Caterpillar 935C
Caterpillartrack-type loadertrack loader

Caterpillar 935C

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar 935C is a crawler loader designed for specialized earthmoving and material handling. This machine class features a 3204 direct injection engine delivering approximately 78 to 80 hp (58-60 kW) net power. The standard operating weight is roughly 32,895 lb (14,920 kg), with configurations offering varying dimensions such as an 8 ft (2.4 m) width and a 20 ft (6.1 m) length. The lineage includes the predecessor 935B and the subsequent 935C II series.

Evolution across the 935C generations focused on operator station improvements, increased breakout force, and advanced features like pedal steer or sealed lubricated tracks (SALT). In today's used market, the 935C remains a significant asset due to its robust 3204 engine and high availability of aftermarket undercarriage and hydraulic parts. Its durability makes it a preferred choice for secondary applications where reliable crawler-mounted performance is required.

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 935C specifications

Engine

Engine Model3204
Net Power80 hp (59.7 kW)
Displacement317.4 cu in (5.2 L)

Weights

Operating Weight8,759 kg (19,310.3 lb)
Static Tipping Load12,795.7 lb (5,804 kg)

Dimensions

Length With Bucket On Ground14.17 ft in (4,318 mm)
Width To Outside Of Tracks5.84 ft in (1,780 mm)
Height To Top Of Cab8.8 ft in (2,680 mm)
Ground Clearance1.03 ft in (312 mm)
Clearance At Full Height And Dump8.48 ft in (2,583 mm)
Reach At Dump Height2.85 ft in (866 mm)
Track Gauge55.91 in (1,420 mm)
Length Of Track On Ground6.24 ft in (1,900 mm)
Track Shoe Width13.98 in (355 mm)

Performance

Max Speed10.5 km/h (6.6 mph)
Ground Pressure59 kPa (8.56 psi)
Breakout Force - Std Bucket15,098 lb (67.2 kN)

Blades/Buckets

Bucket Capacity - Struck0.9 m3 (1.1 yd3)
Bucket Capacity - Heaped1 m3 (1.4 yd3)

Service Capacities

Fuel Capacity116 L (30.7 gal)
Hydraulic System Fluid Capacity57 L (15.1 gal)

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

935C fluids & capacities

SystemCapacityRecommended fluid
Engine Crankcase (w/ filter)not specifiedCat DEO; SAE 15W-40 or SAE 10W-30 preferred for ambient temperatures between -18°C (0°F) and 40°C (104°F). Use SAE 0W-40 for extreme cold (-40°C / -40°F) or SAE 50 for hot climates (above 10°C/50°F). For engines with aftertreatment, use Cat DEO-ULS (API CJ-4). For older engines without aftertreatment, use Cat DEO (API CK-4 or CJ-4). Engine model: 3204 (direct injection, four-cylinder). Note: 935C II series may feature 80 hp net power; standard 935C features 78 FWHP/80 hp range depending on configuration/series.
Cooling Systemnot specifiedCat coolant
Fuel Tank116 L (30.7 gal)not specified
Transmission/Powertrain (Powershift Transmission + Bevel Gear/Steering Compartments)not specifiedCat TDTO; Cat TDTO Cold Weather for operations below -25°C.
Final Drives (each)not specifiedCat TDTO
Hydraulic System/Tank57 L (15.1 gal)Cat HYDO Advanced 10 (SAE 10W) for cold to moderate temperatures; Cat HYDO Advanced 30 (SAE 30W) for moderate to hot temperatures. Biodegradable hydraulic oils available for sensitive areas.
Greasenot specifiedCat Multipurpose Grease for low-load/low-speed; Cat Advanced 3Moly Grease for medium-load/medium-speed; Cat Ultra 5Moly Grease for high-load/high-speed.

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

Caterpillar 935C maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and condition
  • Inspect hydraulic fluid level via sight glass
  • Verify coolant level and cap integrity
  • Drain water from fuel/water separator
  • Monitor air filter restriction indicator
  • Inspect tracks for tension and shoe condition
Every 250 h
  • Change engine oil and filter
  • Grease all pivot points, bucket, and Z-bar
  • Drain fuel water separator
  • Perform visual inspection of belts and hoses
  • Check air filter primary element
Every 500 h
  • Replace fuel filters
  • Replace hydraulic return filter
  • Conduct battery service and terminal inspection
  • Perform detailed undercarriage inspection
  • Test coolant SCA levels
Every 1,000 h
  • Perform hydraulic oil sample analysis (S.O.S)
  • Service final drive oil
  • Inspect turbocharger for leaks or play
  • Check ROPS bolt torque
  • Measure undercarriage wear components
Every 2,000 h
  • Change hydraulic system oil
  • Perform coolant flush and replacement
  • Service transmission system
  • Conduct comprehensive structural inspection
  • Execute major component evaluation

Servicing the 935C beyond the schedule

Predictive Maintenance & Fluid Analysis

Utilize Cat S.O.S Services to monitor engine oil, hydraulic fluid, and coolant. Analyze wear metals like iron or copper and check for silicon contamination from dirt ingestion. For the 935C's hydraulic system, maintain particle counts within ISO cleanliness standards to prevent pump damage. Regular sampling of transmission and final drive oils detects gear wear before catastrophic failure occurs.

