe the 953B as introduced around 1992, succeeding the original 953, which carried the Cat 3204 engine into the early 1990s in some markets.
Serial prefixMachine serial prefix 5MK is documented on dealer-listed 953B units; the 3116 engine on those same units carries a 4TF engine reference.
LineageDirect successor to the original Cat 953 (3204 engine, four-cylinder). Superseded by the 953C.

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

953B fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)Not documented in accessible sources for this exact model/serial range — capacity varies with sump configuration; verify against your OMM or with a Cat dealer. Engine is the Cat 3116 turbocharged inline-6 (about 89 kW / 120 hp gross). Note the generational split: the original 953 (pre-1987/92) ran a Cat 3204; the later 953C moved to a Cat 3126/3126B.Cat DEO (Diesel Engine Oil), API CD/CF-4 grade. Viscosity by ambient temperature: SAE 10W-30 for roughly -18°C to 40°C (0°F to 104°F); SAE 15W-40 for roughly -9.5°C to 50°C (15°F to 122°F). Pick the heaviest grade suited to your coldest expected start-up temperature.
Cooling systemNot documented in accessible sources for this model; verify against your OMM or with a Cat dealer.Cat ELC (Extended Life Coolant) or Cat DEAC (Diesel Engine Antifreeze/Coolant), mixed for the expected ambient range. Do not mix coolant types or brands in the system.
Fuel tank192 L (50.8 US gal). This figure is consistent across the base 953 chassis, the 953B, and the 953 LGP variant.No. 2-D diesel fuel for normal ambient temperatures; switch to No. 1-D or a winter-blend diesel in cold climates to prevent fuel waxing/gelling.
Hydrostatic drive system (dual-circuit, one per track)Not documented in accessible sources for this model; verify against your OMM or with a Cat dealer.Cat TDTO (Transmission and Drive Train Oil). Viscosity by climate: SAE 10W in cold ambient conditions, SAE 30 in warm climates, per standard Cat TDTO grade selection.
Final drives (each)Not documented in accessible sources for the 953B specifically; capacity varies by configuration/series — verify against your OMM or with a Cat dealer.Cat TDTO.
Hydraulic system / tank58.3 L (15.4 US gal). Consistent across the base 953 chassis, the 953B, and the 953 LGP variant. The later, heavier 953C generation uses a different tank size.SAE 10W hydraulic oil; Cat TDTO is listed as an acceptable alternative for the implement hydraulic system on this loader family.
Pivot shaftGrease-lubricated joint, not a sump/fill capacity.Cat MPGM (Multipurpose Grease Medium), NLGI 2, moly-fortified EP grease, applied with a hand grease gun at scheduled service intervals.
Grease — chassis pins, bushings, equalizer barN/A — service item, no sump capacity.Cat MPGM (Multipurpose Grease Medium), NLGI 2 grade with molybdenum disulfide additive package, for lift-arm pins, bucket-linkage bushings, and equalizer bar joints.

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

Caterpillar 953B maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and top off as needed.
  • Check coolant level at the sight gauge or recovery tank.
  • Drain water and sediment from the fuel system water separator.
  • Walk around the machine and inspect for fluid leaks, loose fasteners, and undercarriage damage.
  • Check track tension weekly and inspect pads and grousers for wear.
  • Grease the Z-bar loader linkage and bucket pivot pins weekly.
Every 250 h
  • Change engine oil and filter.
  • Pull an engine oil sample for analysis.
  • Inspect and clean or replace the primary air filter element.
  • Check and adjust alternator and fan belt tension.
  • Grease all chassis and linkage points not covered in the weekly service.
  • Check battery electrolyte level and terminal condition.
Every 500 h
  • Replace the hydraulic system oil filter.
  • Replace the fuel filter element.
  • Pull a coolant sample and check coolant condition.
  • Check final drive oil level and top off as needed.
  • Inspect undercarriage rollers, idlers, and sprockets for wear; adjust track tension.
Every 1,000 h
  • Change the hydrostatic drive system oil and filter.
  • Change the final drive oil.
  • Replace the secondary fuel filter and air filter elements.
  • Check and adjust engine valve lash.
  • Inspect the turbocharger for shaft play, oil leaks, and boost-side wear.
Every 2,000 h
  • Change the hydraulic tank oil.
  • Test fuel injectors and check injection timing.
  • Inspect the crankshaft vibration damper.
  • Re-torque or replace worn loader linkage pins and bushings.
  • Flow-test the hydrostatic pump and drive motor for internal wear.
Every 4,000 h
  • Drain, flush, and refill the cooling system with fresh coolant.
  • Rebuild or exchange the hydrostatic pump and drive motor as a matched set at major overhaul.
  • Replace worn undercarriage components, track chain, rollers, idlers, and sprockets, as a set once wear limits are reached.
  • Overhaul or replace the turbocharger at major engine overhaul.
  • Rebuild the Z-bar loader linkage bushings and pins.

Servicing the 953B beyond the schedule

Predictive Maintenance & Fluid Analysis

Pull an engine oil sample at every 250-hour service to track wear metal and soot loading in the 3116's turbocharged cylinders, catching ring or injector wear before it costs a rebuild. Sample hydrostatic system oil regularly too; contamination or additive breakdown in either drive circuit shows up as sluggish steering response or heat buildup long before a pump or motor fails outright. Check coolant condition at 500-hour intervals to catch cavitation corrosion around the wet cylinder liners early.

Corrective & Common Repairs

953B fuel systems trap air readily after running a tank dry; expect a hard-starting or bogging engine until the lines are bled properly at the filter and injection pump. Watch for head gasket failures on the turbocharged 3116, a known weak point that shows up as coolant loss or white exhaust smoke under load. Hydrostatic drive motor and final drive seals are the other common leak points; inspect them at every walk-around rather than waiting for a puddle under the machine.

Overhaul & Rebuild Points

Z-bar loader linkage pins and bushings wear steadily under repeated bucket cycling; budget for bushing replacement before slop shows up in the lift or tilt action. At major overhaul, rebuild or exchange the hydrostatic pump and drive motor together, since a worn side changes loading on the other and shortens its life too. Undercarriage parts, track chain, rollers, idlers, and sprockets, wear as a set; measure and replace them together to keep tension and tracking correct.

