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Caterpillar 931
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 931 is a track-type (crawler) loader built from 1973 to 1979, offered in a base configuration and a low-ground-pressure (LGP) version for soft or unstable footing. Power comes from Caterpillar's own 3204, a naturally aspirated, mechanically governed 4-cylinder diesel rated around 62 hp (46.2 kW) net, paired with a 3-speed forward powershift transmission with either one or three reverse speeds. Steering is handled by dry, mechanically actuated clutches and brakes rather than hydraulic or hydrostatic controls. Operating weight runs 6,900 to 7,775 kg (about 15,200 to 17,140 lb) depending on configuration. The 931 carries a loader bucket only; no dozer blade option was offered, though a backhoe attachment was available factory-fitted. It opened Caterpillar's numbered 931 line within the Traxcavator crawler-loader family and was succeeded in 1979 by the 931B, followed later by the 931C and 931C Series II.
Within its own production run the main variable was chassis width and shoe selection between the standard machine and the LGP version; the powertrain and controls stayed mechanical and analog throughout, with no electronic engine management, no fault codes, and no digital monitoring beyond gauges and warning lamps. The step to the 931B brought increased breakout force and revised brake hardware, and later C-series machines moved the line further from the 931's mechanical roots. In today's used and parts market, the base 931 sits at the entry point of a well-known crawler-loader family: its 3204 engine shares parts lineage with countless other Cat mechanical machines of the era, keeping engine parts comparatively easy to source, while undercarriage and steering-clutch components are the pieces most often searched for and hardest to find in good condition. Its bucket-only, no-blade layout and compact footprint keep it in demand for utility, landscape, and light forestry work where a simple, rebuildable machine is valued over a computer-controlled one.
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 931 specifications
Identity / Production
| Machine type | Track-type (crawler) loader, torque-converter powershift, wheel-loader-style bucket on a dozer undercarriage |
| Production span | 1974-1986 (base 931 / 931 LGP); succeeded by 931B from 1986 |
| Configurations offered | Standard (Std) gauge and LGP (low ground pressure, wide-track) undercarriage |
| Contamination guard | All figures below are for the base 931 / 931 LGP only. 931B and 931C Series II use the same 3204 engine family but at higher net power and different weights/breakout figures - not blended in here |
Engine
| Engine model | Cat 3204, inline-4, 4-stroke diesel, naturally aspirated (no factory turbo on this generation) |
| Net power | 62 hp (46.2 kW) at 2,400 rpm, both Std and LGP |
| Displacement | 5.2 L (317.4 cu in) |
| Emissions certification | None - pre-emissions-regulation mechanical diesel, built before Tier/Stage standards applied |
| Electrical system | 12V, alternator rated about 40 amp |
Weights
| Operating weight - Standard | 6,900 kg (15,212 lb) |
| Operating weight - LGP | 7,775 kg (17,141 lb) |
| Static tipping load - Standard | 4,035 kg (8,896 lb) |
| Static tipping load - LGP | 4,607 kg (10,157 lb) |
Dimensions
| Width over tracks - Standard | 1.78-1.80 m (5.84-5.90 ft) |
| Width over tracks - LGP | 2.32 m (7.60 ft) |
| Height to top of cab - Standard | 2.72-2.74 m (8.92-9.00 ft) |
| Height to top of cab - LGP | 2.71 m (8.90 ft) |
| Clearance at full height and dump - Standard | 2.47-2.47 m (8.09-8.10 ft) |
| Clearance at full height and dump - LGP | 2.59 m (8.50 ft) |
| Reach at dump height - Standard | 0.79 m (2.58-2.60 ft) |
| Reach at dump height - LGP | 0.73 m (2.40 ft) |
| Ground clearance - Standard | 0.32-0.34 m (1.04-1.10 ft) |
| Ground clearance - LGP | 0.37 m (1.15-1.20 ft) |
| Length of track on ground - Standard | 1.82-1.83 m (5.99-6.00 ft) |
| Length of track on ground - LGP | 1.86 m (6.10 ft) |
| Track gauge - Standard | 1,420-1,422 mm (55.91-56.0 in) |
| Track gauge - LGP | 1,651-1,655 mm (64.97-65.0 in) |
| Track shoe width - Standard | 305-307 mm (12.0-12.1 in) |
| Track shoe width - LGP | 635 mm (25.0 in) |
| Track rollers per side | 5, same for both configurations |
| Ground contact area - Standard | 1.13 sq m (1,736 sq in) |
| Ground contact area - LGP | 3.77 sq m (3,565 sq in) |
| Length with bucket on ground - LGP | 3.81 m (12.41-12.50 ft) - figure not separately published for Standard config |
Performance
| Maximum travel speed - Standard | 11.1 km/h (6.9 mph) |
| Maximum travel speed - LGP | 11.1 km/h (6.9 mph) |
| Travel speed by gear (F/R) | Not published in available spec sheets for the base 931/931 LGP. Machine runs a torque-converter powershift transmission (documented as 3-forward configurations on later 931-family loaders); only a single top travel speed figure is published for this generation - verify per-gear speeds against the operator/service manual |
| Drawbar pull | Not published for this model in available OEM-style spec sheets. Cat did not carry a drawbar-pull rating in its 931/931 LGP loader specalog data the way it does for dozer models |
| Gradeability | Not documented in available spec sheets for this model |
| Ground pressure - Standard | About 0.60 kg/sq cm (8.6-8.8 psi), derived from published operating weight and ground contact area - not printed as a standalone figure on all sheets |
| Ground pressure - LGP | 0.29 kg/sq cm (4.2 psi) |
| Breakout force, standard bucket - Standard config | 47.6 kN (10,700 lb / 4,853 kg) |
| Breakout force, standard bucket - LGP config | 57.1 kN (12,850 lb / 5,829 kg) |
| Hydraulic cycle times - raise | 6.1-6.2 sec, both configs |
| Hydraulic cycle times - dump | 1.3 sec, both configs |
| Hydraulic cycle times - lower | 3.5 sec, both configs |
Bucket / Blade
| Attachment type | Loader bucket only in published spec data - no dozer-blade (S/SU/A/VPAT) variant documented for the base 931/931 LGP; this is a track-type loader, not a bulldozer |
| Bucket capacity, struck - both configs | 0.69 cu m (0.9 cu yd) |
| Bucket capacity, heaped - both configs | 0.84 cu m (1.1 cu yd) |
| Bucket width | Around 1.89 m per general references, not consistently confirmed across primary spec sheets - verify against the parts/operation manual for the specific serial range |
Service capacities
| Fuel tank | 114.3-114.7 L (30.2-30.3 gal), both configs |
| Hydraulic system | 49.2 L (13.0 gal), both configs |
| Engine oil (with filter) | 11.7 L (3.1 gal) |
| Cooling system | 24.6 L (6.5 gal) |
| Final drive, each side | 11.7 L (3.1 gal) |
| Hydraulic pump flow | 84.0 L/min (22.2 gpm) |
| Hydraulic relief valve setting | 17.2 MPa (2,500 psi) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
931 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) - Cat 3204 4-cylinder diesel | approx. 11.7-12.1 L (3.1-3.2 US gal), varies slightly by configuration | Cat diesel engine oil (DEO); SAE 10W below 0degC (32degF), SAE 30 in temperate range, SAE 40 in sustained hot climates - select grade by ambient temperature at start-up per the viscosity chart |
| Cooling system | approx. 20-24.6 L (5.3-6.5 US gal), varies by configuration (standard vs LGP) and series (931 vs 931B) | Permanent-type (glycol-base) antifreeze/coolant mixed with clean water; corrosion inhibitor maintained per coolant test |
| Fuel tank | approx. 114-116 L (30.2-30.7 US gal) | No. 2-D diesel fuel; switch to No. 1-D in cold-climate/winter operation for better cold-flow |
| Powershift transmission | approx. 26.5 L (7 US gal) | Cat Transmission and Drive Train Oil (TDTO), SAE 30 grade in normal climates, lighter SAE 10W TDTO in cold climates |
| Bevel gear / steering clutch compartment | approx. 15.1 L (4 US gal) | Cat TDTO, same grade as transmission (SAE 30 standard, SAE 10W in cold climates) - shares fill/dipstick arrangement with transmission but is a separate compartment |
| Final drive (each side) | approx. 8-11.7 L (2.2-3.1 US gal), varies by configuration/series (LGP vs standard, 931 vs 931B) | Cat TDTO or extreme-pressure gear oil equivalent to 85W-140 GL-5; heavier-viscosity TDTO grade favored for high ambient temperatures |
| Hydraulic system / tank | approx. 49.2 L (13 US gal) on base 931 (standard and LGP); later 931B specified approx. 76 L (20.1 US gal) - notable difference between generations, verify by serial prefix | Cat TDTO or Cat hydraulic oil (HYDO) of equivalent viscosity to the power train oil used on this era of machine |
| Pivot shaft | not separately documented for this track-type loader - loader-arm and linkage pivot pins are serviced as grease points, not a filled compartment | n/a - see grease specification |
| Grease points (bucket linkage, tilt/lift cylinder pins, steering clutch linkage, track idler and roller fittings) | per fitting, apply until purge visible at seal - no reservoir capacity | Cat Multipurpose Grease, NLGI Grade 2, EP lithium-base grease |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 931 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the 931 beyond the schedule
Predictive Maintenance & Fluid Analysis
The 931 has no ECM and no fault codes, so predictive work depends on gauges, warning lamps, and scheduled sampling. Pull engine oil and transmission oil samples at each scheduled change to track wear metals from the 3204 and the powershift clutches before they show up as symptoms. Watch coolant and oil pressure gauges through every warm-up, and listen for delayed or harsh steering clutch engagement, an early sign of linkage wear or disc glazing rather than a sudden failure.
