Caterpillar 953
Caterpillartrack-type loaderripper

Caterpillar 953

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar 953 is a mid-size track-type (crawler) loader built roughly from 1981 to 1993, predecessor to the later 953B/953C/953D crawler loader line. It runs a Cat 3204 direct-injection, turbocharged four-cylinder diesel rated around 82 kW (110 hp), mechanically governed with no electronic engine controls. Drive is fully hydrostatic: each track gets independent, infinitely variable speed with automatic on-the-go direction change through pedal or lever steering, with no torque converter or powershift gearset in the driveline. Operating weight runs about 14,100 kg (31,080 lb), varying with standard-gauge or LGP (low ground pressure) track configuration. Caterpillar built this machine at plants in the USA, Japan, and France; no earlier Cat model is documented as its direct predecessor. The 953B took over the line afterward, moving up to the larger Cat 3116 six-cylinder engine.

Caterpillar later reused the 953B/953C/953D numbers for heavier, more powerful successors, and decades after this machine left production Caterpillar separately reused the bare '953' name for an unrelated current-generation Track Loader with a C7.1 engine; that later machine shares nothing with this one beyond the model number. Original 3204/hydrostatic 953 units are now well past factory support age, so most remaining machines are older forestry, landclearing, and landfill units still valued for their simple mechanical systems and relatively cheap parts. Parts demand centers on undercarriage wear items (sealed track, rollers, sprockets), hydrostatic pump and motor rebuild components, and 3204 engine parts shared with other Cat machines of the same era. Buyers looking at this generation trade modern emissions controls and electronics for low acquisition cost and straightforward field repair.

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 953 specifications

Engine

Engine modelCat 3204, turbocharged inline 4-cylinder diesel
Net power82 kW (110 hp)
Displacement5.2 L (317.4 in³)
EmissionsPredates non-road emissions certification; no Tier/Stage rating applies

Weights

Operating weight, standard shoes14,098–14,102 kg (31,081–31,090 lb)
Operating weight, LGP shoes14,362 kg (31,663 lb)

Dimensions

Overall length, bucket on ground5.87–6.38 m (19.25–20.92 ft), varies by measurement basis across catalogs
Overall width over tracks2.18–2.31 m (7.16–7.58 ft)
Height to top of cab3.08–3.15 m (10.1–10.33 ft)
Ground clearance0.38 m (1.24 ft)
Track gauge1800 mm (70.87 in)
Track shoe width, standard380 mm (14.97 in)
Track shoe width, LGP500 mm (19.69 in)

Performance

Maximum travel speed10.5 km/h (6.5 mph)
Breakout force, standard bucket117.4 kN (26,395 lbf)
Static tipping load8,748 kg (19,288 lb)
Ground pressure, standard shoe78 kPa (11.35 psi)
Ground pressure, LGP shoe61 kPa (8.79 psi)
Hydraulic cycle timesRaise 7.4 sec, dump 1.5 sec, lower 3.0 sec

Buckets and Blades

Bucket capacity1.3 m³ struck (1.7 yd³) / 1.53 m³ heaped (2.0 yd³)

Service Capacities

Fuel tank192 L (50.8 gal)
Hydraulic system58.3 L (15.4 gal)

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

953 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)Not published in available spec sheets for this loader installation. The Cat 3204 engine's oil system generally runs about 9.5-12.5 L (10-13 qt) across its various installations; confirm the exact dipstick-full figure against your OMM for this serial range.Cat diesel engine oil (Cat DEO-class, period API CD service rating). Use SAE 10W-30 for ambient -18C to 40C (0F to 104F); step down to SAE 0W-20/0W-30 in colder climates and up to SAE 30 or SAE 40 in sustained heat, per Cat's viscosity-by-ambient-temperature chart.
Cooling systemTotal machine capacity not confirmed for this generation. The 3204 engine block alone holds roughly 12 L (3.2 gal); full system volume with radiator and lines runs higher and depends on the loader's cooling package. Verify against your OMM.Cat heavy-duty coolant/antifreeze, full-strength ethylene-glycol type meeting Cat's coolant specification. Original-era fill was Cat DEAC; later service fills commonly use Cat ELC.
Fuel tank192 L (50.8 US gal).No. 2-D diesel fuel meeting Cat's fuel specification for the 3204 engine.
Transmission / power train (hydrostatic drive)Not published in available spec sheets for this generation; verify against your OMM or dealer.This 953 drives on a hydrostatic system (variable-displacement pump/motor pairs to each track), not a powershift transmission with separate bevel-gear/steering-clutch compartments -- that split belongs to Cat's clutch-steer dozer line, not this loader. Cat specifies Transmission/Drive Train Oil (TDTO) for the hydrostatic power case, graded by ambient temperature -- roughly SAE 10W in cold climates up to SAE 30/50 in sustained heat, per Cat's TDTO viscosity chart.
Final drives (each side)Not published in available spec sheets for this generation; verify against your OMM.Cat TDTO, same ambient-temperature viscosity grading as the hydrostatic power case.
Hydraulic system / tank (implement circuit)58 L (15.4 US gal).Cat TDTO-family fluid -- Cat's TDTO spec covers hydraulic compartments as well as drive and final-drive compartments on this era of machine. Grade by ambient temperature the same as the drive system.
Pivot shaftReported around 0.7 L (0.18 US gal) in secondary spec listings; not independently confirmed for this generation. Check the OMM lubrication chart for your serial range before filling.Cat TDTO or equivalent drivetrain oil per the OMM lubrication chart.
Grease points (pins, linkages, bucket/loader-arm pivots)Per-fitting service (purge old grease at each zerk); no bulk reservoir capacity applies.Cat Multipurpose Grease (MPGM), NLGI No. 2, lithium-complex base. If unavailable, substitute a multipurpose grease containing 3-5% molybdenum disulfide.

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

Caterpillar 953 maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level cold, before first start of the day
  • Check hydrostatic/hydraulic tank fluid level and scan pump and motor case drains for leaks
  • Drain water and sediment from the fuel tank and primary fuel filter/water separator
  • Check coolant level and inspect hoses for cracking or seepage
  • Inspect track tension, sealed track pins, and rollers for wear, cuts, or oil weep
  • Grease Z-bar loader linkage and lift arm pivot points
Every 250 h
  • Change engine oil and filter on normal duty cycles; shorten this interval in hot, dusty, or high-load conditions
  • Replace the primary fuel filter element
  • Check hydrostatic charge-pump pressure and case-drain flow against factory spec
  • Inspect alternator and fan belt tension and condition
  • Service the air cleaner primary element as indicated by the service gauge
  • Lubricate all Z-bar and tilt cylinder pivot points
Every 500 h
  • Replace the secondary fuel filter element
  • Check and adjust track sag; inspect roller frame pivot bushings for play
  • Pull an oil sample from the hydrostatic circuit to trend wear metals and contamination
  • Check final drive oil level and inspect housings for leaks
  • Inspect turbocharger boost lines and engine mounts for cracking or looseness
Every 1,000 h
  • Change hydrostatic/hydraulic system oil and filters
  • Change final drive oil
  • Adjust engine valve lash on the mechanically governed 3204 per factory clearance spec
  • Inspect fuel injection pump timing and governor linkage for wear or drift
  • Clean the radiator core, oil cooler fins, and fuel tank breather
  • Re-grease and inspect track roller frame oscillation bushings and pins
Every 2,000 h
  • Replace hydrostatic system filters and check charge relief valve setting against spec
  • Check injector condition and injection timing; recalibrate the mechanical governor if drifted
  • Check turbocharger shaft end play and inspect the wastegate linkage
  • Inspect and rebuild worn steering pedal linkage and hydrostatic control valve components
  • Gauge track chain, sprocket, and idler wear against factory wear limits
  • Flush and refill the cooling system and pressure-test the radiator cap
Every 4,000 h
  • Rebuild or factory-exchange the hydrostatic pump and drive motors once case-drain flow or output falls out of spec
  • Overhaul final drives and track roller frames when pivot and bushing play exceeds tolerance
  • Plan an in-frame or top-end 3204 overhaul (liners, rings, bearings) based on oil-analysis and blow-by trend rather than a fixed hour mark
  • Replace track chains, rollers, idlers, and sprockets as a set once wear limits are reached

Servicing the 953 beyond the schedule

Predictive maintenance & fluid analysis

Run scheduled oil sampling on the 3204 engine and the hydrostatic circuit instead of relying on hours alone. Rising iron or silicon in hydrostatic pump and motor case-drain oil flags early wear before a pump or motor seizes. Watch coolant condition for corrosion-inhibitor depletion, common on cooling systems this age. Fuel samples catch water and sediment before they reach the mechanical injection pump. Because this engine carries no ECM diagnostics, oil analysis and case-drain flow checks are the main early-warning tools available on this machine.

