Caterpillararticulated dump truckarticulated truck
Caterpillar D250B
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar D250B is a roughly 22.68-tonne (50,000 lb) payload-class articulated dump truck built in the mid-1980s, Caterpillar's first factory-badged version of the DJB-designed articulated hauler platform. Power comes from a Caterpillar 3306 TA six-cylinder diesel, turbocharged and air-to-air aftercooled, mechanically (jerk-pump) governed with no electronic engine control, rated at roughly 163 kW (218.6 hp) gross. Drive runs through a five-speed powershift transmission to a 4WD driveline with wet, oil-cooled multi-disc brakes at all wheel ends and center-pivot articulated steering. Empty operating weight is about 17,963 kg (39,601.7 lb), rated payload about 22,680 kg (50,000.9 lb), for a gross operating weight near 40,643 kg (89,602.5 lb), carried on 20.5x25 radial tires with a heaped body capacity of roughly 14-14.4 m3 (18.3-18.4 yd3). Cat sold the D250B for a short run, around 1985-1986, as the direct successor to DJB's own D250, before the line moved on to the D250D and later D250E / D250E Series II generations.
The D250B sits at the handoff point where Caterpillar took over a British-engineered (DJB) hauler design and applied its own branding, engine, and dealer support, years before it bought DJB Engineering outright. Later D250-family trucks changed engines and updated running gear as Caterpillar refined the platform through the D250D and D250E generations, so specs, fluid types, and parts commonality should never be carried across those letter changes without checking the specific model. In the used and parts market the D250B is a low-volume, mid-1980s survivor: most working units are in quarries, landfills, and remote earthmoving fleets where the mechanical 3306's simplicity, with no electronics to fail, is valued over fuel economy. Parts demand centers on wet-brake, final-drive, and powershift-transmission wear items plus 3306 mechanical fuel-system and turbocharger components. Buyers should confirm serial prefix before ordering anything driveline- or engine-related, since the D250B does not share its parts book with the later D250D/E family.
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 D250B specifications
Engine
| Engine model | Cat 3306 turbocharged, water-cooled diesel, inline-6 (TA/DITA variants carried over from the DJB-era design before Caterpillar's 1996 buyout of DJB) |
| Cylinders | 6, inline |
| Displacement | 10.5 L (640.8 cu in) |
| Gross power | 218.6-235 hp (163-175 kW) gross; figure varies by rating source/configuration |
| Net power | Not separately published for this model in available sources |
| Emissions tier | Predates EPA/EU emissions tier regulation; built in the DJB-to-Cat transition era (mid-1980s to mid-1990s), well before Tier 1 (1996) |
Weights
| Unladen (empty) weight | 39,601.7 lb (17,963 kg) |
| Rated payload | 50,000.9 lb (22,680 kg) |
| Gross (loaded) weight | 89,602.5 lb (40,643 kg) |
| Ground pressure | Not published for this model |
Dimensions
| Overall length (transport) | 31.5 ft (9.6 m) |
| Overall width (transport) | 8.2-8.3 ft (2.5-2.53 m) |
| Overall height (transport) | 10.4-10.5 ft (3.18-3.2 m) |
| Wheelbase | 18.6-18.7 ft (5.7 m); some references cite 213 in (5.41 m) — varies by source/configuration |
| Dump (tailgate) height | 20.4-20.5 ft (6.23-6.25 m) |
| Ground clearance | Not published for this model |
Performance
| Maximum travel speed | 31.7 mph (51 kph) |
| Transmission gears | 5 forward, 1 reverse (reverse speed not separately published) |
| Drive/steering | 4WD, articulated steering, fixed rear axle, air brakes |
| Gradeability | Not published for this model |
Service capacities (summary)
| Fuel tank | 95.2 gal (360.3 L) |
| Tire size | 20.5x25 radials standard; some references cite 23.5-25 — varies by configuration |
| Engine oil | Approximately 27.5 L; not documented across multiple sources for this exact model — confirm with dealer before servicing |
