Caterpillartrack-type tractorbulldozer
Caterpillar D5C PATLGP
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar D5C PATLGP is a compact track-type tractor in Cat's D3-D5 utility dozer class, built from roughly 1991 to 2001-2002 as the direct successor to the D5B. PATLGP designates the factory combination of a PAT (Power Angle Tilt) hydraulic blade and the LGP (Low Ground Pressure) wide-track undercarriage, giving an operating weight of about 8,972 kg (19,780 lb) versus roughly 8,428-8,487 kg (18,580-18,711 lb) on a standard-gauge D5C. Early Series I/II production ran the Cat 3204 turbocharged four-cylinder diesel, rated near 67 kW (90 hp) net, paired with a 3-speed forward/3-speed reverse powershift transmission and torque converter. Series III production switched to the Cat 3046/3046T turbocharged diesel (roughly 4.4-5.0 L class), rated around 74.6 kW (100 hp) gross and 67 kW (90 hp) net, offered with either a direct-drive powershift or Caterpillar's dual-path Hystat hydrostatic drive. Caterpillar retired the D5C in favor of the D5G and D5G LGP.
Series III's move to the 3046/3046T engine and the added Hystat option was the significant change inside the D5C's run: Hystat's dual independent hydrostatic drive loops replaced the torque-converter powershift's step-shifted gears with infinitely variable speed and steering from a single joystick, at the cost of pump/motor wear becoming a real service item instead of clutch-pack wear. The PAT plus LGP combination itself targets grading finesse together with flotation on soft, wet, or loosely compacted ground - land-clearing, wetland, landfill, and utility work where a standard-gauge blade dozer would sink or rut. In the parts and used market today, the D5C PATLGP holds up mainly on mechanical simplicity - no ECM, no electronic fault codes, gauge-cluster diagnostics only - and on parts commonality across the shared D3C/D4C/D5C Series III catalog. Confirm engine and drivetrain generation against the PIN before buying or ordering, since the two eras differ enough that most major components don't cross over.
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 D5C PATLGP specifications
Engine
| Engine (Series II/III, Hystat drivetrain) | Cat 3046T diesel, turbocharged, 5.0 L (305 cu in) displacement. This is the engine most consistently documented for D5C PATLGP-class machines built from the mid-1990s through end of production. |
| Power, gross (Series III/Hystat) | 74.6 kW (100 hp) SAE gross |
| Power, net (Series III/Hystat) | 67 kW (90 hp) SAE net |
| Engine (early production, early 1990s) | Cat 3204 diesel, net rating near 67 kW (90 hp). Reported for early D5C units (circa 1991-1994) ahead of the Series II/III switch to the 3046T; thinner sourcing than the 3046T figures above — confirm against the serial range on hand. |
| Emissions tier | Pre-regulation. D5C production spans roughly the early 1990s to 2001/2002, ahead of nonroad diesel emissions standards applying to this size class. |
| Aspiration | Turbocharged (3046T); no factory aftercooling documented for this engine/size class |
Weights
| Operating weight, PATLGP/LGP configuration | 8,972 kg (19,780 lb) |
| Operating weight, standard-track configuration (comparison) | 8,428-8,487 kg (18,580-18,711 lb) — cited for context; PATLGP always rides on the wider LGP undercarriage above |
| Note | Factory literature does not break the PATLGP weight out separately from the general D5C LGP/Hystat figure; treat the LGP operating weight above as representative for PATLGP |
Dimensions
| Length with blade | 4.07 m (13 ft 4-5 in) |
| Length without blade | 3.00 m (9 ft 10 in) |
| Overall height, top of cab | 2.74 m (9 ft) |
| Ground clearance | 0.38-0.40 m (15.0-15.7 in) |
| Track gauge, LGP/PATLGP | 1.74 m (5 ft 8 in) |
| Track gauge, standard-track (comparison) | 1.55 m (5 ft 1 in) |
| Blade width, straight — LGP/PATLGP | 3.29 m (10 ft 10 in) |
| Blade width, straight — standard-track (comparison) | 2.74 m (9 ft) |
| Track shoe width, LGP/PATLGP | 660 mm (26 in) |
| Track shoe width, standard-track (comparison) | approx. 460 mm (18 in) — lightly sourced, treat as indicative |
Performance
| Drivetrain, Series II/III | Dual-path Hystat (hydrostatic): each track driven by its own closed-loop variable-displacement piston pump/motor circuit; single-lever joystick for speed, direction, and steering |
| Max travel speed, Hystat drivetrain | Infinitely variable up to 9.0 km/h (5.6 mph), forward and reverse alike |
| Drivetrain, early production | 3-speed forward/3-speed reverse powershift with torque converter, wet clutches and brakes |
| Max travel speed, powershift drivetrain (top forward gear) | approx. 9.7 km/h (6.0 mph). Reverse-gear speeds are not separately published in available sources. |
| Ground pressure | Not consistently corroborated for this configuration across available sources; published figures for this size/shoe-width class conflict. Confirm with a dealer or the OEM spec sheet for the exact serial range before quoting a number. |
| Drawbar pull | Not documented in publicly available specs for this configuration. |
| Gradeability | Not published in available sources for this size class. |
Blades
| Blade type | PAT (Power Angle Tilt) / VPAT hydraulic blade on the LGP undercarriage — hydraulically angled and tilted, no pin adjustment |
| Dig depth, PATLGP (VPAT blade) | 460 mm (18 in) |
| Lift height, PATLGP (VPAT blade) | 838 mm (33 in) |
| Max tilt, PATLGP (VPAT blade) | 483 mm (19 in) |
| Max angle | 25 degrees |
| Blade width, straight (PATLGP) | 3.29 m (10 ft 10 in) |
| Blade capacity | Not separately published in volume terms for the Series III VPAT/LGP blade in available sources. An early-production listing (1992-94-era, adjustable-pitch blade, 1.73 m/68 in width) cites approx. 1.93 m3 (2.53 cu yd); different blade generation, use with caution. |
| Comparison — standard-track blade (non-LGP) | Dig depth 483 mm (19 in), lift height 813 mm (32 in), max tilt 406 mm (16 in), width straight 2.74 m (9 ft), max angle 25 degrees |
Service capacities
| Fuel tank | 157 L (41.5 US gal) |
| Hydraulic system | 57 L (15 US gal) — single factory-data source; typical for this size class but confirm at service |
| Engine oil | Not documented in publicly available specs for this configuration; check the service manual or dipstick fill for the exact serial range |
| Cooling system | Not documented in publicly available specs for this configuration; check the service manual for the exact serial range |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D5C PATLGP fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Approx. 12.1-12.9 L (12.8-13.6 US qt) for either PATLGP generation (early 3204 or later Series III 3046T engine); confirm exact fill against the dipstick, not the number. | Cat DEO (Diesel Engine Oil). SAE 10W-30 in cooler ambient ranges, SAE 15W-40 in warmer ranges - select grade from the OMM ambient-temperature chart. |
| Cooling system | Approx. 20-21 L (21-22 US qt). Minor variance between the original and Series III engine/radiator package is expected; fill to the sight gauge. | Cat DEAC (conventional heavy-duty antifreeze/coolant) or Cat ELC (Extended Life Coolant), mixed per the OMM's water-to-coolant ratio for the ambient range. |
| Fuel tank | Varies by generation: original D5C PATLGP (3204 engine) approx. 166.5 L (44 US gal); D5C Series III PATLGP (3046T engine) 157 L (41.5 US gal). | No. 2-D diesel fuel per Caterpillar's diesel fuel specification; switch to No. 1-D or a winter-blend fuel in cold ambient temperatures to prevent fuel waxing. |
| Transmission / power train (powershift transmission and bevel gear-steering compartment; the OMM houses both in one combined power-train case, not split) | Approx. 28.4 L (30 US qt) for the combined case. | Cat TDTO (Transmission/Drive Train Oil, TO-4 spec). Graded SAE 10W, 30W, or 50W by ambient temperature per the OMM viscosity chart. |
| Final drives (each side) | 20.5 L (5.5 US gal) per side. | Cat TDTO (TO-4 spec), same grade selection as the power-train case. |
| Hydraulic system / tank | Approx. 56.8 L (15 US gal). This figure carries lower confidence than the other rows - verify against the sight gauge or dealer literature before use. | Cat TDTO (TO-4 spec) is the OMM-specified fluid for this era's open-center implement/steering hydraulic circuit; grade selection follows the same ambient-temperature chart as the power train. |
| Pivot shaft | Not applicable. The D5C low-drive undercarriage does not carry a separate pivot-shaft oil compartment in the sourced specifications. | n/a |
| Grease (chassis and pin points, including PAT blade angle/tilt linkage and equalizer bar) | Applied per the lubrication schedule at each grease fitting; not a bulk reservoir fill. | Cat Multipurpose Grease (moly-fortified Cat MPGM for heavy-load pins). NLGI Grade 1 or 2, selected by ambient temperature. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar D5C PATLGP maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 6,000 h |
|
Servicing the D5C PATLGP beyond the schedule
Predictive Maintenance & Fluid Analysis
Run oil-sample analysis on engine oil (Cat DEO), power-train/steering-compartment oil, final-drive oil each side, and hydraulic oil (Cat TDTO, TO-4 spec) at every fluid change to catch wear trends before failure. On Series III Hystat-drive units, watch for creep or shudder with the joystick centered - an early warning of pump or motor wear inside the closed-loop drive circuits, confirmed with a warm hydraulic pressure check at each drive pump. This machine predates electronic diagnostics, so gauge-cluster warning lamps and oil-sample trends replace a scan tool entirely.