Corrective & common repairs

Repairs on this vintage 953 center on the hydrostatic drive: worn charge pumps, scored motor pistons, and shaft seals leaking from age-hardened rubber. Worn steering pedal linkage and control valve spools cause drift or sluggish counter-rotation and usually need bushing or spool replacement. On the 3204 side, expect injector and injection-pump wear, turbocharger shaft play, and valve lash drifting between scheduled adjustments. Undercarriage work focuses on sealed track pin and bushing wear and roller frame pivot bushings after decades of service life.

Overhaul & rebuild points

Major rebuild points on this machine are the hydrostatic pump and motor set, the 3204 in-frame (liners, rings, bearings), and the final drives. Check pump and motor flow and pressure against factory spec before committing to a full rebuild; declining case-drain flow is the usual trigger. Engine overhaul timing should follow oil-analysis and blow-by trends rather than a fixed hour figure on machines this old. Track roller frames and idlers typically need bushing and pin rebuilds once oscillation play exceeds factory tolerance.

Seasonal & environment servicing

Cold starts on the mechanically governed 3204 need correct-viscosity oil, a working starting aid, and a fully charged battery, since there is no electronic cold-start assist. Hydrostatic fluid thickens in cold weather too, so warm-up idle time before working the drive matters more than on a powershift machine. In hot, dusty, or abrasive ground conditions, shorten air filter, engine oil, and track lubrication intervals from the standard factory schedule to offset faster wear on the sealed track and hydrostatic seals.

953 common service parts

Part numberPart
6V-7615Film-Identification-On Fuel FilterCheck fitment →

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953 attachments & work tools

Blades

No dedicated bulldozer-style blade was cataloged for this crawler loader; grading, backfilling and light dozing were handled with the front bucket instead of a blade. General-purpose bucket capacity ran about 1.3 m3 struck / 1.5 m3 heaped (1.7 yd3 / 2.0 yd3), with a working width in the 2.3-2.4 m (90-95 in) range for this era of the series - width varies by bucket style and should be confirmed against the machine's plate rather than assumed.

Rippers

A rear-mounted, hitch-type multi-shank ripper (parallelogram linkage) was offered as an option for this loader class, with the beam able to carry up to three shank positions depending on ground conditions; single-shank rear rippers for light scarifying (frozen ground, thin asphalt, easily-ripped rock) were also common on loaders this size. The ripper ran off an added rear auxiliary hydraulic circuit rather than the base loader hydraulics. Exact factory shank counts and weights specific to this vintage aren't documented in available records - verify against the parts book for the serial range, and note the ripper also serves as extra rear counterweight and a de facto bumper when not in use.

Winches

A factory winch option is not documented for this crawler loader in available vintage records. Recovery/anchor winches were more typical on companion dozer models of similar power class from the same era, not this loader family. Treat any winch found fitted to an individual machine as a dealer or aftermarket addition and verify mounting and hydraulic/PTO compatibility through a dealer or parts book rather than assuming a factory arrangement.

Drawbars/counterweights

The engine sits over the rear of the machine, and its mass works as a running counterbalance against a loaded front bucket, a standard layout for loaders of this size and era. A rear ripper hitch, whether or not it is carrying shanks, adds further weight at the back end and can substitute for a dedicated counterweight. A bolt-on counterweight or pin-type drawbar specific to this exact vintage is not documented in available records - confirm with a dealer or parts book for the serial range before assuming fitment.

Cab/ROPS guarding

A pressurized, sound-suppressed ROPS/FOPS cab was offered for this class of loader. For forestry, brush-clearing, or debris-handling duty, dealers commonly fitted screen guarding over the cab glass, front grille/radiator screening, and underbody guarding to protect against branch strikes and flying debris - typical aftermarket or dealer-installed practice for loaders this size in that era. A named factory forestry package tied specifically to this exact vintage is not documented in available records - verify with a dealer for your serial range.

Hydraulic arrangement

Base hydraulics center on the hydrostatic drive circuit plus a separate implement circuit feeding the front loader lift/tilt cylinders; drive control on this generation runs through a hydrostatic control unit rather than the electronic hydrostatic control used on later, newer-engine versions of the series. Fitting a rear tool such as a ripper required adding an auxiliary control valve and routing hydraulic lines to the back of the machine, since the standard factory circuit is built around the front bucket only.