| Cooling system | Not reliably documented for this exact model in available sources |
| Hydraulic system | Not published for this model in available sources |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D250B fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) — Cat 3306 NA diesel | 27.5 L (7.3 US gal) | Cat DEO (Diesel Engine Oil). SAE 15W-40 for normal/moderate ambient; drop to SAE 10W-30 in cold-climate starts. Follow the S-O-S oil-sampling interval, not a fixed hours figure, where the OMM allows it. |
| Cooling system | 63.6 L (16.8 US gal) | Cat coolant/antifreeze rated to about -38 C (-36 F), full-strength or premix per climate. Use Cat DEAC or Cat ELC per the coolant type already in the system — do not mix the two families. |
| Fuel tank | 360.3 L (95.2 US gal) | Diesel fuel, No. 2-D grade for normal service, No. 1-D in cold climates. |
| Transmission (powershift) | 40.8 L (10.8 US gal) | Cat TDTO (Transmission/Drive Train Oil). SAE 10W for cold-climate start-up, SAE 30 for normal/moderate ambient service. |
| Front axle differential & final drives (combined housing) | 27.3 L (7.2 US gal) | Cat TDTO, or Cat FDAO where the OMM calls for a dedicated final-drive/axle oil. GL-5-equivalent gear-oil viscosity band of 80W-90 for normal ambient. |
| Rear axle differential & final drives (combined housing) | 27.3 L (7.2 US gal) | Cat TDTO, or Cat FDAO where the OMM calls for a dedicated final-drive/axle oil. GL-5-equivalent gear-oil viscosity band of 80W-90 for normal ambient. |
| Hydraulic system (tank + circuit, steering/dump/implement) | 186.4 L (49.2 US gal) | Cat HYDO Advanced (or TDTO used as hydraulic fluid, per Cat's shared-fluid practice on machines of this vintage). SAE 15W-40 for normal/moderate ambient; lighter grade for cold-climate start-up. |
| Hydraulic brake system reservoir | 2.55-3.83 L (0.7-1.0 US gal) | Cat Advanced brake fluid, DOT 4 spec. |
| Grease points (pivot pins, articulation joint, U-joints, trailing/tandem axle) | Spec only — no reservoir capacity | Cat Multipurpose Grease (NLGI 2, EP), or Cat Ultra 5 Moly grease at high-load pin joints per the OMM's lubrication chart. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar D250B 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 D250B beyond the schedule
Predictive maintenance & fluid analysis
On a mechanical 3306 TA with no ECM, oil sampling is the only early-warning system available. Pull engine oil, powershift transmission oil, and wet-brake oil samples on a fixed hours schedule to track wear metals, soot, and coolant intrusion before a failure shows up in the field. Watch coolant corrosion-inhibitor concentration closely on this water-cooled block; low inhibitor accelerates liner pitting. Track final-drive oil condition at all wheel ends, since these units typically run hard in quarry and landfill duty cycles where load and grade stress the driveline continuously.
Corrective & common repairs
Common D250B failures trace back to the articulation hitch, wet-brake discs, and the 3306's fuel system. Expect wear at the center-pivot bearings and steering-cylinder pins from constant articulation under load. Wet, oil-cooled brake discs glaze or wear thin in steep-grade, heavy-braking duty and need periodic inspection rather than waiting for a pedal complaint. On the jerk-pump mechanical injection system, check governor linkage and injector timing when power drops or fuel consumption climbs, since there is no fault code to flag it.
Overhaul & rebuild points
At major overhaul, the powershift transmission clutch packs and torque converter are the big-ticket items on a D250B pulling full-rated payloads daily. Wheel-end final drives and wet-brake stacks wear together and are usually rebuilt as a set. Turbocharger cartridge replacement is common on a mechanical 3306 TA once boost drops or oil consumption rises. Inspect the articulated frame casting and hitch pin bores for elongation before returning a rebuilt unit to heavy-cycle service; this is original DJB-derived structure, not a Caterpillar-designed frame.