Corrective & Common Repairs

Monitor hydraulic hoses for cracks or abrasion to prevent pressure loss. Address leaks in the 3204 engine's fuel system promptly to avoid air ingestion. Inspect the undercarriage for worn rollers, idlers, or loose track shoes. If hydraulic performance drops, inspect the valve group and cylinders for internal bypass or seal degradation that affects bucket breakout force.

Overhaul & Rebuild Points

Plan major interventions when undercarriage wear measurements exceed service limits. Evaluate the 3204 engine for compression loss or excessive smoke, signaling a need for top-end or full rebuild. During PM4 intervals, perform comprehensive structural inspections of the loader linkage and boom welds. Rebuild final drives if metal particles are detected during routine oil sampling.

Seasonal & Environment Servicing

In dusty or quarry environments, check air filters daily and clean radiator fins to prevent overheating. For high-load operations, shorten engine oil drain intervals. In cold climates, utilize appropriate lubricants and inspect battery condition for extreme temperature resilience. Ensure the cooling system is free of debris to maintain optimal thermal regulation during heavy summer duty cycles.

935C common service parts

Part numberPart
6V-7614Film-IdentificationCheck fitment →
6V-2219Kit-GasketCheck fitment →

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935C fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
110-0Engine Coolant Temperature — Above NormalLow coolant level, thermostat failureInspect cooling system; refill coolant; test thermostat
110-3Engine Coolant Temp Sensor — Voltage HighOpen circuit or sensor failureCheck wiring; replace sensor if confirmed faulty
174-3Engine Fuel Temperature — Voltage Above NormalOpen circuit in sensor wiringInspect harness and replace sensor if necessary
190-8Engine Speed — Abnormal FrequencySpeed sensor air gap, sensor failure, or tone ring damageCheck sensor gap; test speed sensor and tone ring
41-38-Volt DC Supply — Voltage Above NormalShort to power on 8V reference circuitInspect sensors sharing the 8V supply and isolate fault
41-48-Volt DC Supply — Voltage Below NormalShort to ground on 8V reference circuitDisconnect sensors one at a time to locate short

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

935C attachments & work tools

Blades

Front loader bucket is available as a standard attachment. Cutting edge replacement parts are supported for this model.

Rippers

Hydraulic valve configurations exist to support ripper operations. Specific single-shank or multi-shank weight and width data not documented in provided sources.

Winches

Not explicitly documented for the 935C model in provided technical specifications.

Drawbars/counterweights

Not specified in available technical documentation.

Cab/ROPS guarding options

Vandalism guard groups are available. ROPS configurations include enclosed arrangements with integrated heater groups.

Hydraulic arrangement notes

Valve bank configurations vary by requirement: 3-valve banks support lift, tilt, and ripper; 4-valve banks support lift, tilt, multi-purpose bucket, and ripper. Hydraulic oil requirements specify Cat HYDO Advanced.

