Caterpillartrack-type tractor
Caterpillar D4E SR
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar D4E SR is a small-class track-type tractor built through the late 1970s into the early 1980s, following the D4D in Caterpillar's D4 lineup. SR-configuration machines carry the 2DJ serial prefix. Power comes from the Cat 3304 diesel: naturally aspirated, direct-injected, and mechanically governed, with no electronic engine controls, rated at roughly 75 hp (56 kW) gross flywheel power. Operating weight in standard SR trim runs about 8,820 kg (19,445 lb), with fuel capacity around 238 L (62.9 gal). Drive runs through a powershift transmission and clutch-and-brake steering to a sealed-and-lubricated track undercarriage. Caterpillar sold the D4E platform in three configurations: the SR covered here (standard track gauge and shoe), the SA special-application/agricultural version (same gauge, wider shoe), and the LGP low-ground-pressure version (wider gauge and shoe for soft or wet ground). Standard equipment included a dozer blade roughly 2.44 m (8 ft) wide, with a rear-mounted winch and ROPS canopy or cab offered as options.
Across the D4E family, the SR, SA, and LGP variants differ mainly in track gauge, shoe width, and ground pressure, not in engine or driveline; all run the same 3304 diesel and powershift transmission, so mechanical parts carry across the family. The D4E sits at a transition point in Cat's small-dozer history. It kept the mechanically governed fuel system and clutch/brake steering carried over from the D4D, then gave way to the later D4G-generation dozers and eventually the D4H series, which moved to different steering and, on some later D4 variants, hydrostatic drive. On today's used and parts market, the D4E SR trades mainly on undercarriage condition and 3304 engine hours rather than technology, since it predates electronic engine controls entirely. Its simple mechanical fuel system and the widely produced 3304 block keep parts and rebuild support available well after Cat stopped building the model, and it remains a common utility dozer for small contractors, land clearing, and agricultural work.
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 D4E SR specifications
Identity / Configuration
| Platform | Caterpillar D4E track-type tractor platform (Cat 3304 engine generation), SR undercarriage/application configuration. |
| Configuration context | D4E platform was offered as Standard, LGP, and Special Application (SA) builds; SR is a genuine factory configuration confirmed by its own dedicated parts-catalog listing, separate from the base D4E, SA, and LGP model pages, and by used-equipment listings, but it has no standalone published spec sheet separate from its siblings. |
| Production/market window | D4E-family units carrying the SR designation appear in the used-equipment market from the late 1980s through the late 1990s. |
| Data note | No manufacturer Specalog or spec-aggregator page indexes SR figures separately from the standard/SA/LGP D4E builds. Values below are the confirmed D4E-platform range; items are flagged where a figure is not published specifically for SR and the machine's own data plate/serial number should be used to confirm exact configuration. |
Engine
| Base engine | Caterpillar 3304, 4-cylinder diesel, liquid-cooled |
| Displacement | 7.0 L (425-427 cu in) |
| Bore x stroke | 121 x 152 mm (4.75 x 6.00 in), recorded for the turbocharged Special Application build; not separately confirmed for other builds |
| Aspiration | Naturally aspirated on standard/direct-drive builds; turbocharged on Special Application builds. Aspiration for the SR configuration specifically is not documented in the spec sheets reviewed - confirm from the engine data plate. |
| Gross power | 56-72 kW (75-96.6 hp) gross, varies by configuration and serial-number range across the D4E platform. No SR-specific rating is published separately. |
| Rated engine speed | 2,000 rpm |
| Emissions | Pre-dates EPA/EU nonroad diesel emissions tiers; mechanical fuel system, no aftertreatment. |
Weights
| Operating weight (platform range) | 7,585-10,215 kg (16,722-22,520 lb) across standard, SA, and LGP configurations, depending on undercarriage and blade fitted |
| Operating weight, gear-drive SA reference | approx. 8,642 kg (19,050 lb) |
| Operating weight, SR configuration | Approx. 8,820 kg (19,445 lb) with blade, matching the standard-gauge D4E baseline figures that correspond to SR's confirmed narrow-gauge, standard-shoe undercarriage; verify exact figure against the machine's data plate. |
Dimensions
| Length with blade | 3.87-4.22 m (12.7-13.85 ft), shorter on standard-gauge builds, longer on LGP |
| Length without blade | 3.05-3.37 m (10.0-11.06 ft) |
| Width over tracks | 1.98-2.54 m (6.5-8.34 ft), narrowest on standard gauge, widest on LGP |
| Height to top of cab | 2.71 m (8.9 ft) |
| Ground clearance | 0.356-0.37 m (1.17-1.2 ft) |
| Track gauge | 1.52-1.78 m (4.99-5.84 ft) across standard and LGP builds. SR runs the standard-gauge Direct Drive undercarriage, at the narrower end of this range. |
| Track shoe width | 330-762 mm (13-30 in) depending on configuration. SR runs the narrower standard-configuration shoe near 330 mm (13 in); exact width not separately published. |
| Track length on ground | 1.83-2.22 m (6.01-7.29 ft) |
| Track rollers per side | 5 on standard/SA undercarriages, 6 on LGP |
Performance
| Travel speed forward, powershift (3-speed) | max 9.2 km/h (5.8 mph) |
| Travel speed reverse, powershift (3-speed) | max 10.9-11.4 km/h (6.8-7.1 mph) |
| Travel speed forward, gear/direct-drive (5-speed, SA build) | max 7.6 km/h (4.7 mph) |
| Travel speed reverse, gear/direct-drive (5-speed, SA build) | max 9.0 km/h (5.6 mph) |
| Ground pressure | 29.5-91.7 kPa (4.28-13.3 psi) across the platform, lowest on wide-shoe LGP, highest on narrow-shoe standard configuration. SR runs the standard-gauge undercarriage, so ground pressure sits toward the higher end of this range; exact figure not published. |
| Drawbar pull | Not documented in the spec sheets or dealer/aggregator pages reviewed for this platform or configuration. |
| Gradeability | Not published for this platform in sources reviewed. |
Blades
| Blade width, standard-gauge builds | 2.47 m (8.1 ft) |
| Blade width, LGP build | 3.05 m (10.1 ft) |
| Blade capacity, LGP build | 1.8 m3 (2.3 yd3) |
| Blade capacity, standard/SA builds | Not separately published |
| Blade cutting depth | 231 mm (9.1 in), recorded for the Special Application build |
| Blade, SR configuration | Width and capacity specific to the SR build are not separately published; verify against the machine's own blade data plate. |
Service capacities
| Fuel tank | 193-238 L (51-62.9 US gal), varies by configuration/source |
| Cooling system | approx. 30 L (8 US gal), recorded for the Special Application build |
| Engine oil (crankcase) | Not published in the spec sheets or aggregator pages reviewed |
| Hydraulic system | approx. 22.7 L (6 US gal) reservoir, open-center system, operating pressure approx. 83-119 bar (1,200-1,730 psi). Recorded for the D4E platform generally, not confirmed as SR-specific. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D4E SR fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Approx. 12-16 L (12.7-17 US qt), consistent with the 3304 engine family used across the D4E line; a later 3304-family stablemate (D4H) lists about 15 L (4 US gal). Exact D4E SR factory figure not documented for this serial range - verify with the OMM. | Cat engine oil, single-grade SAE 30, API CD service class, for ambient temperatures above 0°C (32°F). Period Cat practice called for a lighter single-grade (SAE 10W) below freezing. Modern equivalent: Cat DEO. |
