Caterpillarengine - machine(no series)
Caterpillar 3176
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 3176 covered here is a 10.3 liter (629 cu in), turbocharged and aftercooled inline-six diesel using electronic unit injection under Caterpillar's PEEC control, built for Caterpillar's own Challenger rubber-tracked agricultural tractors ahead of the later ADEM-controlled 3176B/3176C generation. This parts book covers the engine as fitted to the Challenger 75, 75C, and 85C, rated from roughly 325 to 355 gross hp (242 to 265 kW) depending on model, with operating weights of about 33,300 to 34,400 lb (15.1 to 15.6 t). Production of these 3176-powered Challengers ran from 1991 through 1996. All of them use a 10-speed full-powershift transmission, hydrostatic differential steering (not articulated or wheel steer) driving Caterpillar's rubber-belted track undercarriage, a rear drawbar/3-point hitch with PTO, and a pressurized cab. Within Caterpillar's own tractor line the 3176 replaced the smaller 10.5 liter 3306 diesel used in the earlier Challenger 65/65B/65C/65D, and Caterpillar's larger 85D and 95E later stepped up to the bigger-displacement 3196 engine.
Across this run Caterpillar tuned the same 10.3 liter block to different power points (325 hp for 75/75C, 355 hp for 85C), mainly through fuel delivery, turbo, and aftercooling calibration rather than a displacement change; weight and track width grew with model to match pull power. Caterpillar exited production farm tractors in 2002, selling the Challenger tractor design, assembly, and marketing to AGCO, which kept the Challenger name going on its own later MT-series tractors; no in-house Cat successor continues this exact chassis and engine combination. That closed production run is exactly why this engine still matters in the parts market: these Challengers are decades out of production, dealer stock has thinned hard, and rebuilders and used-parts suppliers are the practical source for injectors, turbochargers, wet-disc brake components, and the matching final-drive and differential-steering hardware sized to this chassis.
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 3176 specifications
Engine
| Engine model | Cat 3176, inline-6, four-stroke-cycle diesel, turbocharged with air-to-air aftercooling (ATAAC). Same base engine designation carries through the Challenger 75/75C/85C track-tractor line and contemporary on-highway truck applications of the same era. |
| Displacement | 10.3 L (629 cu in) |
| Bore x stroke | 125 mm x 140 mm (4.92 in x 5.51 in) |
| Cylinders / valves | 6 cylinders inline, 4 valves per cylinder, direct injection |
| Compression ratio | Approx. 15.5:1 to 16:1 - published figures vary slightly by source |
| Rated gross power - Challenger 75 / 75C tractor | 325 hp (242 kW) at 2100 rpm |
| Rated gross power - Challenger 85C tractor | 355 hp (265 kW) at 2100 rpm |
| Rated gross power - on-highway truck use | 187-242 kW (250-325 hp) at 1700-2100 rpm at introduction; higher door ratings up to roughly 350 hp were fielded in later model years - varies by chassis and gearing |
| Emissions tier | Predates formal EPA nonroad Tier certification (tractor production ran 1991-1996); on-highway versions were certified to the heavy-duty diesel standards in force for their model year. No Tier rating applies to this generation. |
Weights
| Operating weight - Challenger 75 (1991-92) | Approx. 15,590 kg (34,370 lb) |
| Operating weight - Challenger 75C (1993-96) | Approx. 15,110 kg (33,305 lb) |
| Operating weight - Challenger 85C (1994-96) | Approx. 15,260 kg (33,645 lb) |
| Ground pressure | Not published for this generation. The rubber-belted undercarriage was marketed for lower ground pressure than a steel-tracked crawler of comparable weight, but no figure is documented. |
Dimensions
| Transport length | Approx. 5.89 m (232 in), on the chassis shared by the 75C and 85C |
| Transport width | Approx. 3.05 m (120 in) |
| Transport height | Approx. 3.25-3.66 m (128-144 in) - published figures vary, likely reflecting cab/ROPS option differences |
| Wheelbase | Approx. 2.69-2.72 m (106-107 in) |
| Track width | 25 in (64 cm) or 30 in (76 cm) rubber belt options; a 36 in (91 cm) belt was offered later in the family |
| Ground clearance | Not consistently published for this generation - verify with dealer literature for your specific unit |
Performance
| Drawbar power (Challenger 75) | Claimed approx. 260 hp (194 kW); test-measured approx. 251 hp (187 kW) |
| PTO power (Challenger 75) | Claimed approx. 281 hp (210 kW); test-measured approx. 302 hp (225 kW) |
| PTO speed | 1000 rpm, rear PTO |
| Transmission | 10-speed full powershift (10 forward / 2 reverse) |
| Steering | Hydrostatic differential steering, dual rubber-belt crawler drive. No conventional gradeability rating is published for this type of undercarriage. |
| Travel speed | Not consistently documented across surviving spec sheets for this generation. The rubber Mobil-trac undercarriage was marketed for materially higher road-transport speed than the steel-tracked crawlers it replaced; verify an exact top speed with dealer literature for your specific unit. |
Service capacities (summary)
| Fuel tank | Approx. 791-833 L (209-220 gal), varies by model |
| Cooling system | Approx. 42-57 L (11-15 gal) as installed in the tractor chassis |
| Hydraulic system | Approx. 110 L (29 gal) reservoir; system pressure approx. 176 bar (2550 psi); pump flow approx. 102 L/min (27 gpm), with 132 L/min (35 gpm) optional. Documented for the C-series; likely similar on the base 75/85 but not separately confirmed. |
| Engine oil (crankcase refill) | Approx. 26-31 L (28-33 qt), documented across 3176 applications generally - verify the exact figure for this tractor configuration |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
3176 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase, including oil filter | 28 L (7.5 US gal) full oil-and-filter service fill. A broader range of about 26-31 L (28-33 qt) also shows up across sources depending on pan and filter configuration; treat that as an approximate service range rather than a fixed number. | Cat DEO (Diesel Engine Oil), or an equivalent oil meeting Cat's engine oil spec for this engine generation (API CG-4/CF-4 class, Cat ECF-1). Grade by climate per the oil viscosity chart: SAE 15W-40 for warm and general-duty service (down to about -15C/5F ambient); SAE 10W-30 for cold-weather service (down to about -20C/-4F ambient). Check ambient temperature at the coldest expected start before selecting grade. |
| Cooling system | 45 L (12 US gal) total system fill (engine jacket plus radiator). | Cat Extended Life Coolant (ELC) is the factory-recommended fill: a glycol-based, organic corrosion-inhibitor coolant that does not need supplemental coolant additive top-off through its service life. If a conventional (non-ELC) glycol coolant is used instead, mix to a 50/50 water-glycol ratio (do not exceed 60% glycol) and maintain Supplemental Coolant Additive (SCA) levels on schedule to control liner cavitation and system corrosion. |
| Grease (accessory-drive fittings) | No bulk grease reservoir on the engine. Lubrication is at individual grease fittings only (fan hub/idler pulley and similar accessory-drive bearings) - spec only, no fill volume. | Cat Multipurpose Grease, NLGI Grade 2, or an equivalent multipurpose grease meeting NLGI GC-LB performance, applied at scheduled service intervals. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 3176 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 6,000 h |
|
Servicing the 3176 beyond the schedule
Predictive Maintenance & Fluid Analysis
Run S·O·S oil sampling on engine oil at every scheduled change to catch unit-injector plunger wear and turbocharger bearing wear early on this EUI-fed 10.3 liter block. Sample transmission/hydrostatic drive oil and both final-drive/differential-steering sumps in parallel; wear-metal trends there flag powershift clutch pack and steering planetary wear before a track slows or drags. Track coolant sample trend for corrosion-inhibitor depletion, since these PEEC-era cooling systems predate factory extended-life coolant fill.
Corrective & Common Repairs
Cold, wet conditions can push the low-mounted boost sensor on this PEEC-controlled 3176 into false low-boost mode, cutting power until the sensor hose dries out; check routing and drainage first on any power complaint. Expect unit-injector leakage and turbocharger seal wear as common top-end repairs at higher hours. On the Challenger chassis, wet-disc brake and steering-clutch drag, and drawbar/3-point hitch pin wear, are the recurring driveline complaints behind uneven steering or hitch play.
Overhaul & Rebuild Points
Top-end overhaul on this 10.3 liter inline-six centers on injector height/timing reset, valve lash adjustment, and cylinder liner and turbocharger condition once oil sampling or blow-by trends turn. On the driveline, plan powershift clutch pack and differential-steering planetary rebuilds together, since both sumps see the same duty cycle. Undercarriage overhaul means replacing worn rubber track bands, rollers, and idler wheels as a set to keep track tension and tracking even side to side.