Corrective & Common Repairs
Blade drift under load on the PAT group points to worn angle/tilt cylinder seals first, then a worn or debris-jammed angle valve spool if seals don't fix it. On Series III joystick pods, a Hystat range selector that won't shift, or shifts on its own, usually means worn membrane switches or wiring at the pilot solenoids, not a hydraulic fault. Hydraulic oil running hot while coolant stays normal points to a packed hydraulic-oil-cooler core, not the radiator. Early Series I/II 3204 engines risk rod-bearing failure if run hard or overheated.
Overhaul & Rebuild Points
Judge LGP undercarriage life by chain pitch across several links after taking up slack, checked against the LGP wear chart, not the standard-gauge chart. Bushing/pin wear leads sprocket wear on machines that push more than they travel. On Series III Hystat units, a rebuild-versus-exchange call on the drive pumps follows a warm pressure test; inspect port plates on any circuit out of spec. Powershift and direct-drive Series III machines instead wear at the torque-converter and steering clutch/brake packs; PAT cylinders are the other high-hour reseal point.
Seasonal & Environment Servicing
Cold weather: drop to the lighter DEO viscosity grade per the OMM chart, switch to winter-blend or No. 1-D fuel to prevent tank waxing, and confirm coolant freeze protection. Hot, dusty grading work loads the air filter and cooler cores faster; watch the restriction indicator and wash the radiator and hydraulic-oil-cooler cores together, since packed debris between them drives hydraulic overheating alone. In the wet, soft ground this LGP undercarriage is built for, check idler/roller seals for weeping and grease PAT hinge pins more often.
D5C PATLGP common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 101-7664 | Film | Lubrication service | Check fitment → |
| 123-4298 | Kit-Gasket | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D5C PATLGP fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Coolant Temperature Warning Lamp (red, thermometer symbol) | Engine coolant temperature has risen above the normal operating range | Low coolant level, debris-blocked radiator or screen, slipping fan belt, or stuck thermostat | Reduce load and idle the engine, then after cooldown check coolant level and clear the radiator core/screen of debris |
| Engine Oil Pressure Warning Lamp (red, oil-can symbol) | Engine lubrication oil pressure has dropped below the safe minimum | Low oil level, plugged oil filter, worn oil pump, or worn main/rod bearings | Shut the engine down immediately, check oil level and filter condition, do not restart until the cause is found |
| Charging System Warning Lamp (red, battery symbol) | Alternator output voltage is below normal, battery is not being charged | Broken or slipping alternator belt, failed alternator, or a loose/corroded wiring connection | Check belt tension and battery terminal connections, then have the charging system load-tested |
| Hydraulic Oil Temperature Warning Lamp | Hydraulic system oil temperature is above normal operating range | Low hydraulic fluid level, clogged hydraulic oil cooler fins, or sustained high-load operation | Reduce implement load and idle to cool down, then check fluid level and clean the cooler core |
| Air Filter Restriction Indicator (yellow) | Intake air filter restriction has reached the service limit | Clogged primary or secondary air filter element from dust ingestion | Service or replace the air filter element and reset the restriction indicator |
| Torque Converter/Transmission Oil Temperature Warning Lamp | Powertrain (torque converter/transmission) oil temperature is above normal | Low transmission oil level, prolonged high-load pulling, or a clogged transmission oil cooler | Reduce load or idle to allow cooling, then check fluid level and cooler condition |
| Hystat Drive System Warning Lamp (Series III Hystat drivetrain only) | Basic monitor panel on hydrostatic-drive units flags a pressure or temperature condition outside normal range in the closed-loop drive circuits | Low hydraulic fluid, worn drive pump or motor, or a faulty pressure/temperature sensor | Stop and check fluid level and oil cooler, then have a dealer run the drive system calibration/diagnostic check |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D5C PATLGP attachments & work tools
Blades
PAT (Power Angle Tilt) is the factory-standard blade for this D5C PATLGP configuration, giving hydraulic angle and tilt control from the cab. The wider D5C small-dozer line also offered straight S-blade, semi-universal (SU), and simpler angle-only (A) blade styles, though not all of these alternates are documented specifically for the LGP-undercarriage PATLGP unit. Blade width for D5C-class units runs roughly 2.7 m (about 8.8-9 ft) with angle travel near 25 degrees each way and roughly 41 cm (16 in) of tilt, but exact width/capacity figures vary by configuration (LGP vs XL vs standard gauge) so treat as approximate. VPAT (Variable Power Angle Tilt) is Caterpillar terminology tied to the current-generation D5/D6 (2019-and-later) line and does not apply to this 1990s-era D5C PATLGP.
Rippers
A rear-mounted parallelogram (radial) ripper frame with hydraulic lift/tilt cylinders fits the D5C PATLGP, sized for the D3-D5 dozer class. It is offered as a multi-shank frame with removable shank-and-tip positions, letting operators run a reduced shank count for wider, shallower ripping or drop to a single shank for maximum penetration in hard, frozen, or rocky ground and root work. Complete class-matched ripper assemblies (frame, shanks, tips, cylinder, hoses, mounting hardware) run roughly 330 kg (about 730 lb); this figure is aftermarket-sourced and can vary by supplier and shank count fitted.
Winches
A factory rear winch mounting group was offered for the D5C PAT/PATLGP powershift tractor, matched to the D3-D5 small-dozer class rather than the larger cable winches used on D6-D8 machines. Class-matched winch options include mechanical PTO/transmission-driven drum winches and hydraulic-motor winches built on the same frame and gear train, both sold specifically for D3-D5-class dozers rather than independent large-frame units.
Drawbars/counterweights
A rear drawbar is standard equipment on the D5C PATLGP for towing and for mounting rear implements such as a ripper or winch. A front counterweight group is available to rebalance the tractor when heavier rear attachments (winch, ripper) are fitted; fitment is serial-number dependent and not universally interchangeable across every front pull-hook/counterweight configuration.
Cab/ROPS guarding (forestry/waste)
Caterpillar did not offer a dedicated factory forestry or waste-handling guard package for the D5C the way it later did for D5G/D5M/D7E machines. The standard cab is an enclosed ROPS/FOPS structure; forestry- or waste-configured D5C units typically run dealer- or aftermarket-fitted screen kits (mesh or perforated-steel rear and front guards plus door and side window guards) sized for the D3C/D4C/D5C family rather than a single certified factory forestry package.
Hydraulic arrangement (front/rear tools)
The D5C PATLGP runs a single engine-driven gear-type implement pump feeding an open-center hydraulic system, split between the front PAT blade circuit (angle, tilt, lift) and the rear ripper circuit through a control valve bank at the operator's station. Fitting a rear ripper adds a control valve section dedicated to ripper lift/tilt; front blade and rear ripper functions run from separate valve sections rather than a shared one. Pump output and circuit sizing are matched to the 3204 diesel used on this PAT/PATLGP powershift configuration.