All 935C assemblies by section

Every catalogued assembly group for the Caterpillar 935C. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
7w8765 Air Cleaner Gp
7w8764 Air Cleaner Gp
7e0831 Exhaust Extension Gp
4n0312 Exhaust Extension Gp
1w5054 Lines Gp-Air
1W***54Lines Group-Air; Air Lines Group1
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7n4971 Manifold Gp-Exhaust
7N***71Manifold Group-Exhaust; Exhaust Manifold Group1
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7n4970 Muffler Gp
5m2735 Prescreener Gp
5M***35Prescreener Group; Prescreener Group----------------------.1
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Basic Engine
6n2393 Camshaft Gp-Single
6N***93Camshaft Group-Single; Camshaft Group-Single1
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2w7486 Cover Gp-Valve Mechanism
2W***86Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
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Crankshaft Bearing Replacement
7w3926 Crankshaft Gp
7W***26Crankshaft Group; Crankshaft Group1
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1w4327 Cylinder Block As
2w7902 Cylinder Block As
1w4326 Cylinder Block Gp
1W***26Cylinder Block Group; Cylinder Block Group1
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7c3805 Cylinder Head As*R
7c2296 Cylinder Head As
7w9390 Cylinder Head As
7c2320 Cylinder Head As*R
6n2467 Cylinder Head Gp*R
6N***67Cylinder Head Group; Cylinder Head Group1
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7w9392 Cylinder Head Gp*R
7n5141 Drive Gp-Fan
7N***41Drive Group-Fan; Water Pump Drive Group1
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7n6937 Flywheel Gp
1w1355 Gear Gp-Front
1W***55Gear Group-Front; Front Gear Group1
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7n6344 Housing Gp-Flywheel
7N***44Housing Group-Flywheel; Flywheel Housing Group1
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2w4384 Housing Gp-Front
2W***84Housing Group-Front; Front Housing Group1
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1w5554 Lifting Gp-Engine
6n8370 Pan Gp-Oil
8n4079 Rod & Piston Gp
8N***79Piston & Rod Group; Connecting Rod And Piston Group1
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2w8419 Piston Gp
7n5138 Pulley Gp-Crankshaft
7N***38Pulley Group-Crankshaft; Auxiliary Drive Pulley Group1
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7c7743 Support Gp-Engine & Transmission
1w5720 Valve Mechanism Gp
1W***20Valve Mechanism Group; Valve Mechanism Group1
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Cab, Gauges And Accessories
7v9507 Belt Gp-Seat
8y4029 Seat Belt Gp
8y4037 Seat Belt Gp
7v9506 Belt Gp-Seat
6s9800 Cab Gp-Part 4 Of 4
6s9800 Cab Gp-Part 2 Of 4
6s9800 Cab Gp-Part 3 Of 4
6s9800 Cab Gp-Part 1 Of 4
5g1020 Dash Gp
5g0190 Door Gp-L.H.-Part 2 Of 2
5g0190 Door Gp-L.H.-Part 1 Of 2
5g0200 Door Gp-R.H.-Part 2 Of 2
5g0200 Door Gp-R.H.-Part 1 Of 2
5g0142 Gauge Gp
8y1356 Guard Gp-Vandalism
5g2988 Handle Gp-Assist
5G***88Handhold Group; Handle Group--Assist1
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5g0537 Heater Gp-Cab
5G***37Heater Group-Cab; Cab Heater Group1
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8y3080 Mounting Gp-Cab
5g2295 Mounting Gp-Cab
5g2002 Pressurizer Gp-Cab
5G***02Pressurizer Group; Cab Pressurizer Group1
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5g2055 Pressurizer Gp-Part 3 Of 3
5g2055 Pressurizer Gp-Part 2 Of 3
5g2055 Pressurizer Gp-Part 1 Of 3
5g0001 Rollover Ar
5G***01Rops Ar; Rollover Ar1
5G***49Washer Group-Windshield; Windshield Washer Group1
5G***57Wiring Group-Cab; Cab Wiring Group1
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8y1143 Rops Ar-Enclosed
5G***01Rops Ar; Rollover Ar1
5G***37Heater Group-Cab; Cab Heater Group1
5G***95Mounting Group-Cab1
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8y1561 Rops Ar-Open
5G***60Mounting Group-Rops1
5G***73Rops Group1
8Y***61Rops Ar-Open1
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5g0673 Rops Gp
8y1177 Seat & Support Gp
8y0222 Seat & Support Gp
6s7596 Seat Gp-Part 1 Of 2
6s7596 Seat Gp-Part 2 Of 2
5g2334 Seat Gp-Reversible
5G***34Seat Group; Reversible Seat Group1
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2v7961 Suspension As-Seat
5g0049 Washer Gp-Windshield
5G***49Washer Group-Windshield; Windshield Washer Group1
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5g0974 Wiper Gp
5g0457 Wiring Gp-Cab
5G***57Wiring Group-Cab; Cab Wiring Group1
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Chassis And Undercarriage
5g1136 Brace Gp-Lift Cylinder
5G***36Brace Group-Lift Cylinder; Lift Cylinder Brace Group1
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6s9359 Cleaner Bar Gp-Track
5g8747 Counterweight Gp
5g0796 Counterweight Gp
5g0441 Counterweight Gp-Front
5g2628 Counterweight Gp-Sprocket
5g0779 Drawbar Gp
5g8720 Frame Gp-Loader
8y2825 Frame Gp-Loader
8y1103 Frame Gp-Track Roller
5g1185 Guard Gp-Bottom
5g2327 Guard Gp-Brush
5g2342 Guard Gp-Brush
8y0743 Guard Gp-Radiator
6s6166 Guard Gp-Hinged Radiator
6S***66Guard Group-Radiator Hinged; Radiator Hinger Guard Group1
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6s8323 Guard Gp-Hinged Radiator
5g4371 Guard Gp-Recoil Mechanism
8y0269 Guard Gp-Track Roller
8y0216 Hood & Guard Gp
8y2309 Hood & Guard Gp
6s3864 Hook Gp-Front Pull
5g4380 Idler Gp-Front-Part 2 Of 2
5g4380 Idler Gp-Front-Part 1 Of 2
6y1511 Link As-Track
5g0460 Mounting Gp-Rops
3t4352 Roller Gp-Single Flange-6 Required
3T***52Roller Group-Track; Single Flange Track Roller Group1
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3t4353 Roller Gp-Double Flange-4 Required
3T***53Roller Group-Track; Double Flange Track Roller Group1
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6s3609 Roller Gp-Track Carrier-2 Required