Seasonal & Environment Servicing
Before cold starts, verify boost sensor hose routing and drainage to prevent PEEC low-boost lockout, and use a block heater and cold-weather fuel additive for this EUI diesel's warm-up needs. Re-check rubber track sag each season; the tracks tighten in heat and loosen in cold, so tension set in summer will be wrong by winter. In dusty tillage work, clean the radiator and air intake screens more often and inspect final-drive seals for abrasive dirt ingress.
3176 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 8C-8902 | Film | Lubrication service | Check fitment → |
| 7X-0293 | Bolt-For Transmission Filter Return Line | Scheduled service item | Check fitment → |
| 9X-2205 | Filter Kit (Includes Screw, Filter Assem., Gaskets & Valve) | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
3176 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Flash Code 55 | No active diagnostic codes stored - the electronic system currently reads clean. | Not a fault by itself. If the engine still won't start or run correctly while showing Code 55, the problem sits outside the monitored electronic circuits. | Don't chase this code. Check fuel supply, the fuel shutoff solenoid and its wiring, and basic cranking/starting fundamentals instead. |
| CID 100 (Flash Code 24) | Engine oil pressure sensor circuit fault - signal outside the expected voltage range. | Corroded or loose sensor connector, a failed oil pressure sensor, or chafed/open wiring between the sensor and the control module. | Inspect the sensor connector for corrosion, check sensor output against a known-good reading, and verify wiring continuity before replacing the sensor. |
| CID 100 event (Flash Code 46) | Actual low engine oil pressure detected, as distinct from a sensor circuit fault. | Low oil level, a worn oil pump or bearings, a clogged oil filter, or occasionally a failing sensor giving a false-low reading. | Shut down and check oil level and filter condition first. Confirm the reading with a mechanical gauge before any teardown work. |
| CID 190 (Flash Code 34) | Engine speed/timing signal fault - the control module isn't receiving a valid signal from the primary speed/timing sensor. | A failed or misadjusted speed/timing sensor, damaged wiring or connector, or sensor air gap out of specification. Can cause a no-start. | Check the sensor's air gap and mounting, inspect wiring and the connector, and test sensor resistance against spec before replacing it. |
| CID 91 (Flash Code 21) | Throttle position sensor signal out of range - duty cycle reads too high or too low for several seconds. | Throttle linkage binding, sensor misadjustment, or a failing throttle position sensor. | Check the throttle linkage for binding, verify sensor adjustment and signal with a diagnostic tool, and replace the sensor if it's out of range. |
| CID 110 (Flash Code 61) | High engine coolant temperature warning. | Low coolant level, a debris-blocked radiator or screens, a fan clutch or belt fault, or a stuck thermostat. | Check coolant level and top off, clear debris from the radiator and screens, verify fan drive operation, and check the thermostat if overheating continues. |
| CID 102 | Boost/intake manifold pressure sensor circuit fault - signal above the normal range. | A failed boost pressure sensor or transducer, a corroded connector, or an open/shorted signal wire. | Inspect the sensor connector, test sensor output, and replace the sensor/transducer if it's out of range, then verify with a diagnostic tool. |
| CID 108 | Barometric pressure sensor circuit fault - signal above the normal range, often logged alongside a boost pressure sensor fault since both share the same pressure transducer module. | The same transducer or wiring fault as the boost pressure circuit; connector corrosion is the usual culprit. | Check the shared connector and wiring first, then test or replace the pressure sensor/transducer module. |
| CID 168 | Battery/system voltage out of the normal operating range, too high or too low. | A weak or discharged battery, a poor ground or battery cable connection, or a charging system fault - common on tractors that sit idle between seasons. | Check battery state of charge and terminal connections first, then test charging system output before suspecting the control module. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
3176 attachments & work tools
Three-Point Hitch
A rear three-point hitch was a factory option on this track-tractor family, not a standard fitting; a number of units were built and sold drawbar-only. Where fitted, linkage size falls in the heavy-duty Category III class matching this power range, but no single published lift-capacity figure applies across 75/75C/85C - lift rating varies by hitch supplier and build configuration.
PTO (Power Take-Off)
Rear PTO, where ordered, is a 1000 rpm-type shaft; PTO was likewise a build option, and some tractors shipped without one. Independent dynamometer testing put PTO output at roughly 280-305 hp (209-227 kW) on 75C and 85C engines, consistent with the 3176's tillage-duty rating.
Drawbar
Drawbar is the standard hitch point, fitted even on units built without a three-point hitch or PTO. Independent drawbar testing recorded roughly 248-272 hp (185-203 kW) on 75C and 85C engines. Field use commonly favors a swinging clevis-style drawbar over a fixed bar, which reduces implement jackknifing when towing wide tools on sidehill ground.
Compatible Implements
Documented field use centers on heavy pull-type primary tillage sized to this horsepower class - chisel plows, disk rippers/subsoilers, and heavy field cultivators - hitched off the drawbar. Drawbar hitch kits are also sold to fit this Cat Challenger track-tractor family for towing pull-type earthmoving pan scrapers in land-leveling work, including versions for tractors built without a factory three-point hitch. Three-point-mounted implements need the optional hitch and are not usable on drawbar-only-configured units.
Factory Configuration Options
Caterpillar built this track-tractor family in both hitch-and-PTO-equipped and drawbar-only variants; dealer parts and hitch-fitment records for this Cat Challenger track-tractor range confirm both configurations existed side by side. Confirm three-point hitch and PTO presence on a specific serial before assuming either is fitted.