All D5C PATLGP assemblies by section
Every catalogued assembly group for the Caterpillar D5C PATLGP. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
4p6162 Air Cleaner Gp
| 4P***62 | Air Cleaner Group | 1 |
4p6674 Air Cleaner Gp
| 4P***74 | Air Cleaner Group | 1 |
8n4780 Cartridge Gp-Turbocharger*R
| 8N***80 | Cartridge Group-Turbocharger | 1 |
7e0831 Extension Gp-Exhaust
| 7E***31 | Extension Group-Exhaust | 1 |
4p6669 Lines Gp-Air
| 01***50 | Plug To Aftercooler Inlet Elbow | 1 |
| 4P***61 | Elbow-Exhaust | 1 |
| 4P***69 | Lines Group-Air | 1 |
4p6662 Lines Gp-Air
| 4P***62 | Lines Group-Air | 1 |
4p9377 Lines Gp-Turbocharger Oil
| 4P***77 | Lines Group-Turbocharger Oil | 1 |
6n6085 Manifold Gp-Exhaust
| 6N***85 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
4p6677 Muffler Gp
| 4P***77 | Muffler Group | 1 |
4m0310 Precleaner As
| 4M***10 | Precleaner As | 1 |
8n4774 Turbocharger Gp
| 8N***74 | Turbocharger Group | 1 |
6n5079 Turbocharger Gp
| 6N***79 | Turbocharger Group; Turbocharger Group | 1 |
Basic Engine
2w1337 Camshaft Gp-Single
| 2W***37 | Camshaft Group-Single; Single Camshaft Group | 1 |
4p6663 Cover Gp-Valve Mechanism
| 4P***63 | Cover Group-Valve Mechanism | 1 |
Crankshaft Bearing Replacement
| 8N***71 | .51 mm--Front Main--Non-Grooved | 3 |
| 8N***72 | .51 mm--Front Main--Non-Grooved | 3 |
| 8N***73 | 0 Standard--Front Main--Non-Grooved; 0 (Standard)-Front Main-Non-Grooved | 3 |
7c0688 Crankshaft Gp
| 7C***88 | Crankshaft Group; Crankshaft Group | 1 |
7n4821 Cylinder Block As
| 7N***21 | Cylinder Block As | 1 |
2w7902 Cylinder Block As
| 2W***02 | Cylinder Block As | 1 |
6n9049 Cylinder Block Gp
| 6N***49 | Cylinder Block Group; Cylinder Block Group | 1 |
7c3805 Cylinder Head As*R
| 7C***05 | Cylinder Head As | 1 |
9y6111 Cylinder Head As
| 9Y***11 | Cylinder Head As | 1 |
7c2296 Cylinder Head As
| 7C***96 | Cylinder Head As | 1 |
6n2397 Cylinder Head Gp*R
| 6N***97 | Cylinder Head Group; Cylinder Head Group | 1 |
7w9394 Cylinder Head Gp*R
| 7W***94 | Cylinder Head Group | 1 |
4p6668 Drive Gp-Fan (Belt)
| 4P***68 | Drive Group-Fan | 1 |
7n6937 Flywheel Gp
| 7N***37 | Flywheel Group; Flywheel Group | 1 |
1w1355 Gear Gp-Front
| 1W***55 | Gear Group-Front; Front Gear Group | 1 |
7n6344 Housing Gp-Flywheel
| 7N***44 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
2w4384 Housing Gp-Front
| 2W***84 | Housing Group-Front; Front Housing Group | 1 |
1w5554 Lifting Gp
6n8370 Pan Gp-Oil
| 6N***70 | Pan Group-Oil; Oil Pan Group | 1 |
4p0533 Piston & Rod Gp-3 Ring
| 4P***33 | Piston & Rod Group | 1 |
2w1040 Piston & Rod Gp
| 2W***40 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
2w4841 Piston Gp
| 2W***41 | Piston Group | 1 |
4p6666 Pulley Gp-Crankshaft
| 4P***66 | Pulley Group-Crankshaft | 1 |
4p6670 Support Gp-Engine & Transmission
| 4P***70 | Support Group-Engine & Tmsn | 1 |
1w5720 Valve Mechanism Gp
| 1W***20 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Cooling System
9n5659 Cooler Gp-Engine Oil
| 9N***59 | Cooler Group-Engine Oil | 1 |
7c7744 Cooler Gp-Engine Oil
| 7C***44 | Cooler Group-Engine Oil | 1 |
4p6675 Fan Gp-Blower
| 4P***75 | Fan Group-Blower | 1 |
4n0188 Lines Gp-Water
| 4N***88 | Lines Group-Water; Water Lines Group | 1 |
4n0660 Pump Gp-Water
| 4N***60 | Pump Group-Water; Water Pump Group | 1 |
4p6681 Radiator Gp
| 4P***81 | Radiator Group | 1 |
Electrical System
7n4784 Alternator Gp-Charging
| 7N***84 | Alternator Group-Charging | 1 |
1w4263 Alternator Gp-Charging
| 1W***63 | Alternator Group-Charging | 1 |
8n2822 Alternator Gp-Charging
| 6V***78 | Nut; (10-32-Thd) | 2 |
| 8F***34 | Lockwasher; (External Teeth) | 2 |
| 8N***68 | Alternator Group-Charging | 1 |
8n2268 Alternator Gp-Charging
| 8N***68 | Alternator Group-Charging | 1 |
8y5048 Battery & Wiring Gp-Part 2 Of 2
| 8Y***48 | Battery & Wiring Group | 1 |
8y5048 Battery & Wiring Gp-Part 1 Of 2
| 8Y***48 | Battery & Wiring Group | 1 |
6s3548 Battery Gp
| 6S***48 | Battery Group | 1 |
9x7779 Lamp Gp-Flood
| 9X***79 | Lamp Group-Flood; -Roading Lights | 1 |
9x9069 Lamp Gp-Flood
| 9X***69 | Lamp Group-Flood | 1 |
8y5067 Lighting Gp-3 Lamp
| 8Y***67 | Lighting Group-3 Lamp | 1 |
8y7145 Lighting Gp-3 Lamp
| 8Y***45 | Lighting Group-3 Lamp | 1 |
8y6562 Starting Aid Gp-Ether
| 8Y***62 | Starting Aid Group-Ether | 1 |
3e1865 Starting Motor Gp-Electric
| 3E***65 | Starting Motor Group-Electric | 1 |
4n0190 Starting Motor Gp-Electric
| 4N***90 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
8y5059 Warning Gp-Back-Up
| 8Y***59 | Warning Group-Backup | 1 |
Engine Arrangement
4p6540 Engine Ar-Part 2 Of 2
| 12***62 | Single Cylinder Head | 0 |
| 1W***54 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
| 1W***54 | Lifting Group | 1 |
4p6540 Engine Ar-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 |
Final Drive
8y1792 Drive Gp-Power Take-Off
| 8Y***92 | Drive Group-Power Take-Off | 1 |
8y7132 Final Drive Gp
| 8Y***32 | Final Drive Group | 1 |
8y5628 Final Drive Gp
| 8Y***28 | Final Drive Group | 1 |
8y6530 Final Drive Gp
| 8Y***30 | Final Drive Group | 1 |
8y7056 Universal Joint Gp
| 8Y***56 | Universal Joint Group | 1 |
Frame And Body
5g2342 Guard Gp-Brush
| 5G***42 | Guard Group-Brush | 1 |
5g2327 Guard Gp-Brush
| 5G***27 | Guard Group-Brush | 1 |