Corrective & Common Repairs
The most frequent corrective jobs on a 931 center on the dry steering clutch and brake system: the small linkage rollers are known to seize and develop flat spots, causing incomplete clutch release or drag on one side. Brake adjustment is the main routine correction and should be checked whenever steering feels uneven. On the 3204, hard starting or excess smoke usually traces back to worn injectors or a slipping injection pump rather than the block itself.
Overhaul & Rebuild Points
Expect the steering clutch and brake packs to need a full rebuild well before the engine does; discs, springs, and linkage wear as a set and are best replaced together rather than piecemeal. Final drives should be opened for bearing and seal inspection at the same horizon. Because the 931 has no blade and does all its digging through the bucket, undercarriage components (track chain, rollers, idlers, sprockets) wear faster than on a dozer of similar size and are the largest rebuild-cost driver.
Seasonal & Environment Servicing
Dry-clutch steering is vulnerable to mud, standing water, and fine grit working past the linkage seals in wet-season or quarry duty; keep the linkage covers and boots intact and clean them out rather than just greasing over contamination. Cold starts on the naturally aspirated 3204 take longer without electronic assist, so battery condition and starting aid checks matter more heading into winter. Dusty or forestry environments call for shorter air cleaner service intervals than the standard schedule assumes.
931 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 8T-2475 | Transmission Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
931 attachments & work tools
Blades
The 931 is a track-type loader chassis (bucket/backhoe/fork work tools), not a track-type tractor, and no factory S/SU/A or VPAT dozer-blade option is documented for it across the 931/931B/931C/931C Series II line. Dozing is normally done with the standard loader bucket lowered flat or a backfill blade fitted in place of the bucket; if a true angle/VPAT blade is seen mounted on a 931 it is most likely a non-factory field conversion. Verify any blade-equipped unit against its data plate before quoting factory specs.
Rippers
Documented ripper fitment for this class is a single straight ripper shank assembly, with shank parts cross-listed across 931, 931B and 931C plus the related 933C/935/935C/939/939C loaders and period 12/14-series graders. No multi-shank parallelogram ripper is documented for the 931 chassis (multi-shank rigs are a larger track-type-tractor option, not this loader class); shank/tip weights are not published and should be checked against the parts book for the specific unit.
Winches
No factory-cataloged towing/logging winch is documented for the 931 line. Occasional used-equipment listings show units fitted with a hydraulic winch, described in the trade as uncommon for this model, which points to field or aftermarket installation rather than a standard Cat work-tool offering for this loader class.
Drawbars/counterweights
No factory drawbar or counterweight kit is documented specifically for the 931. Rear ballast on this class more commonly took the form of a rear-mounted backhoe or fork attachment providing counterbalance during front-end loader work rather than a discrete counterweight block; confirm any drawbar found on a unit against its parts book, as it is not confirmed factory content.
Cab/ROPS guarding
Base machines shipped with an open ROPS canopy or an enclosed ROPS cab as the standard operator protection; no dedicated forestry or waste-handling guarding package (screens, top guards, belly pans) is documented for the vintage 931/931B/931C series. Cat's factory forestry cab-guard packages found in current documentation apply to later track-loader and skid-steer models, not this line, so forestry guarding on a 931 should be treated as aftermarket unless proven otherwise.
Hydraulic arrangement
Front loader linkage on the 931 (from the 1977 production update) is sealed and lubricated, running off the machine's main implement pump. A rear backhoe could be factory-fitted (87U/88U configurations, offered with fixed-pivot or side-shift mounting) and some units carried an optional higher-flow piston pump to support it; backhoe supply/return hoses use pioneer-style quick couplers and must be connected together whenever the engine runs, otherwise the pump deadheads. Quick-coupler circuits at the front let the operator swap bucket/fork/backhoe tools without leaving the cab.
All 931 assemblies by section
Every catalogued assembly group for the Caterpillar 931. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
4n7914 Air Cleaner Group
| 4N***14 | Air Cleaner Group | 1 |
4n0307 Air Cleaner Group
| 4N***07 | Air Cleaner Group | 1 |
4n0312 Exhaust Extension Group
| 4N***12 | Extension Group-Exhaust | 1 |
1w5054 Air Lines Group
| 1W***54 | Lines Group-Air; Air Lines Group | 1 |
7n4971 Exhaust Manifold Group
| 7N***71 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
7n4970 Muffler Group
| 7N***70 | Muffler Group | 1 |
5m2735 Prescreener Group
| 5M***35 | Prescreener Group; Prescreener Group----------------------. | 1 |
Basic Engine
6n2393 Camshaft Group
| 6N***93 | Camshaft Group-Single; Camshaft Group-Single | 1 |
2w7486 Valve Mechanism Cover Group
| 2W***86 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
Crankshaft Bearing Replacements
| 1W***55 | Bearing (0.25mm Undersize) | 1 |
| 1W***56 | Bearing (0.51mm Undersize) | 1 |
| 1W***57 | Bearing (1.27mm Undersize) | 1 |
7w3926 Crankshaft Group
| 7W***26 | Crankshaft Group; Crankshaft Group | 1 |
2w7902 Cylinder Block Assembly
| 2W***02 | Cylinder Block As | 1 |
1w4327 Cylinder Block Assembly
| 1W***27 | Cylinder Block As | 1 |
1w4326 Cylinder Block Group
| 1W***26 | Cylinder Block Group; Cylinder Block Group | 1 |
7w9390 Cylinder Head As
| 7W***90 | Cylinder Head As | 1 |
7c2320 Head As-Cylinder Service*R
| 7C***20 | Cylinder Head As | 1 |
7w9392 Cylinder Head Gp*R
| 7W***92 | Cylinder Head Group | 1 |
1w2280 Cylinder Head Group
| 1W***80 | Cylinder Head Group | 1 |
6n2467 Cylinder Head Gp*R
| 6N***67 | Cylinder Head Group; Cylinder Head Group | 1 |
6n2467 Cylinder Head Group*R
| 6N***67 | Cylinder Head Group; Cylinder Head Group | 1 |
7n5141 Fan Drive Group
| 7N***41 | Drive Group-Fan; Water Pump Drive Group | 1 |
7n6937 Flywheel Group
| 7N***37 | Flywheel Group; Flywheel Group | 1 |
1w1355 Front Gear Group
| 1W***55 | Gear Group-Front; Front Gear Group | 1 |
7n6344 Flywheel Housing Group
| 7N***44 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
2w4384 Front Housing Group
| 2W***84 | Housing Group-Front; Front Housing Group | 1 |
1w5554 Engine Lifting Group
| 1W***54 | Lifting Group | 1 |
6n8370 Oil Pan Group
| 6N***70 | Pan Group-Oil; Oil Pan Group | 1 |
8n4079 Connecting Rod And Piston Group-4 Required
| 8N***79 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
2w8419 Piston Group
| 2W***19 | Piston Group | 1 |
7n5138 Crankshaft Pulley Group
| 7N***38 | Pulley Group-Crankshaft; Auxiliary Drive Pulley Group | 1 |
4n0300 Engine And Transmission Support Group
| 4N***00 | Support Group-Engine & Tmsn | 1 |
1w5720 Valve Mechanism Group
| 1W***20 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Cab, Gauges And Accessories
8y4037 Seat Belt Gp
| 8Y***37 | Seat Belt Group | 1 |
7v9506 Seat Belt Group
| 7V***06 | Seat Belt Group | 1 |
7v9507 Seat Belt Group
| 7V***07 | Seat Belt Group | 1 |
5g1020 Dash Group
| 5G***20 | Dash Group | 1 |
5g5888 Gauge Group
5g2341 Hydraulic Oil Temperature Gauge Group
| 5G***41 | Gauge Group-Hydraulic Oil Temp; Hydraulic Oil Temperature Gauge Group | 1 |
5g0949 Vandalism Guard Group
| 5G***49 | Guard Group-Vandalism | 1 |
5g2988 Assist Handle Group
| 5G***88 | Handhold Group; Handle Group--Assist | 1 |
4n0481 Electric Hour Meter Group
| 4N***81 | Meter Group-Hour | 1 |
5g0673 Roll Over Protective Group
| 5G***73 | Rops Group | 1 |
5g5889 Seat & Support Gp-Part 1 Of 2
| 5G***89 | Seat & Support Group | 1 |
5g5889 Seat & Support Gp-Part 2 Of 2
| 5G***89 | Seat & Support Group | 1 |
6s7596 Seat Gp-Part 1 Of 2
| 6S***96 | Seat Group | 1 |
5g2334 Seat Gp-Reversible
| 5G***34 | Seat Group; Reversible Seat Group | 1 |
6s7596 Seat Gp-Part 2 Of 2
| 6S***96 | Seat Group | 1 |
6s3626 Suspension Seat Group
| 6S***26 | Seat Group-Suspension; Suspension Seat Group------------------- | 1 |
2v7961 Suspension As-Seat
| 2V***61 | Suspension As-Seat | 1 |
Chassis And Undercarriage
5g1136 Lift Cylinder Brace Group
| 5G***36 | Brace Group-Lift Cylinder; Lift Cylinder Brace Group | 1 |
6s9359 Track Cleaner Bar Group
| 6S***59 | Cleaner Bar Group | 1 |
5g0796 Counterweight Group-204 Kg (450 Lbs.)