All 3176 assemblies by section
Every catalogued assembly group for the Caterpillar 3176. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
7e7921 Aftercooler Gp-Air
| 7E***21 | Aftercooler Group-Air | 1 |
7e7929 Air Cleaner Gp
| 7E***29 | Air Cleaner Group | 1 |
4p2881 Cartridge Gp-Turbocharger*R
| 4P***81 | Cartridge Group-Turbocharger | 1 |
4p2880 Cartridge Gp-Turbocharger*R
| 4P***80 | Cartridge Group-Turbocharger | 1 |
1054900 Duct Gp-Air
| 10***00 | Duct Group-Air | 1 |
7e7920 Dust Ejector Gp
| 7E***20 | Dust Ejector Group | 1 |
7e7919 Extension Gp-Air Cleaner
| 7E***19 | Extension Group-Air Cleaner | 1 |
7e7917 Extension Gp-Exhaust
| 7E***17 | Extension Group-Exhaust | 1 |
4e1488 Indicator Gp (Filter Change)
| 4E***88 | Indicator Group-Filter Change | 1 |
7e8424 Lines Gp-Air (Aftercooler)
| 7E***24 | Lines Group-Air | 1 |
7e7918 Lines Gp-Air
| 7E***18 | Lines Group-Air | 1 |
7c1757 Manifold Gp-Exhaust
| 7C***57 | Manifold Group-Exhaust | 1 |
7e7886 Manifold Gp-Exhaust
| 7E***86 | Manifold Group-Exhaust | 1 |
7c1758 Manifold Gp-Inlet
| 7C***58 | Manifold Group-Inlet | 1 |
4p9427 Manifold Gp-Inlet
| 4P***27 | Manifold Group-Inlet | 1 |
7e7916 Muffler Gp
| 7E***16 | Muffler Group | 1 |
4e6427 Shield Gp-Exhaust
| 4E***27 | Shield Group-Exhaust | 1 |
4p4018 Turbocharger Gp
| 4P***18 | Turbocharger Group | 1 |
4p0624 Turbocharger Gp
| 4P***24 | Turbocharger Group | 1 |
4p2870 Turbocharger Gp*R
| 4P***70 | Turbocharger Group | 1 |
4p4019 Turbocharger Gp
| 4P***19 | Turbocharger Group | 1 |
Basic Engine
6i1533 Camshaft Gp-Single
| 6I***33 | Camshaft Group | 1 |
7e8425 Camshaft Gp-Single
| 7E***25 | Camshaft Group | 1 |
7c1741 Cover Gp-Air Compressor
| 7C***41 | Cover Group-Air Compressor | 1 |
4p9916 Cover Gp-Air Compressor
| 4P***16 | Cover Group-Air Compressor | 1 |
7c1740 Cover Gp-Hydraulic Pump Drive
| 7C***40 | Cover Group-Hydraulic Pump Drive | 1 |
9y4057 Cover Gp-Valve Mechanism
| 9Y***57 | Cover Group-Valve Mechanism | 1 |
9y4054 Crankshaft Gp
| 9Y***54 | Crankshaft Group | 1 |
6i1006 Cylinder Block As
| 6I***06 | Cylinder Block As | 1 |
4p9140 Cylinder Block Gp
| 4P***40 | Cylinder Block Group | 1 |
7c8568 Cylinder Block Gp
| 7C***68 | Cylinder Block Group | 1 |
4p7269 Cylinder Head As*R
| 4P***69 | Cylinder Head As | 1 |
1012066 Cylinder Head As
| 10***66 | Cylinder Head As | 1 |
1011537 Cylinder Head As*R
| 10***37 | Cylinder Head As | 1 |
4p7268 Cylinder Head Gp*R
| 4P***68 | Cylinder Head Group | 1 |
1012067 Cylinder Head Gp*R
| 10***67 | Cylinder Head Group | 1 |
7c8575 Cylinder Head Gp
| 7C***75 | Cylinder Head Group | 1 |
7e7882 Damper & Pulley Gp
| 7E***82 | Damper & Pulley Group | 1 |
9y3661 Drive Gp-Accessory
| 9Y***61 | Drive Group-Accessory | 1 |
7e7679 Drive Gp-Fan
| 7E***79 | Drive Group-Fan | 1 |
7e7784 Flywheel Gp
| 7E***84 | Flywheel Group | 1 |
7e8429 Gear Gp-Front
| 7E***29 | Gear Group-Front | 1 |
7c1749 Housing Gp-Flywheel
| 7C***49 | Housing Group-Flywheel | 1 |
9y3594 Housing Gp-Front
| 9Y***94 | Housing Group-Front | 1 |
1025838 Housing Gp-Front
| 10***38 | Housing Group-Front | 1 |
4p5535 Kit-Bearing Repair
| 4P***04 | Bearing-Sleeve 38.5 mm Offset Hole | 1 |
| 4P***05 | Bearing-Sleeve 30 mm Wide | 4 |
| 4P***06 | Bearing-Sleeve 38.5 mm Center Hole | 1 |
7c1795 Lifter Gp
| 7C***95 | Lifter Group-Valve | 1 |
7c8271 Lifting Gp
| 7C***71 | Lifting Group-Engine | 1 |
7e7675 Mounting Gp-Engine
| 7E***75 | Mounting Group-Engine | 1 |
7e7678 Mounting Gp-Fan Drive
| 7E***78 | Mounting Group-Fan Drive | 1 |
9y4070 Pan Gp-Oil
| 9Y***70 | Pan Group-Oil | 1 |
6i1175 Pan Gp-Oil
| 6I***75 | Pan Group-Oil | 1 |
9y0213 Piston & Rod Gp-6 Required
| 9Y***13 | Piston & Rod Group | 1 |
7e4844 Plug Gp
| 7E***44 | Plug Group-Cylinder Block | 1 |
7e7914 Pulley Gp
| 7E***14 | Pulley Group | 1 |
1004384 Pulley Gp-Auxiliary Drive
| 10***84 | Pulley Group-Auxiliary Drive | 1 |
7e9583 Pulley Gp-Fan Drive
| 7E***83 | Pulley Group-Fan Drive | 1 |
7w7818 Rocker Arm Gp-Valve
| 7W***18 | Rocker Arm Group | 1 |
7c8572 Seal Gp-Crankshaft
| 7C***72 | Seal Group-Crankshaft | 1 |
7e7673 Support Gp-Engine (Front)
| 7E***73 | Support Group-Engine; -Front | 1 |
7c1738 Valve Mechanism Gp
| 7C***38 | Valve Mechanism Group | 1 |
Braking System
8r0753 Brake Gp-Hydraulic Caliper Service
| 8R***53 | Brake Group-Hydraulic Caliper Service | 1 |
3w5071 Brake Gp-Parking
| 3W***71 | Brake Group-Parking | 1 |
3w5068 Brake Gp-Service
| 3W***68 | Brake Group-Service | 1 |
9u4794 Cylinder Gp-Master
| 9U***94 | Cylinder Group-Master | 1 |
4e1028 Cylinder Gp-Master
| 4E***28 | Cylinder Group-Master | 1 |
3w5207 Lines Gp-Brake-Part 2 Of 3
| 3W***07 | Lines Group-Service Brake | 1 |
3w5207 Lines Gp-Brake-Part 1 Of 3
| 3W***07 | Lines Group-Service Brake | 1 |
4e8509 Lines Gp-Service Brake-Part 2 Of 2
| 4E***09 | Lines Group-Service Brake | 1 |
3w5207 Lines Gp-Brake-Part 3 Of 3
| 3W***07 | Lines Group-Service Brake | 1 |
4e8509 Lines Gp-Service Brake-Part 1 Of 2
| 4E***09 | Lines Group-Service Brake | 1 |
Cooling System
7w5058 Fan Gp-Suction
| 7W***58 | Fan Group-Suction | 1 |
4p1498 Coolant Conditioner Gp
| 4P***98 | Coolant Conditioner Group | 1 |
7e4054 Coolant Conditioner Gp
| 7E***54 | Coolant Conditioner Group | 1 |
8r9787 Cooler Ar-Implement Hydraulic
| 4E***74 | Pump & Mounting Group | 1 |
| 7E***31 | Cooler Group-Oil | 1 |
| 8R***61 | Lines Group-Oil Cooler | 1 |
9u4287 Cooler Ar-Implement Hydraulic
| 4E***74 | Pump & Mounting Group | 0 |
| 4L***54 | Capscrew; (3/8-16x21 In) (Gd8) (Hex Hd) (4-Roller) | 0 |
| 4S***62 | Clip 25.4mm(1 In.)Width | 0 |
4p3755 Cooler Gp-Engine Oil
| 4P***55 | Cooler Group-Engine Oil | 1 |
7e4131 Cooler Gp-Oil
| 7E***31 | Cooler Group-Oil | 1 |
7e4132 Cooler Gp-Oil (Power Steering)
| 7E***32 | Cooler Group-Oil | 1 |
4p3757 Cooler Gp-Transmission Oil
| 4P***57 | Cooler Group-Transmission Oil | 1 |
6n9548 Drive Gp-Pump
| 6N***48 | Drive Group-Pump | 1 |
4n3586 Heater Gp-Jacket Water
| 4N***86 | Heater Group-Jacket Water; (120v) | 1 |
1w1361 Heater Gp-Jacket Water
| 1W***61 | Heater Group-Jacket Water | 1 |
4p9756 Housing & Regulator Gp
| 4P***56 | Housing & Regulator Group | 1 |
7e7883 Regulator Gp
| 7E***83 | Housing & Regulator Group | 1 |