All 953 assemblies by section

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

Air Inlet And Exhaust System
6n3062 Air Cleaner Group
7n4155 Air Lines Group
6n6085 Exhaust Manifold Group
6N***85Manifold Group-Exhaust; Exhaust Manifold Group1
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7p8940 Muffler Mounting Group
6n7448 Muffler Group
Basic Engine
6n7209 Belt Tightener Group
2w0331 Camshaft Group
2W***31Camshaft Group; Single Camshaft Group1
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2w0854 Camshaft Group
2W***54Camshaft Group; Single Camshaft Group1
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7n9550 Camshaft Group
7N***50Camshaft Group; Single Camshaft Group1
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2w1337 Camshaft Group
2W***37Camshaft Group-Single; Single Camshaft Group1
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6n2396 Valve Mechanism Cover Group
6N***96Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
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Crankshaft Bearing Replacements
1W***55Bearing (0.25mm Undersize)2
1W***56Bearing (0.51mm Undersize)2
1W***57Bearing (1.27mm Undersize)2
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1w0402 Crankshaft Group
1W***02Crankshaft Group; Crankshaft Group1
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6n8288 Crankshaft Group
6N***88Crankshaft Group; Crankshaft Group1
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1w9768 Crankshaft Group
1W***68Crankshaft Group; Crankshaft Group1
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7n4821 Cylinder Block Assembly
2w7902 Cylinder Block Assembly-Field Installation
8n9191 Short Block Group-Field Installation*R
1W***02Crankshaft Group; Crankshaft Group1
6N***49Cylinder Block Group; Cylinder Block Group1
8N***79Piston & Rod Group; Connecting Rod And Piston Group4
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6n9049 Cylinder Block Group-Field Installation
6N***49Cylinder Block Group; Cylinder Block Group1
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8n9190 Short Block Group-Field Installation*R
1W***02Crankshaft Group; Crankshaft Group1
6N***90Cylinder Block Group; Cylinder Block Group1
6N***88Crankshaft Group; Crankshaft Group1
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2w2024 Short Block Group-Field Installation
1W***68Crankshaft Group; Crankshaft Group1
2W***40Piston & Rod Group; Connecting Rod And Piston Group4
2W***24Cylinder Block Group1
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6n2390 Cylinder Block Group
6N***90Cylinder Block Group; Cylinder Block Group1
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1w6221 Cylinder Head Group
8n6113 Cylinder Head Group
8N***13Cylinder Head Group; Cylinder Head Group1
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1w4241 Cylinder Head Group
6n7210 Fan Drive Group
6n7207 Water Pump Drive Group
6N***07Drive Group-Water Pump; Water Pump Drive Group1
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4n8063 Flywheel Group
4n6458 Flywheel Housing Group
4N***58Housing Group-Flywheel; Flywheel Housing Group1
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2w1578 Front Housing Group
2W***78Housing Group-Front; Front Housing Group1
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7n9956 Front Housing Group
7N***56Housing Group-Front; Front Housing Group1
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2w2835 Front Housing Group
2W***35Housing Group-Front; Front Housing Group1
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3w2572 Lift Eye Group
1w5554 Lifting Eye Group
4n0180 Lifting Eye Group
4N***80Lifting Group-Engine; Lifting Eye Group1
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6n3068 Engine Mounting Group
6n3052 Oil Pan Group
6N***52Pan Group-Oil; Pan Gp-Engine Oil1
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2w1040 Connecting Rod And Piston Group-4 Required
2W***40Piston & Rod Group; Connecting Rod And Piston Group1
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8n4079 Connecting Rod And Piston Group-4 Required
8N***79Piston & Rod Group; Connecting Rod And Piston Group1
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2w4841 Piston Group
6n7205 Auxiliary Drive Pulley Group
6N***05Pulley Group-Auxiliary Drive; Auxiliary Drive Pulley Group1
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6n7412 Fan Pulley Group
4w8269 Piston Ring Group--1.02 Mm (.040 In.) Oversize
2W***17Ring-Piston; (Oil)(1.02-mm Os)1
4W***68Ring-Piston; (Top)1
4W***69Ring Group-Piston1
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4w8261 Piston Ring Group--.51 Mm (.020 In.) Oversize
2W***16Ring-Piston; (Oil)(0.51-mm Os)1
4W***60Ring--Top1
4W***61Ring Group-Piston1
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7n0946 Engine Support Group
7N***46Support Group-Engine; Engine Support Group1
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6n2398 Valve Mechanism Group
6N***98Valve-Mechanism Group; Valve Mechanism Group1
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Cab, Gauges And Accessories
4v7849 Suspension Seat Adjuster Group-Type 2
4v7849 Suspension Seat Adjuster Group-Type 1
4v8599 Seat Adjuster Group
8g0959 Air Conditioner Arrangement-Heats And Cools
5P***13Refrigerant (19 Hg)0
6N***65Compressor Group-Refrigerant; Compressor Group--Refrigerant1
6N***23Alternator Group-Charging1
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7p1084 Air Conditioner Group-Type 2
7P***84Air Conditioner Group; Air Conditioner Group1
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7p1084 Air Conditioner Group-Type 1
7P***84Air Conditioner Group; Air Conditioner Group1
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3w1023 Cab Arrangement-Feller Buncher
3W***23Cab Ar1
3W***03Rops Group; Roll-Over Protective System Group-1
3W***04Cover Group; Covers Group-Feller Buncher1
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7n4296 Clutch And Refrigerant Compressor Group*R
7N***96Compressor Group-Clutch & Refrig1
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6n6765 Refrigerant Compressor Group-Type 2
6N***65Compressor Group-Refrigerant; Compressor Group--Refrigerant1
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6n6765 Refrigerant Compressor Group-Type 1
6N***65Compressor Group-Refrigerant; Compressor Group--Refrigerant1
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9g9310 Mounting And Condenser Group
9G***10Condenser & Mounting Group; Mounting And Condenser Group1
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9p9791 Condenser Group-Type 1
9p9791 Condenser Group-Type 2
9p9791 Condenser Group-Type 3
3w1304 Covers Group-Feller Buncher
3W***04Cover Group; Covers Group-Feller Buncher1
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5v4884 Seat Cover Group-Type 1
5v4884 Seat Cover Group-Type 2
4v9830 Seat Cover Group-Suspension-Type 2
4v9830 Seat Cover Group-Suspension-Type 1
7p1040 Dash Group
3w1307 Door Group-L.H.-Feller Buncher
3w1306 Door Group-R.H.-Feller Buncher
8g0479 Door Group-L.H.-Type 1
8g0479 Door Group-L.H.-Type 2
8g0478 Door Group-R.H.-Type 1
8g0478 Door Group-R.H.-Type 2
8g0150 Warning Gauge Group-Type 1
8g0150 Warning Gauge Group-Type 2
8g4418 Vandalism Guard Group
8G***18Guard Group-Vandalism; Vandalism Guard Group--Dash1
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7p1090 Vandalism Guard Group
7P***90Guard Group-Vandalism; Vandalism Guard Group--Dash1
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3w0916 Vandalism Guard Group
3W***16Guard Group-Vandalism; Vandalism Guard Group -- Dash1
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8g7208 Harness Assembly
7p8424 Harness Assembly
8g0960 Cab Heater Arrangement
1V***19Plug- Button; Plug--Button1
3J***90Plug Adapter Turbo Oil Supply; Plug-Adapter Turbo Oil Supply1
7P***91Heater Group-Cab; Heater Group--Cab1
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3w1224 Open Rops Heater Arrangement
3W***80Heater Group; Heater Group----------------------------1
3W***82Lines Group-Heater; Heater Lines Group----------------------1
3W***84Wiring Group-Pressurizer; Pressurizer Wiring Group----------------1
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3w0680 Heater Group-Open Rops
3W***80Heater Group; Heater Group----------------------------1
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7p1091 Cab Heater Group
7P***91Heater Group-Cab; Heater Group--Cab1
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7p1086 Air Conditioner Lines Group
7P***86Lines Group-Air Conditioner; Air Conditioner Lines Group1
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7p7980 Air Conditioner Lines Group
7p5056 Cab Heater Lines Group-Type 1
7P***56Lines Group-Heater; Cab Heater Lines Group1
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3w0682 Heater Lines Group-Open Rops
3W***82Lines Group-Heater; Heater Lines Group----------------------1
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7p5056 Cab Heater Lines Group-Type 2
7P***56Lines Group-Heater; Cab Heater Lines Group1
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7p6937 Rear View Mirror Group
7P***37Mirror Group-Rear View; Rear View Mirror Group1
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3w1258 Mounting & Pressurizer Group-Open Rops
3W***58Mounting & Pressurizer Group; Mounting & Pressurizer Group------------1
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7p1103 Cab Pressurizer Group-Part 2
7P***03Pressurizer Group; Cab Pressurizer Group1
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7p1103 Cab Pressurizer Group-Part 1
7P***03Pressurizer Group; Cab Pressurizer Group1
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8g1010 Roll-Over Protective System Arrangement
7P***37Mirror Group-Rear View; Rear View Mirror Group1
7P***13Rops Group1
8G***10Rops Ar; Roll-Over Protective System Arrangement.1
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8g0936 Roll-Over Protective System Arrangement
7P***37Mirror Group-Rear View; Rear View Mirror Group1
7P***13Rops Group1
7P***17Guard Group-Lines; Tilt Lines Guard Group1
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3w1303 Rollover Protective System Group-Feller Buncher
3W***03Rops Group; Roll-Over Protective System Group-1
3W***05Rops Group; Roll-Over Protective System Group-1
7P***37Mirror Group-Rear View; Rear View Mirror Group1
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7p1108 Roll-Over Protective System Group-Part 1