| 5G***96 | Counterweight Group | 1 |
5g0797 Counterweight Group-340 Kg (750 Lbs.)
| 5G***97 | Counterweight Group | 1 |
5g0441 Front Counterweight Group-386 Kg (850 Lbs.)
| 5G***41 | Counterweight Group-Front | 1 |
5g2628 Sprocket Counterweight Group
| 5G***28 | Counterweight Group-Sprocket | 1 |
5g0779 Drawbar Group
| 5G***79 | Drawbar Group; (Fixed) | 1 |
5g4019 Engine Enclosure Group
| 5G***19 | Enclosure Group-Engine | 1 |
5g4328 Engine Enclosure Group
| 5G***28 | Enclosure Group-Engine | 1 |
5g0060 Loader Frame Group
| 5G***60 | Frame Group-Loader | 1 |
5g4383 Track Roller Frame Group
| 5G***83 | Frame Group-Track Roller | 1 |
5g4397 Frame Gp-Track Roller
| 5G***97 | Frame Group-Track Roller | 1 |
5g1185 Bottom Guard Group
| 5G***85 | Guard Group-Bottom | 1 |
5g2327 Brush Guard Group-Rear
| 5G***27 | Guard Group-Brush | 1 |
5g2342 Brush Guard Group-Side
| 5G***42 | Guard Group-Brush | 1 |
5g0465 Radiator Guard Group
| 5G***65 | Guard Group-Radiator | 1 |
6s8323 Radiator Guard Group-Hinged-Heavy Duty
| 6S***23 | Guard Group-Radiator Hinged | 1 |
6s6166 Hinged Radiator Guard Group
| 6S***66 | Guard Group-Radiator Hinged; Radiator Hinger Guard Group | 1 |
5g4371 Guard Gp-Recoil
| 5G***71 | Guard Group-Recoil Mechanism | 1 |
5g4374 Guard Gp-Track Roller
| 5G***74 | Guard Group-Track Roller | 1 |
5g4308 Hood And Guard Group
| 5G***08 | Hood & Guard Group | 1 |
6s3864 Front Pull Hook Group
| 6S***64 | Hook Group-Front Pull | 1 |
5g4380 Idler Gp-Front-Part 1 Of 2
| 5G***80 | Idler Group-Front | 1 |
5g4380 Idler Gp-Front-Part 2 Of 2
| 5G***80 | Idler Group-Front | 1 |
6t2133 Link Assembly
| 6T***33 | Link As-Track | 1 |
3t6705 Link As-Track
| 3T***05 | Link As-Track; Track Link Assembly | 1 |
6y1513 Link As-Track
| 6Y***13 | Link As-Track | 1 |
6y1511 Link As-Track
| 6Y***11 | Link As-Track | 1 |
5g0460 Roll-Over Protective Structure Mounting Group
| 5G***60 | Mounting Group-Rops | 1 |
3t4352 Roller Gp-Single Flange-6 Required
| 3T***52 | Roller Group-Track; Single Flange Track Roller Group | 1 |
3t4353 Roller Gp-Double Flange-4 Required
| 3T***53 | Roller Group-Track; Double Flange Track Roller Group | 1 |
6s3609 Roller Gp-Track Carrier
| 6S***09 | Roller Group-Track Carrier; Track Carrier Roller Group | 1 |
5g2987 Heat Shield Group
| 5G***87 | Shield Group-Heat; Shield Group--Heat | 1 |
5g0377 Undercarriage Support Group
| 5G***77 | Support Group-Undercarriage | 1 |
5g0379 Support Gp-Undercarriage
| 5G***79 | Support Group-Undercarriage | 1 |
5g2236 Sweep Group
| 5G***36 | Sweep Group | 1 |
6y1672 Track Gp-2 Required
| 4K***38 | Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In) | 144 |
| 6Y***11 | Link As-Track | 1 |
| 6Y***94 | Shoe-Track | 36 |
6y1678 Track Gp
| 4K***38 | Bolt-Track (9/16-18 X 1.625 In); Bolt-Track-(9/16 X 18 X 1.6 In) | 72 |
| 5A***87 | Bolt-Track-( 9/16 X 18 X 3.0 In) | 72 |
| 6S***02 | Shoe-Master Lgp Track | 1 |
Track Group-2 Required-Sealed & Lubricated
| 3T***04 | Track Group | 2 |
| 3T***05 | Link As-Track; Track Link Assembly | 1 |
| 6T***33 | Track Group | 2 |
Cooling System
1n4903 Engine Oil Cooler Group
| 1N***03 | Cooler Group-Engine Oil; Engine Oil Cooler Group | 1 |
5g2765 Hydraulic Cooler Group
| 5G***65 | Cooler Group-Hydraulic Oil | 1 |
7n9989 Blower Fan Group
| 7N***89 | Fan Group-Blower | 1 |
4n2220 Suction Fan Group
| 4N***20 | Fan Group-Suction; Suction Fan Group | 1 |
6n9739 Heater Gp-Jacket Water (750 Watt, 120 Volt)
| 6N***39 | Heater Group-Jacket Water; Jacket Water Heater Group | 1 |
6n9125 Heater Gp-Jacket Water (750 Watt, 120 Volt)
| 6N***25 | Heater Group-Jacket Water | 1 |
4n0188 Water Lines Group
| 4N***88 | Lines Group-Water; Water Lines Group | 1 |
4n0660 Pump Gp-Water
| 4N***60 | Pump Group-Water; Water Pump Group | 1 |
8n5864 Radiator Group
| 8N***64 | Radiator Group | 1 |
8n3082 Radiator Group
| 8N***82 | Radiator Group | 1 |
8n4077 Radiator Group
| 8N***77 | Radiator Group; Radiator Group | 1 |
Engine Arrangement
4w8350 Engine Arrangement-Part 1 Of 2
| 1N***24 | Filter Group-Oil; Oil Filter Group | 1 |
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
| 1W***55 | Gear Group-Front; Front Gear Group | 1 |
4w8350 Engine Arrangement-Part 2 Of 2
| 1N***03 | Cooler Group-Engine Oil; Engine Oil Cooler Group | 1 |
| 1W***05 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
| 1W***63 | Alternator Group-Charging | 1 |
Fuel System And Governor
2w0262 Camshaft Assembly-21 Degrees
| 2W***62 | Camshaft As | 1 |
6s8967 Governor Control Group
| 6S***67 | Control Group-Governor | 1 |
1w6680 Fuel Filter Group
| 1W***80 | Filter Group-Fuel; Fuel Filter Group | 1 |
1w8730 Governor Group-Part 3 Of 3
| 1W***30 | Governor Group | 1 |
1w8730 Governor Group-Part 2 Of 3
| 1W***30 | Governor Group | 1 |
1w8730 Governor Group-Part 1 Of 3
| 1W***30 | Governor Group | 1 |
5g4583 Fuel Lines Group
| 5G***83 | Lines Group-Fuel | 1 |
1w4105 Fuel Injection Lines Group
| 1W***05 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
7n0042 Fuel Injection Lines Group
| 7N***42 | Lines Group-Fuel Injection | 1 |
6s9980 Vandalism Protection Group-Fuel Tank
| 6S***80 | Protection Group-Vandalism | 1 |
1w6539 Fuel Injection Pump Group
| 1W***39 | Pump Group-Fuel Injection | 1 |
2w0263 Fuel Injection Pump Group
| 2W***63 | Pump Group-Fuel Injection | 1 |
4n4314 Pump Gp-Fuel Priming
| 4N***14 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
2w4403 Fuel Transfer Pump Group
| 2W***03 | Pump Group-Fuel Transfer; Fuel Transfer Pump Group | 1 |
1w0568 Fuel Transfer Pump Group
| 1W***68 | Pump Group-Fuel Transfer | 1 |
7w0189 Governor And Fuel Injection Pump Group
| 7W***89 | Pump Group-Gov & Fuel Inj; Governor & Fuel Injection Pump Group | 1 |
5g5909 Fuel Tank Gp
| 5G***09 | Tank Group-Fuel | 1 |
4w5063 Torque Control Gp
| 4W***63 | Torque Control Group | 1 |
Hydraulic System