Seasonal & Environment Servicing

Cold-climate starts on the 3116 benefit from block heaters and cold-weather-rated fuel; gelled fuel is a common no-start complaint once temperatures drop. Check coolant freeze protection before winter, the wet-liner engine is sensitive to cavitation if concentration runs weak. In hot, dusty work, clean the radiator and hydraulic oil cooler cores often, the hydrostatic system runs hotter than a torque-converter loader and needs clear airflow. Loosen track tension in wet, muddy ground and tighten it for rocky or hard-pack sites to control wear.

953B common service parts

Part numberPart
4P-6379FilmCheck fitment →
4P-8681Film IdentificationCheck fitment →
6V-2679FilmCheck fitment →

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953B fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
Coolant Temperature Gauge – High (red band + warning lamp)Engine coolant temperature has climbed into the gauge's red warning range, and a paired warning lamp lights with it.Low coolant level, radiator core or fin blockage, a slipping or damaged fan drive, a weak thermostat, or a faulty temperature sender.Idle down and shut off safely, let the engine cool, check coolant level and radiator fins for debris, and verify the fan belt and drive before restarting.
Pump Drive (HPCU) Oil Temperature – HighHydrostatic Power Control Unit oil temperature, shown on its own gauge with a matching warning lamp, has gone above the normal operating range.Low HPCU oil level, a plugged transmission oil cooler, a worn charge pump, or sustained heavy-load operation.Reduce load and let the machine idle to cool, check HPCU oil level and cooler for restriction, and inspect charge pump output if the lamp returns.
Hydraulic Tank Oil Temperature – HighImplement hydraulic system oil temperature is above the normal band on the gauge and warning lamp.Low hydraulic oil level, a blocked hydraulic oil cooler, a relief valve bypassing early, or extended heavy loader work.Cut back on continuous high-load work, check oil level and cooler fins, and have relief/bypass valves checked if overheating repeats.
Engine Oil Pressure – Low (warning lamp)The oil pressure switch has detected pressure below the safe minimum; the lamp lights, often with a buzzer.Low oil level, a worn oil pump, a plugged oil filter, or a faulty pressure switch.Shut the engine down immediately, check oil level, and inspect the filter and pressure switch before any restart.
Charging System / Alternator – Low Output (warning lamp)Charging voltage has dropped below normal with the engine running, so the lamp stays lit instead of going out after start-up.Worn alternator brushes or regulator, a loose or broken drive belt, or corroded battery and ground connections.Check belt tension and condition, clean and tighten battery and ground connections, then bench-test or replace the alternator if output stays low.
Fuel Level – Low (gauge)The fuel gauge needle sits in the lower portion of its range.Normal fuel use approaching empty, or an inaccurate reading from a failing sender.Refuel, and if the gauge behaves erratically or reads empty right after a fill-up, check the sender and its wiring.

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

953B attachments & work tools

Blades (S/SU/A/VPAT)

The 953B is a bucket-based track-type loader; period Cat literature for this model does not use the dozer-style S/SU/A blade classification found on D-series crawler tractors. A 6-way angling, VPAT-style dozer blade was offered as a work tool across this size class of Cat track loader and is documented on the related 963 platform; exact blade width/tilt range for the 953B itself is not confirmed in available literature, so verify against the parts book for a given serial range. The standard work tool stayed a general-purpose bucket rated around 1.5 m3 (2.0 yd3) heaped, varying with cutting-edge style and track/shoe width.

Rippers

A multi-shank parallelogram ripper (two lift/tilt cylinders, three shank pockets) is the documented ripper option shared across the 953, 953B and 953C track loaders, weighing roughly 0.6 t (about 1,300 lb / 0.66 ton). No single-shank ripper is documented for this loader; single-shank designs are typical of larger dozer classes (D7-D9) rather than this track-loader family. Mounting is rear-frame, pinned to the main frame independent of the front loader linkage.

Winches

No factory-specific winch pairing for the 953B turned up in available parts or spec literature. Elsewhere in the Cat track-loader line, winch fitment tracks the dozer-chassis class a loader shares running gear with (the larger 983, for example, pairs with a D7/D8-class winch off its shared D8 back end); by that pattern a 953B on a D5/D6-class undercarriage would take a correspondingly smaller-class winch on a compatible drawbar, but this is not directly documented for the 953B specifically — verify against the parts book or a dealer for the serial range in question.

Drawbars / counterweights

Used 953B machines are commonly listed with a rear drawbar/pintle hitch as a factory or dealer-installed option, used for towing and as the mounting point for a rear-hung ripper. No separate bolt-on counterweight package is documented for this model; a rear ripper or drawbar attachment itself partly offsets the front loader arm and bucket load rather than a dedicated counterweight casting.

Cab / ROPS guarding (forestry/waste)

Standard cab is a pressurized, sound-suppressed ROPS/FOPS structure with tinted glass, a sliding side window, and filtered/pressurized cab air — built to the rollover and falling-object protection standards current for its era. Dedicated forestry-mulching or landfill/waste-handling guard packages (screened glass, belly pans, striker bars, hose guarding) are not called out as a distinct factory 953B option in available literature; on this size of loader those packages are typically dealer- or aftermarket-fitted for demolition, forestry, and waste-handling work.

Hydraulic arrangement (front/rear tools)

Front loader hydraulics use a Z-bar linkage: dual lift cylinders raise the arms and a single tilt cylinder acts through the Z-bar bellcrank, giving higher bucket breakout force than a straight-tilt linkage. Rear-mounted tools such as the multi-shank ripper run on a separate rear hydraulic circuit, with two cylinders pinned to the main frame to raise and lower the tool independent of the front loader circuit. Reservoir and pump sizing specific to the 953B are not documented in available sources — confirm against the machine's own spec sheet before service work.