3w1305 Rollover Protective System Group-Part 2 Of 2-Feller Buncher
3W***05Rops Group; Roll-Over Protective System Group-1
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7p7013 Roll-Over Protective System Group
3w1305 Rollover Protective System Group-Part 1 Of 2-Feller Buncher
3W***05Rops Group; Roll-Over Protective System Group-1
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7p1108 Roll-Over Protective System Group-Part 2
7p5720 Seat Group
7p5719 Seat Group
3v8252 Suspension Seat Group
3V***52Seat Group-Suspension; Suspension Seat Group1
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7p5721 Suspension Seat Group-Type 1
7p5721 Suspension Seat Group-Type 2
8g0840 Suspension Seat Group
8g1205 Cover Group-Rops-Type 1
8G***05Step & Cover Group; Roll-Over Protective Structure Covers1
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8g1205 Cover Group-Rops-Type 2
8G***05Step & Cover Group; Roll-Over Protective Structure Covers1
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5v4861 Seat Suspension Group-Part 1-Type 1
5v4861 Seat Suspension Group-Part 1-Type 2
5v4861 Seat Suspension Group-Part 1 Of 2-Type 3
5v4861 Seat Suspension Group-Part 2-Type 1
5v4861 Seat Suspension Group-Part 2 Of 2-Type 3
5v4861 Seat Suspension Group-Part 2-Type 2
7p2782 Windshield Washer Tank Group
8g1626 Windshield Washer Tank Group
8G***26Tank Group-Windshield Washer; Windshield Washer Tank Group1
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3w1041 Tank Gp-Windshield Washer
3w0914 Vandalism Arrangement-Open Rops-Single Lever
3W***40Pin1
3W***12Covers Group-Radiator Protection; Radiator Protection Covers Group1
3W***14Vandalism Ar1
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3w0913 Vandalism Arrangement-Open Rops
3W***36Pin Assembly1
3W***12Covers Group-Radiator Protection; Radiator Protection Covers Group1
3W***13Vandalism Ar1
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8g0963 Vandalism Arrangement-Open Rops-Replaced By 3w915-Page 225a
1P***78Cap Group-Protection; Protection Cover Group Fuel Tank Cap1
7P***87Cover Group-Radiator Protection; Protection Covers Group--Radiator1
7P***90Guard Group-Vandalism; Vandalism Guard Group--Dash1
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3w0915 Vandalism Arrangement-Enclosed Rops
3W***12Covers Group-Radiator Protection; Radiator Protection Covers Group1
3W***15Vandalism Ar1
5G***12Cap Group-Protection; Fuel Filler Protection Cap Group1
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8g0962 Vandalism Arrangement-Enclosed Rops-Replaced By 3w915-Page 225a
1P***78Cap Group-Protection; Protection Cover Group Fuel Tank Cap1
7P***87Cover Group-Radiator Protection; Protection Covers Group--Radiator1
8G***62Vandalism Ar1
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8g0892 Vandalism Arrangement-Open Rops-Single Lever-Replaced By 3w914-
1P***78Cap Group-Protection; Protection Cover Group Fuel Tank Cap1
5P***00Key Total 2 Pieces Per Unit; (Literature Compartment)2
5P***02Padlock Group; (Includes: Battery Compartments, Platform Compartments, Radiator Access Door, Firewall Doors)1
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8g2971 Windshield Washer Group
8G***71Washer Group-Windshield; Windshield Washer Group1
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7p1119 Windshield Washer Group
6t7300 Wiper Group
7p9146 Rear Wiper Group-Type 2
7P***46Wiper Group-Rear; Rear Wiper Group1
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7p9146 Rear Wiper Group-Type 1
7P***46Wiper Group-Rear; Rear Wiper Group1
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7p1118 Windshield Wiper Group-Type 2
7P***18Wiper Group-Windshield; Windshield Wiper Group1
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7p1118 Windshield Wiper Group-Type 1
7P***18Wiper Group-Windshield; Windshield Wiper Group1
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7p1085 Air Conditioner Wiring Group-Type 2
7P***85Wiring Group-Air Conditioner; Wiring Group--Air Conditioner1
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7p1085 Air Conditioner Wiring Group-Type 1
7P***85Wiring Group-Air Conditioner; Wiring Group--Air Conditioner1
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7p5055 Pressurizer Wiring Group
7P***55Wiring Group-Pressurizer; Pressurizer Wiring Group1
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3w0684 Pressurizer Wiring Group-Open Rops
3W***84Wiring Group-Pressurizer; Pressurizer Wiring Group----------------1
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Chassis And Undercarriage
7p8939 Equalizer Bar Group
7p8914 Pivot Bar Group
8g0148 Safety Brace Group
8g4051 Rear Bumper Group
8g1701 Non-Rops Conversion Arrangement
8G***11Guard Group-Lines; Tilt Lines Guard Group1
8G***05Step & Cover Group; Roll-Over Protective Structure Covers1
8G***01Conversion Ar-Non-Rops; Non-Rops Conversion Arrangement1
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8g0920 Non-Rops Conversion Arrangement
7P***17Guard Group-Lines; Tilt Lines Guard Group1
8G***20Conversion Ar-Non-Rops1
8G***11Guard Group-Lines; Tilt Lines Guard Group1
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7p8935 Engine Enclosure Group-Part 4 Of 4
7p8935 Enclosure Gp-Engine-Part 3 Of 4
7p8935 Engine Enclosure Group-Part 2 Of 4
7p8935 Engine Enclosure Group-Part 1 Of 4
7p8935 Enclosure Gp-Engine-Part 4 Of 4
7p8935 Engine Enclosure Group-Part 3 Of 4
7p8935 Enclosure Gp-Engine-Part 2 Of 4
7p8935 Enclosure Gp-Engine-Part 1 Of 4
7p9900 Loader Frame Group
8g5445 Track Roller Frame Group
7p8916 Track Roller Frame Group
7p6512 Bottom Guard Group
7p6615 Front Guard Group
3w2622 Idler Guard Group
7p6170 Implement Control Guard Group
7P***70Guard Group-Implement Control; Implement Control Guard Group1
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7p9217 Tilt Lines Guard Group
7P***17Guard Group-Lines; Tilt Lines Guard Group1
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8g1011 Tilt Lines Guard Group
8G***11Guard Group-Lines; Tilt Lines Guard Group1
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7p8907 Radiator Guard Group
7p1049 Track Guide Guard Group
7p3522 Track Roller Guard Group-Type 2
7p3522 Track Roller Guard Group-Type 1
8g3811 Hitch Group
7p8917 Front Idler Group-Part 2 Of 2
7p8917 Front Idler Group-Part 1 Of 2
7p6133 Roll-Over Protective Structure Mounting Group
7p6614 Tilt Platform Group
8g2722 Tilt Platform Group-Part 2
8g2722 Tilt Platform Group-Part 1
6k9880 Track Carrier Roller Group-2 Required
6K***80Roller Group-Track Carrier; (Upper)1
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9p4211 Track Roller Group-Double Flange-4 Required
9P***11Roller Group-Track Double Flange; Track Roller Group-Double Flange1
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9p4208 Track Roller Group-Single Flange-8 Required
9P***08Roller Group-Track Single Flange; Track Roller Group-Single Flange1
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6t3578 Seal And Bushing Group
1V***68Seal Assembly70
1V***94Bushing-Track; Bushing Track35
6T***78Seal & Bushing Group1
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7p8909 Step Group
7p6906 Tilt Platform Support Group
7p8908 Platform Tilt Group
3y7648 Track Group-460 Mm (18 In.) Triple Grouser Shoe-Sealed And
3t2183 Track Group-460 Mm (18 In.) Double Grouser Shoe-Sealed And
Cooling System
8g4097 Implement Cooler Conversion Arrangement
3G***26Conversion Group-Field; Cooler Supply Field Conversion Group1
7N***44Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
8G***95Lines Group-Hydraulic Oil Cooler; Hydraulic Oil Cooler Lines Group1
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8g0147 Implement Cooler Conversion Arrangement-Field Installation
3G***26Conversion Group-Field; Cooler Supply Field Conversion Group1
7N***44Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
7P***34Lines Group-Hydraulic Oil Cooler; Hydraulic Oil Cooler Lines Group1
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9n5659 Engine Oil Cooler Group
6n9052 Engine Oil Cooler Group
6N***52Cooler Group-Engine Oil; Engine Oil Cooler Group1
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1w1138 Engine Oil Cooler Group
1W***38Cooler Group-Engine Oil; Engine Oil Cooler Group1
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7n9744 Hydraulic Oil Cooler Group
7N***44Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
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2w1879 Hydraulic Oil Cooler Group
2W***79Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Lines Group1
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8n0482 Transmission Oil Cooler Group
3w0912 Protection Cover Gp-Radiator
3W***12Covers Group-Radiator Protection; Radiator Protection Covers Group1
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6n4852 Blower Fan Group
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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8g4095 Hydraulic Oil Cooler Lines Group-Type 2
8G***95Lines Group-Hydraulic Oil Cooler; Hydraulic Oil Cooler Lines Group1
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8g4095 Hydraulic Oil Cooler Lines Group-Type 1
8G***95Lines Group-Hydraulic Oil Cooler; Hydraulic Oil Cooler Lines Group1
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7p9834 Hydraulic Oil Cooler Lines Group-Replaced By 8g4095 Shown On Page
7P***34Lines Group-Hydraulic Oil Cooler; Hydraulic Oil Cooler Lines Group1
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4n0188 Water Lines Group
4N***88Lines Group-Water; Water Lines Group1
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6n7450 Radiator And Transmission Cooler Mounting Group
6N***50Mounting Group-Rad & Tmsn Cooler1
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4n0660 Water Pump Group
4N***60Pump Group-Water; Water Pump Group1
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6n2742 Radiator Group
Engine Arrangement
4n8376 Engine Arrangement-Part 2 Of 2
1W***35Lines Group-Fuel Injection; Fuel Injection Lines Group1
1W***38Cooler Group-Engine Oil; Engine Oil Cooler Group1
2W***33Pump Group-Engine Oil; Engine Oil Pump Group1
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4n8376 Engine Arrangement-Part 1 Of 2
1W***02Crankshaft Group; Crankshaft Group1
1W***54Lifting Group1
1W***68Crankshaft Group; Crankshaft Group1
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Fuel System And Governor