9g9288 Protection Cover Group-Hydraulic Tank Cap
| 9G***88 | Protection Cover Group; -Hydraulic Tank-Steering Tank Fill Cap-Hydraulic Tank Fill Cap | 1 |
3y6885 Actuator Group
| 3Y***85 | Actuator Group | 1 |
4t0412 Rotary Actuator Group
| 4T***12 | Actuator Group-Rotary | 1 |
3y6884 Rotary Actuator Group
| 3Y***84 | Actuator Group-Rotary | 1 |
5g3761 Swing Actuator Group
| 5G***61 | Actuator Group-Swing; Swing Actuator Group | 1 |
5g2464 Swing Actuator Group
| 5G***64 | Actuator Group-Swing; Swing Actuator Group | 1 |
5g0332 Hydraulic Hand Control Group-Front
| 5G***32 | Control Group-Hydraulic Hand | 1 |
5g0331 Hydraulic Hand Control Group
| 5G***31 | Control Group-Hydraulic Hand | 1 |
5g0585 Hydraulic Hand Control Group
| 5G***32 | Control Group-Hydraulic Hand | 1 |
| 5G***33 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper | 1 |
| 5G***85 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Attachment | 1 |
5g0333 Hydraulic Hand Control Group-Ripper
| 5G***33 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper | 1 |
5g0583 Hydraulic Hand Control Group
| 5G***32 | Control Group-Hydraulic Hand | 1 |
| 5G***83 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Attachment | 1 |
| 6S***81 | Film-Instruction; (Instruction) | 1 |
7g6798 Winch Control Group
| 7G***98 | Control Group-Winch; Winch Hydraulic Control Group | 1 |
6y2048 Control Gp-Winch
| 6Y***48 | Control Group-Winch | 1 |
5g3446 Cylinder Group-Slider Lock
| 5G***46 | Cylinder Group; Slider Lock Cylinder Group | 1 |
3g5767 Boom Cylinder Group
| 3G***67 | Cylinder Group-Backhoe Boom | 1 |
3g5905 Bucket Cylinder Group
| 3G***05 | Cylinder Group-Backhoe Bucket | 1 |
1u2656 Stabilizer Cylinder Group-L.H.
| 1U***56 | Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-L.H | 1 |
1u2655 Stabilizer Cylinder Group-R.H.
| 1U***55 | Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-R.H | 1 |
3g5771 Stick Cylinder Group
| 3G***71 | Cylinder Group-Backhoe Stick | 1 |
3g7365 Bucket Cylinder Group-2 Required
| 3G***65 | Cylinder Group-Bucket; Cylinder Gp-Multi-Purpose Bucket | 1 |
7j5893 Cylinder Gp-Lift-R.H.
| 7J***93 | Cylinder Group-Lift | 1 |
7j5894 Cylinder Gp-Lift-L.H.
| 7J***94 | Cylinder Group-Lift | 1 |
9t6705 Cylinder Gp-L.H. Lift
| 9T***05 | Cylinder Group-Lift-Lh; Cylinder Gp-L.H. Lift | 1 |
9t6704 Cylinder Gp-R.H. Lift
| 9T***04 | Cylinder Group-Lift-Rh; Cylinder Gp-R.H. Lift | 1 |
7j9920 Ripper Cylinder Gp
| 7J***20 | Cylinder Group-Ripper | 1 |
3g6792 Stabilizer Cylinder Group
| 3G***92 | Cylinder Group-Stabilizer; Stabilizer Cylinder Group | 1 |
4t0963 Tilt Cylinder Group-2 Required
| 4T***63 | Cylinder Group-Tilt | 1 |
5g4627 Hydraulic Arrangement-4 Valve
| 1U***26 | Valve Group-Bank 4; Valve Gp-Bank-4 Valve | 1 |
| 5G***43 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper | 1 |
| 5G***85 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Attachment | 1 |
5g0548 Hydraulic Arrangement-3 Valve Rear Attachment
| 1U***25 | Valve Group-Bank 3; Valve Gp-Bank-3 Valve | 1 |
| 5G***33 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group-Ripper | 1 |
| 5G***43 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper | 1 |
5g4626 Hydraulic Ar-3 Valve-Replaced By 5g9405-Page 127.01
| 1U***24 | Valve Group-Bank 3; Valve Gp-Bank-3 Valve | 1 |
| 5G***83 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Attachment | 1 |
| 5G***15 | Lines Group-Front; Front Lines Group | 1 |
5g9405 Hydraulic Ar-3 Valve
| 1U***24 | Valve Group-Bank 3; Valve Gp-Bank-3 Valve | 1 |
| 5G***83 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Attachment | 1 |
| 5G***50 | Mounting Group-Attachment; Mounting Gp-Attachment Lines | 1 |
5g9406 Hydraulic Ar-4 Valve
| 1U***26 | Valve Group-Bank 4; Valve Gp-Bank-4 Valve | 1 |
| 5G***43 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper | 1 |
| 5G***85 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Attachment | 1 |
5g3529 Bucket Positioner & Kickout Gp-Part 1 Of 2
| 5G***29 | Kickout & Positioner Group | 1 |
5g3529 Bucket Positioner & Kickout Gp-Part 2 Of 2
| 5G***29 | Kickout & Positioner Group | 1 |
5g3529 Kickout & Positioner Gp-Bucket-Part 2 Of 2
| 5G***29 | Kickout & Positioner Group | 1 |
5g3529 Kickout & Positioner Gp-Bucket-Part 1 Of 2
| 5G***29 | Kickout & Positioner Group | 1 |
5g2612 Boom Cylinder Lines Group
| 5G***12 | Lines Group-Boom Cylinder; Boom Cylinder Lines Group | 1 |
5g3669 Boom Cylinder Lines Group
| 5G***69 | Lines Group-Boom Cylinder; Room Cylinder Lines Group | 1 |
5g3672 Bucket Cylinder Lines Group
| 5G***72 | Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group | 1 |
5g2619 Bucket Cylinder Lines Group
| 5G***19 | Lines Group-Bucket Cylinder; Bucket Cylinder Lines Group | 1 |
5g9399 Lines Gp-Front Hydraulic
| 5G***99 | Lines Group-Front; Lines Gp-Front-Mp Bucket | 1 |
5g4615 Front Hydraulic Lines Group-Lift Cylinder
| 5G***15 | Lines Group-Front; Front Lines Group | 1 |
5g1652 Lines Gp-Hydraulic-Multi-Purpose Bucket
| 5G***52 | Lines Group-Hydraulic; Hydraulic Lines Group | 1 |
5g1652 Lines Gp-Hydraulic-Multi-Purpose Bucket-Part 1 Of 2
| 5G***52 | Lines Group-Hydraulic; Hydraulic Lines Group | 1 |
5g5925 Hydraulic Lines Group-1 Circuit
| 5G***25 | Lines Group-Hydraulic; Lines Gp-Hydraulic-1 Circuit | 1 |
5g1652 Lines Gp-Hydraulic-Multi-Purpose Bucket-Part 2 Of 2
| 5G***52 | Lines Group-Hydraulic; Hydraulic Lines Group | 1 |
5g0408 Lift Cylinder Lines Group
| 5G***08 | Lines Group-Lift Cylinder | 1 |
5g0443 Pump Lines Group
| 5G***43 | Lines Group-Pump | 1 |
5g0543 Rear Attachment Lines Group
| 5G***43 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment-Ripper | 1 |
6s3559 Ripper Lines Group
| 6S***59 | Lines Group-Ripper; Ripper Lines Group | 1 |
5g2216 Stablizer Lines Group
| 5G***16 | Lines Group-Stabilizer; Stabilizer Lines Group | 1 |
5g3682 Stabilizer Lines Group