| Cooling system | Approx. 30 L (8 US gal) documented for the D4E SA configuration. Base D4E/SR figure not documented for this serial range; capacity varies with radiator and engine configuration - verify with the OMM. | Water/glycol coolant with Cat corrosion inhibitor (era predecessor to today's Cat ELC/DEAC). Verify exact factory-fill spec with the OMM. |
| Fuel tank | 238 L (62.9 US gal) on the standard powershift configuration. The direct-drive SA and wide-gauge LGP variants instead carry 193 L (51 US gal) - capacity varies by configuration. | No. 2-D diesel fuel; No. 1-D diesel in cold weather, per standard Cat OMM guidance. |
| Transmission / powertrain (powershift transmission, bevel gear and steering clutch compartments) | Not documented for this serial range in sources reviewed. The OMM lists the transmission and the bevel gear/steering-clutch housing as separate compartments, each checked and filled by its own dipstick. Verify capacities with the OMM. | Cat TO-2 gear oil (CD/TO-2), single-grade SAE 30, common to the transmission, bevel gear, steering clutch and oil clutch compartments, for ambient above 0°C (32°F). Superseded by Cat TDTO (TO-4) SAE 30 under current Cat guidance. |
| Final drives (each) | Not documented for this serial range in sources reviewed. Verify with the OMM. | Cat LO gear oil, single-grade SAE 50, for ambient above 0°C (32°F). Superseded by Cat TDTO (TO-4) SAE 50 under current Cat guidance. |
| Hydraulic system/tank | Not documented for this serial range in sources reviewed. Verify with the OMM. | Cat HYDO hydraulic oil, SAE 10W. |
| Pivot shaft | Not confirmed whether listed as a separate compartment on the D4E SR; not documented in sources reviewed. | If equipped, service with Cat multipurpose grease per the grease-point schedule below. Verify with the OMM. |
| Grease (fittings, steering clutch cross-shaft, track/undercarriage pivot points) | Serviced by grease-fitting count, not bulk volume. Fitting count and interval not documented for this serial range. | Cat Multipurpose Grease, NLGI 2, general-purpose EP lithium-base grease, service range -30°C to 40°C (-22°F to 104°F). Standard-era Cat OMM guidance for grease fittings and pivot points on this machine class. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar D4E SR maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,500 h |
|
| Every 8,000 h |
|
Servicing the D4E SR beyond the schedule
Predictive Maintenance & Fluid Analysis
The 3304-powered SR has no onboard diagnostics, so scheduled oil analysis is the main early-warning tool. Sample engine oil, steering clutch/bevel gear case oil, and final drive oil at every fluid change and watch trends, not single readings: rising iron or copper points to steering clutch or final drive wear, and coolant in the oil signals a head gasket or liner seal problem. Pair oil analysis with hands-on track pin and bushing wear checks at each undercarriage inspection, since this machine predates electronic wear alerts.
Corrective & Common Repairs
Typical D4E SR failures center on the mechanical fuel system: an out-of-calibration injection pump or worn injectors cause hard starting, smoke, and power loss. Steering clutch and brake linkage wears out of adjustment over time, showing up as the machine pulling to one side or slow steering response. Sealed track pin and bushing wear on machines run past their turn point is common on used units. Radiator core plugging and worn drive belts round out the usual list. Because the driveline predates electronics, most fixes are mechanical adjustment or component exchange, not fault-code diagnosis.
Overhaul & Rebuild Points
Plan the 3304's overhaul around compression, oil consumption, and blow-by rather than a fixed hour figure; the naturally aspirated block is durable, but wet-sleeve liners and rings wear predictably with hours. Steering clutch discs and brake bands, final drive gearing and bearings, and the track chain, roller, idler, and sprocket set are the other major rebuild items. On an SR this age, undercarriage and steering clutch wear typically reach rebuild thresholds well before the engine needs a full teardown.
Seasonal & Environment Servicing
Cold-start prep on the mechanically governed 3304 means priming the fuel system, checking the starting-aid system, and switching to a lighter engine and hydraulic oil viscosity for winter, since there is no electronic cold-start logic to compensate. In wet or abrasive ground, sealed-and-lubricated track life depends on keeping shoe hardware tight and clearing packed material off the rollers and idlers daily. Dusty conditions call for more frequent air cleaner service than the standard interval, since the SR gives no automatic air-restriction warning.
D4E SR fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| High Coolant Temperature (gauge red zone / warning lamp) | Engine coolant temperature has risen above the normal operating range shown on the instrument panel gauge. | Low coolant level, plugged radiator core, loose or broken fan belt, or a stuck thermostat. | Reduce load and idle the engine to cool down, then check coolant level, belt tension, and radiator for debris or leaks before continuing work. |
| Low Engine Oil Pressure (gauge low / warning lamp) | Engine oil pressure has dropped below the safe minimum shown on the panel oil pressure gauge. | Low oil level, worn oil pump, plugged oil filter, or oil diluted by fuel or coolant. | Shut the engine down immediately, check oil level and filter condition, and inspect for leaks before restarting. |
| Torque Converter Oil Temperature High (gauge red zone / warning lamp) | Powershift torque-converter oil temperature has exceeded the normal range. | Low transmission oil level, plugged oil cooler, or sustained lugging/overload of the drivetrain. | Reduce load, let the machine idle to cool, then check transmission oil level and inspect the cooler for blockage. |
| Charging System Malfunction (ammeter discharge / warning lamp) | Alternator is not maintaining battery charge. | Loose or worn alternator belt, faulty alternator or regulator, or a poor battery/ground connection. | Check belt tension and battery connections first, then bench-test the alternator output if the condition persists. |
| Air Cleaner Restriction (service indicator) | Intake air filter restriction has reached the level requiring service. | Dust- or debris-loaded primary or secondary air filter element. | Inspect and clean or replace the affected filter element, then reset the restriction indicator. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D4E SR attachments & work tools
Blades
D4E SR carries the small-dozer straight (S) blade as standard, roughly 2.5 m (8 ft 1 in) wide, for grading and light-to-medium dozing. A semi-universal (SU) blade and a hydraulic angling (A) blade were offered in this size class for more carrying capacity or side-casting. A factory power-angle-tilt (VPAT/6-way) blade is not documented for this model; PAT-style blades for this size class were built by third-party blade makers to bolt onto the same push-arm mounts.
Rippers
The D4E SR takes a rear-mounted multi-shank parallelogram ripper, run with up to three shanks for general ripping or dropped to a single shank for hard/rocky ground and deeper penetration. Single-cylinder and dual-cylinder ripper frame versions exist for this class. Ripper weight sits in the modest range typical of small-dozer rippers, and a front counterweight is commonly fitted to offset the added rear loading.
Winches
Factory-fit towing winch on this class was a rear-mounted, engine-PTO-driven mechanical drum winch from a third-party winch builder rather than a Cat hydraulic unit, used for pipeline, skidding, and swamp/soft-ground pull work. PTO input shaft and mounting-bolt patterns changed across the production run, so match winch and tractor serial ranges before swapping units. No hydraulic planetary winch option is documented for this model.