Seasonal & environment servicing
Cold-weather starts on the mechanical 3306 TA depend on starting aids and correct-viscosity engine and hydraulic oil; the jerk-pump fuel system is unforgiving of gelled fuel, so switch to winter-grade diesel early. In hot, dusty quarry or landfill environments, the air-to-air aftercooler core and radiator fins clog fast and need frequent cleaning to hold rated power. Wet-brake oil breaks down faster under high-ambient, high-cycle braking, so shorten sample intervals in summer. Check tire pressure more often across seasonal swings given the load on the 20.5x25 radials.
D250B common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1P-2299 | Filter As-Fuel | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D250B fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Low Engine Oil Pressure lamp (red) | Engine oil pressure has dropped below the safe operating threshold | Worn oil pump, clogged suction screen, low oil level, or failed pressure switch | Stop engine immediately, check oil level and condition, verify pressure with a mechanical gauge before restarting |
| High Coolant Temperature lamp (red) | Engine coolant temperature has exceeded the safe operating range | Low coolant level, blocked radiator core, slipping or failed fan drive, faulty thermostat | Idle down, check coolant level once cooled, inspect radiator and fan drive, verify thermostat operation |
| Low Air Pressure warning lamp/buzzer | Air system pressure for brakes has dropped below minimum safe level | Air compressor fault, leaking lines or fittings, worn governor, moisture in air tank | Do not move truck until pressure builds to normal, inspect compressor, lines, and governor, drain air tanks |
| Alternator / Charging System lamp (red) | Charging system is not maintaining battery voltage | Failed alternator, broken or slipping drive belt, loose or corroded wiring connection | Check belt tension and condition, test alternator output, inspect battery cables and grounds |
| Transmission / Torque Converter Oil Temperature lamp | Power train oil temperature is above the normal operating range | Low transmission oil level, clogged oil cooler, prolonged converter stall, cooler bypass valve stuck | Reduce load and let temperature drop, check oil level, inspect cooler core and bypass valve |
| Parking Brake Applied lamp | Parking (secondary) brake is engaged | Operator applied park brake, or air/hydraulic release circuit fault holding brake on | Confirm park brake control position, check release circuit pressure if lamp stays on with control released |
| Air Filter Restriction indicator | Engine air intake restriction has reached the service limit | Dirty or clogged air filter element, collapsed intake hose | Inspect and clean or replace air filter element, check intake piping for damage or blockage |
| Hydraulic Oil Temperature lamp | Hydraulic system oil temperature is above normal operating range | Low hydraulic oil level, clogged hydraulic cooler, relief valve stuck open causing continuous bypass heat | Check oil level and cooler condition, inspect relief and bypass valves, allow system to cool before continued operation |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D250B attachments & work tools
Dump body and tailgate
The D250B carries a fixed rigid-frame dump body with a standard overhung tailgate, typical for this articulated-hauler size class. No ejector-body variant is documented for this model; the ejector option belongs to the larger 730/740-series trucks, not the D250B.
Body capacity extensions
Sideboard extensions and rear spill guards are the practical way to lift heaped capacity on this class of truck, roughly 11 m3 struck (14.4 yd3) up to about 14 m3 heaped (18.3 yd3). Model-specific literature for the D250B does not spell out board or guard options as factory line items, so treat this as class-level practice rather than a confirmed D250B option.
Tires
Standard fitment is 20.5x25 radial tires for the D250B. Bias-ply tires in the same size were also a common running alternative on trucks of this generation.
Cab and ROPS/FOPS structure
The D250B was offered with an operator structure meeting ROPS/FOPS requirements for the class, either as an open canopy or a fully enclosed heated cab depending on region and order. Exact cab-option coverage for this specific serial range is not confirmed in available literature.
Differential lock and traction
Cross-axle and inter-axle differential locks, engaged manually by the operator from the cab, are standard on Cat articulated trucks of the D250B generation. This is a mechanical, driver-actuated lock, not the automatic electronic traction control fitted to later Cat articulated-truck generations.