| 5G***82 | Lines Group-Stabilizer; Lines Group-Stabilizer Cylinder | 1 |
5g3675 Stick Cylinder Lines Group
| 5G***75 | Lines Group-Stick; Stick Cylinder Lines Group | 1 |
5g2618 Stick Cylinder Lines Group
| 5G***18 | Lines Group-Stick; Stick Cylinder Lines Group | 1 |
5g2606 Swing Actuator Lines Group
| 5G***06 | Lines Group-Swing Actuator; Swing Actuator Lines Group | 1 |
5g3679 Swing Actuator Lines Group
| 5G***79 | Lines Group-Swing Actuator; Swing Actuator Lines Group | 1 |
5g0407 Tilt Cylinder Lines Group
| 5G***07 | Lines Group-Tilt Cylinder | 1 |
7g9425 Winch Lines Group
| 7G***25 | Lines Group-Winch; Winch Lines Group | 1 |
6y2111 Lines Gp-Winch
| 6Y***11 | Lines Group-Winch | 1 |
5g2491 Hydraulic Control Lock Gp
| 5G***91 | Lock Group-Hydraulic Hand Control | 1 |
7g6800 Manifold Group-Filter Base & Pressure Control
| 7G***00 | Manifold Group | 1 |
5g8750 Mounting Gp-Attachment-Front Lines
| 5G***50 | Mounting Group-Attachment; Mounting Gp-Attachment Lines | 1 |
8y1299 Pump & Lines Gp
| 5G***80 | Pump & Lines Group; Pump & Lines Gp-Backhoe | 1 |
| 8Y***34 | Tube As | 2 |
| 8Y***99 | Pump & Lines Group | 1 |
5g4580 Pump And Lines Group-Backhoe
| 5G***80 | Pump & Lines Group; Pump & Lines Gp-Backhoe | 1 |
5g3774 Pump & Lines Gp
| 5G***74 | Pump & Lines Group | 1 |
3g5386 Gear Pump Group-Shimadzu Seisakusko
| 3G***86 | Pump Group-Gear; Gear Pump Group-Shimadzu Seisakusho | 1 |
8j4514 Hydraulic Gear Pump Group
| 8J***14 | Pump Group-Gear | 1 |
8j4515 Gear Pump Group-Tyrone
| 8J***15 | Pump Group-Gear; Gear Pump Group-Tyrone | 1 |
1u0414 Gear Pump Group
| 1U***14 | Pump Group-Gear | 1 |
4t0384 Piston Pump Group-Slipper
| 4T***84 | Pump Group-Piston | 1 |
3y6893 Shaft Group
| 3Y***93 | Shaft Group | 1 |
5g0099 Hydraulic Tank And Filter Group
| 5G***99 | Tank & Filter Group | 1 |
5g0013 Hydraulic Tank Group
| 5G***13 | Tank Group-Hydraulic | 1 |
5g2582 Lines And Valve Group
| 5G***82 | Valve & Lines Group; Valve And Lines Group | 1 |
5g3692 Sideshift Lock Lines And Valve Group
| 5G***92 | Valve & Lines Group; Lines And Valve Group--Sideshift Lock | 1 |
5g3687 Lines And Valve Group
| 5G***87 | Valve & Lines Group; Lines And Valves Group | 1 |
7g6861 Valve Gp
| 7G***61 | Valve Group | 1 |
3g0777 Control Valve Group-Boom
| 3G***77 | Valve Group | 1 |
1u2576 Bank Valve Group
| 1U***76 | Valve Group-Bank | 1 |
1u1023 Bank Valve Group-2 Valve
| 1U***23 | Valve Group-Bank 2 | 1 |
1u1025 Bank Valve Group-Lift, Tilt, & Ripper
| 1U***25 | Valve Group-Bank 3; Valve Gp-Bank-3 Valve | 1 |
1u1024 Bank Valve Group-Lift, Tilt & Multi-Purpose
| 1U***24 | Valve Group-Bank 3; Valve Gp-Bank-3 Valve | 1 |
1u1026 Bank Valve Group-Lift, Tilt, Multi-Purpose-Bucket & Ripper
| 1U***26 | Valve Group-Bank 4; Valve Gp-Bank-4 Valve | 1 |
6s4767 Breaker Relief Valve Group
| 6S***67 | Valve Group-Breaker Relief | 1 |
8j9471 Lift Cylinder Make-Up Valve Group
| 8J***71 | Valve Group-Check; -Lift Cylinder Circuit | 1 |
1u4630 Control Valve Group-Swing
| 1U***30 | Valve Group-Control | 1 |
5g0334 Control Valve Group-Bucket
| 5G***34 | Valve Group-Control | 1 |
3g0778 Control Valve Group-Bucket & Stabilizers
| 3G***78 | Valve Group-Control; (Rh Stabilizer) | 1 |
6s9822 Control Valve Group
| 6S***22 | Valve Group-Control | 1 |
9j0717 Control Valve Group-Ripper
| 9J***17 | Valve Group-Control | 1 |
3g2887 Diverter Valve Group
| 3G***87 | Valve Group-Diverter; -Towing, Parking Brake Release | 1 |
9j0715 Lift Cylinder Control Valve Group
| 9J***15 | Valve Group-Lift Control | 1 |
9j0710 Relief Valve Group-Direct Operated-Ripper Cylinder
| 9J***10 | Valve Group-Relief | 1 |
9j0798 Relief Valve Group-Backhoe-Pilot Operated
| 9J***98 | Valve Group-Relief | 1 |
4t2591 Relief Valve Group-Pilot Operated
| 4T***91 | Valve Group-Relief; (Pressure) | 1 |
9j0723 Pilot Operated Relief Valve Group-Main
| 9J***23 | Valve Group-Relief | 1 |
8j9469 Tilt Cylinder Relief Valve Group-Pilot Operated-Dump
| 8J***69 | Valve Group-Relief | 1 |
9j0797 Pilot Operated Relief Valve Group
| 9J***97 | Valve Group-Relief; (Pilot Operated) | 1 |
8j9475 Relief Valve Group-Direct Operated
| 8J***75 | Valve Group-Relief | 1 |
7g6799 Selector And Pressure Control Valve Group
| 7G***99 | Valve Group-Selector & Press Cont | 1 |
9t1076 Servo Valve Group
| 9T***76 | Valve Group-Servo | 1 |
9j0719 Tilt Control Valve Group
| 9J***19 | Valve Group-Tilt Control | 1 |
Implements
5g2150 Fixed Pivot Backhoe Arrangement
| 1U***55 | Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-R.H | 1 |
| 1U***56 | Cylinder Group-Backhoe Stabilizer; Cylinder Gp-Backhoe Stabilizer-L.H | 1 |
| 3G***67 | Cylinder Group-Backhoe Boom | 1 |
5g3690 Sideshift Backhoe Arrangement
| 3G***67 | Cylinder Group-Backhoe Boom | 1 |
| 3G***71 | Cylinder Group-Backhoe Stick | 1 |
| 3G***05 | Cylinder Group-Backhoe Bucket | 1 |
4t0807 Bit And Cutting Edge Group
| 4T***07 | Bit & Cutting Edge Group | 1 |
4t0805 Bit And Cutting Edge Group
| 4T***05 | Bit & Cutting Edge Group | 1 |
5g2721 Boom Group
| 5G***21 | Boom Group; Boom Group | 1 |
5g1679 Multi-Purpose Bucket Arrangement
| 3G***65 | Cylinder Group-Bucket; Cylinder Gp-Multi-Purpose Bucket | 2 |
| 5G***52 | Lines Group-Hydraulic; Hydraulic Lines Group | 1 |
| 5G***79 | Bucket Ar-Multipurpose | 1 |
5g3475 General Purpose Bucket Assembly
| 5G***75 | Bucket As-General Purpose | 1 |
5g2811 General Purpose Bucket Assembly
| 5G***11 | Bucket As-General Purpose | 1 |
5g0887 Hoe Bucket Group-457.2 Mm (18 In.) Wide
| 5G***87 | Bucket Group-Hoe | 1 |
5g0885 Hoe Bucket Group-690.6 Mm (24 In.) Wide
| 5G***85 | Bucket Group-Hoe | 1 |
5g0888 Hoe Bucket Group-762 Mm (30 In.) Wide
| 5G***88 | Bucket Group-Hoe | 1 |
5g0886 Hoe Bucket Group-914.4 Mm (36 In.) Wide
| 5G***86 | Bucket Group-Hoe | 1 |
5g4091 Multi-Purpose Bucket Group
| 5G***91 | Bucket Group-Multipurpose; Multi-Purpose Bucket Group | 1 |
7g9424 Covers And Case Group