Drawbars/counterweights
A rear drawbar/hitch group bolts to the main case for towing wagons, sleds, or trailed implements, sized to this small-dozer class rather than the heavier cushioned hitches used on larger tractors. A front counterweight on the order of 300 kg (655 lb) is available to balance the added rear weight of a winch or ripper and keep steering and blade control even.
Cab/ROPS guarding
Base operator protection is a ROPS canopy (open or enclosed cab) common to the D4E line. Forestry and waste-handling builds add bolt-on top and front screen guarding over the ROPS/cab to stop falling limbs and flying debris; this screening is aftermarket rather than a documented factory package for this model, and is sized to the standard ROPS mounting points shared across D4E variants. Confirm exact guard fitment against the ROPS frame on hand, since canopy dimensions varied by build.
Hydraulic arrangement (front/rear tools)
Blade lift, and angle on angling-blade configurations, runs off an open-center hydraulic system fed by an engine-driven pump, with the blade valve and cylinders mounted forward. A rear-mounted ripper draws off the same hydraulic system through its own valve section for shank lift/lower, independent of the blade circuit. The towing winch is mechanically PTO-driven rather than hydraulic, so it does not compete with blade or ripper hydraulic capacity.
All D4E SR assemblies by section
Every catalogued assembly group for the Caterpillar D4E SR. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
4w4565 Air Cleaner Gp
| 4W***65 | Air Cleaner Group | 1 |
5y0727 Air Cleaner Gp
| 5Y***27 | Air Cleaner Group | 1 |
8n4457 Base Gp-Oil Filter
| 8N***57 | Base Group-Oil Filter; Base Group-Engine Oil Filter | 1 |
5y0929 Extension Gp-Air Cleaner
| 5Y***29 | Extension Group-Air Cleaner | 1 |
1w3793 Fastener Gp-Exhaust Manifold
| 1W***93 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
4w4324 Lines Gp-Air
| 4W***24 | Lines Group-Air; Lines Gp-Air-Inlet Manifold | 1 |
5y0551 Lines Gp-Air
| 5Y***51 | Lines Group-Air | 1 |
1w0558 Lines Gp-Turbocharger Oil
| 1W***58 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
2p6571 Manifold Gp-Exhaust
| 2P***71 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
5y1989 Muffler Gp
| 5Y***89 | Muffler Group | 1 |
| 8S***05 | Muffler Assem.-With Ejector | 1 |
5y0809 Muffler Gp
| 5Y***09 | Muffler Group | 1 |
5y0808 Muffler Gp
| 5Y***08 | Muffler Group | 1 |
1w5130 Turbocharger Gp
| 1W***30 | Turbocharger Group | 1 |
1w5160 Turbocharger Gp
| 1W***60 | Turbocharger Group | 1 |
Basic Engine
1w2872 Balancer Gp
| 1W***72 | Balancer Group; Balancer Group | 1 |
1n4436 Camshaft Gp-Single
2w0102 Cover Gp-Cylinder Block
| 2W***02 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
2p6530 Cover Gp-Cylinder Head
| 2P***30 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
4n6508 Cover Gp-Front Housing
| 4N***08 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
8n4446 Cover Gp-Valve Mechanism
| 8N***46 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
2y5204 Crankshaft Gp
| 2Y***04 | Crankshaft Group; Crankshaft Group | 1 |
7n6552 Cylinder Block As
| 7N***52 | Cylinder Block As | 1 |
1n3574 Cylinder Block Gp*R
| 1N***74 | Cylinder Block Group | 1 |
7n6553 Cylinder Block Gp
| 7N***53 | Cylinder Block Group; Cylinder Block Group | 1 |
7n8874 Cylinder Head Gp*R
| 7N***74 | Cylinder Head Group; Cylinder Head Group | 1 |
1n4304 Cylinder Head Gp*R
| 1N***04 | Cylinder Head Group | 1 |
2p7831 Drive Gp-Fan
| 2P***31 | Drive Group-Fan; Fan Drive Group | 1 |
7n9534 Fastener Gp-Cylinder Head
| 7N***34 | Fastener Group-Cylinder Head; Cylinder Head Fastener Group | 1 |
2y5717 Fastener Gp-Front Housing
| 2Y***17 | Fastener Group-Front Housing; Front Housing Fastener Group | 1 |
2p6189 Fastener Gp-Oil Pan
| 2P***89 | Fastener Group-Oil Pan; Oil Pan Fastener Group | 1 |
7s7878 Flywheel Gp
| 7S***78 | Flywheel Group; Flywheel Group | 1 |
1w5634 Gear Gp-Front Timing
| 1W***34 | Gear Group-Front Timing; Front Gear Group--Timing | 1 |
2y9940 Housing Gp-Flywheel
| 2Y***40 | Housing Group-Flywheel | 1 |
8n0303 Housing Gp-Front
| 8N***03 | Housing Group-Front; Front Housing Group | 1 |
2p8598 Hub Gp-Crankshaft
| 2P***98 | Hub Group-Crankshaft; Crankshaft Hub Group | 1 |
6n8326 Lifting Gp
| 6N***26 | Lifting Group; Lifting Eye Gp-Engine | 1 |
2p6155 Pan Gp-Oil
| 2P***55 | Pan Group-Oil; Oil Pan Group | 1 |
1w6588 Piston & Rod Gp-4 Required
| 1W***88 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
7n2887 Pulley Gp-Crankshaft
| 7N***87 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
7n2888 Pulley Gp-Fan
| 7N***88 | Pulley Group-Fan | 1 |
2p6226 Seal Gp-Crankshaft
| 2P***26 | Seal Group-Crankshaft; Seal Group-Crankshaft | 1 |
8n5857 Support Gp-Engine
| 8N***57 | Support Group-Engine | 1 |
7n9589 Trunnion Gp-Engine
| 7N***89 | Trunnion Group-Engine | 1 |
7n8024 Valve Mechanism Gp
| 7N***24 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Cooling System
8n4457 Base Gp-Oil Filter
| 8N***57 | Base Group-Oil Filter; Base Group-Engine Oil Filter | 1 |
2w6953 Cooler Gp-Filter Base & Engine Oil
| 2W***53 | Cooler Group-Filter Base & Eng Oil | 1 |
2w6954 Cooler Gp-Filter Base & Engine Oil
| 2W***54 | Cooler Group-Filter Base & Eng Oil | 1 |
2p4602 Fan Gp-Blower
| 2P***02 | Fan Group-Blower | 1 |
2p8164 Housing & Regulator Gp