7e7885 Lines Gp-Coolant
| 7E***85 | Lines Group-Coolant | 1 |
8r7861 Lines Gp-Oil Cooler
| 8R***61 | Lines Group-Oil Cooler | 1 |
9y4162 Lines Gp-Water (Pump Inlet)
| 9Y***62 | Lines Group-Water | 1 |
4p3756 Lines Gp-Water
| 4P***56 | Lines Group-Water | 1 |
4p9387 Lines Gp-Water
| 4P***87 | Lines Group-Water | 1 |
4e0174 Pump & Mounting Gp
| 1L***68 | Ring-Retaining | 1 |
| 2D***34 | Bolt-Socket Head; (3/8-16x1-In) | 8 |
| 4E***74 | Pump & Mounting Group | 1 |
9y4161 Pump Gp-Water
| 9Y***61 | Pump Group-Water | 1 |
7e8554 Pump Gp-Water*R
| 7E***54 | Pump Group-Water | 1 |
1025844 Pump Gp-Water
| 10***44 | Pump Group-Water | 1 |
7e7330 Radiator Gp (Folded Core)
| 7E***30 | Radiator Group | 1 |
7e7335 Radiator Gp (Folded Core)
| 7E***35 | Radiator Group | 1 |
Differential Steering System
8y0168 Control Gp-Steering-Part 1 Of 2
| 8Y***68 | Control Group-Steering | 1 |
5g8820 Control Gp-Steering-Part 3 Of 3
| 5G***20 | Control Group-Steering | 1 |
5g8820 Control Gp-Steering-Part 2 Of 3
| 5G***20 | Control Group-Steering | 1 |
5g8820 Control Gp-Steering-Part 1 Of 3
| 5G***20 | Control Group-Steering | 1 |
8y0168 Control Gp-Steering-Part 2 Of 2
| 8Y***68 | Control Group-Steering | 1 |
4e8506 Final Drive Gp
| 4E***06 | Final Drive Group | 1 |
3w5067 Final Drive Gp
| 3W***67 | Final Drive Group | 1 |
3w5087 Lines Gp-Pump-Part 2 Of 2
| 3W***87 | Lines Group-Pump | 1 |
4e8519 Lines Gp-Pump-Part 1 Of 2
| 4E***19 | Lines Group-Pump | 1 |
4e8519 Lines Gp-Pump-Part 2 Of 2
| 4E***19 | Lines Group-Pump | 1 |
3w5087 Lines Gp-Pump-Part 1 Of 2
| 3W***87 | Lines Group-Pump | 1 |
3w5086 Motor & Mounting Gp
| 3W***86 | Motor & Mounting Group | 1 |
| 4K***75 | Bolt-12 Point Head 38.1mm (1.501in) Long | 4 |
| 4S***98 | Seal-O-Ring | 1 |
9t5426 Motor Gp-Piston*X
| 9T***26 | Motor Group-Piston; Motor Gp-Piston | 1 |
6e4345 Pump Gp-Gear
| 6E***45 | Pump Group-Gear | 1 |
6e1288 Pump Gp-Gear
| 6E***88 | Pump Group-Gear | 1 |
9t5751 Rotating Gp-Motor
| 9T***51 | Rotating Group-Motor | 1 |
9t4908 Rotating Gp-Pump
| 9T***08 | Rotating Group-Pump | 1 |
9t1823 Valve & Mounting Gp
| 9T***23 | Valve & Mounting Group | 1 |
9t5533 Valve Gp-Pilot
| 9T***33 | Valve Group-Pilot | 1 |
9t8435 Valve Gp-Pilot
| 9T***35 | Valve Group-Pilot | 1 |
9t4880 Valve Gp-Pilot
| 9T***80 | Valve Group-Pilot | 1 |
9t4904 Valve Gp-Pressure Control
| 9T***04 | Valve Group-Pressure Control | 1 |
1082146 Guard Gp
| 10***21 | Guard As-Front-Rh | 1 |
| 10***22 | Guard As-Front-Lh | 1 |
| 10***23 | Guard As-Rear-Rh | 1 |
9u0963 Guard Gp-Final Drive
| 9U***63 | Guard Group-Final Drive | 1 |
| 9U***64 | Guard-Lh | 2 |
| 9U***65 | Guard-Rh | 2 |
6e3340 Head Gp-Pump
| 6E***40 | Head Group-Pump | 1 |
8r7907 Lines Gp-Steering-Part 2 Of 3
| 8R***07 | Lines Group-Steering | 1 |
8r7907 Lines Gp-Steering-Part 1 Of 3
| 8R***07 | Lines Group-Steering | 1 |
8r7907 Lines Gp-Steering-Part 3 Of 3
| 8R***07 | Lines Group-Steering | 1 |
8e7805 Planetary Gp-Differential Steering-Part 2 Of 3
| 8E***05 | Planetary Group-Differential Ster | 1 |
7t7927 Planetary Gp-Differential Steering-Part 2 Of 3
| 7T***27 | Planetary Group-Differential Ster | 1 |
7t7927 Planetary Gp-Differential Steering-Part 3 Of 3
| 7T***27 | Planetary Group-Differential Ster | 1 |
7t7927 Planetary Gp-Differential Steering-Part 1 Of 3
| 7T***27 | Planetary Group-Differential Ster | 1 |
8e7805 Planetary Gp-Differential Steering-Part 3 Of 3
| 8E***05 | Planetary Group-Differential Ster | 1 |
8e7805 Planetary Gp-Differential Steering-Part 1 Of 3
| 8E***05 | Planetary Group-Differential Ster | 1 |
8r7905 Pump & Mounting Gp (Steering)
| 8R***05 | Pump & Mounting Group | 1 |
4e8719 Pump & Mounting Gp-Steering
| 4E***19 | Pump & Mounting Group | 1 |
6e1826 Pump Gp-Piston (Slipper)
| 6E***26 | Pump Group-Piston | 1 |
6e0383 Valve Gp-Flow Control & Relief
| 6E***83 | Valve Group-Flow Control & Relief | 1 |
Drawbar, Three Point Hitch And Pto
8r7134 Control & Mounting Gp-Part 2 Of 2
| 8R***34 | Control & Mounting Group; Mounting & Control Gp | 1 |
8r7134 Control & Mounting Gp-Part 1 Of 2
| 8R***34 | Control & Mounting Group; Mounting & Control Gp | 1 |
3w5102 Control Gp-Power Take-Off
| 3W***02 | Control Group-Power Take-Off; Control Gp-Power Take-Off | 1 |
3w5096 Quick Coupler Gp (Hitch)
| 3W***96 | Coupler Group-Quick; Coupler Gp-Quick | 1 |
9t9517 Cylinder Gp-Hitch Lift (Chg 02)
| 9T***17 | Cylinder Group-Hitch Lift | 1 |
9t9517 Cylinder Gp-Hitch Lift (Chgs 00-01)
| 9T***17 | Cylinder Group-Hitch Lift | 1 |
3w5104 Drawbar Gp
| 3W***04 | Drawbar Group; Drawbar Gp | 1 |
3w5022 Drawbar Gp-Swinging
| 3W***22 | Drawbar Group-Swinging | 1 |
9u1695 Drawbar Gp-Swinging
| 9U***95 | Drawbar Group-Swinging | 1 |
7t3000 Drive Gp-Power Take-Off
| 7T***00 | Drive Group-Power Take-Off | 1 |
8r4820 Hitch Ar (Field Installlation)
| 3W***91 | Hitch Group-3 Point; Hitch Gp-3 Point | 1 |
| 3W***95 | Lines Group-Hydraulic; Lines Gp-Hydraulic 1 | 1 |
| 3W***96 | Coupler Group-Quick; Coupler Gp-Quick | 1 |
3w5055 Hitch Ar
| 3W***55 | Hitch Ar | 1 |
| 3W***91 | Hitch Group-3 Point; Hitch Gp-3 Point | 1 |
| 3W***95 | Lines Group-Hydraulic; Lines Gp-Hydraulic 1 | 1 |
3w5091 Hitch Gp-3 Point
| 3W***91 | Hitch Group-3 Point; Hitch Gp-3 Point | 1 |
3w5079 Lines Gp-Hydraulic
| 3W***79 | Lines Group-Hydraulic | 1 |
3w5095 Lines Gp-Hydraulic-Part 1 Of 2
| 3W***95 | Lines Group-Hydraulic; Lines Gp-Hydraulic 1 | 1 |
3w6838 Lines Gp-Hydraulic (Four Circuit)
| 3W***38 | Lines Group-Hydraulic; Lines Gp-Hydraulic 4 | 1 |
3w5095 Lines Gp-Hydraulic-Part 2 Of 2
| 3W***95 | Lines Group-Hydraulic; Lines Gp-Hydraulic 1 | 1 |
3w5103 Lines Gp-Power Train Oil
| 3W***03 | Lines Group-Power Train Oil; Lines Gp-Power Train Oil | 1 |
4e7866 Link Gp-Lift
| 4E***66 | Link Group | 1 |
3w9400 Link Gp-Lift
| 3W***00 | Link Group; Link Gp | 1 |
4e7872 Link Gp-Pitch Control
| 4E***72 | Link Group | 1 |
8r0657 Link Gp-Pitch Control
| 8R***57 | Link Group | 1 |
3w5462 Mounting Gp-Power Take Off
| 3W***62 | Mounting Group-Power Take-Off; Mounting Gp-Power Take-Off | 1 |
8r7940 Power Take-Off Ar
| 3W***20 | Power Take-Off Group-Rear; Power Take-Off Gp-Rear | 1 |
| 3W***01 | Shaft Group-Power Take-Off; Shaft Gp-Power Take-Off | 1 |
| 3W***02 | Control Group-Power Take-Off; Control Gp-Power Take-Off | 1 |