| 7G***24 | Case & Covers Group-Winch | 1 |
6y1467 Case & Covers Gp
| 6Y***67 | Case & Covers Group-Winch | 1 |
7t5187 Gear & Clutch Gp-Part 1 Of 2
| 7T***87 | Clutch & Gear Group | 1 |
6y1907 Gear & Clutch Gp-Part 2 Of 2
| 6Y***07 | Clutch & Gear Group; Gear & Clutch Gp | 1 |
7t5187 Gear & Clutch Gp-Part 2 Of 2
| 7T***87 | Clutch & Gear Group | 1 |
6y1907 Gear & Clutch Gp-Part 1 Of 2
| 6Y***07 | Clutch & Gear Group; Gear & Clutch Gp | 1 |
5g2543 Console Group
| 5G***43 | Console Group; Backhoe Console Group | 1 |
5g3594 Backhoe Console Group
| 5G***94 | Console Group-Backhoe; Console Group-Backhoe | 1 |
5g2586 Mounting And Control Group
| 5G***86 | Control & Mounting Group; Backhoe Mounting & Control Group | 1 |
5g3960 Bucket Control Group
| 5G***60 | Control Group-Bucket | 1 |
6y2216 Control Gp-Winch
| 6Y***16 | Control Group-Winch | 1 |
5g3938 Control Gp-Towing Winch
| 5G***38 | Control Group-Winch; Control Gp-Towing Winch | 1 |
5g2636 Control Gp-Towing Winch
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
6t2291 Control Gp-Winch Hydraulic
| 6T***91 | Control Group-Winch Hydraulic | 1 |
6y2176 Conversion Ar-Winch
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 5 |
| 1A***83 | Bolt (4.75" Long-Location "B") | 2 |
| 3T***80 | Cover As | 1 |
7t3874 Conversion Ar-Winch
| 7T***74 | Conversion Ar-Winch | 1 |
3t9837 Conversion Ar-Winch-Directional
| 3T***37 | Conversion Ar-Winch | 1 |
6y2217 Conversion Gp-Winch
| 6Y***17 | Conversion Group-Winch | 1 |
9g0921 Winch Conversion Arrangement-Power Out
| 9G***21 | Conversion Group-Winch | 1 |
6y1959 Conversion Gp-Winch
| 6Y***59 | Conversion Group-Winch | 1 |
7g9547 Conversion Gp-Winch-Anti-Fallback
| 7G***47 | Conversion Group-Winch | 1 |
7g9447 Covers Gp-Shipping
| 2M***80 | Seal--To Connector Pump Outlet | 1 |
| 3T***85 | Cover-Shipping; Shipping Cover | 1 |
| 7G***47 | Cover Group-Shipping; Shipping Cover Group | 1 |
7g9470 Drive Gp-Winch
| 7G***70 | Drive Group-Winch | 1 |
5g2235 Backhoe Frame Group
| 5G***35 | Frame Group; Backhoe Frame Group | 1 |
5g3260 Backhoe Frame Group
| 5G***60 | Frame Group; Frame Group-Backhoe | 1 |
5g3443 Sliding Frame Group
| 5G***43 | Frame Group-Sliding; Sliding Frame Group | 1 |
5g2465 Swing Frame Group
| 5G***65 | Frame Group-Swing; Swing Frame Group | 1 |
5g3535 Bucket Indicator Group
| 5G***35 | Indicator Group-Bucket | 1 |
5g2695 Bucket Linkage Group
| 5G***95 | Linkage Group-Bucket; Bucket Linkage Group | 1 |
6t2288 Manifold Gp-Filter Base & Pressure Control
| 6T***88 | Manifold Group | 1 |
5g2173 Backhoe Mounting Arrangement
| 5G***73 | Mounting Ar-Backhoe | 1 |
| 5G***34 | Seat Group; Reversible Seat Group | 1 |
| 5G***41 | Gauge Group-Hydraulic Oil Temp; Hydraulic Oil Temperature Gauge Group | 1 |
6s6371 Backhoe Mounting Group
| 6S***71 | Mounting Group-Backhoe; Backhoe Mounting Group | 1 |
6s5905 Cylinder Mounting Group
| 6S***05 | Mounting Group-Cylinder; Cylinder Mounting Group | 1 |
8j3294 Ripper Mounting Group
| 8J***94 | Mounting Group-Ripper; Ripper Mounting Group | 1 |
7g9423 Mounting Gp-Winch
| 7G***23 | Mounting Group-Winch | 1 |
5g4320 Street Pad Group
| 5G***20 | Pad Group-Street | 1 |
6s7799 Street Pad Group
| 6S***99 | Pad Group-Street | 1 |
8j0631 Ripper Ar
| 6S***59 | Lines Group-Ripper; Ripper Lines Group | 1 |
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
| 7J***20 | Cylinder Group-Ripper | 1 |
8j3334 Ripper Group
| 8J***34 | Ripper Group; Ripper Group | 1 |
5g2979 Stablizer Group-2 Required
| 5G***79 | Stabilizer Group; Stabilizer Group | 1 |
5g2963 Step Group
| 5G***63 | Step Group; Step Group | 1 |
5g2717 Hoe Stick Group
| 5G***17 | Stick Group-Hoe; Backhoe Stick Group | 1 |
8j5313 Tooth Group
| 8J***13 | Tooth Group | 1 |
9j4208 Tooth Group
| 9J***08 | Tooth Group | 1 |
1u1529 Tooth Group-Short
| 1U***29 | Tooth Group | 1 |
1u1530 Tooth Gp
| 1U***30 | Tooth Group | 1 |
9j0613 Loader Tooth Group-Uni
| 9J***13 | Tooth Group-Loader | 1 |
1u1528 Tooth Group-Long
| 1U***28 | Tooth Group-Long | 1 |
1u1527 Tooth Group-Short
| 1U***27 | Tooth Group-Short | 1 |
1u2423 Uni-Tooth Group
| 1U***23 | Tooth Group-Uni | 1 |
1u2422 Uni-Tooth Group
| 1U***22 | Tooth Group-Uni | 1 |
6t2289 Valve Gp
| 6T***89 | Valve Group | 1 |
6t2287 Valve Gp-Selector & Pressure Control
| 6T***87 | Valve Group-Selector & Press Cont | 1 |
7t5189 Winch Ar
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
| 5G***74 | Pump & Lines Group | 1 |
| 7G***23 | Mounting Group-Winch | 1 |
6y2219 Winch Ar
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
| 5G***74 | Pump & Lines Group | 1 |
| 6Y***56 | Winch Ar-Towing | 1 |
7t5188 Towing Winch Arrangement
| 4B***58 | Screw (Identification Plate) Mounting | 4 |
| 6V***27 | Plate, Serial Number; On Left Hand Side Of Winch | 1 |
| 7G***98 | Control Group-Winch; Winch Hydraulic Control Group | 1 |
6y2056 Winch Ar-Towing
| 4B***58 | Screw (Identification Plate) Mounting | 4 |
| 6V***27 | Plate, Serial Number; On Left Hand Side Of Winch | 1 |
| 6V***46 | Film-Cat-Each Side | 1 |
Lubrication System
6n3382 Breather Group
| 6N***82 | Breather Group; Breather Group | 1 |
1n3224 Oil Filter Group
| 1N***24 | Filter Group-Oil; Oil Filter Group | 1 |
7w0297 Fumes Disposal Group
| 7W***97 | Fumes Disposal Group; Fumes Disposal Group | 1 |
1w0367 Oil Level Gauge Group
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
2w6697 Oil Pump Group-Without Housing
| 2W***97 | Pump Group-Oil-Without Housing | 1 |
Power Train-Power Transmission Unit
6t3921 Transmission Brake Group
| 6T***21 | Brake Group-Transmission; Transmission Brake Group | 1 |
6t3923 Transmission Case And Covers Group
| 6T***23 | Case & Parts Group-Planetary; Transmission Case And Covers Group | 1 |
7t6174 Flywheel Clutch Group
| 7T***74 | Clutch Group-Flywheel | 1 |
5g4694 Clutch Control Group
| 5G***94 | Control Group-Clutch | 1 |