| 2P***64 | Housing & Regulator Group; Regulator And Housing Group | 1 |
1w8904 Housing & Regulator Gp
| 1W***04 | Housing & Regulator Group; Housing And Regulator Group | 1 |
2w6779 Lines Gp-Water
| 2W***79 | Lines Group-Water | 1 |
8n4112 Lines Gp-Water
| 8N***12 | Lines Group-Water; -Bypass Relief | 1 |
7n5908 Pump Gp-Water
| 7N***08 | Pump Group-Water | 1 |
2w8002 Pump Gp-Water*R
| 2W***02 | Pump Group-Water; Water Pump (Assembly) | 1 |
5y1154 Radiator Gp-Part 1 Of 2
| 5Y***54 | Radiator Group | 1 |
5y1154 Radiator Gp-Part 2 Of 2
| 5Y***54 | Radiator Group | 1 |
Electrical System
9x4447 Starting Motor Gp-Electric
2y2299 Starting Motor Gp-Electric
6v5227 Starting Motor Gp-Electric*R
2y2300 Starting Motor Gp-Electric
8c3651 Starting Motor Gp-Electric
7s4090 Starting Motor Gp-Electric
5y1990 Starting Motor Gp-Electric
4n3181 Starting Motor Gp-Electric-24 Volt*R
3t6305 Starting Motor Gp-Electric
7n9720 Alternator Gp-Charging
6n9294 Alternator Gp-Charging*R
| 3T***52 | Alternator Group-Charging | 1 |
| 6N***94 | Alternator Group; (24-Volt, 35-Ampere) | 1 |
| 7N***20 | Alternator Group; Alternator Group (Robert Bosch) | 1 |
2y8950 Alternator Gp-Charging
| 2Y***50 | Alternator Group-Charging | 1 |
1005045 Alternator Gp-Charging-24 Volt, 50 Ampere
| 10***45 | Alternator Group-Charging; (Nippondenso) | 1 |
1005047 Alternator Gp-Charging- 24 Volt, 50 Ampere*R
| 10***45 | Alternator Group-Charging; (Nippondenso) | 1 |
| 10***46 | Alternator Group-Charging; -24-Volt, 50-Ampere | 1 |
| 10***47 | Alternator Group-Charging; -24-Volt, 50-Ampere | 1 |
3t1888 Alternator Gp-Charging
| 3T***88 | Alternator Group-Charging; Alternator Group Delco-Remy 24 Volt, 50 Ampere | 1 |
2y8310 Alternator Gp-Charging
| 2Y***10 | Alternator Group-Charging | 1 |
8n1084 Alternator Gp-Charging
| 5S***88 | Alternator Group-Charging | 1 |
| 7D***44 | Wire As-Alternator To Engine | 1 |
| 8N***84 | Alternator Group-Charging; Serial No. 22x272-Up And 23x331-Up | 1 |
9g9538 Alternator Gp-Charging
| 9G***38 | Alternator Group-Charging | 1 |
6t7223 Alternator Gp-Charging
| 6T***23 | Alternator Group-Charging; Alternator Group-Nippondenso -- 24 Volt, 50 Ampere | 1 |
5y1826 Alternator Gp
| 5Y***26 | Alternator Group-Charging | 1 |
3t6352 Alternator Gp-Charging
| 3T***52 | Alternator Group-Charging | 1 |
5y1700 Alternator Gp
| 5Y***00 | Alternator Group-Charging | 1 |
9g4574 Alternator Gp-Charging
| 9G***74 | Alternator Group-Charging; Alternator Group (Nippondenso) | 1 |
6n5468 Alternator Gp-Charging
| 6N***68 | Alternator Group-Charging | 1 |
1005046 Alternator Gp-Charging-24 Volt, 50 Ampere*R
| 10***46 | Alternator Group-Charging; -24-Volt, 50-Ampere | 1 |
5s9088 Alternator Gp-Charging*R
| 3T***88 | Alternator Group-Charging; Alternator Group Delco-Remy 24 Volt, 50 Ampere | 1 |
| 5S***88 | Alternator Group-Charging | 1 |
| 6T***23 | Alternator Group-Charging; Alternator Group-Nippondenso -- 24 Volt, 50 Ampere | 1 |
5y1991 Alternator Gp-Charging
| 2P***96 | Vee Belt Set (Consists Of 2 Belts); Vee Belt Set (Consists Of 2 Belts) | 1 |
| 5Y***91 | Alternator Group-Charging | 1 |
| 6N***68 | Alternator Group-Charging | 1 |
5y2080 Battery & Wiring Gp-Part 2 Of 3
| 5Y***80 | Battery & Wiring Group | 1 |
5y2080 Battery & Wiring Gp-Part 3 Of 3
| 5Y***80 | Battery & Wiring Group | 1 |
5y2080 Battery & Wiring Gp-Part 1 Of 3
| 5Y***80 | Battery & Wiring Group | 1 |
2s4783 Lamp Gp-Flood
| 2S***83 | Lamp Group; (Floodlight) | 1 |
1m1882 Lamp Gp-Flood
| 1M***82 | Lamp Group | 1 |
2y4477 Lamp Gp-Flood
| 2Y***77 | Lamp Group-Flood | 1 |
4v2043 Lighting Gp-4 Lamp
| 4V***43 | Lighting Group-4 Lamp | 1 |
2y6746 Lighting Gp-4 Lamp
3v3164 Lighting Gp-4 Lamp
| 3V***64 | Lighting Group-4 Lamp | 1 |
7c3122 Solenoid Gp-Control
5y2075 Start Gp-Neutral
7n0718 Switch As-Disconnect
| 7N***18 | Switch As-Disconnect; -Battery-Ground Level | 1 |
9w1077 Switch As-Start
| 9W***77 | Switch As-Start; -Heat-Remote | 1 |
6w1189 Switch Gp-Slave
| 6W***89 | Switch Group-Slave; Slave Switch Group | 1 |
8e7943 Wiring Gp-Sensor
| 8E***43 | Wiring Group-Sensor | 1 |
Engine Arrangement
5y1977 Engine Ar-Part 1 Of 2
| 1N***36 | Camshaft Group-Single; Single Camshaft Group | 1 |
| 1N***74 | Fumes Disposal Group | 1 |
| 1P***44 | Breather Group | 1 |
5y1977 Engine Ar-Part 2 Of 2
| 1W***58 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
| 1W***30 | Turbocharger Group | 1 |
| 1W***88 | Piston & Rod Group; Connecting Rod And Piston Group | 4 |
Final Drive
5y1408 Final Drive Gp-Part 2 Of 3
| 5Y***08 | Final Drive Group | 1 |
5y1408 Final Drive Gp-Part 1 Of 3
| 5Y***08 | Final Drive Group | 1 |
5y1408 Final Drive Gp-Part 3 Of 3
| 5Y***08 | Final Drive Group | 1 |
Frame And Body
2y7496 Drawbar Gp-Swinging
| 2Y***96 | Drawbar Group | 1 |
9k8513 Drawbar Gp-Swinging
| 9K***13 | Drawbar Group-Swinging | 1 |
5v7825 Fender Gp
| 5V***25 | Fender Group | 1 |
5y1218 Fender Gp
| 5Y***18 | Fender Group | 1 |
3v2873 Floorplate Gp
| 3V***73 | Floorplate Group | 1 |
5v7824 Frame Gp
| 5V***24 | Frame Group | 1 |
5y1219 Guard Gp-Crankcase
| 5Y***19 | Guard Group-Crankcase | 1 |
5y1242 Guard Gp-Radiator-(Hinged)
| 5Y***42 | Guard Group-Radiator | 1 |
5y1226 Guard Gp-Radiator
| 5Y***26 | Guard Group-Radiator | 1 |
5y1227 Hood & Dash Gp-Part 2 Of 2
| 5Y***27 | Hood & Dash Group | 1 |
5y1227 Hood & Dash Gp-Part 1 Of 2
| 5Y***27 | Hood & Dash Group | 1 |
6k4438 Hook Gp-Front Pull