6S***09Roller Group-Track Carrier; Track Carrier Roller Group1
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6y3882 Seal & Bushing Gp-Track
5G***47Stopper; (Rubber)37
6T***06Seal Assembly74
6Y***73Plug; (Clear)37
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5g2987 Shield Gp-Heat
5G***87Shield Group-Heat; Shield Group--Heat1
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8y2911 Spring Gp-Recoil
5g0377 Support Gp-Undercarriage
5g3575 Suppression Gp
8y0872 Sweep Gp
6y1672 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)144
5A***87Bolt-Track-( 9/16 X 18 X 3.0 In)4
6Y***11Link As-Track1
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9n4176 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)144
5A***87Bolt-Track-( 9/16 X 18 X 3.0 In)4
6Y***11Link As-Track1
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6y1671 Track Gp-2 Required
4K***38Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In)144
5A***87Bolt-Track-( 9/16 X 18 X 3.0 In)4
6Y***11Link As-Track1
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Cooling System
7c7744 Cooler Gp-Engine Oil
9n5659 Cooler Gp-Engine Oil
8y2535 Cooler Gp-Hydraulic Oil
5g2765 Cooler Gp-Hydraulic
7n9989 Fan Gp-Blower
4n2220 Fan Gp-Suction
4N***20Fan Group-Suction; Suction Fan Group1
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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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5g1378 Lines Gp-Torque Converter Cooler
4n0188 Lines Gp-Water
4N***88Lines Group-Water; Water Lines Group1
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4n0660 Pump Gp-Water
4N***60Pump Group-Water; Water Pump Group1
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7c7741 Radiator Gp
7c7740 Radiator Gp
Engine Arrangement
9y0792 Engine Ar-Part 1 Of 2
1N***24Filter Group-Oil; Oil Filter Group1
1W***67Gauge Group-Oil Level (Dipstick)1
1W***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
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7e6668 Engine Ar-Part 2 Of 2
1W***20Valve Mechanism Group; Valve Mechanism Group1
2W***03Pump Group-Fuel Transfer; Fuel Transfer Pump Group1
2W***97Pump Group-Oil-Without Housing1
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9y0792 Engine Ar-Part 2 Of 2
1W***20Valve Mechanism Group; Valve Mechanism Group1
2W***03Pump Group-Fuel Transfer; Fuel Transfer Pump Group1
2W***97Pump Group-Oil-Without Housing1
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7e6668 Engine Ar-Part 1 Of 2
1N***24Filter Group-Oil; Oil Filter Group1
1W***67Gauge Group-Oil Level (Dipstick)1
1W***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
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Fuel System And Governor
2w0262 Camshaft As
5g3612 Cap Gp-Fuel Tank Protection
5G***12Cap Group-Protection; Fuel Filler Protection Cap Group1
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5g8748 Control Gp-Governor
5g2499 Extension Gp
9y1897 Filter Gp-Fuel
9Y***97Filter Group-Fuel; Fuel Filter Group1
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7e3734 Filter Gp-Fuel
1w8730 Governor Gp-Part 2 Of 3
1w8730 Governor Gp-Part 3 Of 3
1w8730 Governor Gp-Part 1 Of 3
5g4583 Lines Gp-Fuel
7n0042 Lines Gp-Fuel Injection
1w1354 Lines Gp-Fuel Injection
1W***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
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2w0263 Pump Gp-Fuel Injection
1w6539 Pump Gp-Fuel Injection
4n4314 Pump Gp-Fuel Priming
4N***14Pump Group-Fuel Priming; Fuel Priming Pump Group1
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1w0568 Pump Gp-Fuel Transfer
2w4403 Pump Gp-Fuel Transfer
2W***03Pump Group-Fuel Transfer; Fuel Transfer Pump Group1
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7w0189 Governor & Fuel Injection Pump Gp
7W***89Pump Group-Gov & Fuel Inj; Governor & Fuel Injection Pump Group1
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8y0217 Tank Gp-Fuel
4w5063 Torque Control Gp
Hydraulic System
9g9288 Cover Gp-Protection
9G***88Protection Cover Group; -Hydraulic Tank-Steering Tank Fill Cap-Hydraulic Tank Fill Cap1
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5g0332 Control Gp-Hydraulic Hand
5g0331 Control Gp-Hydraulic Hand
5g0333 Control Gp-Hydraulic Hand
5G***33Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper1
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6e0214 Cylinder Gp-Lift-Lh (Change 00)
6E***14Cylinder Group; Cylinder Gp-Lift-Lh1
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6e0212 Cylinder Gp-Lift-Rh (Change 00)
6E***12Cylinder Group; Cylinder Gp-Lift-Rh1
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5g3446 Cylinder Gp (Change 02)
5G***46Cylinder Group; Slider Lock Cylinder Group1
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3g5767 Cylinder Gp-Backhoe Boom (Change 03-05)
3g5905 Cylinder Gp-Backhoe Bucket (Chg. 02-04)
3g5905 Cylinder Gp-Backhoe Bucket (Chg. 05)
1u2655 Cylinder Gp-Backhoe Stabilizer-Rh (Change 00-03)
1U***55Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-R.H1
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1u2656 Cylinder Gp-Backhoe Stabilizer-Lh (Change 00-03)
1U***56Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-L.H1
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3g5771 Cylinder Gp-Backhoe Stick (Chg. 04)
3g5771 Cylinder Gp-Backhoe Stick (Chg. 01-03)
3g7365 Cylinder Gp-Bucket
3G***65Cylinder Group-Bucket; Cylinder Gp-Multi-Purpose Bucket1
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7j5893 Cylinder Gp-Lift-Rh-(Change 07-09)
7j5894 Cylinder Gp-Lift-Lh (Change 07-09)
9t6705 Cylinder Gp- Lift-Lh (Change 00-01)
9T***05Cylinder Group-Lift-Lh; Cylinder Gp-L.H. Lift1
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9t6704 Cylinder Gp-Lift-Rh (Change 00-01)
9T***04Cylinder Group-Lift-Rh; Cylinder Gp-R.H. Lift1