All 953B assemblies by section

Every catalogued assembly group for the Caterpillar 953B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
6i1517 Air Cleaner Gp
6i4769 Air Cleaner Gp
6i2278 Cartridge Gp-Turbocharger*R
4p4686 Cartridge Gp-Turbocharger*R
1n4877 Cover Gp-Inlet Manifold
6i1518 Lines Gp-Air
1w6029 Lines Gp-Air
4p7703 Lines Gp-Turbocharger Oil
4P***03Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group1
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7w9248 Manifold Gp-Exhaust
7W***48Manifold Group-Exhaust; Exhaust Manifold Group1
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4w3480 Manifold Gp-Inlet
4W***80Manifold Group-Inlet; Inlet Manifold Group1
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6i1716 Muffler Gp
1068762 Pipe Gp-Exhaust
1028409 Turbocharger Gp
1051549 Turbocharger Gp
Basic Engine
2w9608 Camshaft Gp-Single
4w3462 Carrier Gp-Seal
4W***62Carrier Group-Seal; Carrier Group (Seal)1
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4p0512 Cover Gp-Cylinder Block
4P***12Cover Group-Cylinder Block; Cylinder Block Cover Group1
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7l0004 Cover Gp-Front
7L***04Cover Group-Front; (Front Housing)1
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7c5033 Cover Gp-Sound Suppression
9y1224 Cover Gp-Sound Suppression
9Y***24Cover Group-Valve Mechanism; (Sound Suppression)1
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4w2172 Cover Gp-Valve Mechanism
4W***72Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
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4w2197 Crankshaft Gp
4W***97Crankshaft Group; Crankshaft Group1
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7c5826 Cylinder Block Gp
2w9746 Cylinder Block Gp*R
1308997 Cylinder Head As
4p5125 Cylinder Head As
1077592 Cylinder Head As*R
1192923 Cylinder Head As
7e4207 Cylinder Head As*R-Swirl
1192922 Cylinder Head As
1154158 Cylinder Head As*R
7e4204 Cylinder Head Gp*R-Swirl
1192969 Cylinder Head Gp
7e4203 Cylinder Head Gp-Swirl
1192968 Cylinder Head Gp*R
1109523 Damper & Pulley Gp
4p5812 Damper & Pulley Gp
7c0044 Drive Gp-Fan
7C***44Drive Group-Fan; Fan Drive Group1
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6i1077 Flywheel Gp
1154175 Gear Gp-Front
2w8475 Gear Gp-Front
2W***75Gear Group-Front; Front Gear Group1
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9y0054 Housing Gp-Flywheel
7l0002 Housing Gp-Front
4w2515 Lifting Gp
3w3522 Lifting Gp-Eye
3w2572 Lifting Gp
6i2022 Mounting Gp-Engine & Transmission
6I***22Mounting Group-Engine & Transmission1
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4w0269 Pan Gp-Oil
7e3429 Piston & Rod Gp
7E***29Piston & Rod Group; Connecting Rod And Piston Group1
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4w5429 Pulley Gp-Crankshaft
4W***29Pulley Group-Crankshaft; Crankshaft Pulley Group1
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6i2020 Pulley Gp-Fan Drive
7c6077 Rocker Arm Gp-Valve
1077722 Rocker Arm Gp-Valve
4w1016 Seal Gp-Crankshaft
1154203 Seal Gp-Crankshaft
1035846 Support Gp-Engine
2w9607 Valve Mechanism Gp
2W***07Valve Mechanism Group; Fuel Pump And Valve Mechanism Group1
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4p4372 Valve Mechanism Gp
2w9607 Valve Mechnism Gp
2W***07Valve Mechanism Group; Fuel Pump And Valve Mechanism Group1
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Cooling System
8y9689 Cooler Ar-Hydraulic Oil-Implement
1N***48Core As-Hydraulic Oil Cooler1
8Y***89Cooler Ar-Hydraulic Oil-Implement1
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1006269 Cooler Gp-Engine Oil
4p8184 Cooler Gp-Engine Oil
4P***84Cooler Group-Engine Oil; Engine Oil Cooler Group1
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1w9529 Cooler Gp-Hydraulic Oil
1W***29Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
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8n0440 Cooler Gp-Transmission Oil
8y9700 Cooling Ar-High Temperature
1N***48Core As-Hydraulic Oil Cooler1
8Y***00Cooling Ar-High Temperature1
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7c6998 Drive Gp-Water Pump-Belt
7C***98Drive Group-Water Pump; Water Pump Drive Group1
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1026344 Fan Gp-Blower
8y9147 Lines Gp-Hydraulic Oil Cooler
8Y***47Lines Group-Hydraulic Oil Cooler1
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7c1567 Lines Gp-Water
1110526 Lines Gp-Water
6n7450 Mounting Gp-Radiator & Transmission Cooler
6N***50Mounting Group-Rad & Tmsn Cooler1
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7c6438 Pump Gp-Water
7c7030 Pump Gp-Water
7C***30Pump Group-Water; Water Pump Group1
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1261693 Radiator As
6i2021 Radiator Gp
Electrical System
1076689 Lamp Gp-Flood
10***89Lamp Group-Flood; -Vertical Mount1
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9x6775 Lamp Gp-Flood
9x1439 Lamp Gp-Flood
9X***39Lamp Group-Flood; -Rear-Ladder Access-Engine Work Light1
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9x6774 Lamp Gp-Flood
9X***74Lamp Group-Flood; -Suspended Mount1
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1068964 Lamp Gp-Flood
10***64Lamp Group-Flood; -Suspended Mount1
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9g9813 Alarm Gp
9G***13Alarm Group; -Action-Action, Engine Overspeed1
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1003343 Alternator Gp-Charging
5s9088 Alternator Gp-Charging*R
3E***78Alternator Group-Charging; Charging Alternator Group (Delco Remy)1
5S***88Alternator Group-Charging1
6T***23Alternator Group-Charging; Alternator Group-Nippondenso -- 24 Volt, 50 Ampere1
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1005047 Alternator Gp-Charging*R
10***45Alternator Group-Charging; (Nippondenso)1
10***46Alternator Group-Charging; -24-Volt, 50-Ampere1
10***47Alternator Group-Charging; -24-Volt, 50-Ampere1
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6t7223 Alternator Gp-Charging
6T***23Alternator Group-Charging; Alternator Group-Nippondenso -- 24 Volt, 50 Ampere1
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3e7578 Alternator Gp-Charging*R