1p8678 Protection Cap Group-Fuel Tank
1P***78Cap Group-Protection; Protection Cover Group Fuel Tank Cap1
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5g3612 Protection Cap Group-Fuel Tank
5G***12Cap Group-Protection; Fuel Filler Protection Cap Group1
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8n9751 Fuel Heater Changeover Group-Field Installation
8N***51Changeover Group; Aftercooler Group--Water1
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8g0140 Governor Control Group-Part 2
8g0140 Governor Control Group-Part 1
8n6158 Governor Cover Group
8n3493 Accessory Drive Group
8N***93Drive Group-Accessory; Accessory Drive Group1
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8n4251 Fuel Filter Group
8N***51Filter Group-Fuel; Fuel Filter Group1
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6n1044 Primary Fuel Filter Group
6N***44Filter Group-Primary Fuel; Primary Fuel Filter Group1
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8n4419 Governor Group-Part 2 Of 2-Type 2
8n4419 Governor Group-Part 2 Of 2-Type 1
8n4419 Governor Group-Part 1 Of 2-Type 2
8n4419 Governor Group-Part 1 Of 2-Type 1
7p9208 Fuel Lines Group
8g4124 Fuel Lines Group
1w1135 Fuel Injection Lines Group
1W***35Lines Group-Fuel Injection; Fuel Injection Lines Group1
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7n6345 Fuel Injection Lines Group
7N***45Lines Group-Fuel Injection; Fuel Injection Lines Group1
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8n4915 Fuel Transfer Pump And Mounting Group
8N***15Pump & Mounting Group; Fuel Transfer Pump And Mounting Group1
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7n6933 Fuel Injection Pump Group-Type 2
7n6933 Fuel Injection Pump Group-Type 1
8n3567 Fuel Priming Pump Group
8N***67Pump Group-Fuel Priming; Fuel Priming Pump Group1
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4n6117 Governor And Fuel Injection Pump Group
4N***17Pump Group-Gov & Fuel Inj; Governor And Fuel Injection Pump Group1
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7p6510 Fuel Tank Group
8n8758 Torque Control Group
Hydraulic System
1u2296 Cartridge Group-Replaced By 9t1697-Page 181c
9t1697 Front Cartridge Group*R
1u3519 Cartridge Group-Clockwise*R
7p1034 Bucket Control Group
8g5318 Bucket Control Group
7p1100 Diverter Control Group-Type 2
7P***00Control Group-Diverter; Diverter Control Group1
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7p1100 Diverter Control Group-Type 1
7P***00Control Group-Diverter; Diverter Control Group1
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7p1100 Diverter Control Group-Type 3
7P***00Control Group-Diverter; Diverter Control Group1
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7p2908 Hydraulic Hand Control Group
7P***08Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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7p6909 Mechanical Hydraulic Control Group-Part 2 Of 3-Type 3
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 1 Of 3-Type 1
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 3 Of 3-Type 2
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 2 Of 3-Type 1
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 3 Of 3-Type 3
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 1 Of 3-Type 4
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 3 Of 3-Type 1
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 2 Of 3-Type 4
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 3 Of 3-Type 4
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 1 Of 3-Type 3
7P***09Control Group-Mechanical Hydraulic1
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7p6909 Mechanical Hydraulic Control Group-Part 2 Of 3-Type 2
7P***09Control Group-Mechanical Hydraulic1
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7p6607 Mechanical Hydraulic Control Group-Part 1
7P***07Control Group-Mechanical Hydraulic; Mechanical Hydraulic Control Group1
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7p6909 Mechanical Hydraulic Control Group-Part 1 Of 3-Type 2
7P***09Control Group-Mechanical Hydraulic1
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7p6607 Mechanical Hydraulic Control Group-Part 2
7P***07Control Group-Mechanical Hydraulic; Mechanical Hydraulic Control Group1
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3g8626 Hydraulic Cooler Supply Conversion Group-Field Installation
3G***26Conversion Group-Field; Cooler Supply Field Conversion Group1
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8g2533 Hydraulic Oil Cooler Arrangement
7N***44Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
7P***34Lines Group-Hydraulic Oil Cooler; Hydraulic Oil Cooler Lines Group1
8G***33Cooler Ar-Hydraulic Oil; Hydraulic Oil Cooler Arrangement1
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8g2534 Hydraulic Oil Cooler Arrangement
2W***79Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Lines Group1
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
7N***44Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
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9v8168 Seal & Cylinder Group
4t1963 Lift Cylinder Group-(Change 0)-101.6 Mm (4.7 In.) Bore X 742 Mm
3g1296 Ripper Cylinder Group (Changes 1-3)-101.6 Mm (4.7 In.) Bore X
3g4653 Tilt Cylinder Group (Change 1) 121 Mm (4.7 In.) Bore X 493.0 Mm
4t9387 Cylinder Group
9j4892 Bucket Cylinder Group (2v9862 N/S)-(Change 2)-101.6 Mm (4.7 In.)
9J***92Cylinder Group-Bucket; Seal And Cylinder Gp1
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9j0532 Lift Cylinder Group (Change 6)
1u4802 Tilt Cylinder Group (Change 0)-121 Mm (4.75 In.) Bore X 493 Mm
8g0155 Hydraulic Arrangement-3 Valve-Front
7P***94Lines Group-Attachment; Attachment Lines Group1
7P***95Lines Group-Front; Front Attachment Lines Group1
7P***08Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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8g4262 Hydraulic Arrangement-3 Valve-Front And Rear
2W***79Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Lines Group1
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
7N***44Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
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8g0156 Hydraulic Arrangement-3 Valve-Rear
7P***94Lines Group-Attachment; Attachment Lines Group1
7P***98Lines Group-Rear Attachment; Rear Attachment Lines Group1
7P***08Control Group-Hydraulic Hand; Hydraulic Hand Control Group1
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8g0157 Hydraulic Arrangement-3 Valve-Front And Rear
7P***94Lines Group-Attachment; Attachment Lines Group1
7P***95Lines Group-Front; Front Attachment Lines Group1
7P***98Lines Group-Rear Attachment; Rear Attachment Lines Group1
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8g0153 Hydraulic Arrangement-3 Valve-Rear
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
7P***94Lines Group-Attachment; Attachment Lines Group1
7P***98Lines Group-Rear Attachment; Rear Attachment Lines Group1
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8g0154 Hydraulic Arrangement-3 Valve-Front And Rear
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
7P***94Lines Group-Attachment; Attachment Lines Group1
7P***95Lines Group-Front; Front Attachment Lines Group1
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8g3988 Hydraulic Arrangement-Special
1P***02Seal-Rectangular 28.83mm(1.136in) Id2
5P***43Bolt 2.86 cm (1.125 In.) Long4
5P***45Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate)4
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8g0152 Hydraulic Arrangement-3 Valve-Front
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
7P***94Lines Group-Attachment; Attachment Lines Group1
7P***95Lines Group-Front; Front Attachment Lines Group1
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8g4260 Hydraulic Arrangement-3 Valve-Front
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
7N***44Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
7P***94Lines Group-Attachment; Attachment Lines Group1
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8g4261 Hydraulic Arrangement-3 Valve-Rear
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
7N***44Cooler Group-Hydraulic Oil; Hydraulic Oil Cooler Group1
7P***94Lines Group-Attachment; Attachment Lines Group1
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7p6608 Positioner And Kickout Group-Part 1 Of 2
7p6608 Positioner And Kicout Group-Part 2
7p6608 Positioner And Kickout Group-Part 1
7p6608 Positioner And Kickout Group-Part 2
7p1094 Attachment Lines Group
7P***94Lines Group-Attachment; Attachment Lines Group1
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8v7362 Bucket Lines Group-Replaced By 9v8414-Page 172b-1
8V***62Lines Group-Bucket; Bucket Lines Group1
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9v8414 Bucket Lines Group
9V***14Lines Group-Bucket; Bucket Lines Group1
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7p1095 Front Attachment Lines Group-Part 2
7P***95Lines Group-Front; Front Attachment Lines Group1
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8g3517 Front Lines Group-Part 1 Of 2-Type 1
8G***17Lines Group-Front; Front Attachment Lines Group1
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7p1095 Front Attachment Lines Group-Part 1
7P***95Lines Group-Front; Front Attachment Lines Group1
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8g3517 Front Lines Group-Part 2 Of 2-Type 2
8G***17Lines Group-Front; Front Attachment Lines Group1
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8g3517 Front Lines Group-Part 1 Of 2-Type 2
8G***17Lines Group-Front; Front Attachment Lines Group1
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8g3517 Front Lines Group-Part 2 Of 2-Type 1
8G***17Lines Group-Front; Front Attachment Lines Group1
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7p1072 Lift Cylinder Lines Group-Part 1
7p1072 Lift Cylinder Lines Group-Part 2
8g5323 Lift Cylinder Lines Group-Part 2 Of 2
8g5323 Lift Cylinder Lines Group-Part 1 Of 2
7p4686 Pump Lines Group
8g3976 Rear Attachment Lines Group
8G***76Lines Group-Rear Attachment; Rear Attachment Lines Group1
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7p1098 Rear Attachment Lines Group
7P***98Lines Group-Rear Attachment; Rear Attachment Lines Group1
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1u4504 Ripper Lines Group
1U***04Lines Group-Ripper; Ripper Lines Group1
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8g0648 Tilt Cylinder Lines Group