5g4883 Forward And Reverse Control Group
| 5G***83 | Control Group-Forward/Reverse | 1 |
5g5911 Power Take-Off Drive Group
| 5G***11 | Drive Group-Power Take-Off | 1 |
5g5292 Power Train Oil Filler Group
| 5G***92 | Filler Group-Power Train Oil | 1 |
9p1509 Transmission Filter Group-With Housing
| 9P***09 | Filter Group-Transmission; (Trans.) | 1 |
6s3604 Final Drive Gp-Part 2 Of 2
| 6S***04 | Final Drive Group | 1 |
6s7402 Final Drive Gp-Part 2 Of 2
| 6S***02 | Final Drive Group | 1 |
6s7402 Final Drive Gp-Part 1 Of 2
| 6S***02 | Final Drive Group | 1 |
6s3604 Final Drive Gp-Part 1 Of 2
| 6S***04 | Final Drive Group | 1 |
5g4719 Bevel Gear Group
| 5G***19 | Gear Group-Bevel | 1 |
6t3922 Transmission Gear Group-Part 2 Of 2
| 6T***22 | Gear Group-Transmission | 1 |
6t3922 Transmission Gear Group-Part 1 Of 2
| 6T***22 | Gear Group-Transmission | 1 |
5g4666 Power Train Oil Lines Group
| 5G***66 | Lines Group-Power Train Oil | 1 |
6t4410 Transmission Gear Pump Group-2 Section
| 6T***10 | Pump Group-Transmission; Pump Gp-Transmission Gear | 1 |
6t4411 Transmission Gear Pump Group-2 Section
| 6T***11 | Pump Group-Transmission | 1 |
6t3919 Shift Gp-Gear-Part 1 Of 2
| 6T***19 | Shift Group-Gear | 1 |
6t3919 Shift Gp-Gear-Part 2 Of 2
| 6T***19 | Shift Group-Gear | 1 |
6t3924 Transmission Ar-Direct Drive
| 6T***19 | Shift Group-Gear | 1 |
| 6T***21 | Brake Group-Transmission; Transmission Brake Group | 1 |
| 6T***22 | Gear Group-Transmission | 1 |
5g1823 Universal Joint Group
| 5G***23 | Universal Joint Group | 1 |
7t0706 Valve Group
| 7T***06 | Valve Group | 1 |
6t9284 Valve Group-Selector & Pressure Control
| 6T***84 | Valve Group-Selector & Press Cont | 1 |
Service Equipment And Supplies
Gasket Kits
| 6V***96 | Rebuild Kit (Water Pump) | 0 |
| 8T***76 | Rear Structure | 0 |
| 8T***30 | Multiple Cylinder Head | 0 |
8f9866 Grease Gun Assembly
| 8F***66 | Grease Gun As | 1 |
3p2244 Hand Tool Group
| 3P***44 | Hand Tool Group | 1 |
Name Plates And Transfers
| 03***91 | Pop - Rivet (To Secure Safety Lable) | 4 |
| 2P***31 | Film--Cat On Each Side Of Radiator Guard; Film--Cat On Each Side--Above Drum Shaft | 2 |
| 2P***44 | Film-Caterpillar; On Front Of Radiator Guard | 1 |
Starting And Electrical System
7n4784 Alternator Group-12 Volt, 40 Ampere
| 7N***84 | Alternator Group-Charging | 1 |
1w4263 Alternator Group
| 1W***63 | Alternator Group-Charging | 1 |
8n2822 Alternator Group-12 Volt, 75 Ampere
| 8N***68 | Alternator Group-Charging | 1 |
| 8N***22 | Alternator Group-Charging | 1 |
| 9S***73 | Circuit Breaker (60 Amps); Circuit Breaker-60 Ampere | 1 |
8n2268 Alternator Group-12 Volt, 75 Ampere
| 8N***68 | Alternator Group-Charging | 1 |
5g0237 Battery And Wiring Group-Part 3 Of 3
| 5G***37 | Battery & Wiring Group | 1 |
5g0237 Battery And Wiring Group-Part 1 Of 3
| 5G***37 | Battery & Wiring Group | 1 |
5g0237 Battery And Wiring Group-Part 2 Of 3
| 5G***37 | Battery & Wiring Group | 1 |
6s3548 Battery Group-Heavy Duty
| 6S***48 | Battery Group | 1 |
5g1812 Electric Horn Group
| 5G***12 | Horn Group-Electric | 1 |
5g1715 Lighting Group-3 Lamp-12 Volt
| 5G***15 | Lighting Group | 1 |
5g2541 Ether Starting Aid Group
| 5G***41 | Starting Aid Group-Ether | 1 |
4n0241 Electric Starting Motor Group
| 4N***41 | Starting Motor Group-Electric | 1 |
4n0190 Electric Starting Motor Group-12 Volt
| 4N***90 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
9g5517 Switch Assembly-12 Volt
| 9G***17 | Switch As | 1 |
8n0410 Solenoid Group
| 8N***10 | Switch Group; (Magnetic) | 1 |
5g5898 Backup Warning Group
| 5G***98 | Warning Group-Backup | 1 |
Steering Clutches And Brakes
5g5890 Steering Brake Gp-Part 2 Of 3
| 5G***90 | Brake Group-Steering | 1 |
5g8740 Brake Gp-Steering-Part 1 Of 3
| 5G***40 | Brake Group-Steering | 1 |
5g5890 Steering Brake Gp-Part 3 Of 3
| 5G***90 | Brake Group-Steering | 1 |
5g5890 Steering Brake Gp-Part 1 Of 3
| 5G***90 | Brake Group-Steering | 1 |
5g8740 Brake Gp-Steering-Part 2 Of 3
| 5G***40 | Brake Group-Steering | 1 |
5g8740 Brake Gp-Steering-Part 3 Of 3
| 5G***40 | Brake Group-Steering | 1 |
5g5891 Steering Clutch Case Group
| 5G***91 | Case Group-Steering Clutch | 1 |
5g8741 Case Gp-Steering Clutch
| 5G***41 | Case Group-Steering Clutch; Case Gp-Steering-Clutch | 1 |
6s3528 Steering Clutch Group
| 6S***28 | Clutch Group-Steering | 1 |
5g8725 Clutch Gp-Steering
| 5G***25 | Clutch Group-Steering; Clutch Gp-Steering Brake | 1 |
5g4699 Control Gp-Steering Clutch-Part 2 Of 2
| 5G***99 | Control Group-Steering Clutch | 1 |
5g4699 Control Gp-Steering Clutch-Part 1 Of 2
| 5G***99 | Control Group-Steering Clutch | 1 |
5g4699 Steering Clutch Control Group-Part 2 Of 2
| 5G***99 | Control Group-Steering Clutch | 1 |
5g4699 Steering Clutch Control Group-Part 1 Of 2
| 5G***99 | Control Group-Steering Clutch | 1 |
5g1073 Brake Band Lining Assembly*R
| 5G***73 | Lining & Band As | 1 |
5g6114 Steering Ar-Clutch & Brake Oil
| 1A***57 | Ball-Steering Clutch Release Yoke | 1 |
| 1M***23 | Insert-Steering Clutch Release Yoke | 1 |
| 5G***14 | Steering Ar-Oil Clutch & Brake | 1 |
5g8121 Valve Gp-Control
| 5G***21 | Valve Group; (Right Steer. | 1 |
5g8120 Valve Gp-Control
| 5G***20 | Valve Group; (Lh Control) | 1 |
5g0706 Valve Gp-Control
| 5G***06 | Valve Group-Control | 1 |
5g0145 Control Valve Group
| 5G***45 | Valve Group-Control | 1 |
931 serial number reference
The PIN plate on a 931 track-type loader is riveted to the main frame, typically on the right-hand side near the operator's platform or front of the frame rail (check there and on the transmission case if it is missing or repainted over). Pre-2002 Cat machines of this era use a short serial format: a 3-character prefix (2 digits + 1 letter, e.g. 78U) followed by a sequential unit number, stamped as PREFIX + number (e.g. 78U03914) rather than the modern 17-character PIN.