3E***78Alternator Group-Charging; Charging Alternator Group (Delco Remy)1
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1005045 Alternator Gp-Charging
10***45Alternator Group-Charging; (Nippondenso)1
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9g9538 Alternator Gp-Charging
1005046 Alternator Gp-Charging*R
10***46Alternator Group-Charging; -24-Volt, 50-Ampere1
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1077977 Alternator Gp-Charging*R
10***77Alternator Group-Charging; (24 Volt-70 Amp)1
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1322156 Alternator Gp-Charging
100343 Alternator Gp-Charging
8y9156 Battery & Wiring Gp- Part 1 Of 2
8y9156 Battery & Wiring Gp-Part 2 Of 2
8y9156 Battery & Wiring Gp-Part 1 Of 2
8r8714 Battery Gp
8R***14Battery Group; -Maintenance Free1
9X***04Battery-Maintenance Free; (12 Volt)(900 Amp)2
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3e6389 Lamp Gp-Dome
3E***89Lamp Group-Dome; -With Switch-Cab, Rh, Lh1
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8y9311 Lighting Gp
8y9650 Lighting Gp-2 Lamp
8y9312 Lighting Gp-4 Lamp
1109166 Lighting Gp-4 Lamp
1130976 Modification Gp
7c4028 Solenoid Gp-Shutoff
8y9166 Starting Aid Gp-Ether
3e1944 Starting Motor Gp-Electric
6v5720 Starting Motor Gp-Electric
6V***20Starting Motor Group-Electric; (Electric)1
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8c4773 Starting Motor Gp-Electric
8C***73Starting Motor Group-Electric; Starting Motor Group (Robert Bosch)1
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3e2298 Starting Motor Gp-Electric
3E***98Starting Motor Group-Electric; Starting Motor Group (Delco Remy)1
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1047040 Starting Motor Gp-Electric
10***40Starting Motor Group-Electric1
10***57Starting Motor Group-Electric; Electric Starting Motor Group (Robert Bosch)1
6V***20Starting Motor Group-Electric; (Electric)1
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1068557 Starting Motor Gp-Electric
10***57Starting Motor Group-Electric; Electric Starting Motor Group (Robert Bosch)1
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8c4774 Starting Motor Gp-Electric*R
3E***44Starting Motor Group-Electric1
8C***73Starting Motor Group-Electric; Starting Motor Group (Robert Bosch)1
8C***74Starting Motor Group-Electric1
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7c0747 Starting Motor Gp-Electric
7C***47Starting Motor Group-Electric; Starting Motor Group (Electric) (24v)1
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1068558 Starting Motor Gp-Electric*R
10***57Starting Motor Group-Electric; Electric Starting Motor Group (Robert Bosch)1
10***58Starting Motor Group-Electric1
10***59Starting Motor Group-Electric; Electric Starting Motor Group (Delco Remy)1
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9x9995 Starting Motor Gp-Electric
3E***98Starting Motor Group-Electric; Starting Motor Group (Delco Remy)1
8C***73Starting Motor Group-Electric; Starting Motor Group (Robert Bosch)1
9X***95Starting Motor Group-Electric1
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1068559 Starting Motor Gp-Electric
10***59Starting Motor Group-Electric; Electric Starting Motor Group (Delco Remy)1
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1083858 Starting Motor Gp-Electric
7n0718 Switch As-Disconnect
7N***18Switch As-Disconnect; -Battery-Ground Level1
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9g7641 Switch Gp-Start
9G***41Switch Group-Start; -Engine, Key-Vims Service1
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8y9570 Tractor Ar-Special
10***36Film (Warning)1
10***60Tag (Material Control)1
8L***13Strap-Cable(Tie 5.50" Long)1
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8y6495 Warning Gp-Backup
8y6500 Wiring Gp-Console-Part 1 Of 2
8y6500 Wiring Gp-Console-Part 2 Of 2
8y9479 Wiring Gp-Platform-Part 1 Of 2
8y9479 Wiring Gp-Platform-Part 2 Of 2
Engine Arrangement
6i0793 Engine Ar-Part 3 Of 3
10***41Kit-Gasket; (Fuel System)0
3E***78Kit-Gasket; (Front Structure)(Front Structure)0
3E***79Kit-Gasket; (Oil Cooler, Lines)(Oil Cooler & Lines)0
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6i0793 Engine Ar-Part 2 Of 3
10***01Lines Group-Fuel Filter1
10***46Support Group-Engine1
10***49Turbocharger Group1
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6i0793 Engine Ar-Part 1 Of 2
10***43Alternator Group-Charging1
10***69Cooler Group-Engine Oil1
11***23Damper & Pulley Group1
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Frame And Body
8g0149 Brace Gp-Platform
8y9164 Bumper Gp-Rear
8y9592 Enclosure Gp-Engine-Part 1 Of 2
8y9592 Enclosure Gp-Engine-Part 2 Of 2
8y9120 Frame Gp-Loader
8y9116 Guard Gp-Bottom
8g7224 Guard Gp-Front
8y9145 Guard Gp-Radiator
8y9287 Hitch Gp
8y9140 Platform Gp-Tilt
7p6906 Support Gp-Tilt Platform
8y9168 Suppression Ar-Sound
08***17Tack-Fastener4
10***32Plate Group-Certification; (Certification)1
10***50Pulley; (3 Groove)1
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8y9320 Suppression Gp-Sound
7p8908 Tilt Gp-Platform
Fuel System
5g3612 Cap Gp-Protection
5G***12Cap Group-Protection; Fuel Filler Protection Cap Group1
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7w6989 Control Gp-Fuel Injection
7W***89Control Group-Fuel Injection; Fuel Injection Control Group1
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7e9429 Control Gp-Governor
8y9157 Control Gp-Governor
7e8794 Drive Gp-Governor & Transfer Pump
7E***94Drive Group-Gov & Transfer Pump1
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7w4812 Fastener Gp-Governor
7W***12Fastener Group-Governor; Fastener Group(Governor) (~1c K5811)1
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6i2693 Filter Gp-Fuel
6I***93Filter Group-Fuel; Fuel Filter Group (2z F3772-Up)1
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1n3476 Filter Gp-Fuel
4p5798 Governor Gp
4P***41Governor Group-Unit Injector1
4P***98Governor Group1
7W***12Fastener Group-Governor; Fastener Group(Governor) (~1c K5811)1
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1006179 Governor Gp-Unit Injector
4p5741 Governor Gp-Unit Injector