| 6K***38 | Hook Group-Front Pull | 1 |
Fuel System
2w0262 Camshaft As
| 2W***62 | Camshaft As | 1 |
9g8847 Cap Gp-Protection-Fuel Tank
| 9G***47 | Cap Group-Protection; Fuel Tank Protection Cap Group | 1 |
9v8913 Control Gp-Decelerator
| 9V***13 | Control Group-Decelerator | 1 |
9w4639 Control Gp-Governor-Part 1 Of 2
| 9W***39 | Control Group-Governor | 1 |
9w4639 Control Gp-Governor-Part 2 Of 2
| 9W***39 | Control Group-Governor | 1 |
1w9532 Filter Gp-Fuel
| 1W***32 | Filter Group-Fuel; Filter Gp-Secondary Fuel | 1 |
2w5444 Governor & Fuel Injection Pump Gp
| 2W***44 | Gov & Fuel Inj Pump Group | 1 |
1w8730 Governor Gp
| 1W***30 | Governor Group | 1 |
5y1757 Guard Gp-Lines
| 5Y***57 | Guard Group-Lines | 1 |
9w4785 Lines Gp-Fuel-Part 1 Of 2
| 9W***85 | Lines Group-Fuel | 1 |
9w4785 Lines Gp-Fuel-Part 2 Of 2
| 9W***85 | Lines Group-Fuel | 1 |
8n8170 Lines Gp-Fuel Injection
| 8N***70 | Lines Group-Fuel Injection | 1 |
8n2772 Lines Gp-Fuel Injection
| 8N***72 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
7c5160 Lines Gp-Fuel Injection
| 7C***60 | Lines Group-Fuel Injection | 1 |
4p9950 Lines Gp-Fuel Injection
| 4P***50 | Lines Group-Fuel Injection | 1 |
7c5170 Lines Gp-Fuel Injection
| 7C***70 | Lines Group-Fuel Injection | 1 |
4p9960 Lines Gp-Fuel Injection
| 4P***60 | Lines Group-Fuel Injection | 1 |
2w0263 Pump Gp-Fuel Injection
| 2W***63 | Pump Group-Fuel Injection | 1 |
1w6539 Pump Gp-Fuel Injection
| 1W***39 | Pump Group-Fuel Injection | 1 |
8n5251 Pump Gp-Fuel Priming & Primary Filter
| 8N***51 | Pump Group-Fuel Prime & Prim Filter | 1 |
8n3365 Pump Gp-Fuel Priming
| 8N***65 | Pump Group-Fuel Priming; Priming Pump-Fuel & Primary Filter | 1 |
7c1123 Pump Gp-Fuel Priming & Primary Filter
1w1695 Pump Gp-Fuel Transfer*R
| 1W***95 | Pump Group-Fuel Transfer | 1 |
2w4160 Pump Gp-Fuel Transfer (With Mounting)
| 2W***60 | Pump Group-Fuel Transfer & Mtg; Fuel Transfer Pump And Mounting Group | 1 |
5y2170 Tank Gp-Fuel
| 5Y***70 | Tank Group-Fuel | 1 |
8n7276 Torque Control Gp
| 8N***76 | Torque Control Group | 1 |
Hydraulic System
7g3813 Pump Gp-Gear-Two Section
| 7G***13 | Oil Pump Group; (Gear) | 1 |
3g2806 Cartridge Gp*R
| 3G***06 | Cartridge Group | 1 |
5y1512 Control Ar-Hydraulic
| 10***28 | Cooler & Lines Group | 1 |
| 1U***98 | Tank Group-Hydraulic | 1 |
| 2Y***08 | Lines Group-Pump; Pump Lines Group | 1 |
4v0441 Control Gp-Hydraulic Hand-Part 1 Of 2
| 4V***41 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
4v0441 Control Gp-Hydraulic Hand-Part 2 Of 2
| 4V***41 | Control Group-Hydraulic Hand; Hydraulic Hand Control Group | 1 |
1038928 Cooler & Lines Gp
| 10***28 | Cooler & Lines Group | 1 |
4t4574 Cylinder Gp-Lift-2 Required (Chg. G00 & G01)
| 4T***74 | Cylinder Group-Lift; Bulldozer Lift Cylinder Group | 1 |
3s7406 Filter Gp
| 3S***06 | Filter Group | 1 |
2y5200 Filter Gp-Hydraulic Oil
| 2Y***00 | Filter Group-Hydraulic | 1 |
7v6555 Guard Gp-Lines
| 7V***55 | Guard Group-Lines; Pump Lines Guard Group | 1 |
2y9777 Lines Gp-Attachment
| 2Y***77 | Lines Group-Attachment | 1 |
3v0076 Lines Gp-Attachment
| 3V***76 | Lines Group-Attachment; Lines Group -- Attachment | 1 |
5y1361 Lines Gp-Dozer
| 5Y***61 | Lines Group-Bulldozer | 1 |
3v3125 Lines Gp-Pump-Part 1 Of 2
| 3V***25 | Lines Group-Pump | 1 |
1072252 Lines Gp-Pump
| 10***52 | Lines Group-Pump | 1 |
2y8208 Lines Gp-Pump-3 Valve
| 2Y***08 | Lines Group-Pump; Pump Lines Group | 1 |
3v3125 Lines Gp-Pump-Part 2 Of 2
| 3V***25 | Lines Group-Pump | 1 |
3v6266 Lines Gp-Rear-3 Valve
| 3V***66 | Lines Group-Rear; Rear Attachment Lines Group-N0. 3 Valve. | 1 |
3v6264 Lines Gp-Rear-1 Valve
| 3V***64 | Lines Group-Rear Attachment; Rear Attachment Lines Group-No. 1 Valve. | 1 |
8v2005 Lines Gp-Return & Filter
| 8V***05 | Lines Group-Return & Filter; Return And Filter Lines Group | 1 |
3v5969 Mounting Gp-Hydraulic Tank
| 3V***69 | Mounting Group-Hydraulic Tank; Hydraulic Tank And Mounting Group | 1 |
3v2893 Mounting Gp-Valve
| 3V***93 | Mounting Group-Valve; Implement Control Valve Mounting Group | 1 |
9j5082 Pump Gp-Vane
| 9J***82 | Pump Group-Vane | 1 |
8j8483 Pump Gp-Vane-Single
| 8J***83 | Pump Group-Vane; Pump And Mounting Group | 1 |
9m8669 Screen Gp-Magnetic
| 9M***69 | Screen Group-Magnetic; -Differential Lock | 1 |
1u2798 Tank Gp-Hydraulic-Part 2 Of 2
| 1U***98 | Tank Group-Hydraulic | 1 |
1u2798 Tank Gp-Hydraulic-Part 1 Of 2
| 1U***98 | Tank Group-Hydraulic | 1 |
4t0911 Valve Gp-Bank-3
| 4T***11 | Valve Group-Bank 3; Valve Group-3 Bank | 1 |
8j9471 Valve Gp-Check & Relief
| 8J***71 | Valve Group-Check; -Lift Cylinder Circuit | 1 |
4t0484 Valve Gp-Control
| 4T***84 | Valve Group-Control; (Lift) | 1 |
9j0718 Valve Gp-Control
| 9J***18 | Valve Group-Control; (Tilt) | 1 |
3g2705 Valve Gp-Relief-Pilot Operated
| 3G***05 | Valve Group-Relief | 1 |
Implements
2j1136 Blade Gp
| 2J***36 | Blade Group | 1 |
8j6634 Brace Gp
| 8J***34 | Brace Group | 1 |
2y4043 Bulldozer Ar-Angling
| 2J***36 | Blade Group | 1 |
| 2Y***43 | Bulldozer Ar-Angling | 1 |
| 2Y***90 | Plate-Serial Number; (Bulldozer) | 1 |
2y9139 Bulldozer Ar-Angling
| 2J***36 | Blade Group | 1 |
| 2Y***39 | Bulldozer Ar-Angling | 1 |
| 2Y***90 | Plate-Serial Number; (Bulldozer) | 1 |
5j7379 Frame Gp
| 5J***79 | Frame Group | 1 |
5k1282 Hitch Gp
| 5K***82 | Hitch Group | 1 |
6j8135 Mounting Gp-Cylinder
| 6J***35 | Mounting Group-Cylinder; Lift Cylinder Mounting Group | 1 |