8y6570 Guard Gp-Brush
| 8Y***70 | Guard Group-Brush; Guard Gp-Brush | 1 |
8y7095 Counterweight Gp-Front
| 8Y***95 | Counterweight Group-Front | 1 |
5g0779 Drawbar Gp
| 5G***79 | Drawbar Group; (Fixed) | 1 |
8y5643 Firewall Gp
| 8Y***43 | Firewall Group | 1 |
8y5639 Firewall Gp
| 8Y***39 | Firewall Group | 1 |
8y1794 Frame Gp
| 8Y***94 | Frame Group | 1 |
8y6576 Guard Gp-Bottom
| 8Y***76 | Guard Group-Bottom | 1 |
8y1795 Guard Gp-Bottom
| 8Y***95 | Guard Group-Bottom | 1 |
8y7157 Guard Gp-Radiator
| 8Y***57 | Guard Group-Radiator | 1 |
8y1796 Guard Gp-Radiator
| 8Y***96 | Guard Group-Radiator | 1 |
8y1797 Hood & Guard Gp
| 8Y***97 | Hood & Guard Group | 1 |
8y7524 Sweep Ar
| 8Y***37 | Sweep Group | 1 |
| 8Y***57 | Guard Group-Radiator | 1 |
| 8Y***24 | Sweep Ar | 1 |
8y5637 Sweep Gp
| 8Y***37 | Sweep Group | 1 |
1531298 Track Gp
| 15***73 | Link As-Track | 1 |
| 15***98 | Track Group | 1 |
| 1M***08 | Nut-Track | 144 |
Fuel System
5g3612 Cap Gp-Protection
| 5G***12 | Cap Group-Protection; Fuel Filler Protection Cap Group | 1 |
8y5321 Control Gp-Decelerator
| 8Y***21 | Control Group-Decelerator | 1 |
8y5034 Control Gp-Governor
| 8Y***34 | Control Group-Governor | 1 |
4p9379 Filter Gp-Fuel
| 4P***79 | Filter Group-Fuel | 1 |
1w8730 Governor Gp
| 1W***30 | Governor Group | 1 |
8y1798 Lines Gp-Fuel
| 8Y***98 | Lines Group-Fuel | 1 |
7n0042 Lines Gp-Fuel Injection
| 7N***42 | Lines Group-Fuel Injection | 1 |
1w1354 Lines Gp-Fuel Injection
| 1W***54 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
4w0469 Pump Gp-Fuel Injection
| 4W***69 | Pump Group-Fuel Injection | 1 |
1w6539 Pump Gp-Fuel Injection
| 1W***39 | Pump Group-Fuel Injection | 1 |
2w6309 Pump Gp-Fuel Transfer
| 2W***09 | Pump Group-Fuel Transfer | 1 |
1006406 Pump Gp-Fuel Transfer
| 10***06 | Pump Group-Fuel Transfer | 1 |
1w0568 Pump Gp-Fuel Transfer
| 1W***68 | Pump Group-Fuel Transfer | 1 |
2w4403 Pump Gp-Fuel Transfer
| 2W***03 | Pump Group-Fuel Transfer; Fuel Transfer Pump Group | 1 |
4p6928 Governor & Fuel Injection Pump Gp
| 4P***28 | Pump Group-Gov & Fuel Inj | 1 |
8y1791 Tank Gp-Fuel
| 8Y***91 | Tank Group-Fuel | 1 |
4w5063 Torque Control Gp
| 4W***63 | Torque Control Group | 1 |
Hydraulic System
9j8698 Cylinder Gp-Angling-2 Required (Chgs 01-04)
| 9J***98 | Angling Cylinder Group; Angling Cylinder Group | 1 |
8y5053 Control Gp-Hydraulic Hand
| 8Y***53 | Control Group-Hydraulic Hand | 1 |
8y7111 Control Gp-Hydraulic Hand
| 8Y***11 | Control Group-Hydraulic Hand | 1 |
8y4983 Control Gp-Hydraulic Hand
| 8Y***83 | Control Group-Hydraulic Hand | 1 |
8y0639 Control Gp-Hydraulic Hand
| 8Y***39 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
8y4984 Control Gp-Hydraulic Hand
| 8Y***84 | Control Group-Hydraulic Hand | 1 |
7j9223 Cylinder Gp-Lift-2 Required (Chgs 01-09)
| 7J***23 | Lift Cylinder Group | 1 |
8y0246 Lines Gp-Rear
| 8Y***46 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment | 1 |
8e4276 Mounting Gp-Cylinder Lines
| 8E***76 | Mounting Group-Cylinder Lines; Mounting Gp-Cylinder Lines | 1 |
9j8674 Cylinder Gp-Tilt (Chgs 00-04)
| 9J***74 | Tilt Cylinder Group; Tilt Cylinder Group | 1 |
9t7250 Valve Gp-Bank
| 9T***50 | Valve Group-Bank; Valve Gp-Bank | 1 |
9t7249 Valve Gp-Bank
| 9T***49 | Valve Group-Bank | 1 |
9t7651 Valve Gp-Control
| 9T***51 | Valve Group-Control; -Hoist | 1 |
9t7641 Valve Gp-Control
| 9T***41 | Valve Group-Control; -Ripper | 1 |
9t7642 Valve Gp-Control
| 9T***42 | Valve Group-Control; -Angle, Tilt | 1 |
9t7638 Valve Gp-Relief
| 9T***38 | Valve Group-Relief; (Pilot Operated) | 1 |
9t7639 Valve Gp-Relief
| 9T***39 | Valve Group-Relief; (Direct Operated) | 1 |
7j9920 Cylinder Gp-Ripper (Chg 08)
| 7J***20 | Cylinder Group-Ripper | 1 |
8y5065 Hydraulic Ar-4 Valve
| 8Y***46 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment | 1 |
| 8Y***39 | Control Group-Hydraulic Hand; Control Gp-Hydraulic Hand | 1 |
| 8Y***83 | Control Group-Hydraulic Hand | 1 |
8y7126 Hydraulic Ar-4 Valve
| 8Y***46 | Lines Group-Rear Attachment; Lines Gp-Rear Attachment | 1 |
| 8Y***11 | Control Group-Hydraulic Hand | 1 |
| 8Y***26 | Hydraulic Ar | 1 |
8y5068 Hydraulic Ar-3 Valve
| 8Y***83 | Control Group-Hydraulic Hand | 1 |
| 8Y***84 | Control Group-Hydraulic Hand | 1 |
| 8Y***68 | Hydraulic Ar | 1 |
8e7558 Lines Gp-Angle & Tilt
| 8E***58 | Lines Group-Angle & Tilt | 1 |
8e9154 Lines Gp-Angle & Tilt
| 8E***54 | Lines Group-Angle & Tilt | 1 |
8y5054 Lines Gp-Hydraulic
| 8Y***54 | Lines Group-Hydraulic | 1 |
1015696 Lines Gp-Pump
| 10***96 | Lines Group-Pump | 1 |
8y5634 Lines Gp-Pump
| 8Y***34 | Lines Group-Pump | 1 |
6s3559 Lines Gp-Ripper
| 6S***59 | Lines Group-Ripper; Ripper Lines Group | 1 |
6y2111 Lines Gp-Winch
| 6Y***11 | Lines Group-Winch | 1 |
3g5385 Pump Gp-Gear
| 3G***85 | Pump Group-Gear | 1 |
8j4513 Pump Gp-Gear
| 8J***13 | Pump Group-Gear | 1 |
8j4512 Pump Gp-Gear
| 8J***12 | Pump Group-Gear; Gear Pump Group-Single Section | 1 |
8y5069 Tank & Filter Gp-Hydraulic
| 8Y***69 | Tank & Filter Group | 1 |
8y5318 Tank Gp-Hydraulic
| 8Y***18 | Tank Group-Hydraulic | 1 |
8y5055 Valve & Mounting Gp
| 8Y***55 | Valve & Mounting Group | 1 |
6s4767 Valve Gp-Breaker Relief
| 6S***67 | Valve Group-Breaker Relief | 1 |
9t7634 Valve Gp-Check
| 9T***34 | Valve Group-Check; -Makeup | 1 |