8y9165 Lines Gp-Fuel
7c9651 Lines Gp-Fuel Filter
1006601 Lines Gp-Fuel Filter
7w8434 Lines Gp-Governor Oil
7W***34Lines Group-Governor Oil; Governor Oil Lines Group1
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7e9711 Pump Gp-Fuel Injection
7E***11Pump Group-Fuel Injection; -Unit1
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1w3791 Pump Gp-Fuel Priming
4p8424 Pump Gp-Fuel Priming & Primary Filter
4P***24Pump Group-Fuel Prm & Prim Filter; Fuel Priming Pump And Primary Filter Group1
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8y9144 Tank Gp-Fuel
Hydraulic System
1005510 Cartridge Gp*R
8g0138 Control Gp-Hydraulic
8G***38Control Group-Hydraulic; Hydraulic Hand Control Group1
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8g1708 Control Gp-Mechanical Hydraulic-Part 2 Of 2
8G***08Control Group-Mechanical Hydraulic1
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8g0137 Control Gp-Mechanical Hydraulic-Part 1 Of 2
8G***37Control Group-Mechanical Hydraulic; Mechanical Hydraulic Control Group1
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8g1708 Control Gp-Mechanical Hyd-Part 2 Of 2
8G***08Control Group-Mechanical Hydraulic1
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8g1708 Control Gp-Mechanical Hyd-Part 1 Of 2
8G***08Control Group-Mechanical Hydraulic1
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8g0137 Control Gp-Mechanical Hydraulic-Part 2 Of 2
8G***37Control Group-Mechanical Hydraulic; Mechanical Hydraulic Control Group1
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8g1708 Control Gp-Mechanical Hydraulic-Part 1 Of 2
8G***08Control Group-Mechanical Hydraulic1
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8g2923 Conversion Ar-Field-3 Valve-Front
3G***24Conversion Group-Hydraulic Valve1
6V***36Film-Instruction; (Multipurpose Bucket)(Multi-Purpose Bucket)1
7P***94Lines Group-Attachment; Attachment Lines Group1
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3g0624 Conversion Gp-Hydraulic Valve
3G***24Conversion Group-Hydraulic Valve1
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9t3625 Cylinder Gp-Lift (Chg 05)
1u0418 Cylinder Gp-Tilt (Chg V08)
8g0139 Diverter Valve & Control Gp
8G***39Diverter Valve & Control Group; Diverter Valve And Control Group1
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8g5589 Guard Gp-Lines
8G***89Guard Group-Lines; Tilt Lines Guard Group1
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5g8056 Hydraulic Ar-3 Valve-Front Lines
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
5G***35Lines Group-Front1
5G***37Mounting Group-Attachment1
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8y9113 Hydraulic Ar-3 Valve
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
6V***35Film Instruction-Place On Rh Front Dash1
6V***36Film-Instruction; (Multipurpose Bucket)(Multi-Purpose Bucket)1
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8g3989 Hydraulic Ar-3 Valve Tank
1A***60Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z)4
1P***02Seal-Rectangular 28.83mm(1.136in) Id2
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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8g1012 Hydraulic Ar-3 Valve-Front
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
6V***36Film-Instruction; (Multipurpose Bucket)(Multi-Purpose Bucket)1
7P***94Lines Group-Attachment; Attachment Lines Group1
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8y9606 Hydraulic Ar-Rear Attachment
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
6V***35Film Instruction-Place On Rh Front Dash1
7P***94Lines Group-Attachment; Attachment Lines Group1
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7p1094 Lines Gp-Attachment
7P***94Lines Group-Attachment; Attachment Lines Group1
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5g8059 Lines Gp-Bucket-Part 2 Of 2
5g8059 Lines Gp-Bucket
5g8059 Lines Gp-Bucket-Part 1 Of 2
7p2655 Lines Gp-Front
7P***55Lines Group-Front; Front Attachment Lines Group1
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5g8035 Lines Gp-Front
8y9149 Lines Gp-Lift Cylinder
8y9148 Lines Gp-Pump
8y9146 Lines Gp-Rear Attachment
1u4454 Lines Gp-Ripper
1U***54Lines Group-Ripper; Ripper Lines Group1
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7p2640 Lines Gp-Tilt Cylinder
5g8037 Mounting Gp-Attachment
7p2641 Mounting Gp-Hydraulic Tank
6e5831 Pump Gp-Vane
8y9150 Pump Gp-Vane
3g8142 Tank & Valve Gp-Hydraulic-Part 3 Of 3
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Tank & Valve Gp-Part 1 Of 3
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Tank & Valve Gp-Hydraulic-Part 2 Of 3
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Tank & Valve Gp-Hydraulic-Part 1 Of 3
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Tank & Valve Gp-Part 3 Of 3
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Tank & Valve Gp-Part 2 Of 3
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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9t7301 Valve Gp-Control-Part 1 Of 2
9t7301 Valve Gp-Control-Part 2 Of 2
9j0817 Valve Gp-Control
9j7128 Valve Gp-Diverter
9J***28Valve Group-Diverter; -Auxiliary Front, Rear Lines1
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4t9948 Valve Gp-Pitch Relief
4T***48Valve Group-Pitch Relief; -Secondary Steering1
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9j0460 Valve Gp-Pitch Relief
4T***73Valve Group-Relief; Relief Valve Group-Fluid Control Inc1
4T***96Seal Kit (Service Repair For 9j460)1
4T***48Valve Group-Pitch Relief; -Secondary Steering1
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4t1573 Valve Gp-Relief
4T***73Valve Group-Relief; Relief Valve Group-Fluid Control Inc1
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6e6194 Valve Gp-Relief
9j0458 Valve Gp-Relief
Implements
3g4428 Bit & Cutting Edge Gp
8y9582 Bucket Ar-Multi-Purpose
5G***59Lines Group-Bucket1
8V***70Mounting Group-Cylinder1
8Y***82Bucket Ar-Multi-Purpose1
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8y9101 Bucket As-General Purpose
8Y***01Bucket As-General Purpose; -Flush Mounted Teeth1
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8y3833 Bucket As-General Purpose