9j2724 Trunnion Gp
| 9J***24 | Trunnion Group; Trunnion Group--Bulldozer | 1 |
Lubrication System
1p4244 Breather Gp
| 1P***44 | Breather Group | 1 |
2p6855 Filler Gp-Oil
| 2P***55 | Filler Group-Oil | 1 |
1n4874 Fumes Disposal Gp
| 1N***74 | Fumes Disposal Group | 1 |
2p6491 Gauge Gp-Oil Level (Dipstick)
| 2P***91 | Gauge Group-Oil Level (Dipstick) | 1 |
2p6512 Lines Gp-Engine Oil
| 2P***12 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
6n2642 Pump Gp-Engine Oil
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 1P***46 | Washer-Hard; (10.2x35x6-mm Thk) | 1 |
| 4W***48 | Pump Group-Engine Oil; Pump Gp-Engine Oil Gear | 1 |
2p1784 Pump Gp-Engine Oil
| 2P***84 | Pump Group-Engine Oil; Engine Oil Pump Group | 1 |
4w2448 Pump Gp-Engine Oil*R
| 4W***48 | Pump Group-Engine Oil; Pump Gp-Engine Oil Gear | 1 |
4p4020 Pump Gp-Engine Oil
| 4P***20 | Pump Group-Engine Oil; Pump Group-Engine Oil | 1 |
6i1346 Pump Gp-Engine Oil*R
| 6I***46 | Pump Group-Engine Oil | 1 |
Operator Station
4v2259 Handrail Gp-Cab
| 4V***59 | Handrail Group; Cab Handrail Group | 1 |
9g8848 Guard Gp-Vandalism
| 9G***48 | Vandalism Guard Group | 1 |
9p3788 Blower As
| 9P***88 | Blower As | 1 |
9g7478 Control Gp-Washer & Wiper
| 9G***78 | Control Group-Washer & Wiper; Washer And Wiper Control Group | 1 |
3t0103 Control Gp-Washer & Wiper
| 3T***03 | Control Group-Washer & Wiper | 1 |
7v9264 Cover Gp-Rops
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 6 |
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 4 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
6w2520 Cushion As-Arm-Lh
| 6W***20 | Cushion As-Arm | 1 |
6w2519 Cushion As-Arm-Rh
| 6W***19 | Cushion As-Arm | 1 |
8m7892 Gauge As-Ammeter
| 8M***92 | Gauge As-Ammeter; (Ammeter) | 1 |
7v5352 Gauge Gp
| 7V***52 | Gauge Group | 1 |
4v0025 Handle Gp-Assist
| 4V***25 | Handle Group-Assist | 1 |
4v8015 Latch Gp-(Door Hold Back)
| 4V***15 | Latch Group; Latch Group (Door Hold Back) | 1 |
8p2151 Liner Gp-Cab-Sound Supression
| 8P***51 | Liner Group-Cab; Liner Gp-Cab-Sound Suppression | 1 |
8p4957 Meter Gp-Hour
| 8P***57 | Meter Group-Hour | 1 |
9p9392 Mirror Gp-Rear View
| 9P***92 | Mirror Group; -Open Rops-Rops | 1 |
8v3095 Mounting Gp-Rops
| 8V***95 | Mounting Group-Rops | 1 |
7v5331 Mounting Gp-Rops
| 7V***31 | Mounting Group-Rops; Roll-Over Protective System Mounting Group | 1 |
9p5089 Pressurizer Gp
| 9P***89 | Pressurizer Group | 1 |
9g8298 Pressurizer Gp-Cab-Part 2 Of 3
| 9G***98 | Pressurizer Group-Cab; Cab Pressurizer Group | 1 |
9g8298 Pressurizer Gp-Cab-Part 1 Of 3
| 9G***98 | Pressurizer Group-Cab; Cab Pressurizer Group | 1 |
9g8298 Pressurizer Gp-Cab-Part 3 Of 3
| 9G***98 | Pressurizer Group-Cab; Cab Pressurizer Group | 1 |
8v7164 Rops Ar-Enclosed
| 4V***59 | Handrail Group; Cab Handrail Group | 1 |
| 4V***15 | Latch Group; Latch Group (Door Hold Back) | 1 |
| 7V***45 | Mounting Group-Cab; Cab Mounting Group | 1 |
2y7895 Rops Ar
| 2Y***95 | Rops Ar | 1 |
| 7V***31 | Mounting Group-Rops; Roll-Over Protective System Mounting Group | 1 |
| 8V***95 | Mounting Group-Rops | 1 |
2y7894 Rops Ar-Canopy
| 2Y***94 | Rops Ar | 1 |
| 7V***31 | Mounting Group-Rops; Roll-Over Protective System Mounting Group | 1 |
| 8V***95 | Mounting Group-Rops | 1 |
8v3192 Rops Ar-Enclosed
| 8V***92 | Rops Ar; Roll-Over Protection Arrangement | 1 |
| 8V***33 | Rops Group; Roll-Over Protective System Group | 1 |
| 8V***34 | Wiper & Washer Group; Washer And Wiper Group | 1 |
8v7933 Rops Gp-Part 2 Of 3
| 8V***33 | Rops Group; Roll-Over Protective System Group | 1 |
8v7933 Rops Gp-Part 3 Of 3
| 8V***33 | Rops Group; Roll-Over Protective System Group | 1 |
8v7933 Rops Gp-Part 1 Of 3
| 8V***33 | Rops Group; Roll-Over Protective System Group | 1 |
8v3191 Rops Gp
| 8V***91 | Rops Group; Roll-Over Protective System Group | 1 |
2y9523 Seat & Support Gp-Part 3 Of 3
| 2Y***23 | Seat & Support Group | 1 |
2y9523 Seat & Support Gp-Part 2 Of 3
| 2Y***23 | Seat & Support Group | 1 |
2y9523 Seat & Support Gp-Part 1 Of 3
| 2Y***23 | Seat & Support Group | 1 |
2y4251 Seat As
| 2Y***51 | Seat As | 1 |
2y5468 Seat Belt Gp
| 2Y***68 | Seat Belt Group | 1 |
8y4037 Seat Belt Gp
| 8Y***37 | Seat Belt Group | 1 |
8y4029 Seat Belt Gp
| 8Y***29 | Seat Belt Group | 1 |
9c7773 Seat Gp
| 9C***73 | Seat Group | 1 |
5y2094 Seat Gp-Adjustable
| 5Y***94 | Seat Group-Adjustable | 1 |
9c3696 Seat Gp
| 9C***96 | Seat Group-Suspension | 1 |
| 9C***61 | Suspension Group-Seat | 1 |
| 9C***73 | Seat Group | 1 |
9k0682 Shaft & Link As
| 9K***82 | Shaft & Link As | 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 |
5y2571 Tachometer Gp-Electric
| 5Y***71 | Tachometer Group-Electric | 1 |
8e7968 Tachometer Gp-Electric
| 8E***68 | Tachometer Group-Electric | 1 |
6t5008 Window As-Sliding
| 6T***08 | Window Group-Cab; (Rear Sliding) | 1 |
8v7934 Wiper & Washer Gp
| 8V***34 | Wiper & Washer Group; Washer And Wiper Group | 1 |
6t7295 Wiper Gp
| 6T***95 | Wiper Group | 1 |
3t0174 Wiper Gp
| 3T***74 | Wiper Group | 1 |
Service Equipment And Supplies
8f9866 Grease Gun As
| 8F***66 | Grease Gun As | 1 |
Name Plates & Films-Part 1 Of 2
| 1P***07 | Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation | 4 |
| 3N***90 | Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine | 1 |
| 4B***58 | Screw (Identification Plate) Mounting | 10 |
Name Plates & Films-Part 2 Of 2