Service brakes and retarder
The D250B uses an oil-cooled multi-disc service brake arrangement with a separate park brake assembly, plus a transmission retarder operated from a column-mounted control to manage descent speed and reduce brake wear. Retarder detail here reflects truck-family practice rather than a confirmed check against this exact serial range.
Auxiliary chassis options
Options typical of this hauler generation include rock-ejector fittings for the tires, mud flap and fender guarding, and an add-on automatic lubrication kit for the articulation hitch and pivot points. None of these are confirmed as D250B-specific factory codes; they reflect standard practice across the D-series articulated-truck line and vary by configuration.
Work-tool coupler / attachment interface
The D250B is a haul truck, not a loader or excavator, so it carries no quick-coupler or interchangeable work-tool system. Attachment-style choices for this model are limited to body, tire, cab, and guarding configuration rather than buckets, forks, or other coupled implements.
All D250B assemblies by section
Every catalogued assembly group for the Caterpillar D250B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Attachments
Air Brake Lines - Tractor, T.U.V. Regulations
Air Conditioner Cab Trim Group
7g3483 Air Conditioner Group ---Part 1 Of 2 --- Type 1
| 7G***83 | Air Conditioner Group | 1 |
7g3484 Air Conditioner Gp-Part 2 Of 2
| 7G***84 | Air Conditioner Group | 1 |
7g3483 Air Conditioner Group ---Part 2 Of 2 ---Type 1
| 7G***83 | Air Conditioner Group | 1 |
7g3483 Air Conditioner Gp--Part 2of 2--Type 2
| 7G***83 | Air Conditioner Group | 1 |
7g3483 Air Conditioner Group ---Part 1 Of 2 ---Type 2
| 7G***83 | Air Conditioner Group | 1 |
7g3484 Air Conditioner Gp- Part 1 Of 2
| 7G***84 | Air Conditioner Group | 1 |
Air Conditioner Mounting Group
Air Conditioner Wiring Group
Air Conditioning Compressor Group - Part 1 Of 2
Air Conditioning Compressor Group - Part 2 Of 2
Air Conditioning Group (Part 1 Of 3)
Air Conditioning Group (Part 2 Of 3)
Air Conditioning Group (Part 3 Of 3)
Air Conditioning Lines Group
Back-Up Horn/Light
6u6473 Breather Group
| 6U***73 | Breather Group | 1 |
6u6474 Breather Group
| 6U***74 | Breather Group | 1 |
7u7608 Breather Gp.
| 7U***08 | Breather Group | 1 |
7u7611 Breather Gp.
| 7U***11 | Breather Group | 1 |
Cab Door Group T.U.V. Regulations
Fuel Tank Protection Cover Gp 5g3612
| 5G***12 | Cap Group-Protection; Fuel Filler Protection Cap Group | 1 |
Catalytic Converter Air Cleaner Group
Catalytic Converter Exhaust
7n4297 Clutch & Refrigerant Compressor Group
| 7N***97 | Clutch & Refrig Compressor Group | 1 |
7g3480 Condenser Group ---Part 1 Of 2
| 7G***80 | Condenser Group | 1 |
7g3480 Condenser Group --Part 2 Of 2
| 7G***80 | Condenser Group | 1 |
3p7759 Control Console Group -- Type 1
| 3P***59 | Console Group | 1 |
3p7759 Control Console Group -- Type 2
| 3P***59 | Console Group | 1 |
3p7756 Console Gp
| 3P***56 | Console Group-Return Air | 1 |
Control Group
Control Valve Group T.U.V. Regulations
9w8407 Converter Ar
| 9W***10 | Retarder & Torque Converter Group | 1 |
| 9W***05 | Covers Group-Shipping | 1 |
| 9W***07 | Converter Ar | 1 |
7u0721 Transmission Brake Oil Cooler Gp.