7p7017 Tilt Cylinder Lines Group
3w1025 Tilt Cylinder Lines Group
3W***25Lines Group-Tilt Cylinder; Tilt Cylinder Lines Group-Special1
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7p1074 Hydraulic Tank Mounting Group
3w1024 Cylinder Pin Group
3W***24Pin Group-Cylinder; Cylinder Pin Group-Special Lift Arms1
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8g7153 Vane Pump Group-Type 2
8G***53Pump Group-Vane; Vane Pump Group1
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8g7151 Vane Pump Group
3g1752 Vane Pump Group
8g7153 Vane Pump Group-Type 1
8G***53Pump Group-Vane; Vane Pump Group1
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7p5900 Vane Pump Group
3g2805 Vane Pump Group-Replaced By 9t1696-Page 181b
9t1696 Vane Pump Group
9j7263 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 1
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 3
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 5
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 1
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7262 Hydraulic Tank And Valve Group-Part 3 Of 3
3g8142 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 4
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 3
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7263 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 2
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 1
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7262 Hydraulic Tank And Valve Group-Part 2 Of 3
3g8142 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 3
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7262 Hydraulic Tank And Valve Group-Part 1 Of 3
3g8143 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 1
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7263 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 3
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7263 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 2
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 2
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 5
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7263 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 2
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 5
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 2
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 1
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 1
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 4
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7263 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 3
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 4
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 4
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 2
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 4
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 5
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 3
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 2
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 3
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 4
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 2
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7263 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 1
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7263 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 3
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 2
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 1 Of 3-Type 3
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 5
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8142 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 5
3G***42Tank & Valve Group; Hydraulic Tank And Valve Group1
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3g8143 Hydraulic Tank And Valve Group-Part 2 Of 3-Type 1
3G***43Tank & Valve Group; Hydraulic Tank And Valve Group1
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9j7263 Hydraulic Tank And Valve Group-Part 3 Of 3-Type 1
9J***63Tank & Valve Group; Hydraulic Tank And Valve Group1
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3w1295 Lines & Valve Group
3W***95Valve & Lines Group; Lines And Valve Group1
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9j0456 Control Valve Group-Part 1 Of 2
9j0456 Control Valve Group-Part 2 Of 2
4t5796 Valve Gp-Control-Part 1 Of 2
4t5796 Valve Gp-Control-Part 2 Of 2
9j0817 Control Valve Group
9j7128 Diverter Valve Group
9J***28Valve Group-Diverter; -Auxiliary Front, Rear Lines1
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4t9948 Relief Valve Group-Pilot Operated
4T***48Valve Group-Pitch Relief; -Secondary Steering1
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4t1573 Relief Valve Group-Pilot Operated
4T***73Valve Group-Relief; Relief Valve Group-Fluid Control Inc1
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9j0458 Relief Valve Group-Direct Operated
9j0460 Relief Valve Group-Pilot Operated
3G***33Valve Group-Relief; Relief Valve Group-Snap Tite Inc1
4T***73Valve Group-Relief; Relief Valve Group-Fluid Control Inc1
4T***96Seal Kit (Service Repair For 9j460)1
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3g7433 Relief Valve Group-Pilot Operated
3G***33Valve Group-Relief; Relief Valve Group-Snap Tite Inc1
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4t5890 Relief Valve Group-Direct Operated
3g9804 Relief Valve Group-Pilot Operated
3G***04Valve Group-Relief1
4T***92Kit-Relief Valve Seal1
4T***50Valve Group-Relief; Relief Valve Gp-Fluid Control1
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4t9950 Relief Valve Group-Pilot Operated
4T***50Valve Group-Relief; Relief Valve Gp-Fluid Control1
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4t9951 Relief Valve Group-Pilot Operated
4T***51Valve Group-Relief; Relief Valve Group1
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9j0459 Relief Valve Group-Direct Operated
Implements
3g4429 Bit And Cutting Edge Group
8v7363 Multi-Purpose Bucket Arrangement-1.00 M3 (1.3 Yd.3)
2V***62Seal And Cylinder Group2
8V***59Bucket Group-Multipurpose; Multi-Purpose Bucket Group1
8V***62Lines Group-Bucket; Bucket Lines Group1
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4v8695 General Purpose Bucket Assembly-1.15 M3 (1.5 Yd.3)-2210 Mm
8v7359 Multi-Purpose Bucket Group-1.03 M3 (1.3 Yd.3)-2256 Mm (88.82 In.)
8V***59Bucket Group-Multipurpose; Multi-Purpose Bucket Group1
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Cutting Edges-Field Installation
4T***92Segment Edge For Use With 4v***50 Base1
9V***70Cutting Edge For Use With 4v***95 General1
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4t0660 Ripper Mounting And Cylinder Group
4T***60Cylinder & Mounting Group; Ripper Mounting And Cylinder Group1
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3g5128 Ripper Mounting And Cylinder Group
4t9562 Cutting Edge Group
3w1026 Feller Buncher Arrangement-Without Lift Arms
1N***46Turbocharger Group1
3W***24Pin Group-Cylinder; Cylinder Pin Group-Special Lift Arms1
3W***25Lines Group-Tilt Cylinder; Tilt Cylinder Lines Group-Special1
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8v7370 Cylinder Mounting Group
4t0661 Ripper Mounting Group
4T***61Mounting Group-Ripper; Ripper Mounting Group1
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3g1349 Ripper Mounting Group
3G***49Mounting Group-Ripper; Ripper Mounting Group1
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3g1620 Ripper Arrangement
3G***20Ripper Ar; Ripper Arrangement1
9J***29Ripper Group; Ripper Group1
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3g1619 Ripper Arrangement
1U***04Lines Group-Ripper; Ripper Lines Group1
3G***49Mounting Group-Ripper; Ripper Mounting Group1
3G***19Ripper Ar1
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9j4329 Ripper Group
9j3169 Tip Group-Long
9j3178 Tip Group-Short-Extreme Service
4t2253 Abrasion Tip Group-Bucket-Field Installation
3g4017 Tooth Group-Long
9j1137 Ripper Tooth Group
3g4018 Tooth Group-Short
Lubrication System
6n3382 Breather Gp
7p1087 Radiator Protection Cover Group
7P***87Cover Group-Radiator Protection; Protection Covers Group--Radiator1
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8n5930 Oil Filter Group
8N***30Filter Group-Engine Oil; Engine Oil Filter Group1
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6n5095 Fumes Disposal Group
7n5720 Oil Level Gauge Group
7N***20Gauge Group-Oil Level (Dipstick)1
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8g5493 Drain Lines Group-Oil Filter
8n3876 Oil Filler Group
7N***76Oil Filler Group; Fuel Injection Pump And Governor1
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2w2833 Oil Pump Group
2W***33Pump Group-Engine Oil; Engine Oil Pump Group1
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6n3053 Oil Pump Group
6N***53Pump Group-Oil; Oil Pump Group-Without Housing1
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Power Train-Power Transmission Unit
9j7266 Hydrostatic Power Case Group-Part 3 Of 6
9J***66Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j7266 Hydrostatic Power Case Group-Part 6 Of 6
9J***66Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j7266 Hydrostatic Power Case Group-Part 5 Of 6
9J***66Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j7266 Hydrostatic Power Case Group-Part 1 Of 6
9J***66Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j7266 Hydrostatic Power Case Group-Part 2 Of 6
9J***66Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j7266 Hydrostatic Power Case Group-Part 4 Of 6
9J***66Case Group-Hydrostatic Power; Hydrostatic Power Case Group1
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9j3458 Hydrostatic Power Control Arrangement
1U***43Valve Group-Bypass; Cooler By-Pass Valve Group1
1U***71Valve Group-Pilot; Pilot Overspeed Valve Group1
3G***63Linkage Group-Hydraulic Power Case; Hydrostatic Power Case Linkage Group1
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8g0142 Speed & Direction Control Group-Side View-Part 1 Of 2
8G***42Control Group-Speed & Direction1
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8g0142 Speed & Direction Control Group-Front View-Part 2 Of 2
8G***42Control Group-Speed & Direction1
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8g0142 Speed And Direction Control Group-Front View
8G***42Control Group-Speed & Direction1
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8g0142 Speed And Direction Control Group-Side View