Implements
8y2451 Lines & Pump Gp
| 8Y***51 | Pump & Lines Group | 1 |
3g5046 Pump Gp-Gear
| 3G***46 | Pump Group-Gear | 1 |
6e1413 Pump Gp-Gear
| 6E***13 | Pump Group-Gear | 1 |
5g0269 Mounting Gp-Trunnion
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
6y5836 Bit & Cutting Edge Gp
| 6Y***36 | Bit & Cutting Edge Group | 1 |
8e7088 Bit & Cutting Edge Gp
| 8E***88 | Bit & Cutting Edge Group | 1 |
8e7322 Blade Gp
| 8E***22 | Blade Group | 1 |
1061062 Blade Gp
| 10***62 | Blade Group | 1 |
8e9145 Blade Gp-Angling
| 8E***45 | Blade Group-Angling | 1 |
1068465 Blade Gp-Angling
| 10***65 | Blade Group-Angling | 1 |
1068463 Bulldozer Ar
| 10***63 | Bulldozer Ar | 1 |
| 10***65 | Blade Group-Angling | 1 |
| 10***68 | C-Frame Group-Power Angling | 1 |
1061066 Bulldozer Ar
| 10***62 | Blade Group | 1 |
| 10***64 | C-Frame Group-Power Angling | 1 |
| 10***66 | Bulldozer Ar | 1 |
1061065 Bulldozer Ar
| 10***62 | Blade Group | 1 |
| 10***64 | C-Frame Group-Power Angling | 1 |
| 10***65 | Bulldozer Ar | 1 |
1068462 Bulldozer Ar
| 10***62 | Bulldozer Ar | 1 |
| 10***65 | Blade Group-Angling | 1 |
| 10***68 | C-Frame Group-Power Angling | 1 |
8e9127 Bulldozer Ar
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
| 7J***23 | Lift Cylinder Group | 2 |
8e9126 Bulldozer Ar
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
| 8E***26 | Bulldozer Ar-Angling | 1 |
| 8E***28 | C-Frame Group | 1 |
8e7304 Bulldozer Ar
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
| 8E***04 | Bulldozer Ar-Pwr Angle & Tilt | 1 |
| 8E***05 | C-Frame Group | 1 |
8e7303 Bulldozer Ar
| 5G***69 | Trunnion Mounting Group; Trunnion Mounting Group | 1 |
| 7B***28 | Drive Screws-2 Required For Installing | 2 |
| 7J***23 | Lift Cylinder Group | 2 |
8e7305 C-Frame Gp
| 8E***05 | C-Frame Group | 1 |
8e9128 C-Frame Gp
| 8E***28 | C-Frame Group | 1 |
1068468 C-Frame Gp-Power Angling
| 10***68 | C-Frame Group-Power Angling | 1 |
1061064 C-Frame Gp-Power Angling
| 10***64 | C-Frame Group-Power Angling | 1 |
6y1467 Case & Covers Gp
| 6Y***67 | Case & Covers Group-Winch | 1 |
6y1906 Gear & Clutch Gp-Part 1 Of 1
| 6Y***06 | Clutch & Gear Group | 1 |
6y2216 Control Gp-Winch
| 6Y***16 | Control Group-Winch | 1 |
5g2636 Control Gp-Towing Winch
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
5g3938 Control Gp-Towing Winch
| 5G***38 | Control Group-Winch; Control Gp-Towing Winch | 1 |
5g4331 Control Gp-Towing Winch
| 5G***31 | Control Group-Winch; Control Gp-Towing Winch | 1 |
6y2048 Control Gp-Winch
| 6Y***48 | Control Group-Winch | 1 |
6y2175 Conversion Ar-Winch
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 5 |
| 3T***80 | Cover As | 1 |
| 5G***38 | Control Group-Winch; Control Gp-Towing Winch | 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 |
6y2217 Conversion Gp-Winch
| 6Y***17 | Conversion Group-Winch | 1 |
6y1959 Conversion Gp-Winch
| 6Y***59 | 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 |
8y5654 Drive Ar-Winch
| 8Y***92 | Drive Group-Power Take-Off | 1 |
| 8Y***51 | Pump & Lines Group | 1 |
| 8Y***54 | Drive Ar-Winch | 1 |
7g9470 Drive Gp-Winch
| 7G***70 | Drive Group-Winch | 1 |
7g6800 Manifold Gp
| 7G***00 | Manifold Group | 1 |
6t2288 Manifold Gp
| 6T***88 | Manifold Group | 1 |
8j3294 Mounting Gp-Ripper
| 8J***94 | Mounting Group-Ripper; Ripper Mounting Group | 1 |
7g9423 Mounting Gp-Winch
| 7G***23 | Mounting Group-Winch | 1 |
8y5642 Pump & Lines Gp
| 8Y***42 | Pump & Lines Group | 1 |
1015692 Pump & Lines Gp
| 10***92 | Pump & Lines Group | 1 |
9j9005 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 Gp
| 8J***34 | Ripper Group; Ripper Group | 1 |
8j5313 Tooth Gp
| 8J***13 | Tooth Group | 1 |
7g6861 Valve Gp
| 7G***61 | Valve Group | 1 |
6t2289 Valve Gp
| 6T***89 | Valve Group | 1 |
6t2287 Valve Gp-Selector & Pressure Control
| 6T***87 | Valve Group-Selector & Press Cont | 1 |
7g6799 Valve Gp-Selector & Pressure Control
| 7G***99 | Valve Group-Selector & Press Cont | 1 |
8e5586 Winch Ar
| 10***92 | Pump & Lines Group | 1 |
| 5G***31 | Control Group-Winch; Control Gp-Towing Winch | 1 |
| 6Y***55 | Winch Ar-Towing | 1 |
8e5585 Winch Ar
| 10***92 | Pump & Lines Group | 1 |
| 5G***36 | Control Group-Winch; Control Gp-Towing Winch | 1 |
| 6Y***55 | Winch Ar-Towing | 1 |
6y2055 Winch Ar-Towing
| 4B***58 | Screw (Identification Plate) Mounting | 4 |
| 6V***27 | Plate, Serial Number; On Left Hand Side Of Winch | 1 |
| 6V***06 | Film (Instruction) | 1 |
Lubrication System
6n3382 Breather Gp
| 6N***82 | Breather Group; Breather Group | 1 |
1n3224 Filter Gp-Oil
| 1N***24 | Filter Group-Oil; Oil Filter Group | 1 |
4p9378 Fumes Disposal Gp
| 4P***78 | Fumes Disposal Group | 1 |
1w0367 Gauge Gp-Oil Level (Dipstick)
| 1W***67 | Gauge Group-Oil Level (Dipstick) | 1 |
6i2826 Gauge Gp-Oil Level (Dipstick)
| 6I***26 | Gauge Group-Oil Level (Dipstick) | 1 |
7w0332 Kit-Pcv Breather
| 7W***32 | Kit-Pcv Breather | 1 |
2w6697 Pump Gp-Oil-Without Housing
| 2W***97 | Pump Group-Oil-Without Housing | 1 |
Operator Station
8y1147 Rops Ar-Open
| 5G***21 | Mounting Group-Rops | 1 |
| 5G***73 | Rops Group | 1 |
| 8Y***47 | Rops Ar-Open | 1 |
8y4741 Cab Gp-Part 3 Of 4
| 8Y***41 | Cab Group | 1 |
8y4741 Cab Gp-Part 4 Of 4
| 8Y***41 | Cab Group | 1 |
8y4741 Cab Gp-Part 1 Of 4