4e4498 Power Take-Off Ar (Field Conversion)
| 3W***20 | Power Take-Off Group-Rear; Power Take-Off Gp-Rear | 1 |
| 3W***01 | Shaft Group-Power Take-Off; Shaft Gp-Power Take-Off | 1 |
| 3W***02 | Control Group-Power Take-Off; Control Gp-Power Take-Off | 1 |
3w5020 Power Take-Off Gp-Rear
| 3W***20 | Power Take-Off Group-Rear; Power Take-Off Gp-Rear | 1 |
3w5101 Shaft Gp-Power Take Off
| 3W***01 | Shaft Group-Power Take-Off; Shaft Gp-Power Take-Off | 1 |
3w5023 Support Gp-Drawbar
| 3W***23 | Support Group-Drawbar | 1 |
8r4819 Lines & Valve Gp
| 2K***99 | Seal-Interface Between Inlet Manifold | 2 |
| 3W***91 | Tube As | 1 |
| 5G***30 | Tube As | 1 |
6t4739 Valve Gp-Modulating
| 6T***39 | Valve Group-Modulating | 1 |
9w0664 Valve Gp-Modulating
| 9W***64 | Valve Group-Modulating; Valve Gp-Modulating | 1 |
1u1100 Valve Gp-Pressure Reducing
| 1U***00 | Valve Group-Pressure Reducing | 1 |
Electrical System
3e7763 Control Gp-Electronic
| 3E***63 | Control Group-Electronic; (Ground Speed Sensor) | 1 |
9x3333 Control Gp-Electronic (Ground Speed Sensor)
| 9X***33 | Control Group-Electronic | 1 |
9x7153 Control Gp-Electronic
| 9X***53 | Control Group-Electronic | 1 |
3e3790 Control Gp-Electronic*R
| 3E***90 | Control Group-Electronic | 1 |
9w2407 Lamp Gp
| 9W***07 | Lamp Group; (L.H.) | 1 |
9w2408 Lamp Gp
| 9W***08 | Lamp Group; (R.H.) | 1 |
6t7160 Lamp Gp
| 6T***60 | Lamp Group | 1 |
3w5106 Lighting Gp-Cab & Rops
| 3W***06 | Lighting Group-Cab & Rops | 1 |
3w5097 Sender Gp
| 2Y***22 | Lockwasher | 1 |
| 3E***42 | Switch As-Low Fuel-Sump Tank | 1 |
| 3E***03 | Sensor-Fuel Level-R.H. Rear Fuel Cell | 1 |
3w5160 Sensor & Mounting Gp
| 3W***60 | Sensor & Mounting Group; Mounting & Sensor Gp | 1 |
8r6700 Sensor & Mounting Gp
| 8R***00 | Sensor & Mounting Group | 1 |
3e7863 Starting Motor Gp-Electric
| 3E***63 | Starting Motor Group-Electric | 1 |
8c3592 Starting Motor Gp-Electric
| 8C***92 | Starting Motor Group-Electric | 1 |
8c3593 Starting Motor Gp-Electric*R (12 Volt)
| 8C***93 | Starting Motor Group-Electric | 1 |
8c3592 Starting Motor Gp-Electric (12 Volt)
| 8C***92 | Starting Motor Group-Electric | 1 |
9y7129 Starting Motor Gp-Electric (12 Volt)
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
| 8C***92 | Starting Motor Group-Electric | 1 |
| 8S***32 | Bolt; (12 Point Head) (5/8-11x1.75in) | 3 |
3w5105 Switch Gp
| 3W***05 | Switch Group | 1 |
7e7913 Alternator Gp-Charging (115 Ampere)
| 7E***13 | Alternator Group-Charging | 1 |
9x9096 Alternator Gp-Charging*R
| 9X***96 | Alternator Group-Charging | 1 |
8r4584 Battery Gp
| 8R***84 | Battery Group | 1 |
4p0508 Control & Mounting Gp
| 4P***08 | Control & Mounting Group | 1 |
7e6771 Control & Mounting Gp (243 Kilowatt)
| 7E***71 | Control & Mounting Group | 1 |
4p9434 Control & Mounting Gp
| 4P***34 | Control & Mounting Group | 1 |
3e5472 Control Gp-Electric
| 3E***72 | Control Group-Electrical | 1 |
4e0642 Fastener Gp
| 4E***42 | Fastener Group | 1 |
9x9009 Guard Gp-Alternator
| 9X***09 | Guard Group-Alternator | 1 |
4e7484 Lighting Gp-Part 1 Of 2
| 4E***84 | Lighting Group | 1 |
4e7484 Lighting Gp-Part 2 Of 2
| 4E***84 | Lighting Group | 1 |
4e0202 Monitor Ar-True Ground Speed Sensor
| 3E***90 | Control Group-Electronic | 1 |
| 3W***97 | Sender Group; Sender Gp | 1 |
| 3W***60 | Sensor & Mounting Group; Mounting & Sensor Gp | 1 |
4p9429 Sensor Gp-Electronic
| 4P***29 | Sensor Group-Electronic | 1 |
4p9874 Sensor Gp-Electronic
| 4P***74 | Sensor Group-Electronic | 1 |
4p0500 Sensor Gp-Electronic
| 4P***00 | Sensor Group-Electronic | 1 |
7c8590 Sensor Gp-Electronic
| 7C***90 | Sensor Group-Engine | 1 |
2w8918 Magnetic Pickup As
| 2W***18 | Sensor Group-Speed; -Engine Timing | 1 |
1029029 Sensor Gp-Speed
| 10***29 | Sensor Group-Speed; -Timing-Engine Speed | 1 |
8r7941 Starting Aid Gp-Ether
| 8R***41 | Starting Aid Group-Ether | 1 |
4e0444 Wiring Gp-Cab-Part 4 Of 5
| 4E***44 | Wiring Group-Cab | 1 |
4e0444 Wiring Gp-Cab-Part 1 Of 5
| 4E***44 | Wiring Group-Cab | 1 |
4e0444 Wiring Gp-Cab-Part 5 Of 5
| 4E***44 | Wiring Group-Cab | 1 |
4e0444 Wiring Gp-Cab-Part 2 Of 5
| 4E***44 | Wiring Group-Cab | 1 |
4e0444 Wiring Gp-Cab-Part 3 Of 5
| 4E***44 | Wiring Group-Cab | 1 |
4p0499 Wiring Gp-Electronic Control
| 4P***99 | Wiring Group-Electronic Control | 1 |
9y4185 Wiring Gp-Electronic Control
| 9Y***85 | Wiring Group-Electronic Control | 1 |
4p9428 Wiring Gp-Electronic Control
| 4P***28 | Wiring Group-Electronic Control | 1 |
8r4583 Wiring Gp-Vehicle-Part 4 Of 6
| 8R***83 | Wiring Group-Machine | 1 |
8r4583 Wiring Gp-Vehicle-Part 2 Of 6
| 8R***83 | Wiring Group-Machine | 1 |
8r4583 Wiring Gp-Vehicle-Part 1 Of 6
| 8R***83 | Wiring Group-Machine | 1 |
8r4583 Wiring Gp-Vehicle-Part 6 Of 6
| 8R***83 | Wiring Group-Machine | 1 |
8r4583 Wiring Gp-Vehicle-Part 5 Of 6
| 8R***83 | Wiring Group-Machine | 1 |
8r4583 Wiring Gp-Vehicle-Part 3 Of 6
| 8R***83 | Wiring Group-Machine | 1 |
4p0502 Wiring Gp-Unit Injector
| 4P***02 | Wiring Group-Unit Injector | 1 |
Engine Arrangement
7e3713 Engine Ar-Part 2 Of 3
| 10***38 | Housing Group-Front | 1 |
| 4P***09 | Pump Group-Fuel Injection | 6 |
| 4P***10 | Pump Group-Fuel Injection | 6 |
7e3713 Engine Ar-Part 3 Of 3
| 3E***30 | Kit-Cylinder Block; (Rear Structure) | 0 |
| 3E***29 | Kit-Gasket; (Oil Cooler And Lines) | 0 |
| 3E***31 | Water Pump | 0 |
7e3713 Engine Ar-Part 1 Of 3
| 4P***08 | Control & Mounting Group | 1 |
| 4P***98 | Coolant Conditioner Group | 1 |
| 4P***55 | Cooler Group-Engine Oil | 1 |
Frame And Body
3w5061 Axle Gp-Front
| 3W***61 | Axle Group-Front | 1 |
9t7802 Cylinder Gp-Belt Tensioner (Change 00-03)
| 9T***02 | Cylinder Group-Belt Tensioner | 1 |
8r4978 Guard Gp-Track Roller
| 8R***78 | Guard Group-Track Roller | 1 |
3w5046 Mounting Gp-Cab
| 3W***46 | Mounting Group-Cab | 1 |
3w5063 Support Gp-Suspension
| 3W***63 | Support Group-Suspension | 1 |
3w5062 Suspension Gp
| 3W***62 | Suspension Group | 1 |
3w5059 Tensioner Gp
| 3W***59 | Tensioner Group-Belt | 1 |
9t7924 Valve Gp-Relief--Direct Operated
| 9T***24 | Valve Group-Relief | 1 |
1r0880 Wheel & Idler Gp
| 1R***80 | Wheel & Idler Group | 1 |
1r0949 Belt & Drive Gp
| 1R***49 | Belt & Drive Group | 1 |
Belt Ars-Vehicle Drive
| 1R***38 | Belt 626 mm (25") Wide | 2 |
| 1R***58 | Belt Ar | 0 |
| 1R***66 | Belt 626 mm (25") Wide | 2 |