8G***42Control Group-Speed & Direction1
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3g4503 Transmission Control Group-Part 2
3G***03Control Group-Transmission; Transmission Control Group1
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3g4503 Transmission Control Group-Part 1
3G***03Control Group-Transmission; Transmission Control Group1
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3g4648 Cylinder Group (Change 1)-R.H.
3G***48Cylinder Group-Servo; Cylinder Group-R.H.1
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3g4647 Cylinder Group (Change 1)-L.H.-82.55 Mm (3.25 In.)
3G***47Cylinder Group-Servo; Cylinder Group-L.H.1
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7p6513 Flexible Coupling Drive Group
7p2612 Transmission And Drive Motor Fastener Group
7P***12Fastener Group-Tmsn & Drive Motor1
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7p9903 Transmission And Pump Drive Filler Group
3g1856 Filter Group-Main
3G***56Filter Group; Filter Group--Main1
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3g1856 Main Filter Group
3G***56Filter Group; Filter Group--Main1
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8g0136 Final Drive Group-Part 1 Of 2
8g0136 Final Drive Group-Part 2 Of 2
8g6780 Sprocket Guard Group
9j2092 Hydrostatic Lines Group
9j2092 Lines Gp-Hydrostatic
3g7395 Hydrostatic Power Case And Lines Group-Part 1
3G***95Lines Group-Hydrostatic Pwr Case; Hydrostatic Power Case Lines Group1
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3g7395 Hydrostatic Power Case Lines Group-Part 2 Of 2
3G***95Lines Group-Hydrostatic Pwr Case; Hydrostatic Power Case Lines Group1
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3g7395 Hydrostatic Power Case Lines Group-Part 2
3G***95Lines Group-Hydrostatic Pwr Case; Hydrostatic Power Case Lines Group1
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3g7395 Hydrostatic Power Case Lines Group-Part 1 Of 2
3G***95Lines Group-Hydrostatic Pwr Case; Hydrostatic Power Case Lines Group1
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7p1068 Power Train Cooler Lines Group
3g1163 Hydrostatic Power Case And Linkage Group-Part 1
3G***63Linkage Group-Hydraulic Power Case; Hydrostatic Power Case Linkage Group1
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3g1163 Hydrostatic Power Case And Linkage Group-Part 1 Of 2
3G***63Linkage Group-Hydraulic Power Case; Hydrostatic Power Case Linkage Group1
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3g1163 Hydrostatic Power Case Linkage Group-Part 2
3G***63Linkage Group-Hydraulic Power Case; Hydrostatic Power Case Linkage Group1
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3g1163 Hydrostatic Power Case And Linkage Group-Part 2 Of 2
3G***63Linkage Group-Hydraulic Power Case; Hydrostatic Power Case Linkage Group1
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3g1163 Hydrostatic Power Case Linkage Group-Part 2 Of 2
3G***63Linkage Group-Hydraulic Power Case; Hydrostatic Power Case Linkage Group1
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3g0623 Servo Linkage Group-Part 2 0f 2
3g0623 Servo Linkage Group-Part 1 Of 2
4t1695 Piston Motor Group-Part 1
4t1695 Piston Motor Group-Part 2
4t0330 Link Motor Group-Part 1
3g3842 Link Motor Group-Fixed Displacement-2 Required-Part 2
3g3842 Link Motor Group-Fixed Displacement-2 Required-Part 1
4t0330 Link Motor Group-Part 2
4t1582 Piston Motor Gp-Part 2 Of 2
4t1582 Piston Motor Gp-Part 1 Of 2
4t1582 Piston Motor Group-Part 1 Of 2
4t1582 Piston Motor Group-Part 2 Of 2
9j2091 Axial Piston Pump Group-Variable Displacement-L.H.
9J***91Pump Group-Axial Piston; Axial Piston Pump Group-L.H.1
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9j2090 Axial Piston Pump Group-Variable Displacement-R.H.
9J***90Pump Group-Axial Piston; Axial Piston Pump Group-R.H.1
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3g1803 Charge Pump Group-Fixed Displacement
3G***03Pump Group-Charge; Charge Pump Group1
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4t5739 Motor Retainer Group-Service
0S***30Pin (Part Of 2s***65 Assem.)1
4T***37Shaft1
4T***38Retainer1
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7p6504 Sprocket Segment Group
4t5569 Valve Group
9j1839 Relief Valve Group
9J***39Valve Group; Charge Relief Valve Group1
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9j9324 Underspeed Valve Group
9J***24Valve Group-Actuator; Underspeed Valve Group1
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4t2718 Valve Group
1u2043 Cooler By-Pass Valve Group
1U***43Valve Group-Bypass; Cooler By-Pass Valve Group1
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3g4070 Cooler By-Pass Valve Group
3G***70Valve Group-Bypass; Cooler By-Pass Valve Group1
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3g8448 Underspeed Override Valve Group
3G***48Valve Group-Override; Underspeed Override Valve Group1
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1u4771 Pilot Overspeed Valve Group
1U***71Valve Group-Pilot; Pilot Overspeed Valve Group1
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3g0257 Servo Relief Valve Group
9j0365 Charge And Main Relief Valve Group-L.H.-Part 1
9j0365 Charge And Main Relief Valve Group-L.H.-Part 2
9j8554 Charge And Main Relief Valve Group-R.H.-Part 2
9j8554 Charge And Main Relief Valve Group-R.H.-Part 1
3g4594 Servo Valve Group-L.H.
3g4595 Servo Valve Group-R.H.
3g3253 Shuttle Valve Group
4t3056 Shuttle Valve Group
Service Equipment And Supplies
8k7534 Fire Extinguisher Group
8g5101 Fire Extinguisher Group
Gasket Kits
6V***87Valve Grinding0
6V***88Central And Lower Structure0
6V***89Front Structure Engine Serial No.0
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8f9866 Grease Gun
6v2121 Hand Tool Group
Name Plates And Films
3N***90Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine1
4B***58Screw (Identification Plate) Mounting32
5P***97Plate-Warning (Universal); In Operators Compartment On Left Front Panel Near Top1
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Starting And Electrical System
6n9294 Alternator Group-24 Volt, 35 Ampere-Part 1*R
6N***94Alternator Group; (24-Volt, 35-Ampere)1
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6n9294 Alternator Group-24 Volt, 35 Ampere-Part 2*R
6N***94Alternator Group; (24-Volt, 35-Ampere)1
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6n7223 Alternator Group-24 Volt, 50 Ampere
6n7262 Alternator Group-24 Volt, 35 Ampere
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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5s9088 Alternator Group-24 Volt, 50 Ampere-Part 1-Type 1*R
9g9538 Alternator Group-24 Volt, 50 Ampere
5s9088 Alternator Assembly-24 Volt, 50 Ampere-Type 2*R
3T***88Alternator Group-Charging; Alternator Group Delco-Remy 24 Volt, 50 Ampere1
5S***88Alternator Group-Charging1
9G***38Alternator Group-Charging1
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5s9088 Alternator Group-24 Volt, 50 Ampere-Part 2-Type 1*R
7p1044 Battery And Wiring Group-24 Volt-Part 3 Of 3
7p1044 Battery And Wiring Group-24 Volt-Part 1 Of 3
7p1044 Battery And Wiring Group-24 Volt-Part 2 Of 3
7p5818 Heavy Duty Battery Group-Type 1
7P***18Battery Group; Heavy Duty Battery Group1
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7p5818 Heavy Duty Battery Group-Type 2
7P***18Battery Group; Heavy Duty Battery Group1
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7p6502 Cover Group-Open Rops
7P***02Cover Group-Protection; Miscellaneous Covers Group--Open Rops1
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7p9804 Harness Assembly
8g3856 Harness Assembly
7p9510 Harness Assembly
8g3857 Harness Assembly
8g3131 Harness Assembly
8g3132 Harness Assembly
8g0410 Harness Assembly
7p1041 Electric Horn Group
7g8970 Dash Lamp Group
6n7989 Flood Lamp Group-24 Volt
6N***89Lamp Group-Flood; -Ladder Access1
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8g0961 Lighting Arrangement-Open Rops-2 Lamp
7P***21Lighting Group-2 Lamp1
7P***02Cover Group-Protection; Miscellaneous Covers Group--Open Rops1
8G***61Lighting Ar1
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7p1121 Lighting Group-2 Lamp
7p6908 Lighting Group-4 Lamp-Type 3
7p6908 Lighting Group-4 Lamp-Type 1
7p6908 Lighting Group-4 Lamp-Type 2
8n2447 Electric Starting Motor Group-Delco-Remy-24 Volt-Part 2
8n2447 Electric Starting Motor Group-Delco-Remy-24 Volt-Part 1
3t3421 Solenoid Assembly-24 Volt
3t4704 Solenoid Assembly-24 Volt
7p1076 Ether Starting Aid Group
7P***76Starting Aid Group-Ether; Ether Starting Aid Group1
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8g3559 Low Temperature Starting Arrangement
6N***39Heater Group-Jacket Water; Jacket Water Heater Group1
7P***76Starting Aid Group-Ether; Ether Starting Aid Group1
7P***18Battery Group; Heavy Duty Battery Group1
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3t2756 Electric Starting Motor Group-24 Volt-Delco-Remy-Part 3 Of 3
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
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3t2371 Electric Starting Motor Group
3T***71Starting Motor Group-Electric; Electric Starting Motor Group1
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3t2764 Electric Starting Motor Group*R
3T***71Starting Motor Group-Electric; Electric Starting Motor Group1
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
3T***64Starting Motor Group-Electric1
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6n1678 Electric Starting Motor Group
3t2756 Electric Starting Motor Group-24 Volt-Delco-Remy-Part 1 Of 3
3T***56Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy1
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3t2756 Electric Starting Motor Group-24 Volt-Delco-Remy-Part 2 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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7n8000 Switch Assembly
7N***00Switch As-Toggle; (Warning Light)1
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9g1480 Starter Switch Group
7p1043 Back-Up Warning Group
7p1042 Operator Warning Group
Steering Clutches And Brakes
7p8945 Parking Brake Group
7p6603 Brake Control Group-Part 2
7p6603 Brake Control Group-Part 1
7p6610 Retarder Brake Valve Group
7P***10Control Group-Spd Override & Brk1
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8g0143 Steering Control Group-Part 1
8g0143 Steering Control Group-Part 2
7p8328 Pump Group-Hand
8g6272 Pump Group-Hand