| 8Y***41 | Cab Group | 1 |
8y4741 Cab Gp-Part 2 Of 4
| 8Y***41 | Cab Group | 1 |
8y5036 Dash Gp
| 8Y***36 | Dash Group | 1 |
8y5325 Dash Gp
| 8Y***25 | Dash Group | 1 |
5g0190 Door Gp-Lh-Part 1 Of 2
| 5G***90 | Door Group-Lh | 1 |
5g0190 Door Gp-Lh-Part 2 Of 2
| 5G***90 | Door Group-Lh | 1 |
5g0200 Door Gp-Rh-Part 2 Of 2
| 5G***00 | Door Group-Rh | 1 |
5g0200 Door Gp-Rh-Part 1 Of 2
| 5G***00 | Door Group-Rh | 1 |
8m7892 Gauge As-Ammeter
| 8M***92 | Gauge As-Ammeter; (Ammeter) | 1 |
9x5715 Gauge Gp-Cluster
| 9X***15 | Gauge Group-Cluster | 1 |
8y5633 Guard Gp-Vandalism
| 8Y***33 | Guard Group-Vandalism | 1 |
8y5653 Guard Gp-Vandalism
| 8Y***53 | Guard Group-Vandalism | 1 |
5g0537 Heater Gp-Cab
| 5G***37 | Heater Group-Cab; Cab Heater Group | 1 |
8y1562 Horn Gp-Electric
| 8Y***62 | Horn Group-Electric | 1 |
8y5337 Instrument Gp
| 8Y***37 | Instrument Group | 1 |
8y5037 Instrument Gp
| 8Y***37 | Instrument Group | 1 |
9w1490 Kit-Meter Service
| 8T***01 | Film; (Service Meter) | 1 |
| 9W***90 | Kit-Service Meter | 1 |
9g6762 Meter-Service
| 9G***62 | Meter-Service | 1 |
| 9W***90 | Kit-Service Meter | 1 |
8y5315 Mounting Gp-Cab
| 2N***79 | Machine Screw--Wire Assembly To Panel | 4 |
| 3D***43 | Hinge-Butt | 2 |
| 4B***81 | Screw-Machine | 4 |
5g0521 Mounting Gp-Rops
| 5G***21 | Mounting Group-Rops | 1 |
5g2002 Pressurizer Gp-Cab
| 5G***02 | Pressurizer Group; Cab Pressurizer Group | 1 |
5g2055 Pressurizer Gp-Part 1 Of 3
| 5G***55 | Pressurizer Group-Cab | 1 |
5g2055 Pressurizer Gp-Part 2 Of 3
| 5G***55 | Pressurizer Group-Cab | 1 |
5g2055 Pressurizer Gp-Part 3 Of 3
| 5G***55 | Pressurizer Group-Cab | 1 |
8y5238 Rollover Ar-Enclosed
| 5G***49 | Washer Group-Windshield; Windshield Washer Group | 1 |
| 5G***57 | Wiring Group-Cab; Cab Wiring Group | 1 |
| 5G***37 | Heater Group-Cab; Cab Heater Group | 1 |
8y7509 Rollover Ar
| 5G***49 | Washer Group-Windshield; Windshield Washer Group | 1 |
| 5G***57 | Wiring Group-Cab; Cab Wiring Group | 1 |
| 5G***37 | Heater Group-Cab; Cab Heater Group | 1 |
5g0673 Rops Gp
| 5G***73 | Rops Group | 1 |
8y1177 Seat & Support Gp
| 8Y***77 | Seat & Support Group | 1 |
8y5043 Seat & Support Gp
| 8Y***43 | Seat & Support Group | 1 |
8y4029 Seat Belt Gp
| 8Y***29 | Seat Belt Group | 1 |
6s7596 Seat Gp-Part 2 Of 2
| 6S***96 | Seat Group | 1 |
6s7596 Seat Gp-Part 1 Of 2
| 6S***96 | Seat Group | 1 |
8y5481 Seat Gp
| 8Y***81 | Seat Group | 1 |
8y6713 Seat Gp-Vinyl
| 8Y***13 | Seat Group | 1 |
8y5480 Seat Gp-Adjustable
| 8Y***80 | Seat Group-Adjustable | 1 |
8y6714 Seat Gp-Suspension
| 8Y***14 | Seat Group-Suspension | 1 |
2v7961 Suspension As-Seat
| 2V***61 | Suspension As-Seat | 1 |
8y5482 Suspension Gp-Seat
| 8Y***82 | Suspension Group-Seat | 1 |
9c7161 Suspension Gp-Seat-Part 2 Of 2
| 9C***61 | Suspension Group-Seat | 1 |
9c7161 Suspension Gp-Seat-Part 1 Of 2
| 9C***61 | Suspension Group-Seat | 1 |
9g7641 Switch Gp-Start
| 9G***41 | Switch Group-Start; -Engine, Key-Vims Service | 1 |
5g0049 Washer Gp-Windshield
| 5G***49 | Washer Group-Windshield; Windshield Washer Group | 1 |
5g0974 Wiper Gp
| 5G***74 | Wiper Group; Wiper Group | 1 |
5g0457 Wiring Gp-Cab
| 5G***57 | Wiring Group-Cab; Cab Wiring Group | 1 |
Service Equipment And Supplies
Name Plates & Films-Part 1 Of 2
| 03***91 | Pop - Rivet (To Secure Safety Lable) | 4 |
| 3E***79 | Plate-Eec Certification | 1 |
| 3N***90 | Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine | 1 |
Name Plates & Films-Part 2 Of 2
| 10***64 | Film; (Identification) (Engine Oil Filter) | 1 |
| 1P***07 | Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation | 4 |
| 3E***12 | Film-D5c | 2 |
Steering And Braking System
8y7089 Brake Gp-Steering-Part 1 Of 4
| 8Y***89 | Brake Group-Steering | 1 |
8y7089 Brake Gp-Steering-Part 4 Of 4
| 8Y***89 | Brake Group-Steering | 1 |
8y7089 Brake Gp-Steering-Hand-Part 4 Of 4
| 8Y***89 | Brake Group-Steering | 1 |
8y7089 Brake Gp-Steering-Hand-Part 2 Of 4
| 8Y***89 | Brake Group-Steering | 1 |
8y7089 Brake Gp-Steering-Hand-Part 3 Of 4
| 8Y***89 | Brake Group-Steering | 1 |
8y7058 Brake Gp-Steering-Part 1 Of 3
| 8Y***58 | Brake Group-Steering | 1 |
8y7058 Brake Gp-Steering-Part 3 Of 3
| 8Y***58 | Brake Group-Steering | 1 |
8y7089 Brake Gp-Steering-Part 3 Of 4
| 8Y***89 | Brake Group-Steering | 1 |
8y7089 Brake Gp-Steering-Hand-Part 1 Of 4
| 8Y***89 | Brake Group-Steering | 1 |
8y7089 Brake Gp-Steering-Part 2 Of 4
| 8Y***89 | Brake Group-Steering | 1 |
8y7058 Brake Gp-Steering-Part 2 Of 3
| 8Y***58 | Brake Group-Steering | 1 |
8y5320 Case Gp-Steering Clutch
| 8Y***20 | Case Group-Steering Clutch | 1 |
8y7019 Clutch Gp-Steering
| 8Y***19 | Clutch Group-Steering | 1 |
8y5295 Control Gp-Steering
| 8Y***95 | Control Group-Steering | 1 |
8y5641 Lines Gp-Steering
| 8Y***41 | Lines Group-Steering | 1 |
8y5640 Steering Ar
| 8Y***25 | Dash Group | 1 |
| 8Y***37 | Instrument Group | 1 |
| 8Y***33 | Guard Group-Vandalism | 1 |
8y6735 Valve Gp-Control
| 8Y***35 | Valve Group-Control | 1 |
8y6737 Valve Gp-Control
| 8Y***37 | Valve Group-Control | 1 |
8y6733 Valve Gp-Control
| 8Y***33 | Valve Group-Control | 1 |
8y6734 Valve Gp-Control
| 8Y***34 | Valve Group-Control | 1 |
Torque Converter
8y5632 Lines Gp-Torque Converter Cooler
| 8Y***32 | Lines Group-Torque Conv Cooler | 1 |