| 7U***21 | Cooler Group-Brake Oil | 1 |
8x7580 Differential & Bevel Gear Gp
| 8X***80 | Differential & Bevel Gear Group | 1 |
9c3012 Differential & Bevel Gear Gp
| 9C***12 | Differential & Bevel Gear Group | 1 |
8x7573 Differential Gp
| 8R***99 | Washer-Thrust | 2 |
| 8R***00 | Disc-Outer; (3.0 mm Thk) | 4 |
| 8R***01 | Disc-Outer; (2.9 mm Thk) | 4 |
7u4079 Inter-Axle Differential
| 7U***79 | Differential Group | 1 |
Driveshaft
Driveshaft -- Torque Converter To Transmission
6u0491 Driveshaft As
| 6U***91 | Driveshaft As | 1 |
| 7U***31 | Joint Group | 1 |
| 7U***07 | Joint Group | 1 |
Dump Body - Up Visual Alarm
Dump Body Side Extensions
Dump Body-Up Audible Alarm
Electric Speedometer
Engine Water Heater
Exhaust Heated Dump Body Group
French Regulation Air Reservoir
Hydraulic Hoist Lines T.U.V. Regulations
Hydraulic Oil Tank Protection Cover
Intake And Exhaust System T.U.V. Regulations
7u1009 Inter-Axle Differential
| 7U***09 | Inter-Axle Differential | 1 |
6u6485 Inter-Axle Differential
| 6U***85 | Inter-Axle Differential | 1 |
6u7809 Inter-Axle Differential
| 6U***09 | Inter-Axle Differential | 1 |
7u2130 Joint Gp
| 7U***30 | Joint Group; Joint Gp. - Universal | 1 |
2u8555 Joint Group
| 2U***55 | Joint Group; Joint Gp-Universal (A) | 1 |
2u8554 Joint Group
| 2U***54 | Joint Group; Joint Gp-Universal (A) | 1 |
2u8553 Joint Group
| 2U***53 | Joint Group | 1 |
| 2U***54 | Joint Group; Joint Gp-Universal (A) | 1 |
| 2U***55 | Joint Group; Joint Gp-Universal (A) | 1 |
7u9528 Joint Group
| 7U***28 | Joint Group | 1 |
7u2131 Joint Gp
| 7U***31 | Joint Group | 1 |
2u8557 Joint Group
| 2U***57 | Joint Group | 1 |
2u8556 Joint Group
| 2U***56 | Joint Group | 1 |
| 2U***57 | Joint Group | 1 |
| 2U***58 | Joint Group | 1 |
7u2806 Joint Gp
| 7U***06 | Joint Group | 1 |
7u2807 Joint Gp - Universal
| 7U***07 | Joint Group | 1 |
7u9526 Joint Group
| 7U***26 | Joint Group | 1 |
2u8558 Joint Group
| 2U***58 | Joint Group | 1 |
6u0500 Mid Bearing Driveshaft
| 6U***00 | Mid Bearing Driveshaft | 1 |
Noise Suppression (2 Of 2)
Noise Suppression (1 Of 2)
6u6843
| 6U***43 | Optional - Bumper/Radiator Guard | 1 |
Oscillating Hitch Diveshaft Group
Oscillating Hitch Driveshaft Group
6u1901 Output Transfer Gearbox Group (Part 2 Of 2)
| 6U***01 | Output Transfer Gearbox Group | 1 |
6u1901 Output Transfer Gearbox Gp (2 Of 2)
| 6U***01 | Output Transfer Gearbox Group | 1 |
6u1901 Output Transfer Gearbox Group (Part 1 Of 2)
| 6U***01 | Output Transfer Gearbox Group | 1 |
6u1901 Output Transfer Gearbox Gp (2a Of 2)
| 6U***01 | Output Transfer Gearbox Group | 1 |
6u1901 Output Transfer Gearbox Gp (1 Of 2)
| 6U***01 | Output Transfer Gearbox Group | 1 |
6u1901 Output Transfer Gearbox Gp (2b Of 2)
| 6U***01 | Output Transfer Gearbox Group | 1 |
Passenger Seat 6u8864
| 6U***64 | Passenger Seat | 1 |
Passenger Seat Gp.