953 serial number reference

The PIN plate is on the left side of the machine, on the support arm just ahead of the cab, with the number also stamped into the frame beside the plate. On this pre-2002 Cat format the first three characters (e.g. 20Z, 76Y) are the prefix identifying the build series/plant, and the digits that follow are the sequential unit number within that run - so a plate reading 20Z00267 is unit 267 of the 20Z run.

PrefixIdentifies
05ZUSA-built, LGP (Low Ground Pressure) configuration
76YUSA-built, standard-gauge configuration
44ZJapan-built, LGP configuration
78YJapan-built, standard-gauge configuration
20ZFrance-built, LGP configuration
77YFrance-built, standard-gauge configuration

Frequently asked questions

What engine does the Caterpillar 953 track-type loader use?

This vintage 953 (built roughly 1981-1993) runs a Cat 3204 direct-injection, turbocharged four-cylinder diesel rated around 82 kW (110 hp), mechanically governed with no electronic engine management.

What is the operating weight of the Caterpillar 953?

Operating weight is about 14,100 kg (31,080 lb), varying with standard-gauge or LGP (low ground pressure) track configuration.

What replaced the Caterpillar 953?

The 953B replaced this vintage 953, moving up to a Cat 3116 turbocharged six-cylinder engine. Caterpillar's unrelated, current-production 'Track Loader' also carrying the 953 name is a separate, later reuse of the number and is not this machine's successor.

What 953 owners discuss

My 953 loses speed or bogs down once it warms up, or when I run the throttle to full - is that normal?
This is one of the most repeated complaints about this loader. Some owners find the machine creeps along once the hydrostatic drive reaches operating temperature; others find it slows noticeably as soon as the engine speed lever goes to the fast position, and end up running at partial throttle just to get usable speed. Before condemning the drive pump or motor, check that the linkage running from the foot pedals down to the pump control box is completely free and correctly rigged, and confirm the charge pump is supplying full flow to the system. A binding or mis-rigged linkage, not a worn pump, turns out to be the most common explanation once a machine has some hours on it.
Does the 953 use steering clutches or brakes like other crawler loaders of this era?
No. Each track has its own hydrostatic circuit, and direction is set entirely by varying the two drive pumps' output, not by a clutch-and-brake pack. If one track won't stop, slow down, or reverse the way it should, the cause is almost always in the pedal linkage feeding the pump control rather than a worn brake band. Look for a missing or loose pin or bolt connecting the pedal to its control lever, and confirm the full linkage travels freely with no binding from packed dirt or a bent rod before condemning the pump itself. Because a loss of directional control on a machine this size is a safety issue, have your dealer verify pump and linkage function before putting it back to work.
Does it matter what oil goes in the hydrostatic drive?
Yes, more than it would on a conventional powershift machine. The factory calls for a straight light-weight oil in the hydrostatic circuit, and owners are consistent that this isn't a spec worth improvising on: the internal tolerances are tight enough that running the wrong viscosity has been reported to work fine for a short while and then leave the machine crawling. Use a quality branded oil that meets the Caterpillar hydraulic fluid specification rather than substituting a heavier product just because it's on the shelf.
What undercarriage wear points should I watch on a 953 this age?
The oscillating track-roller-frame design and sealed, lubricated track were both standard on this loader and hold up well when maintained, but a few wear points come up again and again in owner discussions. The track adjuster rod is often the first thing to get delicate once the tracks themselves have run out their sealed life. The equalizer bar ends, center pin, and pivot shafts take the oscillating loads and deserve a close look, along with the sprocket segment hardware, which is worth checking to confirm it's still welded or bolted as it should be rather than backing out. Beyond that, treat track sag and roller wear the same way you would on any crawler loader of this size and weight class.
What's the reputation of the turbocharged Cat 3204 in this loader?
Mixed. It's a simple, mechanically governed four-cylinder diesel that's easy to work on, but the turbocharged version fitted to this loader has a reputation among owners as underpowered for the machine's weight, and some ask openly why Caterpillar didn't use the larger engine fitted to the bigger 955 instead. The factory piston and ring package on this engine allows more blow-by than later designs, so some smoke and crankcase blow-by at operating temperature is normal wear behavior rather than proof of a bad engine, though it does make a compression check on a used, well-worn unit less conclusive on its own. A no-start with white smoke in cold weather usually points to the glow plugs; a no-start with no fuel delivery points to the fuel shutoff solenoid or a stuck governor rack on the injection pump rather than the injectors themselves.
What electrical problems show up on a 953 this old?
Most complaints trace back to age and corrosion rather than a wiring design fault. A no-crank condition, or a starter that clunks once and stops, is more often a corroded battery terminal, ground strap, or solenoid contact than a failed starter motor, and owners recommend cleaning every ground connection and battery post before swapping parts. The gauge cluster on this loader monitors coolant temperature, drive pump oil temperature, hydraulic tank oil temperature, and fuel level, so an erratic or dead gauge is usually a bad connector or ground at the sending unit rather than the gauge itself. Given the loader's age, brittle wire insulation and corroded connectors under the dash are worth a visual check any time an electrical fault shows up.
What should I check before buying a used vintage 953?
Warm the machine up and drive it in a straight line for a good stretch; it should track true, and any noticeable pull to one side can point to a worn drive pump or track motor, which is an expensive repair. Walk the undercarriage and check the equalizer bar ends, center pin, pivot shafts, track adjusters, idler guards, and sprocket segment hardware for wear or missing fasteners. Pull the engine oil dipstick and check under the valve cover for water contamination, milky oil, or rust, especially on a machine that's sat idle for a while. Ask for service history to confirm the hydrostatic drive has been kept on the correct fluid, since pump, motor, and undercarriage repairs are the biggest expense on one of these, and have your dealer verify drive and hydraulic condition on anything you're seriously considering.

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

Serial-range & configuration variants

This page covers the Caterpillar 953. Related factory variants of the same model family:

953

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