| 7X***44 | Film; (Instruction) (Tie Down) (To Front Tie Down Eyes) | 10 |
| 9X***08 | Film-Caterpillar | 1 |
| 9X***66 | Film-D4e | 2 |
2y2578 Tool Gp-Hand
| 2Y***78 | Tool Group-Hand | 1 |
Steering And Braking System
9v7095 Brake Gp-Steering-Part 1 Of 2
| 9V***95 | Brake Group-Steering | 1 |
9v7095 Brake Gp-Steering-Part 2 Of 2
| 9V***95 | Brake Group-Steering | 1 |
3v3132 Case Gp-Steering Clutch-Part 1 Of 2
| 3V***32 | Case Group-Steering Clutch | 1 |
3v3132 Case Gp-Steering Clutch-Part 2 Of 2
| 3V***32 | Case Group-Steering Clutch | 1 |
3v3183 Clutch Gp-Steering
| 3V***83 | Clutch Group-Steering | 1 |
8v9393 Control Gp-Steering Clutch-Part 1 Of 2
| 8V***93 | Control Group-Steering Clutch | 1 |
8v9393 Control Gp-Steering Clutch-Part 2 Of 2
| 8V***93 | Control Group-Steering Clutch | 1 |
3v3126 Filler Gp-Power Train Oil
| 3V***26 | Filler Group-Power Train Oil | 1 |
8v9729 Valve Gp-Control-Steering Clutch
| 8V***29 | Valve Group-Control | 1 |
Transmission
3v3123 Case Gp-Transmission
| 3V***23 | Case Group-Transmission | 1 |
3v3131 Clutch Gp-Flywheel-Part 2 Of 3
| 3V***31 | Clutch Group-Flywheel | 1 |
3v3131 Clutch Gp-Flywheel-Part 1 Of 3
| 3V***31 | Clutch Group-Flywheel | 1 |
3v3131 Clutch Gp-Flywheel-Part 3 Of 3
| 3V***31 | Clutch Group-Flywheel | 1 |
1072469 Clutch Gp-Flywheel-Part 2 Of 2
| 10***69 | Clutch Group-Flywheel | 1 |
1072469 Clutch Gp-Flywheel-Part 1 Of 2
| 10***69 | Clutch Group-Flywheel | 1 |
7v8649 Control Gp-Flywheel Clutch
| 7V***49 | Control Group-Flywheel Clutch | 1 |
3v0638 Control Gp-Gearshift-Part 1 Of 2
| 3V***38 | Control Group-Gearshift | 1 |
3v0638 Control Gp-Gearshift-Part 2 Of 2
| 3V***38 | Control Group-Gearshift | 1 |
3v3127 Filler Gp-Flywheel Clutch Oil
| 3V***27 | Filler Group-Flywheel Clutch Oil | 1 |
4v1990 Filler Gp-Transmission Oil
| 4V***90 | Filler Group-Transmission Oil | 1 |
5s1601 Pump Gp-Scavenge Oil
| 5S***01 | Pump Group-Scavenge Oil | 1 |
2y7346 Drive Shaft Gp
| 2Y***46 | Shaft Group-Drive | 1 |
5y1233 Transmission Ar-Direct Drive
| 3V***38 | Control Group-Gearshift | 1 |
| 3V***23 | Case Group-Transmission | 1 |
| 4V***90 | Filler Group-Transmission Oil | 1 |
5y1232 Transmission Gp-Part 2 Of 2
| 5Y***32 | Transmission Group | 1 |
5y1232 Transmission Gp-Part 1 Of 2
| 5Y***32 | Transmission Group | 1 |
5k5008 Universal Joint Gp
| 5K***08 | Universal Joint Group | 1 |
Undercarriage
5v7755 Conversion Ar
| 5V***41 | Support Group-Fender; Non-Rops Front Fender Support Group | 1 |
| 5V***46 | Support Group-Fender; Front Non Rops Fender Support Group | 1 |
| 5V***55 | Conversion Ar | 1 |
2y7106 Cover Gp
| 2Y***06 | Cover Group | 1 |
5y1243 Frame Gp-Track Roller
| 5Y***43 | Frame Group-Track Roller | 1 |
7k3303 Frame Gp-Track Roller
| 7K***03 | Frame Group-Track Roller | 1 |
3v3140 Guard Gp-Recoil Mechanism
| 3V***40 | Guard Group-Recoil Mechanism | 1 |
2v3857 Idler Gp-Front
| 2V***57 | Idler Group-Front | 1 |
2y9838 Idler Gp-Front-Part 2 Of 2
| 2Y***38 | Idler Group-Front | 1 |
2y9838 Idler Gp-Front-Part 1 Of 2
| 2Y***38 | Idler Group-Front | 1 |
5y2230 Kit-Conversion
| 1V***03 | Link-Track Master; (Pin End, Rh) | 1 |
| 1V***04 | Link-Track Master; (Pin End, Lh) | 1 |
| 1V***05 | Link (Master) (R. H. - Bushing End) | 1 |
1v7072 Link As-Track
| 1V***72 | Link As-Track; Link Assembly | 1 |
1v4599 Link As-Track
| 1V***99 | Link As-Track | 1 |
5y2235 Pin & Bushing Gp
| 5Y***35 | Pin & Bushing Group | 1 |
| 7K***18 | Washer (Seal) | 144 |
| 9K***60 | Pin-Track Link | 36 |
9p7783 Roller Gp-Single Flange
| 9P***83 | Roller Group-Single Flange; Track Roller Group-Single Flange | 1 |
6k9880 Roller Gp-Track Carrier-2 Required
| 6K***80 | Roller Group-Track Carrier; (Upper) | 1 |
9p7787 Roller Gp-Track Double Flange
| 9P***87 | Roller Group-Track Double Flange; Track Roller Group-Double Flange | 1 |
2y9612 Track Roller Gp-Double Flange-6 Required
| 2Y***12 | Roller Group-Track-Double Flange | 1 |
2y9611 Track Roller Gp-Single Flange-4 Required
| 2Y***11 | Roller Group-Track-Single Flange | 1 |
5y2313 Seal Set
| 1V***68 | Seal Assembly | 72 |
| 5Y***13 | Seal Set | 1 |
| 6Y***73 | Plug; (Clear) | 36 |
4k5207 Spring Gp-Equalizer
| 4K***07 | Spring Group-Equalizer | 1 |
5v7141 Support Gp-Fender
| 5V***41 | Support Group-Fender; Non-Rops Front Fender Support Group | 1 |
5v7146 Support Gp-Fender
| 5V***46 | Support Group-Fender; Front Non Rops Fender Support Group | 1 |
1v4625 Track Gp-2 Required
| 1M***08 | Nut-Track | 140 |
| 1V***99 | Link As-Track | 1 |
| 1V***25 | Track Group | 1 |
1v5657 Track Gp-2 Required
| 1M***08 | Nut-Track | 140 |
| 1V***99 | Link As-Track | 1 |
| 1V***15 | Shoe-Grouser Track | 35 |
1v4621 Track Gp-2 Required
| 1M***08 | Nut-Track | 140 |
| 1V***99 | Link As-Track | 1 |
| 1V***21 | Track Group | 1 |
D4E SR serial number reference
On this era of D4 crawler tractor, the machine PIN plate is riveted to the frame on the left side near the engine compartment/cab area - separate from the engine's own serial plate, which sits on the right-rear of the cylinder block, and separate again from any blade or ripper attachment's own serial plate. The prefix is the three characters ahead of the sequential digits (e.g., in 2DJ00829, "2DJ" is the prefix and "00829" is the unit number within that production run); the prefix identifies the specific model/configuration build, and the digits that follow pin down where in that run a given unit was built.