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7j9920 Cylinder Gp-Ripper (Change 06-07)
7j9920 Cylinder Gp-Ripper (Chg 08)
3g6792 Cylinder Gp-Stabilizer (Change 01-02)
3G***92Cylinder Group-Stabilizer; Stabilizer Cylinder Group1
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4t0963 Cylinder Gp-Tilt (Change 01-02) 2 Required
5g2341 Gauge Gp-Hydraulic Oil Temperature
5G***41Gauge Group-Hydraulic Oil Temp; Hydraulic Oil Temperature Gauge Group1
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5g0548 Hydraulic Ar
1U***25Valve Group-Bank 3; Valve Gp-Bank-3 Valve1
5G***33Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper1
5G***43Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper1
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5g9405 Hydraulic Ar-3 Valve
1U***24Valve Group-Bank 3; Valve Gp-Bank-3 Valve1
5G***32Control Group-Hydraulic Hand1
5G***50Mounting Group-Attachment; Mounting Gp-Attachment Lines1
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5g9406 Hydraulic Ar-4 Valve
1U***26Valve Group-Bank 4; Valve Gp-Bank-4 Valve1
5G***32Control Group-Hydraulic Hand1
5G***33Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper1
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5g3529 Kickout & Positioner Gp-Bucket-Part 1 Of 2
5g3529 Kickout & Positioner Gp-Bucket-Part 2 Of 2
5g3669 Lines Gp-Boom Cylinder
5G***69Lines Group-Boom Cylinder; Room Cylinder Lines Group1
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5g2612 Lines Gp-Boom Cylinder
5G***12Lines Group-Boom Cylinder; Boom Cylinder Lines Group1
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5g3672 Lines Gp-Bucket Cylinder
5G***72Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group1
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5g2619 Lines Gp-Bucket Cylinder
5G***19Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group1
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5g9399 Lines Gp-Front
5G***99Lines Group-Front; Lines Gp-Front-Mp Bucket1
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5g1652 Lines Gp-Hydraulic-Part 2 Of 2
5G***52Lines Group-Hydraulic; Hydraulic Lines Group1
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5g5925 Lines Gp-Hydraulic
5G***25Lines Group-Hydraulic; Lines Gp-Hydraulic-1 Circuit1
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5g1652 Lines Gp-Hydraulic-Part 1 Of 2
5G***52Lines Group-Hydraulic; Hydraulic Lines Group1
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5g0408 Lines Gp-Lift Cylinder
5g0443 Lines Gp-Pump
5g0543 Lines Gp-Rear Attachment
5G***43Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper1
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6s3559 Lines Gp-Ripper
6S***59Lines Group-Ripper; Ripper Lines Group1
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5g3682 Lines Gp-Stabilizer
5G***82Lines Group-Stabilizer; Lines Group-Stabilizer Cylinder1
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5g2216 Lines Gp-Stabilizer
5G***16Lines Group-Stabilizer; Stabilizer Lines Group1
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5g2618 Lines Gp-Stick Cylinder
5G***18Lines Group-Stick; Stick Cylinder Lines Group1
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5g3675 Lines Gp-Stick Cylinder
5G***75Lines Group-Stick; Stick Cylinder Lines Group1
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5g3679 Lines Gp-Swing Actuator
5G***79Lines Group-Swing Actuator; Swing Actuator Lines Group1
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5g2606 Lines Gp-Swing Actuator
5G***06Lines Group-Swing Actuator; Swing Actuator Lines Group1
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8y1137 Lines Gp-Tilt Cylinder-Part 2 Of 2
5g0407 Lines Gp-Tilt Cylinder
8y1137 Lines Gp-Tilt Cylinder-Part 1 Of 2
5g8750 Mounting Gp-Attachment
5G***50Mounting Group-Attachment; Mounting Gp-Attachment Lines1
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5g4580 Pump & Lines Gp
5G***80Pump & Lines Group; Pump & Lines Gp-Backhoe1
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5g3774 Pump & Lines Gp
5g2865 Pump & Lines Gp
5G***65Pump & Lines Group; Pump And Lines Group1
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5g8733 Pump & Lines Gp
2M***80Seal--To Connector Pump Outlet1
5G***29Panel As; (L.H.)1
5G***80Pump & Lines Group; Pump & Lines Gp-Backhoe1
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3g5386 Pump Gp-Gear
3G***86Pump Group-Gear; Gear Pump Group-Shimadzu Seisakusho1
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8j4514 Pump Gp-Gear
3g5046 Pump Gp-Gear
1u0414 Pump Gp-Gear
8j4515 Pump Gp-Gear
8J***15Pump Group-Gear; Gear Pump Group-Tyrone1
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4t0384 Pump Gp-Piston
5g0099 Tank & Filter Gp-Hydraulic
5g0013 Tank Gp-Hydraulic
5g3687 Valve & Lines Gp
5G***87Valve & Lines Group; Lines And Valves Group1
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5g3692 Valve & Lines Gp
5G***92Valve & Lines Group; Lines And Valve Group--Sideshift Lock1
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5g2582 Valve & Lines Gp
5G***82Valve & Lines Group; Valve And Lines Group1
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3g0777 Valve Gp
1u2576 Valve Gp-Bank
1u1023 Valve Gp-Bank
1u1024 Valve Gp-Bank
1U***24Valve Group-Bank 3; Valve Gp-Bank-3 Valve1
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1u1025 Valve Gp-Bank
1U***25Valve Group-Bank 3; Valve Gp-Bank-3 Valve1
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1u1026 Valve Gp-Bank
1U***26Valve Group-Bank 4; Valve Gp-Bank-4 Valve1
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6s4767 Valve Gp-Breaker Relief
8j9471 Valve Gp-Lift Cylinder Check
8J***71Valve Group-Check; -Lift Cylinder Circuit1
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9j0717 Valve Gp-Control
6s9822 Valve Gp-Control
3g0778 Valve Gp-Control