8r4580 Frame Gp-Part 2 Of 2
| 8R***80 | Frame Group | 1 |
8r4580 Frame Gp-Part 1 Of 2
| 8R***80 | Frame Group | 1 |
8r4581 Hood & Guard Gp
| 8R***81 | Hood & Guard Group | 1 |
4e4160 Step Gp
| 4E***60 | Step Group | 1 |
Fuel System
8r7936 Tank Gp-Fuel
| 8R***36 | Tank Group-Fuel | 1 |
3w5018 Tank Gp-Fuel
| 3W***18 | Tank Group-Fuel | 1 |
4e1671 Tank Gp-Fuel
| 4E***71 | Tank Group-Fuel | 1 |
9u3414 Cap Gp-Fuel
| 1U***46 | Sealant (For Locations A) | 1 |
| 2H***88 | Seal-O-Ring; (50.17mm Id) | 2 |
| 3N***56 | Screw-Tapping | 12 |
7c1760 Filter Gp-Fuel
| 7C***60 | Filter Group-Fuel | 1 |
7c6399 Filter Gp-Primary Fuel
| 7C***99 | Filter Group-Primary Fuel | 1 |
4p5018 Filter Gp-Primary Fuel
| 4P***18 | Filter Group-Primary Fuel | 1 |
8r4588 Installation Gp-Controls
| 8R***88 | Installation Group-Controls | 1 |
4e7715 Lines Gp-Fuel
| 4E***15 | Lines Group-Fuel | 1 |
8r4582 Lines Gp-Fuel
| 2V***87 | Bracket | 2 |
| 3P***47 | Clamp | 2 |
| 3W***82 | Hose | 2 |
9y8289 Lines Gp-Fuel Injection
| 9Y***89 | Lines Group-Fuel Injection | 1 |
4p0510 Pump Gp-Fuel Injection-Unit
| 4P***10 | Pump Group-Fuel Injection | 1 |
4p0509 Pump Gp-Fuel Injection
| 4P***09 | Pump Group-Fuel Injection | 1 |
7c2919 Pump Gp-Fuel Priming
| 7C***19 | Pump Group-Fuel Priming | 1 |
4p3777 Pump Gp-Fuel Transfer (One Section Gear)
| 4P***77 | Pump Group-Fuel Transfer | 1 |
9y4183 Pump Gp-Fuel Transfer
| 9Y***83 | Pump Group-Fuel Transfer | 1 |
1070592 Service Gp
| 00***98 | Connector-Hose (3/4-14nptf Thd) | 2 |
| 00***90 | Elbow | 1 |
| 00***86 | Connector-Hose (1/4-18nptf Thd) | 1 |
Hydraulic System
9t5238 Adjustment Gp-Hydraulic Valve
| 9T***38 | Adjustment Group-Hydraulic Valve | 1 |
8r9959 Cover Gp
| 8R***59 | Cover Group | 1 |
3w5077 Mounting Gp-Hydraulic Tank
| 3W***77 | Mounting Group-Hydraulic Tank | 1 |
8r7904 Pump & Mounting Gp
| 8R***04 | Pump & Mounting Group | 1 |
6e0356 Pump Gp-Piston
| 6E***56 | Pump Group-Piston | 1 |
9t3819 Rotating Gp-Pump
| 9T***19 | Rotating Group-Pump | 1 |
4e2918 Valve & Mounting Gp
| 4E***18 | Valve & Mounting Group | 1 |
4e4059 Valve & Mounting Gp-4 Implement
| 4E***59 | Valve & Mounting Group | 1 |
6e0389 Valve Gp
| 6E***89 | Valve Group | 1 |
6e0387 Valve Gp-Bank-4 Control Valve
| 6E***87 | Valve Group | 1 |
6e0385 Valve Gp-Control
| 6E***85 | Valve Group-Control | 1 |
9t1799 Valve Gp-Control
| 9T***99 | Valve Group-Control; Valve Gp-Control | 1 |
9t1812 Valve Gp-Compensator
| 9T***12 | Valve Group-Press & Flow Cmpnstr | 1 |
9t1819 Valve Gp-Relief
| 9T***19 | Valve Group-Relief | 1 |
8r7906 Lines Gp-Hydraulic Oil
| 8R***06 | Lines Group-Hydraulic | 1 |
6e1877 Tank Gp-Hydraulic-Part 1 Of 2
| 6E***77 | Tank Group-Hydraulic | 1 |
6e1877 Tank Gp-Hydraulic-Part 2 Of 2
| 6E***77 | Tank Group-Hydraulic | 1 |
4e7483 Trim Gp-Hydraulic Tank
| 4E***83 | Trim Group | 1 |
4t1860 Valve Gp-Shuttle
| 4T***60 | Valve Group-Shuttle; -Ripper Lift-Ripper Tilt-Blade Tilt-Blade Lift | 1 |
Lubrication System
3w5083 Filter & Mounting Gp
| 3W***83 | Filter & Mounting Group | 1 |
1112720 Base Gp-Oil Filter
| 11***20 | Base Group-Oil Filter | 1 |
9y8257 Filler Gp-Oil
| 9Y***57 | Filler Group-Engine Oil; -Left Front | 1 |
4p8509 Filler Gp-Oil
| 4P***09 | Filler Group-Oil | 1 |
9y3899 Filter Gp-Oil
| 9Y***99 | Filter Group-Engine Oil | 1 |
9y4839 Fumes Disposal Gp
| 9Y***39 | Fumes Disposal Group | 1 |
4p8507 Gauge Gp-Oil Level (Dipstick)
| 4P***07 | Gauge Group-Oil Level (Dipstick) | 1 |
9y1843 Gauge Gp-Oil Level (Dipstick)
| 9Y***43 | Gauge Group-Oil Level (Dipstick); -Left Side | 1 |
4p8298 Lines Gp-Engine Oil
| 4P***98 | Lines Group-Engine Oil | 1 |
9y3982 Lines Gp-Engine Oil
| 9Y***82 | Lines Group-Engine Oil | 1 |
7e8571 Lines Gp-Turbocharger Oil
| 7E***71 | Lines Group-Turbocharger Oil | 1 |
6i2515 Lines Gp-Turbocharger Oil
| 6I***15 | Lines Group-Turbocharger Oil | 1 |
6i2541 Lines Gp-Turbocharger Oil
| 6I***41 | Lines Group-Turbocharger Oil | 1 |
9y8073 Pump Gp-Engine Oil (One Section Gear)*R
| 9Y***73 | Pump Group-Engine Oil | 1 |
9y3791 Pump Gp-Engine Oil (One Section Gear)
| 9Y***91 | Pump Group-Engine Oil | 1 |
Operator Station
9x1096 Air Conditioner & Mounting Gp
| 9X***96 | Air Conditioner & Mounting Group; Air Conditioner & Mounting Gp | 1 |
9x0324 Air Conditioner Gp-Part 2 Of 2
| 9X***24 | Air Conditioner Group | 1 |
9x0324 Air Conditioner Gp-Part 1 Of 2
| 9X***24 | Air Conditioner Group | 1 |
8r1626 Arm Gp-Swing
| 8R***26 | Arm Group-Swing | 1 |
8r7938 Cab Gp
| 3W***68 | Control Group-Transmission; Control Gp-Transmission | 1 |
| 3W***37 | Cab Group; Cab Gp | 1 |
| 3W***41 | Panel Group-Instrument; Panel Gp-Instrument | 1 |
3w5037 Cab Gp-Part 3 Of 5
| 3W***37 | Cab Group; Cab Gp | 1 |
3w5037 Cab Gp-Part 2 Of 5
| 3W***37 | Cab Group; Cab Gp | 1 |
3w5037 Cab Gp-Part 1 Of 5
| 3W***37 | Cab Group; Cab Gp | 1 |
3w5037 Cab Gp-Part 4 Of 5
| 3W***37 | Cab Group; Cab Gp | 1 |
3w5037 Cab Gp-Part 5 Of 5
| 3W***37 | Cab Group; Cab Gp | 1 |
3w5051 Control Gp-Brake
| 3W***51 | Control Group-Brake | 1 |
4e2662 Control Gp-Brake & Clutch-Part 1 Of 2
| 4E***62 | Control Group-Clutch & Brake | 1 |
4e2662 Control Gp-Brake & Clutch-Part 2 Of 2
| 4E***62 | Control Group-Clutch & Brake | 1 |
3w5058 Control Gp-Brake & Clutch-Part 2 Of 2
| 3W***58 | Control Group-Clutch & Brake; Control Gp-Brake & Clutch | 1 |
3w5058 Control Gp-Brake & Clutch-Part 1 Of 2
| 3W***58 | Control Group-Clutch & Brake; Control Gp-Brake & Clutch | 1 |
3w5047 Control Gp-Hydraulic
| 3W***47 | Control Group-Hydraulic; Control Gp-Hydraulic | 1 |
3w5052 Control Gp-Steering
| 3W***52 | Control Group-Steering; Control Gp-Steering | 1 |
3w4568 Control Gp-Transmission
| 3W***68 | Control Group-Transmission; Control Gp-Transmission | 1 |
3w5056 Control & Duct Gp
| 3W***56 | Duct & Control Group; Control & Duct Gp | 1 |
7x6023 Filter Gp-Cab Air
| 7X***23 | Filter Group-Cab Air | 1 |
3w5028 Horn Gp-Electric
| 3W***28 | Horn Group-Electric | 1 |
3w5044 Panel Gp-Instrument
| 3W***44 | Panel Group-Instrument; Panel Gp-Instrument | 1 |
3w5041 Panel Gp-Instrument
| 3W***41 | Panel Group-Instrument; Panel Gp-Instrument | 1 |
9x3509 Radio Gp-Am/Fm/Cassette (12 Volt Dc)
| 9X***09 | Radio Group | 1 |
3w6744 Seat Gp-Grammer-Part 2 Of 3
| 3W***44 | Seat Group; Seat Gp-Adjustable | 1 |
9u4541 Seat Gp
| 9U***41 | Seat Group | 1 |