| Prefix | Identifies | Notes |
|---|---|---|
| 2DJ | D4E SR track-type tractor (Direct Drive transmission) | PIN prefix tied specifically to the D4E SR nameplate, separate from the plain D4E and D4E SA/LGP lines, which carry their own prefixes. Runs from 2DJ00001 up through the 2DJ03000-series, with in-production running changes (transmission case, gearshift control, steering clutch, battery wiring) clustered around 2DJ00829-00980 and again near 2DJ03168-03196; a broader parts-book break also falls around 2DJ01400. Powered by the Cat 3304 diesel with a Direct Drive transmission arrangement. Cat's own transmission-arrangement documentation for this unit labels it a "Super Rural" configuration, which may be the origin of the SR suffix, though that reading has no outside corroboration - treat as likely, not certain. Exact calendar years for this prefix are not documented; the wider D4E platform dates to the late 1970s through the mid-1980s, with related SA-badged units continuing into the early 1990s, so confirm exact build year with your dealer using the full serial. |
Frequently asked questions
What engine does the Caterpillar D4E SR use?
The D4E SR runs the Caterpillar 3304 diesel: naturally aspirated, direct-injected, and mechanically governed, with no electronic engine controls. Gross flywheel power is rated at about 75 hp (56 kW).
What is the operating weight of the Caterpillar D4E SR?
Operating weight in standard SR trim is about 8,820 kg (19,445 lb) with blade attached. Actual weight varies slightly with blade, winch, and canopy or cab options.
What replaced the Caterpillar D4E SR?
Caterpillar carried the D4 nameplate into the later D4G-generation dozers and eventually the D4H series, which moved beyond the D4E's mechanically governed engine and clutch/brake steering to newer driveline and steering technology.
What D4E SR owners discuss
What engine powers the D4E SR, and how does it perform in real-world use?
The D4E SR runs the Cat 3304 diesel: naturally aspirated, direct injection, mechanically governed with no electronic controls. Rated output lands around 59.7 kW (80 gross hp) at roughly 1900 rpm for direct-drive operation. Operators describe it as a simple engine to keep running as long as the mechanical injection pump and cooling system get regular attention. It does not have the flexible power band of later turbocharged Cat engines, so operators plan gear selection accordingly on grade.
How tough is the powershift transmission, and what actually kills it?
The powershift and steering clutches on the D4E SR have a reputation for being hard to kill under normal service. What takes them out is contamination, not hours: water or dirt getting into the transmission oil turns the fluid milky and emulsified instead of separating out, and clutch linings that sit soaked in water-contaminated oil can delaminate from the discs, sometimes only showing up as slipping well after the machine goes back to work. Check fluid color and smell at every service, not just level. Steering-clutch slipping is a controllability issue -- have your dealer verify clutch and brake condition before returning the machine to grade work.
Is some blade cylinder drift on the D4E SR normal, or does it mean trouble?
A little settling of the blade under a static load is normal on these hydraulic circuits. What operators flag as a problem is a blade that visibly creeps down within a minute or two with no load, or one that slows noticeably partway through a lift stroke. That points to worn piston seals or a leaking piston/relief valve inside the cylinder rather than a system-wide pump issue. A common field check: raise the blade, hold position with a stand or another machine, cap the return line, and watch for drift.
What undercarriage wear shows up most on the D4E SR, and where is the real weak point?
Owners and techs commonly point to the final drives as the component most likely to cause grief on this machine. Planetary oil condition and duo-cone seal integrity matter more here than on larger dozers, since a small final drive has less margin for neglect. Check planetary compartment oil for discoloration or metal at every interval, and keep debris from packing around the final drive housings -- caked-in dirt can push a seal out of position and start a leak. Track, roller, and bushing wear otherwise follow the usual pattern for a small dozer: string-line the grousers periodically and watch for excess play at the idler.
What electrical issues come up on the D4E SR? Does it have sensor-related faults like newer machines?
No. The D4E SR predates electronic engine controls, so there is no engine control module and no sensor fault codes to chase. Electrical complaints on this era of machine are almost always basic 24-volt system items: starter brush dust causing slow cranking or a battery drain, corroded or loose battery and ground cable connections causing weak or no charge, and a tired regulator or diode pack if the alternator will not charge at all. Gauges are mechanical or direct-reading, so a bad gauge reading usually traces back to a wiring or sending-unit connection rather than electronics.
Any known quirks with the injection pump or governor, especially after the machine has been sitting?
Yes. The 3304 mechanical injection pump is calibrated to tight tolerances, and after long storage or with old fuel, gummy fuel-breakdown deposits (often described as varnish or asphaltine buildup) can accumulate in the governor housing and make the speed control sticky or hard to return to idle. The control rack can also stick, most often in the shut-off position so the engine will not start, but it can occasionally stick at full fuel, which lets the engine run away and become hard to shut down. A stuck-throttle or runaway condition is a safety issue -- have your dealer verify governor and control rack operation before putting a hard-starting or surging machine back to work.
What should I check before buying a used D4E SR?
Pull a final drive and planetary oil sample and look for discoloration or metal, not just check the level. Load-test the blade hydraulics by raising and holding rather than just cycling it empty, watching for drift. Check transmission fluid color and smell for water or dirt contamination, and feel for hesitation shifting between forward and reverse. Inspect the blade, cutting edge, and trunnion pins for weld repair or plate lines that suggest prior damage. Walk the undercarriage for track and bushing wear and idler play, and check for oil blow-by at the engine breather. Get service records if they exist, and bring a second set of eyes, ideally someone familiar with mechanically governed Cat engines, along for the inspection.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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