3G***78Valve Group-Control; (Rh Stabilizer)1
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5g0334 Valve Gp-Control
1u4630 Valve Gp
3g2887 Valve Gp-Diverter
3G***87Valve Group-Diverter; -Towing, Parking Brake Release1
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9j0715 Valve Gp-Control-Lift
8j9469 Valve Gp-Relief
4t2591 Valve Gp-Pitch Relief
9j0723 Valve Gp-Relief
9j0710 Valve Gp-Relief
9j0798 Valve Gp-Relief
8j9475 Valve Gp-Relief
9j0797 Valve Gp-Relief
9J***97Valve Group-Relief; (Pilot Operated)1
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9t1076 Valve Gp-Servo
9j0719 Valve Gp-Control-Tilt
Implements
3y6885 Actuator Gp
3y6884 Actuator Gp-Rotary
4t0412 Actuator Gp-Rotary
5g2464 Actuator Gp-Swing
5G***64Actuator Group-Swing; Swing Actuator Group1
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5g3761 Actuator Gp-Swing
5G***61Actuator Group-Swing; Swing Actuator Group1
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5g2150 Backhoe Ar-Fixed Pivot
1U***55Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-R.H1
1U***56Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-L.H1
3G***67Cylinder Group-Backhoe Boom1
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8y1140 Backhoe Ar-Fixed Pivot
5G***50Backhoe Ar-Fixed Pivot1
5G***65Cooler Group-Hydraulic Oil1
5G***33Pump & Lines Group1
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8y1141 Backhoe Ar-Sideshift
5G***65Cooler Group-Hydraulic Oil1
5G***90Backhoe Ar-Sideshift1
5G***33Pump & Lines Group1
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5g3690 Backhoe Ar-Sideshift
3G***67Cylinder Group-Backhoe Boom1
3G***71Cylinder Group-Backhoe Stick1
3G***05Cylinder Group-Backhoe Bucket1
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4t0805 Cutting Edge & Bit Gp
5g2721 Boom Gp
5g1679 Bucket Ar-Multi-Purpose
3G***65Cylinder Group-Bucket; Cylinder Gp-Multi-Purpose Bucket2
5G***52Lines Group-Hydraulic; Hydraulic Lines Group1
5G***79Bucket Ar-Multipurpose1
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5g8461 Bucket As
5g0887 Bucket Gp-Hoe
5g0888 Bucket Gp-Hoe
5g0885 Bucket Gp-Hoe
5g0886 Bucket Gp-Hoe
5g4091 Bucket Gp-Multi-Purpose
5G***91Bucket Group-Multipurpose; Multi-Purpose Bucket Group1
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6y1467 Case & Covers Gp
6y1906 Gear & Clutch Gp-Part 2 Of 2
6y1906 Gear & Clutch Gp
5g2543 Console Gp
5G***43Console Group; Backhoe Console Group1
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5g3594 Console Gp-Backhoe
5G***94Console Group-Backhoe; Console Group-Backhoe1
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5g2586 Control & Mounting Gp
5G***86Control & Mounting Group; Backhoe Mounting & Control Group1
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5g3960 Control Gp-Bucket
6y2048 Control Gp-Winch
5g2636 Control Gp-Towing Winch
5G***36Control Group-Winch; Control Gp-Towing Winch1
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6y2216 Control Gp-Winch
5g4331 Control Gp-Towing Winch
5G***31Control Group-Winch; Control Gp-Towing Winch1
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5g3938 Control Gp-Towing Winch
5G***38Control Group-Winch; Control Gp-Towing Winch1
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6y2175 Conversion Ar-Winch
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***465
3T***80Cover As1
5G***38Control Group-Winch; Control Gp-Towing Winch1
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6y2176 Conversion Ar-Winch
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***465
1A***83Bolt (4.75" Long-Location "B")2
3T***80Cover As1
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6y1959 Conversion Gp-Winch
6y2217 Conversion Gp-Winch
7g9447 Covers Gp-Shipping
2M***80Seal--To Connector Pump Outlet1
3T***85Cover-Shipping; Shipping Cover1
7G***47Cover Group-Shipping; Shipping Cover Group1
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5g2752 Drive Ar-Winch
5G***18Drive Group-Power Take-Off; Power Take-Off Drive Group1
5G***52Drive Ar-Winch1
5G***65Pump & Lines Group; Pump And Lines Group1
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7g9470 Drive Gp-Winch
5g2235 Frame Gp-Backhoe
5G***35Frame Group; Backhoe Frame Group1
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5g3260 Frame Gp-Backhoe
5G***60Frame Group; Frame Group-Backhoe1
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5g3443 Frame Gp-Sliding
5G***43Frame Group-Sliding; Sliding Frame Group1
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5g2465 Frame Gp-Swing
5G***65Frame Group-Swing; Swing Frame Group1
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6y2111 Lines Gp-Winch
5g2695 Linkage Gp-Bucket
5G***95Linkage Group-Bucket; Bucket Linkage Group1
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7g6800 Manifold Gp
6t2288 Manifold Gp
5g2173 Mounting Ar-Backhoe
5G***73Mounting Ar-Backhoe1
5G***34Seat Group; Reversible Seat Group1
5G***41Gauge Group-Hydraulic Oil Temp; Hydraulic Oil Temperature Gauge Group1
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5g9409 Mounting Ar-Backhoe
5G***34Seat Group; Reversible Seat Group1
5G***41Gauge Group-Hydraulic Oil Temp; Hydraulic Oil Temperature Gauge Group1
5G***87Shield Group-Heat; Shield Group--Heat1
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8y1133 Mounting Ar-Backhoe
5G***73Mounting Ar-Backhoe1
5G***65Cooler Group-Hydraulic Oil1
5G***33Pump & Lines Group1
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6s6371 Mounting Gp-Backhoe
6S***71Mounting Group-Backhoe; Backhoe Mounting Group1
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6s5905 Mounting Gp-Cylinder
6S***05Mounting Group-Cylinder; Cylinder Mounting Group1
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8j3294 Mounting Gp-Ripper
8J***94Mounting Group-Ripper; Ripper Mounting Group1