8y3832 Bucket As-General Purpose
8y9100 Bucket As-General Purpose
8y9583 Bucket Gp-Multi-Purpose
8g5552 Control Gp-Bucket
8y9245 Cover Gp-Bumper Replacement
3g5128 Cylinder & Mounting Gp
9v8168 Cylinder & Seal Gp
4t9387 Cylinder Gp (Chg 01, 02)
3g1296 Cylinder Gp (Chg X05)
7t9325 Edge Gp-Cutting
7T***25Edge Group-Cutting; Cutting Edge Gp1
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8v7370 Mounting Gp-Cylinder
3g1349 Mounting Gp-Ripper
3G***49Mounting Group-Ripper; Ripper Mounting Group1
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7p7016 Positioner & Kickout Gp-Part 1 Of 2
7p7016 Positioner & Kickout Gp-Part 2 Of 2
8y9271 Ripper Ar
1U***53Ripper Ar1
8Y***45Cover Group-Bumper Replacement1
8Y***71Ripper Ar1
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1u4453 Ripper Ar
1U***53Ripper Ar1
1U***54Lines Group-Ripper; Ripper Lines Group1
3G***49Mounting Group-Ripper; Ripper Mounting Group1
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9j4329 Ripper Gp
3a7238 Tip Gp-Long
3A***38Tip Group1
9J***69Tip Group-Long; -J-2508
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3a7237 Tip Gp-Short
3A***37Tip Group1
9J***78Tip Group-Short; -J-2508
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9j3167 Tip Gp-Long
8y9567 Tip Gp-Long
8Y***67Tip Group-Long1
9J***67Tip Group-Long; -J-3008
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9j3169 Tip Gp-Long
9j3178 Tip Gp-Short
9j3175 Tip Gp-Short
8y9566 Tip Gp-Short
8Y***66Tip Group-Short1
9J***75Tip Group-Short; -J-3008
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3g4017 Tooth Gp-Long
1u0629 Tooth Gp-Long
1U***07Adapter (Bolted On)6
1U***29Tooth Group-Long1
3G***08Adapter-Strap; (Lh)1
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9j1137 Tooth Gp-Ripper
1u0630 Tooth Gp-Short
1U***07Adapter (Bolted On)6
1U***30Tooth Group-Short1
3G***08Adapter-Strap; (Lh)1
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3g4018 Tooth Gp-Short
1u2425 Tooth Gp-Universal
1U***77Tooth-Uni6
1U***78Tooth (L. H.)1
1U***79Tooth (R. H.)1
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1u2424 Tooth Gp-Universal
Lubrication System
1n3477 Breather Gp
7c4532 Drain Gp-Oil Pan
7C***32Drain Group-Oil Pan; Oil Pan Drain Group1
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7e3593 Filler Gp-Oil
4p8183 Filter Gp-Engine Oil
4P***83Filter Group-Engine Oil; Engine Oil Filter Group1
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4p1556 Fumes Disposal Gp
6i1709 Gauge Gp-Oil Level(Dipstick)
6I***09Gauge Group-Oil Level(Dipstick)1
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8g5493 Lines Gp-Drain
4w2914 Lines Gp-Engine Oil
4w2195 Pump Gp-Engine Oil
4W***95Pump Group-Engine Oil; Engine Oil Pump Group1
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2w8625 Pump Gp-Engine Oil*R
Operator Station
1126136 Air Conditioner Gp-Part 1 Of 2
8y9173 Air Conditioner Gp-Part 2 Of 2
1115680 Air Conditioner Gp
1126136 Air Conditioner Gp-Part 2 Of 2
8y9173 Air Conditioner Gp-Part 1 Of 2
8y9143 Cab Ar
8y9600 Cap Gp-Cab
8t9761 Clutch & Refrigerant Compressor Gp
3e1909 Compressor Gp-Clutch & Refrigerant
1175191 Compressor Gp-Refrigerant
6i2407 Compressor Gp-Refrigerant
1061260 Condenser Gp
9p9791 Condenser Gp
8y9656 Conversion Ar-Non-Rops
8g0479 Door Gp-Lh
8g0478 Door Gp-Rh
8y5874 Extension Gp-Backrest
8Y***74Extension Group-Backrest; Backrest Extension Group1
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8y5959 Extension Gp-Backrest
1172962 Guard Gp-Vandalism
8y6498 Guard Gp-Vandalism
8y9184 Heater Gp
8y9172 Heater Gp-Cab
1084582 Housing Gp-Seat Suspension
8y6823 Housing Gp-Seat Suspension
8y9507 Installation Gp-Radio
8y9506 Installation Gp-Radio
3a8800 Modification Ar-German
9x5601 Motor As-Wiper
9X***01Motor Group-Window Wiper; -Rear1
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7p6133 Mounting Gp-Rops
8y5992 Pan Gp-Seat
6v6561 Pivot Gp-Wiper Arm
6V***61Pivot Group-Wiper Arm; (Wiper Arm)1
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3a8715 Preparation Gp-German
8y9224 Pressurizer Gp-Cab-Part 1 Of 2
8y9151 Pressurizer Gp-Cab-Part 2 Of 2
8y9151 Pressurizer Gp-Cab-Part 1 Of 2
8y9224 Pressurizer Gp-Cab-Part 2 Of 2
8y9590 Rops Ar
8y9556 Rops Gp
8y9554 Rops Gp
3a8799 Rops Gp
8y9160 Rops Gp-Enclosed-Part 2 Of 2
8y9160 Rops Gp-Enclosed-Part 1 Of 2
8y3792 Seat Belt Gp
8Y***92Seat Belt Group; -Retractable-Operator1
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8y5976 Seat Gp-Vinyl-Lumbar
8y5986 Seat Gp-Fabric-Lumbar
8Y***86Seat Group; Seat Gp-Basic (Fabric) (Lumbar)1
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8y9141 Seat Gp-Suspension
8y6138 Seat Gp-Suspension-Fabric-Lumbar
8y6179 Seat Gp-Suspension-Vinyl
1180333 Step Gp
8y5888 Suspension Gp-Seat
1084082 Suspension Gp-Seat
10***82Suspension Group-Seat; -Contour-Shock Absorber1
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8g1626 Tank Gp-Windshield Washer
8G***26Tank Group-Windshield Washer; Windshield Washer Tank Group1
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8y9591 Vandalism Ar-Open Rops
11***62Guard Group-Vandalism1
5P***00Key Total 2 Pieces Per Unit; (Literature Compartment)1
5P***02Padlock Group; (Includes: Battery Compartments, Platform Compartments, Radiator Access Door, Firewall Doors)3
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3t7065 Wiper Gp
Service Equipment And Supplies
8c9954 Film Gp
Plate & Film Gp-Part 2 Of 2
10***98Film-Instruction; Next To Action Light1
6V***79Film; (Instruction) (Wiper) (On The Front Of Filter Neck Of The Windshield Washer Bottle In The Rh Platform Compartment)1
6V***80Film-Instruction; (Single Lever Control)(Single Lever Implement Control)1
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Plate & Film Gp-Part 1 Of 2
10***29Plate-Instruction; Locate Over Service Electric Disconnect Switch In Enclosure Near Battery Compartment1
11***37Plate-Rops/Fops; Left Side Of Vehicle Middle Of The Rops Post1
1P***07Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation4
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Steering And Braking System
8g9616 Brake Gp-Parking
8y9234 Control Gp-Brake
7p6610 Valve Gp-Brake Retarder