1t1929 Torque Converter Gp
| 1T***29 | Torque Converter Group | 1 |
Transmission
8e7614 Case & Parts Gp-Part 1 Of 2
| 8E***14 | Case & Parts Group-Planetary | 1 |
8e7614 Case & Parts Gp-Part 2 Of 2
| 8E***14 | Case & Parts Group-Planetary | 1 |
8y5052 Control Gp-Transmission
| 8Y***52 | Control Group-Transmission | 1 |
8e7734 Control Gp-Transmission Hydraulic
| 8E***34 | Control Group-Transmission Hydraulic | 1 |
9p7244 Covers Gp-Shipping
| 9P***44 | Cover Group-Shipping; (Storage) | 1 |
9p4540 Drive Gp-Pump
| 9P***40 | Drive Group-Pump | 1 |
8y5629 Filler Gp-Power Train Oil
| 8Y***29 | Filler Group-Power Train Oil | 1 |
9p6277 Filter Gp-Transmission
| 9P***77 | Filter Group-Transmission; -Transmission | 1 |
8e7615 Transfer Case & Gear Gp
| 8E***15 | Gear & Case Group-Transfer | 1 |
8y5630 Gear Gp-Bevel
| 8Y***30 | Gear Group-Bevel | 1 |
8y7508 Lines Gp-Power Train Oil
| 8Y***08 | Lines Group-Power Train Oil | 1 |
8y5631 Lines Gp-Power Train Oil
| 8Y***31 | Lines Group-Power Train Oil | 1 |
8e7593 Planetary Gp-Part 1 Of 1
| 8E***93 | Planetary Group | 1 |
8e7652 Pump Gp
| 8E***52 | Pump Group | 1 |
8e7651 Pump Gp-Gear
| 8E***51 | Pump Group-Gear | 1 |
1494234 Segment Gp-Sprocket
| 14***34 | Segment Group-Sprocket; -Sprocket | 1 |
8y6575 Shaft Gp-Drive
| 8Y***75 | Shaft Group-Drive | 1 |
8e7594 Transmission Ar
| 12***98 | Kit-Gasket; (Transmission Oil Filter) | 0 |
| 12***00 | Kit-Gasket; (Output Transfer Gear) | 0 |
| 12***01 | Kit-Gasket; (Hydraulic Control) | 0 |
8e7733 Valve Gp
| 8E***33 | Valve Group | 1 |
8e7735 Valve Gp-Selector & Pressure Control
| 8E***35 | Valve Group-Selector & Press Cont | 1 |
Undercarriage
7g4831 Cap Gp-Track Roller-24 Required
| 7G***31 | Cap Group-Track Roller | 1 |
8y1799 Frame Gp-Track Roller
| 8Y***99 | Frame Group-Track Roller | 1 |
8y7165 Guard Gp-Recoil Mechanism
| 8Y***65 | Guard Group-Recoil Mechanism | 1 |
8y7939 Guard Gp-Recoil
| 8Y***39 | Guard Group-Recoil Mechanism | 1 |
1043626 Guard Gp-Rock
| 10***26 | Guard Group-Rock | 1 |
8y8918 Guard Gp-Track Roller
| 8Y***18 | Guard Group-Track Roller | 1 |
8y5636 Guard Gp-Track Roller
| 8Y***36 | Guard Group-Track Roller | 1 |
8y5049 Idler Gp-Front
| 8Y***49 | Idler Group-Front | 1 |
1v6817 Link As-Track
| 1V***17 | Link As-Track | 1 |
6i9527 Link As-Track-Sealed & Lubricated
| 6I***27 | Link As-Track | 1 |
6k9880 Roller Gp-Track Carrier-2 Required
| 6K***80 | Roller Group-Track Carrier; (Upper) | 1 |
1248240 Roller Gp-Track-Double Flange
| 12***40 | Roller Group-Track-Double Flange | 1 |
1248237 Roller Gp-Track-Single Flange
| 12***37 | Roller Group-Track-Single Flange | 1 |
8e7298 Sprocket Gp-2 Required
| 8E***98 | Sprocket Group | 1 |
8y6529 Support Gp-Undercarriage
| 8Y***29 | Support Group-Undercarriage | 1 |
8y7137 Support Gp-Undercarriage
| 8Y***37 | Support Group-Undercarriage | 1 |
8y5079 Support Gp-Undercarriage
| 8Y***79 | Support Group-Undercarriage | 1 |
8e7501 Track Gp-2 Required
| 1M***08 | Nut-Track | 144 |
| 1V***22 | Shoe-Grouser Track | 36 |
| 1V***23 | Shoe-Track (Master) | 1 |
6i9569 Track Gp-460 Mm (18 In) Grouser Shoe-2 Required
| 1M***08 | Nut-Track | 144 |
| 3T***60 | Shoe-Track | 37 |
| 3T***01 | Bolt-Track Master; (5/8-18x2.63-In) | 2 |
6i9570 Track Gp-510 Mm (20 In) Grouser Shoe-2 Required
| 1M***08 | Nut-Track | 144 |
| 3T***01 | Bolt-Track Master; (5/8-18x2.63-In) | 2 |
| 6I***27 | Link As-Track | 1 |
8e7515 Track Gp-2 Required
| 1M***08 | Nut-Track | 144 |
| 1V***17 | Link As-Track | 1 |
| 3P***74 | Bolt-Track Master | 4 |
6i9571 Track Gp
| 1M***08 | Nut-Track | 144 |
| 2P***63 | Lubricant | 1 |
| 3T***01 | Bolt-Track Master; (5/8-18x2.63-In) | 2 |
8e7529 Track Gp-2 Required
| 1M***08 | Nut-Track | 144 |
| 1V***17 | Link As-Track | 1 |
| 2V***19 | Shoe-Track | 36 |
8e7499 Track Gp-2 Required
| 1M***08 | Nut-Track | 144 |
| 1V***17 | Link As-Track | 1 |
| 3P***74 | Bolt-Track Master | 4 |
1531300 Track Gp
| 15***73 | Link As-Track | 1 |
| 15***00 | Track Group | 1 |
| 1M***08 | Nut-Track | 144 |
6i9572 Track Gp
| 1M***08 | Nut-Track | 144 |
| 2P***63 | Lubricant | 1 |
| 3T***01 | Bolt-Track Master; (5/8-18x2.63-In) | 2 |
6i9568 Track Gp-660 Mm (26 In) Grouser Shoe-2 Required
| 1M***08 | Nut-Track | 144 |
| 3T***01 | Bolt-Track Master; (5/8-18x2.63-In) | 2 |
| 6I***27 | Link As-Track | 1 |
8e7500 Track Gp-2 Required
| 1M***08 | Nut-Track | 144 |
| 1V***15 | Shoe-Grouser Track | 36 |
| 1V***16 | Shoe-Grouser Track | 1 |
7g4837 Track Roller Gp-Double Flange
| 7G***37 | Track Roller Group-Double Flange | 1 |
7g4836 Track Roller Gp-Single Flange
| 7G***36 | Track Roller Group-Single Flange | 1 |
D5C PATLGP serial number reference
The PIN plate on a D5C is riveted to the right-hand side of the main frame rail, near the front of the machine below the operator's platform/fuel tank area, readable from ground level; the engine carries its own separate serial tag on the block, so match both if ordering engine parts. Pre-2001 Cat pattern: a 3-character alphanumeric prefix followed by a sequential unit number (e.g., 8ZS01234) - the prefix identifies the factory build series/configuration breakpoint used in the parts book, not the calendar year by itself, so always check the full PIN against the parts manual breakpoint before ordering.