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7g9423 Mounting Gp-Winch
6s7799 Pad Gp-Street
5g4320 Pad Gp-Street
6y0496 Ripper Ar
6S***59Lines Group-Ripper; Ripper Lines Group1
6Y***96Ripper Ar1
7B***28Drive Screws-2 Required For Installing2
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8j3334 Ripper Gp
3y6893 Shaft Gp
3g4047 Sidecutter Gp
5g2979 Stabilizer Gp
5G***79Stabilizer Group; Stabilizer Group1
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5g2963 Step Gp
5g2717 Stick Gp-Hoe
5G***17Stick Group-Hoe; Backhoe Stick Group1
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6y6223 Tip-Abrasion
6Y***61Tip - Abrasion1
6Y***62Tip - Abrasion1
6Y***23Tip-Abrasion1
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8e4222 Tip
8E***69Tip-Heavy Duty-Long (Cast)1
8E***70Tip-Heavy Duty-Long (Forged)1
8E***22Tip-Long1
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6y8229 Tip-Penetration
6Y***71Tip - Penetration1
6Y***72Tip - Penetration1
6Y***29Tip-Penetration1
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1u1530 Tooth Gp
1u1529 Tooth Gp
8j5313 Tooth Gp
1u2423 Uni-Tooth Gp
6t2289 Valve Gp
7g6861 Valve Gp
7g6799 Valve Gp-Selector & Pressure Control
7G***99Valve Group-Selector & Press Cont1
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6t2287 Valve Gp-Selector & Pressure Control
6T***87Valve Group-Selector & Press Cont1
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6y2228 Winch Ar
5G***74Pump & Lines Group1
5G***31Control Group-Winch; Control Gp-Towing Winch1
6Y***55Winch Ar-Towing1
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6y2227 Winch Ar
5G***36Control Group-Winch; Control Gp-Towing Winch1
5G***74Pump & Lines Group1
6Y***55Winch Ar-Towing1
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6y2055 Winch Ar-Towing
4B***58Screw (Identification Plate) Mounting2
6V***27Plate, Serial Number; On Left Hand Side Of Winch1
6Y***67Case & Covers Group-Winch1
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Lubrication System
6n3382 Breather Gp
1n3224 Filter Gp-Oil
1N***24Filter Group-Oil; Oil Filter Group1
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9y1898 Fumes Disposal Gp
9Y***98Fumes Disposal Group; Fumes Disposal Group1
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1w0367 Gauge Gp-Oil Level (Dipstick)
1W***67Gauge Group-Oil Level (Dipstick)1
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7w0332 Kit-Pcv Breather
2w6697 Pump Gp-Oil-Without Housing
Power Train-Power Transmission Unit
8y0234 Final Drive Gp
6y5504 Adapter Gp-Sprocket
9p6238 Case & Parts Gp-Part 1 Of 2
9p6238 Case & Parts Gp-Part 2 Of 2
5g9408 Control Gp-Transmission-Part 1 Of 3
5g9408 Control Gp-Transmission-Part 2 Of 3
5g9408 Control Gp-Transmission-Part 3 Of 3
9p5695 Control Gp-Transmission Hydraulic
9P***95Control Group-Transmission Hydraulic; Control Gp-Transmission Hydraulic1
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5g1818 Drive Gp-Power Take-Off
5G***18Drive Group-Power Take-Off; Power Take-Off Drive Group1
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9p4540 Drive Gp-Pump
5g1239 Filler Gp-Power Train Oil
9p6277 Filter Gp-Transmission
9P***77Filter Group-Transmission; -Transmission1
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9p7243 Transfer Case & Gear Gp
5g1224 Gear Gp-Bevel
5g0905 Lines Gp-Powertrain Oil
7g7601 Planetary Gp-Part 2 Of 2
7g7601 Planetary Gp-Part 1 Of 2
9p7240 Pump Gp-Gear
9p7239 Pump Gp-Gear
6y2047 Segment Gp-Sprocket-2 Required
1t1390 Torque Converter Gp
7g7600 Transmission Ar
1T***90Torque Converter Group1
7G***00Transmission Ar1
7G***01Planetary Group1
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5g1823 Universal Joint Gp
9p5694 Valve Gp-Selector & Pressure Control
9p5693 Valve Gp-Selector & Pressure Control
9P***93Valve Group-Selector & Press Cont1
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Service Equipment And Supplies
Gasket Kits
6V***18Planetary Transmission0
6V***19Kit-Gasket; (Transmission Filter)0
6V***21Kit-Gasket; (Transfer Gear)0
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Name Plates & Films-Part 1 Of 2
03***91Pop - Rivet (To Secure Safety Lable)4
3N***90Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine1
4B***58Screw (Identification Plate) Mounting2
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Name Plates & Films-Part 2 Of 2
1P***07Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation4
5P***15Film-Warning (Backhoe) On Lower R.H.Side1
5P***10Film-Caution; Below Heat Start Switch On Dash1
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Starting And Electrical System
6t7160 Lamp Gp
8y1144 Warning Gp-Backup
8n2268 Alternator Gp
8n2822 Alternator Gp-Charging
6V***78Nut; (10-32-Thd)2
8F***34Lockwasher; (External Teeth)2
8N***68Alternator Group-Charging1
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7n4784 Alternator Gp
1w4263 Alternator Gp
5g8734 Battery & Wiring Gp-Part 2 Of 2
5g8734 Battery & Wiring Gp-Part 1 Of 2
6s3548 Battery Gp
8y1223 Cover Gp-Rear
8m7892 Gauge As-Ammeter
8y1562 Horn Gp-Electric
8y1301 Lighting Gp
5g2541 Starting Aid Gp-Ether
9x0354 Starting Motor Gp-Electric
4n0190 Starting Motor Gp-Electric
4N***90Starting Motor Group-Electric; Electric Starting Motor Group1
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4n0241 Starting Motor Gp-Electric
3e1865 Starting Motor Gp-Electric
9g5517 Switch As-12 Volt
8n0410 Switch Gp
Steering Clutches And Brakes
8y1542 Control Gp-Steering Clutch-Part 1 Of 2
8y1542 Control Gp-Steering Clutch-Part 2 Of 2
8y1087 Brake Gp-Steering-Part 2 Of 3
8y1087 Brake Gp-Steering-Part 3 Of 3
8y1087 Brake Gp-Steering-Part 1 Of 3
5g6103 Case Gp-Steering Clutch
5g8725 Clutch Gp-Steering
5G***25Clutch Group-Steering; Clutch Gp-Steering Brake1
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5g8121 Valve Gp
5g8120 Valve Gp
8y4011 Valve Gp-Control