7P***10Control Group-Spd Override & Brk1
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8g0143 Control Gp-Steering-Part 2 Of 2
8g0143 Control Gp-Steering-Part 1 Of 2
Transmission
9j4828 Case Gp-Hydrostatic Power-Part 5 Of 7
9J***28Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j4828 Case Gp-Hydrostatic Power-Part 1 Of 7
9J***28Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j4828 Case Gp-Hydrostatic Power-Part 3 Of 7
9J***28Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j4828 Case Gp-Hydrostatic Power-Part 2 Of 7
9J***28Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j4828 Case Gp-Hydrostatic Power-Part 7 Of 7
9J***28Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j4828 Case Gp-Hydrostatic Power-Part 6 Of 7
9J***28Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j4828 Case Gp-Hydrostatic Power-Part 4 Of 7
9J***28Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j5378 Control Ar-Hydrostatic Power
1U***23Valve Group-Underspeed Override; (Underspeed Override)1
1U***43Valve Group-Bypass; Cooler By-Pass Valve Group1
1U***22Plate Group-Serial Number1
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8g1015 Control Gp-Speed & Direction-Part 2 Of 2
8G***15Control Group-Speed & Direction1
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8g1015 Control Gp-Speed & Direction-Part 1 Of 2
8G***15Control Group-Speed & Direction1
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3g5393 Control Gp-Transmission-Part 2 Of 2
3G***93Control Group-Transmission; Transmission Control Group1
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3g5393 Control Gp-Transmission-Part 1 Of 2
3G***93Control Group-Transmission; Transmission Control Group1
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3g5017 Cylinder Gp (Chg 01, 02)
3g5016 Cylinder Gp (Chg 01, 02)
7p6513 Drive Gp-Flexible Coupling
7p2612 Fastener Gp-Transmission & Drive Motor
7P***12Fastener Group-Tmsn & Drive Motor1
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8y9235 Filler Gp-Transmission & Pump Drive
8Y***35Filler Group-Transmission & Pump Drive1
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9t4730 Filter Gp
8g9622 Final Drive Gp
3g5973 Lines Gp-Hydrostatic Power Case-Part 2 Of 2
3G***73Lines Group-Hydraulic Power Case; Hydrostatic Power Case Lines Group1
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3g5973 Lines Gp-Hydrostatic Power Case-Part 1 Of 2
3G***73Lines Group-Hydraulic Power Case; Hydrostatic Power Case Lines Group1
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7p2680 Lines Gp-Hydrostatic
8y9064 Lines Gp-Power Train Cooler
3g5931 Linkage Gp-Hydrostatic Power Case-Part 1 Of 2
3G***31Linkage Group-Hydraulic Power Case; Hydrostatic Power Case Linkage Group1
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3g5931 Linkage Gp-Hydrostatic Power Case-Part 2 Of 2
3G***31Linkage Group-Hydraulic Power Case; Hydrostatic Power Case Linkage Group1
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3g0623 Linkage Gp-Servo-Part 2 Of 2
3g0623 Linkage Gp-Servo-Part 1 Of 2
6e3436 Motor Gp-Piston-Link-Part 2 Of 2
6e3436 Motor Gp-Piston-Link-Part 1 Of 2
6e1223 Pump Gp-Gear
9t0609 Rotating Gp-Pump-Piston
9t0608 Rotating Gp-Pump-Piston
4t5570 Valve Gp
9t1939 Valve Gp-Actuator
9T***39Valve Group-Actuator; Actuator Valve Group1
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4t2718 Valve Gp-Blocker
1u2043 Valve Gp-Bypass
1U***43Valve Group-Bypass; Cooler By-Pass Valve Group1
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1u4773 Valve Gp-Pilot
1U***73Valve Group-Pilot; Pilot Valve Group1
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9t9059 Valve Gp-Relief
9t1319 Valve Gp-Relief
9T***19Valve Group-Relief; Charge Relief Valve Group1
9T***09Valve Group-Relief1
9T***11Valve Group-Relief1
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9t5911 Valve Gp-Relief
9t5909 Valve Gp-Relief
9t1320 Valve Gp-Relief
9T***20Valve Group-Relief; -Servo1
9T***80Valve Group-Relief; -Pilot1
9T***10Valve Group-Relief; -Pilot1
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9t5880 Valve Gp-Relief
9t5910 Valve Gp-Relief
9j0365 Valve Gp-Replenishing-Lh-Part 2 Of 2
9j0365 Valve Gp-Replenishing-Lh-Part 1 Of 2
9j8554 Valve Gp-Replenishing-Rh-Part 1 Of 2
9j8554 Valve Gp-Replenishing-Rh-Part 2 Of 2
3g4595 Valve Gp-Servo-Rh
3g4594 Valve Gp-Servo-Lh
4t3056 Valve Gp-Shuttle
1u1723 Valve Gp-Underspeed Override
1U***23Valve Group-Underspeed Override; (Underspeed Override)1
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Undercarriage
9w2783 Cap Gp-Roller
8E***80Cap Group-Track Roller; Track Roller Cap Group24
9W***83Cap Group-Roller1
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6y4764 Cap Gp-Track Roller
8e0280 Cap Gp-Track Roller
8E***80Cap Group-Track Roller; Track Roller Cap Group1
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3w7561 Equalizer Bar Gp
8y1951 Frame Gp-Track Roller
8y2416 Guard Gp-Idler
8Y***16Guard Group-Idler; -Waste Handling1
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3w7581 Guard Gp-Track Guide
8y2275 Guard Gp-Track Roller
3w7485 Idler Gp-Front-Part 2 Of 2
3w7485 Idler Gp-Front-Part 1 Of 2
8y5342 Pivot Bar Gp
6y3908 Roller Gp-Carrier
6y3884 Seal & Bushing Gp
6T***58Seal Assembly80
6Y***73Plug; (Clear)40
6Y***84Seal & Bushing Group1
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7p2636 Segment Gp-Sprocket
7t4637 Track As-Link
8e5281 Track Gp-2 Required
1M***08Nut-Track156
3P***74Bolt-Track Master4
7H***97Bolt 53.17 mm(2.093 In.) Long156
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1128140 Track Gp-2 Required
11***36Shoe As-Master1
11***39Shoe As-Track39
11***40Track Group; -2 Required1
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8e5280 Track Gp-2 Required
1M***08Nut-Track156
3P***74Bolt-Track Master4
7H***97Bolt 53.17 mm(2.093 In.) Long156
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9p1368 Track Roller Gp
9P***68Track Roller Group; (Single Flange)1
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9p1363 Track Roller Gp
9P***63Track Roller Group; (Double Flange)1
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953B serial number reference