3w6744 Seat Gp-Grammer-Part 3 Of 3
| 3W***44 | Seat Group; Seat Gp-Adjustable | 1 |
3w6744 Seat Gp-Grammer-Part 1 Of 3
| 3W***44 | Seat Group; Seat Gp-Adjustable | 1 |
3w5053 Seat Gp-Adjustable
| 10***97 | Bracket | 1 |
| 3W***53 | Seat Group-Adjustable | 1 |
| 3W***44 | Seat Group; Seat Gp-Adjustable | 1 |
4e3342 Suspension Gp
| 4E***42 | Suspension Group | 1 |
3w5042 Wiper Gp
| 3W***42 | Wiper Group; -Front | 1 |
3w6598 Wiper Gp
| 3W***98 | Wiper Group | 1 |
3w6027 Wiper Gp
| 3W***27 | Wiper Group | 1 |
3w5107 Wiper Gp
| 3W***07 | Wiper Group | 1 |
1043281 Absorber Gp-Shock
| 10***81 | Absorber Group-Shock | 1 |
1043269 Air Compressor Gp
| 10***69 | Air Compressor Group | 1 |
1043267 Bar Gp
| 10***67 | Bar Group | 1 |
1043279 Bearing Gp-Lower
| 10***79 | Bearing Group-Lower | 1 |
1043280 Bellows Gp
| 10***80 | Bellows Group | 1 |
1043274 Cam As-Sliding
| 10***74 | Cam As-Sliding | 1 |
7t7825 Clutch & Refrigerant Compressor Gp
| 7T***25 | Compressor Group-Clutch & Refrig | 1 |
7e7915 Compressor Gp-Refrigerant
| 7E***15 | Compressor Group-Refrigerant | 1 |
7e7672 Condenser Gp
| 7E***72 | Condenser Group | 1 |
4e0445 Control Gp-Governor-Part 1 Of 2
| 4E***45 | Control Group-Governor | 1 |
4e0445 Control Gp-Governor-Part 2 Of 2
| 4E***45 | Control Group-Governor | 1 |
4e0728 Cover Gp-Dash
| 1V***22 | Nut-Speed-Front Headliner Support | 6 |
| 3W***19 | Cover As | 1 |
| 3W***08 | Film-High Beam/Turn Indicator | 1 |
9u1695 Drawbar Gp-Swinging
| 9U***95 | Drawbar Group-Swinging | 1 |
1043266 Lever Gp-Control
| 10***66 | Lever Group-Control | 1 |
1043271 Lines Gp-Air Compressor
| 10***71 | Lines Group-Air Compressor | 1 |
8r4586 Lines Gp-Air Conditioner-Part 1 Of 2
| 8R***86 | Lines Group-Air Conditioner | 1 |
8r4586 Lines Gp-Air Conditioner-Part 2 Of 2
| 8R***86 | Lines Group-Air Conditioner | 1 |
1043277 Linkage Gp-Suspension
| 10***77 | Linkage Group-Suspension | 1 |
1043263 Plate Gp-Upper
| 10***63 | Plate Group-Upper | 1 |
4e9422 Seat Belt As
| 4E***22 | Seat Belt As | 1 |
1043262 Seat Gp-Suspension-Part 2 Of 3
| 10***62 | Seat Group-Suspension | 1 |
1043262 Seat Gp-Suspension-Part 3 Of 3
| 10***62 | Seat Group-Suspension | 1 |
1043262 Seat Gp-Suspension-Part 1 Of 3
| 10***62 | Seat Group-Suspension | 1 |
1043273 Spring Gp-Air
| 10***73 | Spring Group-Air | 1 |
1043264 Stop Gp
| 10***64 | Stop Group | 1 |
4e1293 Support Gp
| 4E***93 | Support Group | 1 |
1043261 Suspension Gp-Seat-Air
| 10***61 | Suspension Group-Seat | 1 |
1043278 Wiring Gp
| 10***78 | Wiring Group | 1 |
Service Equipment And Supplies
Name Plates & Films
| 1P***07 | Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation | 4 |
| 3E***16 | Film-Warning-On Top Master Shield | 1 |
| 3E***27 | Plate-Rops/Fops-On Left Rear Of Cab Just | 1 |
Transmission
9w0342 Actuator Gp-Rotary
| 9W***42 | Actuator Group-Rotary | 1 |
9w5623 Cover Gp-Shipping
| 9W***23 | Cover Group-Shipping; Cover Gp-Shipping | 1 |
6t4740 Covers Gp-Shipping
| 6T***40 | Cover Group-Shipping; Covers Gp-Shipping | 1 |
7t3443 Drive Gp-Pump
| 7T***43 | Drive Group-Pump; Drive Gp-Transmission Pump | 1 |
9w1374 Drive Gp-Pump
| 9W***74 | Drive Group-Pump; Drive Gp-Steering Pump | 1 |
3w5072 Filler Gp-Power Train Oil
| 3W***72 | Filler Group-Power Train Oil | 1 |
3w5074 Lines Gp-Filter
| 3W***74 | Lines Group-Transmission Filter | 1 |
7t7953 Pump Gp-Gear
| 7T***53 | Pump Group-Gear | 1 |
7t7990 Pump Gp-Gear
| 7T***90 | Pump Group-Gear; Pump Gp-Gear | 1 |
3w5066 Drive Shaft Gp
| 3W***66 | Shaft Group-Drive | 1 |
3w5032 Support Gp-Transmission
| 3W***32 | Support Group-Transmission | 1 |
8y1293 Universal Joint Gp
| 8Y***93 | Universal Joint Group | 1 |
6t4733 Valve Gp
| 6T***33 | Valve Group | 1 |
6y0185 Valve Gp-Modulating
| 6Y***85 | Valve Group-Modulating | 1 |
9w1580 Valve Gp-Pressure Control-Part 1 Of 2
| 9W***80 | Valve Group-Pressure Control | 1 |
9w1580 Valve Gp-Pressure Control-Part 2 Of 2
| 9W***80 | Valve Group-Pressure Control | 1 |
6t4735 Valve & Selector Gp
| 6T***35 | Valve Group-Selector & Press Cont | 1 |
8e5142 Case & Parts Gp-Part 1 Of 3
| 8E***42 | Case & Parts Group-Planetary | 1 |
8e5143 Case & Parts Gp-Part 3 Of 3
| 8E***43 | Case & Parts Group-Planetary | 1 |
8e5143 Case & Parts Gp-Part 2 Of 3
| 8E***43 | Case & Parts Group-Planetary | 1 |
8e5142 Case & Parts Gp-Part 2 Of 3
| 8E***42 | Case & Parts Group-Planetary | 1 |
8e5142 Case & Parts Gp-Part 3 Of 3
| 8E***42 | Case & Parts Group-Planetary | 1 |
8e5143 Case & Parts Gp-Part 1 Of 3
| 8E***43 | Case & Parts Group-Planetary | 1 |
9n4504 Clutch Gp-Fifth & Reverse-Part 2 Of 2
| 9N***04 | Clutch Group | 1 |
7t6126 Clutch Gp-High & Low-Part 2 Of 2
| 7T***26 | Clutch Group | 1 |
9n4504 Clutch Gp-Fifth & Reverse-Part 1 Of 2
| 9N***04 | Clutch Group | 1 |
7t6126 Clutch Gp-High & Low-Part 1 Of 2
| 7T***26 | Clutch Group | 1 |
8e7038 Control Gp-Transmission Hydraulic
| 8E***38 | Control Group-Transmission Hydraulic | 1 |
8r4597 Lines Gp-Power Train Cooler
| 8R***97 | Lines Group-Power Train Cooler | 1 |
6y1242 Planetary Gp-Part 3 Of 3
| 6Y***42 | Planetary Group | 1 |
6y1242 Planetary Gp-Part 1 Of 3
| 6Y***42 | Planetary Group | 1 |
6y1242 Planetary Gp-Part 2 Of 3
| 6Y***42 | Planetary Group | 1 |
8e5141 Shaft Gp-Input
| 8E***41 | Shaft Group-Input | 1 |
8r4592 Shaft Gp-Input
| 8R***92 | Shaft Group-Input | 1 |
7t6362 Transmission Ar
| 6Y***42 | Planetary Group | 1 |
| 7T***00 | Drive Group-Power Take-Off | 1 |
| 7T***43 | Drive Group-Pump; Drive Gp-Transmission Pump | 1 |
7t6123 Transmission Ar
| 3E***34 | Parts & Case | 0 |
| 3E***35 | Hydraulic Control | 0 |
| 6T***40 | Cover Group-Shipping; Covers Gp-Shipping | 1 |
8e7037 Valve Gp-Relief
| 8E***37 | Valve Group-Relief | 1 |
3176 serial number reference
The engine serial/PIN plate is a metal tag riveted to the engine, typically on the left side of the cylinder block near the fuel injection pump or rocker cover. If the plate is missing or damaged, the number is also stamped into the block itself, usually on the right side behind the exhaust manifold. The serial number reads as a 3-character arrangement prefix (letters and/or digits) followed by a sequential run of digits. Match the prefix, not the sequence digits, against Caterpillar's arrangement list to identify the specific build, application, and approximate model year.