| Prefix | Identifies | Notes |
|---|---|---|
| 10N | 931 track-type loader, LGP (low ground pressure) configuration | 3204 diesel, clutch-and-brake (dry steering clutch) steering. Covered alongside 78U in the same factory Traxcavator service manual. Direct injection and sealed-and-lubricated track (SALT) phased in around serial 10N00526 (about 1977), same update wave as 78U03914 and 81U00931. Confirm exact cutover point with dealer; factory literature does not give a clean end-of-run number. |
| 78U | 931 track-type loader, 3F/1R powershift transmission | 3204 diesel. Early units used precombustion-chamber fuel injection; direct injection and SALT track were phased in around serial 78U03914 (about 1977). Built in Japan under the Caterpillar/Mitsubishi joint venture. Clutch-and-brake steering, not differential steering. |
| 81U | 931 track-type loader, 3F/3R powershift transmission | 3204 diesel, the 3-forward/3-reverse counterpart to the 78U run. Serials below 81U00930 originally carried the precombustion-chamber 3204; 81U00931 and up got the direct-injection 3204 and SALT track. Built in Japan (Mitsubishi). Clutch-and-brake steering. |
| 87U | 931 factory backhoe attachment | Serial prefix for the bolt-on backhoe attachment itself, not the loader chassis; the same attachment serial range was also fitted to the D3 crawler tractor. 87U may denote the fixed-pivot backhoe configuration versus 88U's side-shift, but this split is unconfirmed. Confirm with dealer. |
| 88U | 931 factory backhoe attachment | Serial prefix for the bolt-on backhoe attachment, running mate to 87U in the same parts documentation; also shared with the D3 crawler tractor's backhoe option. Possibly the side-shift version versus 87U's fixed-pivot, unconfirmed. Confirm with dealer. |
Frequently asked questions
What engine is in the Caterpillar 931?
A Caterpillar 3204, a naturally aspirated, mechanically governed 4-cylinder diesel rated at approximately 62 hp (46.2 kW) net. There is no electronic engine management; monitoring is by analog gauges and warning lamps only.
What is the operating weight of the Caterpillar 931?
Operating weight runs from about 6,900 kg (15,200 lb) in base configuration up to about 7,775 kg (17,140 lb) for the LGP version, depending on shoe width and attachments fitted.
What replaced the Caterpillar 931?
Caterpillar replaced the 931 with the 931B in 1979, which brought increased breakout force and revised brake hardware. The line continued later with the 931C and then the 931C Series II.
What 931 owners discuss
Is engine blow-by normal on the 931's 3204 diesel, or a sign of a tired engine?
Some blow-by is factory-normal on this engine. The naturally aspirated 3204 in the 931 was built with a two-ring piston design rather than three rings, a low-friction setup Caterpillar used on these mechanical diesels to keep throttle response crisp. That piston design vents more crankcase pressure than later turbocharged 3204 variants, which moved to three-ring pistons because blow-by became unmanageable with boost added. On a used 931, expect a noticeable breather smoke haze and some case pressure even on a healthy engine; it's hard to use blow-by alone as a wear gauge on this design. If blow-by is heavy enough to push oil out the breather or foul the air cleaner, a compression check and inspection for scored cylinder walls is the next step. Aftermarket three-ring piston kits exist for rebuilds and are commonly chosen over factory two-ring replacements to cut blow-by and firm up compression. Have your dealer or engine rebuilder verify cylinder condition before committing to a rebuild path.
The engine loses power and bogs down under load, then clears up at idle - what's the usual cause?
This pattern points to the fuel system rather than the injectors themselves in most cases owners report. A restricted fuel transfer pump screen or strainer is a frequent culprit: it starves the pump under load demand but allows enough flow at idle to mask the problem, so the engine seems to recover once load comes off. Air entering the fuel system through a loose suction-side fitting or a cracked line produces the same symptom. Before condemning injectors, check and clean the transfer pump screen, inspect all fuel lines and fittings from tank to lift pump for air leaks, and bleed the system after any part is disturbed. A dirty air filter or worn injector can compound rough running and smoke, so work through fuel supply first, then compression and injector condition if the bogging persists.
The steering clutch pedal doesn't fully release the clutch and the machine won't turn cleanly - what's going on?
On the base 931 the steering clutches and brakes are dry, not wet, which means the adjusters can seize from age and rust if the machine sat outside or wasn't serviced regularly. Pedal travel on these machines is sequential: the first part of pedal movement disengages the steering clutch, and only the last part of travel applies the brake to force the turn. If the clutch isn't fully releasing first, the brake has nothing to work against and the turn will drag or not happen at all. Correct procedure is to back the brake adjustment off, adjust the steering clutch first, then bring the brake adjustment back in - adjusting the brake before the clutch is a common mistake that masks a clutch problem. To confirm the clutch is releasing, start the engine, hold both pedals down, put the machine in gear, and it should not move; if it creeps, the clutch is still partially engaged. Have your dealer verify clutch and brake adjustment before returning the machine to grade work near people or equipment.
Engine revs fine but the machine has no power going up an incline or under load - transmission or something else?
This is a classic powershift/torque converter symptom on these machines and it usually traces back to oil condition or pump pressure rather than a worn clutch pack. Start with the transmission oil level and look closely at its condition - foamy or milky oil means air is being drawn into the suction side, most often from a loose or cracked suction hose, and that air causes the converter to lose charge pressure and slip under load even though the engine sounds fine. Low converter fill pressure, worn pump drive, or a loose modulating relief valve adjustment produce the same complaint. Pressure at the transmission valve body can be checked at the pipe plugs on top of the case, but there are multiple plugs for different circuits, so identify the correct port before drawing conclusions. Use the transmission-specific hydraulic oil the machine calls for, not a generic hydraulic fluid, since the steering clutch oil supply is drawn from the same transmission system. Have your dealer verify pump and converter pressures on a gauge before any internal transmission work is scheduled.
What undercarriage wear pattern should an owner expect and watch for on a 931?
Track tension has an outsized effect on how fast the undercarriage wears on this machine. Running tracks too tight increases load between every link, roller, and idler, and idlers take the brunt of it - accelerated idler bearing wear, track tears, and a noticeable power loss are the typical results of an overtightened track. Tension should be checked at least weekly, more often in muddy or rocky ground where debris packs behind the rollers. When inspecting a machine, look at rollers and sprocket segments for cupping or thin flanges, check idler wear strips, and confirm the idlers are aligned - misaligned idlers chew through new parts quickly, wasting money on a fresh undercarriage. One quirk specific to these older loaders: some were re-shod with a different pad brand's rail system over their life, and those pads are not interchangeable with the original rail profile, so confirm what's actually bolted on before ordering replacement pads or shoes.
Starting and charging system quirks on the 931 - what should an owner know before chasing an electrical gremlin?
This machine predates any electronic engine controls, so the electrical system is limited to starting, charging, and gauge circuits - there's no sensor network to diagnose. The system runs off a start switch, a starter relay/solenoid, and a circuit breaker with a manual reset button in place of a fuse between the battery and the ammeter circuit; if the breaker trips, look for a direct short rather than assuming a blown fuse, because there isn't one to replace. Glow plugs are wired off the start switch circuit and are the first thing to check for hard cold starting once fuel supply is ruled out. A weak or sulfated battery, corroded ground straps, or a tired alternator/generator will show up as slow cranking or a discharge reading on the ammeter gauge rather than any warning light, since these gauges are simple analog readouts. Given the age of the wiring insulation on unrestored machines, inspect for cracked, brittle, or previously spliced wiring near the starter and battery cables - deteriorated wiring in this area has been linked to under-hood fires on well-worn units. Have your dealer or an equipment electrician verify wiring insulation and connections before extended unattended operation.
What should a buyer inspect first when looking at a used 931?
Steering clutches and brakes are the first thing experienced buyers check, because on a dry-clutch machine of this age, repair cost can exceed the machine's value if the clutches and brake bands need replacing rather than just adjusting. If a seller mentions the steering clutch just needs adjustment, treat that as a caution rather than reassurance - if the fix were that simple and cheap, most sellers would have already done it before listing. Undercarriage condition is the second major cost driver: tracks, rollers, idlers, sprockets, and final drives are all wear items that add up fast, and a full undercarriage replacement is a major expense relative to what these machines sell for. Confirm what brand of track pad or shoe is actually installed, since some machines were re-shod with a different manufacturer's rail system that isn't interchangeable with the original. On the engine side, remember the 3204 is naturally aspirated with a two-ring piston design that runs some blow-by even when healthy, so use a compression test and oil condition rather than visible crankcase smoke alone to judge engine health. Bring someone who has run and wrenched on one of these machines before if possible, since the combination of dry clutches, an aging powershift, and undercarriage wear can hide expensive problems behind a machine that otherwise looks and runs fine. Have your dealer or an independent equipment inspector verify clutch, brake, and undercarriage condition before finalizing any purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Caterpillar 931. Related factory variants of the same model family:
931
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