| Prefix | Identifies | Notes |
|---|---|---|
| 3MK | D5C / D5C LGP, Series I, Powershift, PAT blade option | 3MK00001-UP. Early D5C build series, torque-converter 3-speed powershift, Cat 3204 turbocharged 4-cyl diesel (approx. 67 kW / 90 hp net). Factory parts book groups this range under both the base D5C and the PAT (power-angle-tilt) blade class, spanning standard/XL and LGP undercarriage builds, so PATLGP-configured units fall in this range. Rough years: early 1990s. Confirm exact build against the PIN plate attachment/option code with your dealer. |
| 6PJ | D5C, Series I, Powershift | 6PJ00001-UP. Same generation as 3MK, torque-converter powershift, Cat 3204 engine. A dedicated factory parts manual covers 3MK and 6PJ together as the same D5C powershift range. A direct tie to the PAT+LGP combination specifically was not found in available sources. Confirm with dealer that a given 6PJ-prefix unit is the PATLGP configuration rather than a straight-blade Std/XL build. |
| 5HS | D5C / D5C LGP XL, Series III, Hystat | 5HS00001-UP. Series III dual-path hydrostatic (Hystat) drive, Cat 3046 turbocharged diesel (approx. 75 kW / 100 hp gross, 67 kW / 90 hp net; 5.0 L / 305 cu in - cylinder count varies by source, not stated here). Parts catalog groups D5C and D5C LGP XL Hystat tractors together in this range. PAT blade availability on Hystat-drive units is not separately broken out by prefix in available sources - confirm PATLGP build against the PIN plate with your dealer. |
| 6CS | D5C LGP / D5C LGP XL, Series III, Hystat | 6CS00001-UP (also seen as 6CS1+). Same Series III Hystat family as 5HS/7PS, same Cat 3046 engine and dual-path hydrostatic drive. Parts manuals list this prefix under the D5C LGP Hystat grouping (some catalogs specify LGP XL, others plain LGP - undercarriage width is a build option within the range). PAT-blade tie not separately documented by prefix - confirm PATLGP build with dealer. |
| 7PS | D5C LGP XL, Series III, Hystat | 7PS00001-UP. Same Series III Hystat family as 5HS/6CS, Cat 3046 engine, dual-path hydrostatic drive. A dedicated factory parts manual groups 5HS, 6CS and 7PS together under the D5C LGP XL Series III Hystat range. Confirm PAT+LGP combination against PIN plate with dealer. |
| 8ZS | D5C / D5C LGP XL, Series III, direct-drive Powershift | 8ZS00001-UP (also seen as 8ZS1+). Series III direct-drive powershift build (non-Hystat), grouped with D5C and D5C LGP XL in factory parts documentation; engine generation consistent with other Series III direct-drive prefixes (Cat 3046). PAT-blade tie not separately confirmed by prefix in available sources - confirm PATLGP configuration with dealer. |
| 6ZL | D5C LGP, Series III, direct-drive Powershift | 6ZL00001-UP. Series III direct-drive (non-Hystat) powershift, Cat 3046 engine. Dealer reference and factory service documentation group this prefix specifically under D5C LGP, alongside 9DL. PAT blade tie for this exact range not separately documented - confirm PATLGP build with dealer. |
| 9DL | D5C LGP, Series III, direct-drive Powershift | 9DL00001-UP. Same Series III direct-drive family as 6ZL, Cat 3046 engine, grouped with D5C LGP in dealer reference listings. PAT blade tie for this exact range not separately documented - confirm PATLGP build with dealer. |
Frequently asked questions
What engine does the Caterpillar D5C PATLGP have?
It depends on series. Early production (Series I/II, roughly 1991-93) carries the Cat 3204 turbocharged four-cylinder diesel, rated near 67 kW (90 hp) net. Series III production switched to the Cat 3046/3046T turbocharged diesel, rated around 74.6 kW (100 hp) gross and 67 kW (90 hp) net. Confirm the fitted engine against the PIN/serial prefix before ordering parts.
What is the operating weight of a D5C PATLGP?
About 8,972 kg (19,780 lb) in the factory PAT-blade-plus-LGP-undercarriage configuration. A standard-gauge D5C without the wide LGP undercarriage and PAT blade group runs lighter, around 8,428-8,487 kg (18,580-18,711 lb). The PATLGP is always the heavier build because of the wider shoes and hydraulic blade group.
What replaced the Caterpillar D5C?
The D5G and D5G LGP succeeded the D5C line at the end of its production run, around 2001-2002. The D5C itself had succeeded the earlier D5B. Parts and service literature generally don't cross over to the D5G, so identify the exact series and engine on hand before ordering.
What D5C PATLGP owners discuss
What engine actually powers a D5C PATLGP, and does it vary by series?
Engine depends on series. Early D5C PATLGP production (Series I/II) used the Caterpillar 3204, a turbocharged four-cylinder rated around 67 kW (90 hp net). Series III production moved to the Caterpillar 3046/3046T, rated around 74.6 kW (100 hp) gross and 67 kW (90 hp) net. Confirm which engine is actually fitted before ordering parts or matching service literature; the two have little in common beyond both carrying the D5C nameplate. Owners flag the 3204's rod bearings, particularly the number 3 journal, as a weak point on the turbocharged version when run hard or allowed to overheat, and a spun bearing can lock the crank and end the engine. The naturally aspirated 3204 used in lighter machines has a better reputation than this turbocharged application. The Series III 3046/3046T has a cleaner track record.
Why does the Hystat drive creep or shake at neutral, and is it urgent?
Series III PATLGP machines with Hystat drive use two independent closed hydrostatic loops, one per track, each with its own variable-displacement pump and drive motor. Creep at neutral or a shake/shudder with the joystick centered points to wear or contamination inside a pump or motor, not a simple linkage adjustment. Common causes are worn pump or motor internals bleeding pressure across neutral, a joystick that has lost its centering calibration, or trapped air/contamination from a stretched fluid change interval. Diagnosis is a warm hydraulic pressure check at each drive pump, left and right, followed by inspection of the port plates if a pump reads out of spec. Because creep at neutral means the machine can move without operator input, have your dealer verify hystat pump pressures and joystick calibration before the machine goes back to work.
What's the realistic wear pattern on the LGP undercarriage, and how do you judge remaining life?
The LGP undercarriage runs wider, lower-pressure shoes than a standard-gauge D5C, and wear shows up differently: on machines that spend most of their life pushing rather than traveling on hard ground, bushing and pin wear tends to lead sprocket wear. Judge remaining life by measuring chain pitch across several links after taking up slack (back the machine against the sprocket to remove play), and compare against the factory new-versus-full-wear figures for the LGP track group specifically, not the standard-gauge chart. Also check idler travel remaining, sprocket tooth profile, and rail height at the center of the link. Idler and roller seal weeping is a common leak point on high-hour LGP frames and is worth a close look during any inspection.
The PAT blade won't hold its angle or tilt position under load. What's usually wrong?
Owners point to angle/tilt cylinder seals first. Worn seals let a cylinder bleed down internally, so the blade creeps out of commanded position under load even though the valve is holding. Angle and tilt each run on cylinders plumbed to work opposite each other, so a leak on either side shows up as drift on that axis. If new cylinder seals don't cure the drift, the next suspect is the angle valve body; a stuck or worn valve spool, often from debris ingestion, can mimic a cylinder seal leak. Because a blade that won't hold position can move unexpectedly under load, have your dealer verify cylinder and valve condition before returning the machine to grading work.
What electrical issues show up on the Hystat control system?
The Hystat speed-range selector on the joystick pod uses membrane-style switches to toggle between low and high travel range. These switches and their wiring wear with use on higher-hour machines and are a common source of a range that won't shift, or shifts on its own. The range switches operate small solenoids that meter pilot oil to the pump swashplate, so a wiring or switch fault can look like a hydraulic problem until the electrical side is ruled out first. This is a simple on/off circuit, not a full electronic control system, so diagnosis is mostly continuity and solenoid function checks rather than a code reader.
Is hydraulic oil overheating a known complaint, separate from engine overheating?
Yes, and owners treat it as separate from engine overheating. The hydraulic oil cooler sits in the same shroud as the radiator, mounted ahead of or behind it depending on build. If coolant temperature stays normal but hydraulic temperature climbs during heavy grading or pushing, check the hydraulic cooler core first: debris packed between the radiator and cooler cores, bent fins, or gaps in the shroud and ducting that let air bypass the cores instead of pulling through them. Pulling the radiator/cooler package for a thorough wash on both sides of each core, then confirming the ducting seals properly, resolves most reported cases without further teardown.
What should I check before buying a used D5C PATLGP?
Confirm which engine and drive combination is actually fitted: 3204 turbo four-cylinder powershift on early Series I/II, or 3046/3046T on Series III in either powershift or Hystat form. Parts, service history, and known failure points differ by combination. On a Hystat machine, pull an oil sample and run a warm hydraulic pressure check at both drive pumps; a tired pump or motor on a high-hour hystat machine is a real repair cost. Walk the undercarriage and measure chain wear instead of eyeballing it, since the wider, heavier LGP shoes wear differently than standard gauge. Cycle the PAT blade fully through angle and tilt and watch for creep with the valve held in the hold position, a sign of tired cylinder seals. Check for oil residue at the hydraulic cooler core and watch coolant and hydraulic temperatures separately during a warm-up test drive. Have your dealer verify hystat pump condition and PAT cylinder/valve condition before agreeing on a final price.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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