The PIN/serial plate on a 953B is mounted on the left side of the machine, on the support arm just ahead of the cab, with the number also stamped into the frame steel beside the plate as a tamper check. Serial numbers from this era run 8 characters: a 3-character letter/number prefix identifying the model and production block, followed by a 5-digit sequential unit number (for example 5MK00001). Match the 3-character prefix to the model's parts/service manual breakpoint to pull the correct manual and confirm what generation/build the machine actually is.

PrefixIdentifies
5MK953B track-type (crawler) loader, base/standard configuration

Frequently asked questions

What engine does the Caterpillar 953B use?

The 953B uses a Cat 3116 turbocharged inline-six diesel, rated around 88 kW (118-120 hp), replacing the four-cylinder 3204 used in the original 953.

What is the operating weight of the Caterpillar 953B?

Operating weight runs about 14.4 t (31,800 lb) in standard configuration; actual weight varies with bucket, counterweight, and track-shoe width.

What replaced the Caterpillar 953B?

Caterpillar replaced the 953B with the 953C in the mid-1990s. The 953C carried a higher-rated engine, around 95 kW (128 flywheel hp), on the same basic platform.

What 953B owners discuss

What engine does the 953B run, and how much life can an owner expect out of it before a rebuild?
The 953B carries a Cat 3116 turbocharged inline-six rated around 89 kW (roughly 118-120 hp net) — it replaced the smaller 3204 four-cylinder used in the original 953, which was the single biggest upgrade in the B-series update. Well-maintained units commonly reach 12,000-16,000 hours on the original engine before a rebuild is needed, and some owners report 18,000+ hours with disciplined service. The most common complaint short of that is blue smoke or a rough, knocking idle traced to water or contamination in the fuel filters and water separator rather than internal wear — drain the separator and change filters before chasing anything more serious. Governor linkage that's out of adjustment can also mimic a fuel-delivery fault and is worth ruling out early.
The machine tracks fine straight but bogs the engine down or won't turn — what's the usual cause?
This loader uses a dual-circuit hydrostatic drive, not a mechanical steering clutch — each track runs its own variable-displacement pump and drive motor. A machine that pushes straight fine but bogs the engine or won't respond when you try to turn usually points to low charge pump pressure or a worn pump/motor on the affected side rather than a clutch problem. Check charge pressure at the test port before pulling anything apart — a reading well below spec (check the service manual, exact figure varies by configuration/series) points to charge pump or relief-valve wear, while normal charge pressure with a sluggish turn shifts suspicion to the servo control linkage or the pump/motor itself, which should be flow-tested. Because a hydrostatic drive fault can affect the operator's ability to control the machine, have your dealer verify charge pressure and servo linkage adjustment before returning it to work.
What undercarriage wear patterns are typical on the 953B?
Pad, bushing, and sprocket wear track ground conditions and tension the same as any mid-size track loader — nothing unusual for the class. Owners specifically flag sprocket segment bolts backing out or shearing over time, so a check during regular greasing catches this before a segment works loose or falls off. On tracks that have already run out significantly, the track adjuster (recoil) rod is reported as fragile and prone to damage if tension gets chased aggressively rather than replacing the worn components underneath it. Keep tension within spec and re-torque sprocket hardware on a set interval instead of waiting for a symptom.
Hydraulics feel weak, especially once the machine has warmed up — where do I look?
Lift or tilt response that doesn't improve after warm-up, or actually gets worse, usually points to internal pump wear or cylinder bypass rather than cold, thick oil — simply changing the hydraulic oil rarely fixes it on its own. Test pump output pressure at the quick-check port first: good pump pressure paired with weak actuator performance downstream means look at cylinder seals or control valve spools, while low pressure everywhere points at the pump itself. Audible pump whine or knock usually means a damaged rotor or cam ring rather than a simple seal leak. Hose and seal leaks around the loader arm cylinders are a common age-related item worth a visual check under load before condemning the pump.
Any recurring electrical or sensor gripes on this machine?
The 953B predates electronic engine and hydraulic controls, so most electrical complaints are basic wear items rather than sensor or module faults: wiring harness insulation cracking or chafing at high-flex points near the loader arms, corroded gauge-sender connections causing erratic temperature or pressure readings on the cluster, and a worn engine pre-heater (cold-start aid) module on machines equipped with one. None of this is unique to the 953B — they're standard age-related items on any machine of this vintage — but they show up often enough on used units to budget for during a purchase inspection.
How does the 953B feel to run day to day, and is it still practical to keep parts-supported?
Long-time operators generally rate it well: good visibility from the cab, reasonable comfort for its era (some units were optioned with A/C and a radio, appreciated on long shifts), and straightforward serviceability compared with more electronically complex later machines. Its compact footprint lets it work tighter spots than larger track loaders while still moving real production. Undercarriage and drivetrain parts remain in active aftermarket supply, so keeping one running long-term is generally practical as long as the hydrostatic pump/motor circuits and final drives have been kept in good order.
What should I check before buying a used 953B?
Pull maintenance records first — engine oil changes near 250-hour intervals and hydraulic filter changes near 500-hour intervals are the rough baseline for this class of machine, and gaps in that history predict problems elsewhere. Walk the undercarriage for pad and bushing wear and confirm sprocket segment hardware is tight, not backed out. Drain a sample from the final drives and the hydrostatic drive circuits and check for metal — cheap insurance against an expensive drivetrain rebuild. Check the wiring harness for brittle or spliced sections and confirm the gauges read true rather than bounce or stick. Between the 953B and the later 953C, dealers and long-time owners commonly favor the B for lower final-drive failure risk, since the C's final drives are flagged repeatedly as an expensive wear point — a clean, well-kept 953B with good undercarriage and drivetrain history can be the safer used buy of the two. Because hydrostatic drive condition affects safe operation, have your dealer verify charge pressure and pump/motor condition as part of any pre-purchase inspection.

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

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