| Prefix | Identifies | Notes |
|---|---|---|
| 43Z | Engine - Machine (agricultural power unit) | Powers the Challenger 75C (about 325 hp / 242 kW) and Challenger 85C (about 355 hp / 265 kW, air-to-air aftercooled) rigid-frame and rubber-track tractors, early-to-mid 1990s build. Same core 3176 diesel generation as the on-highway truck-engine prefixes of that period (7LG, 2YG), adapted to the agricultural power-shift driveline. |
| 7LG | Truck Engine (on-highway) | Base 3176 on-highway truck engine arrangement, early 1990s, rated about 325 hp (242 kW). Separate from the 3176B truck arrangement. Dedicated factory overhaul and fault-code documentation exists for this specific arrangement. |
| 2YG | Truck Engine (on-highway) | Base 3176 on-highway truck engine arrangement from the original truck lineup that preceded 3176B/3176C, contemporaneous with 7LG in the early-1990s production run. Dedicated service documentation and control-module listings exist for it separately from 7LG. |
| 5XN | Truck Engine (on-highway) | Base 3176 on-highway truck engine arrangement per standard Caterpillar serial-prefix identification references. Dedicated overhaul or fault-code documentation for this specific arrangement is sparser than for 2YG/7LG - confirm exact serial break points with your dealer. |
Frequently asked questions
What engine powers this Caterpillar 3176 machine?
A 10.3 liter (629 cu in) turbocharged, aftercooled inline-six diesel using electronic unit injection under Caterpillar's PEEC control. Across the Challenger 75, 75C, and 85C it was rated from roughly 325 to 355 gross hp (242 to 265 kW), varying by model and series.
What is the operating weight?
Roughly 33,300 to 34,400 lb (15.1 to 15.6 t), depending on model and configuration. The 75C sits near the bottom of that range and the 85C near the top; verify against your specific model and equipment for an exact figure.
What replaced this engine and machine?
There is no direct one-for-one successor. Within Caterpillar's own line, the larger 85D and 95E Challengers moved up to the bigger 3196 engine. Caterpillar sold its Challenger farm-tractor design, assembly, and marketing to AGCO in 2002, and AGCO kept the Challenger name going on its own later MT-series tractors.
What 3176 owners discuss
Is the hydrostatic differential steering on a 3176-powered Challenger reliable, and what does a fault feel like?
The differential steering system is regarded as simple and generally trouble-free. Unequal steering pull side to side is usually a track tension or suspension/air-bag pressure imbalance, not a steering fault — check and match tension/pressure on both sides first. Steering that feels strong when cold but goes soft or delayed once oil reaches normal operating temperature (roughly 82°C/180°F) points to internal leakage past the steering pump or motor; case-drain flow above about 19 L/min (5 US gpm) at either component calls for a rebuild. Slow, long-term internal valve leakage can also overfill the transmission with steering oil while the steering reservoir runs low, so check both levels together if response feels weak. Have your dealer verify case-drain flow and reservoir levels before replacing the pump or motor.
What undercarriage wear is normal on these rubber-track Challengers, and how is track tension adjusted?
Track tension is held by a spring-and-nitrogen hydraulic tensioner and adjusted at a grease fitting: adding grease extends the idler and tightens the track, backing grease out lets the idler retract and the track sag. Adjust in small increments and recheck against the operator's manual sag spec; some dash layouts include a tension-imbalance warning light. Idler wheels are a wear item — watch for rubber pitting, cracking, or chunks missing from the tread, and check idler hub oil level once a season. Guide blocks that keep the track aligned to the frame can be bonded or bolted; loose or missing blocks let the track walk and should be corrected before the frame rail takes damage. Track tensioner cylinders hold grease under high pressure — have your dealer verify safe de-pressurization procedure before loosening a fitting.
What are the known 3176 engine quirks in this Challenger application?
The most common complaint is a coolant weep at the aluminum spacer deck between the cylinder block and head, most often showing up once an engine is well past mid-life hours. Fixing it means splitting the head from the spacer, so it is a major labor job, not a quick gasket swap. Outside of that spacer-deck issue, long-term users describe the inline six as strong and generally trouble-free compared with the transmission and final drives on the same machine, which rarely give problems. Have your dealer verify a spacer-deck leak with a pressure/dye test before committing to head removal.
Why does a 3176 in one of these tractors sometimes need starting fluid every time, hot or cold?
Chronic ether dependence on this engine is usually a fuel-pressure problem at cranking speed, not a true cold-start issue — it shows up hot as well as cold. The engine needs adequate rail pressure to fire cleanly on the first few revolutions; figures cited for a healthy system run roughly 480-620 kPa (70-90 psi) depending on where in the fuel circuit it's measured, so treat any single number as a rough target and confirm the exact spec for the serial/configuration in front of you. Suspects include a weak lift pump, a leaking or stuck check/poppet valve in the fuel return housing on the cylinder head, and injectors worn enough that they can't build pressure until the engine is already spinning — ether gives just enough extra push to get past that threshold. If ether dependence shows up alongside injector-circuit fault codes, look at injector wiring and the ECM connector before condemning injectors outright. Have your dealer verify fuel rail pressure and injector condition with proper test equipment before replacing parts.
What electrical and sensor problems show up on these Challengers, and how should they be chased down?
Grounds and harness condition cause more intermittent faults than the ECM itself. The cab ground strap and chassis control module ground connections work loose or corrode with age — wiggling and flexing the harness while watching for a dropout is a standard first step. Harness wire can look intact on the outside while individual strands are broken inside the insulation from years of vibration and flexing, so a static continuity check at rest can miss the fault; test under flex or load instead. A sensor circuit fault code identifies the circuit, not necessarily the failed part — verify wiring and connector condition between the sensor and the ECM before swapping the sensor or the ECM. Have your dealer verify any ECM or sensor circuit fault with the proper diagnostic software before parts are replaced.
Were these Challengers typically run with a PTO and three-point hitch, or drawbar only?
Many Cat-era Challengers in this power range left the factory without a rear PTO or three-point hitch at all — set up as pure drawbar/scraper tractors for heavy tillage and towing pull-type implements. Where a hitch is fitted, it is a Category 3 three-point with several tonnes of lift capacity, and rear or mid PTO options exist on some configurations for pull-type or PTO-driven implements. When evaluating a used machine, confirm the PTO and three-point hitch (or their absence) match what the listing states; adding either to a tractor built without them is a substantial conversion, not a simple bolt-on kit.
What should a buyer check before purchasing a used 3176-powered Challenger?
Favor documented service history over hours alone — a well-maintained machine can run through multiple engine rebuilds and tens of thousands of hours, but budget for a spacer-deck coolant-leak inspection on any engine well past mid-life hours. Walk the full length of both tracks looking for tread wear, cuts, exposed steel banding, and loose or missing guide blocks; track replacement or reconditioning is the single largest cost surprise on these machines. Check tensioner pressure/nitrogen charge for even side-to-side tension and confirm any suspension air bags hold their rated pressure. Verify the transmission, differential (back end), and hydraulic systems each show clean, correct-type fluid with no cross-contamination, and that oil-change intervals were kept. Road-test the machine and load-test the steering — differential steering should stay equally responsive left and right once oil is at full operating temperature, not just when cold. Expect some cosmetic corrosion at the lower right-hand cab corner on higher-hour machines; it is a known cosmetic weak spot, not structural. Have your dealer verify any coolant/spacer-deck leak, steering case-drain flow, and track tensioner condition as part of a pre-purchase inspection.
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 3176. Related factory variants of the same model family:
31763176
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