935C serial number reference

Locate the machine ID plate on the outer frame of the loader. The serial number prefix consists of the first three alphanumeric characters of the 8-character serial number or the first three characters of the 17-character Product Identification Number (PIN).

PrefixIdentifies
5DJ935C Series II

Frequently asked questions

What engine powers the Caterpillar 935C?

The machine is equipped with a Caterpillar 3204 direct injection engine, providing approximately 78 to 80 hp (58-60 kW) of net power.

What is the standard operating weight of this model?

The standard operating weight for a Caterpillar 935C Crawler Loader is approximately 14,920 kg (32,895 lb).

What machine replaced the 935C?

The Caterpillar 935C was followed by the 935C II series, which featured an updated operator station and enhanced breakout force.

What 935C owners discuss

What are the common engine power specifications for the Caterpillar 935C series?
The standard 935C utilizes a 3204 direct injection, four-cylinder engine producing 78 flywheel horsepower (FWHP). The 935C Series II configuration features an 80 hp net power rating.
What mechanical issues are frequently reported regarding the 935C drivetrain and steering?
Users have reported metallic clanging noises that may indicate a failing drive shaft. Steering issues can manifest as brake band wear, which may require adjustment or replacement of drums and bands. In some configurations, steering clutch problems involving flat spots on rollers can restrict full movement.
What are the recommended fluid types for maintaining Caterpillar 935C systems?
Standard fluids include Cat DEO (Diesel Engine Oil) or DEO-ULS for engine lubrication, TDTO (Transmission/Drive Train Oil) for transmission and drivetrain, and HYDO Advanced for hydraulic systems. Use of incorrect hydraulic oil can cause valve clogging and pump damage.
What undercarriage features are standard on the 935C?
The machine typically features a 142 cm (56-inch) track gauge and may be equipped with Sealed and Lubricated Tracks (SALT).
How should an operator interpret Caterpillar diagnostic codes on older 935C models?
Older machines utilize a system of Module Identifier (MID), Component Identifier (CID), and Failure Mode Identifier (FMI) to report faults. The MID identifies the reporting electronic control module, the CID specifies the problematic circuit or system, and the FMI describes the nature of the failure.
What is a critical inspection point when purchasing a used 935C?
Inspect all components thoroughly to ensure performance integrity. Specifically, check for hydraulic cylinder leaks and evaluate the condition of the undercarriage parts to avoid high repair costs.

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

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