Power Train Oil Lines
Ptx Exhaust And Muffler
8p8207 Pump Gp
| 8P***07 | Pump Group-Gear | 1 |
8p8208 Pump Gp
| 8P***08 | Pump Group-Gear | 1 |
6u6844
| 6U***44 | Radiator Protection Group | 1 |
Rear Driven Axle Differential And Carrier Group
Rear Driven Axle Group
6u9415 Rear Driveshaft Gp
| 6U***15 | Rear Driveshaft Group | 1 |
| 7U***30 | Joint Group; Joint Gp. - Universal | 1 |
| 7U***06 | Joint Group | 1 |
7u4410 Receptacle Gp
| 7U***10 | Receptacle Group | 1 |
Remote Start Receptacle
9w7710 Retarder & Torque Converter Gp
| 9W***10 | Retarder & Torque Converter Group | 1 |
9w7712 Retarder Gp
| 9W***12 | Retarder Group | 1 |
7u0812 Selector Valve
| 7U***12 | Selector Valve | 1 |
6u7466 Selector Valve T.U.V. Regulations
| 6U***66 | Selector Valve T.U.V. Regulations | 1 |
7u9795 Shaft Gp
| 7U***95 | Shaft Group | 1 |
7u6591 Shaft Gp
| 7U***91 | Shaft Group | 1 |
7u7448 Six Wheel Drive Transfer Gear Gp.
| 7U***48 | Six Wheel Drive Transfer Gear Group. | 1 |
Special Dump Body
Spillguard Extension
Swedish Regulation Air Reservoir
T.B.G. Regulations Group
6u6860 Tachograph Option
| 6U***60 | Tachograph Option | 1 |
Tool Kit
9w7711 Torque Converter Gp
| 9W***11 | Torque Converter Group | 1 |
Transfer Gearbox
Transfer Gearbox Breather Group
1q7630 Trim Gp
| 1Q***30 | Trim Group | 1 |
Twin Caliper Disc Brakes-Part 2 Of 2
Twin Caliper Disc Brakes -Part 1 Of 2
Tailgate Cylinder (Part 3 Of 4)
Underslung Tailgate Group (Part 1 Of 4)
Tailgate Load Control Valve (Part 4 Of 4)
Tailgate Hydraulic Lines (Part 2 Of 4)
2p3675 Valve Gp
| 2P***75 | Valve Group-Relief; Valve Gp-Pressure Relief | 1 |
7u1010 Hand Control Valve
| 7U***10 | Valve Group-Retarder Control | 1 |
2p5802 Valve Gp
| 2P***02 | Valve Group-Retarder Control | 1 |
7u1271 Air Valve
| 7U***71 | Valve-Hydraulic Pilot | 1 |
3z4416 Ventilation Gp
| 3Z***16 | Ventilation Group | 1 |
2u1781 Ventilator Group
| 2U***81 | Ventilator Group | 1 |
7u7782 Warning Gp
| 7U***82 | Warning Group | 1 |
7u4830 Wheel Group
| 7U***30 | Wheel Group | 1 |
4c1692 Wheel Gp
| 4C***92 | Wheel Group-Final Drive & Brake | 1 |
Basic Engine
3n5659 Fan Adaptor Group
| 3N***59 | Adapter Group-Fan | 1 |
3n2886 Seal Adaptor Group
| 3N***86 | Adapter Group-Seal; -Crankshaft | 1 |
1n4406 Camshaft Group
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
4n6050 Front Housing Cover Group
| 4N***50 | Cover Group | 1 |
8n3163 Cylinder Block Cover Group
| 8N***63 | Cover Group-Cylinder Block | 1 |
7n1342 Cylinder Block Cover Group
| 7N***42 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
9n0136 Cover Gp
| 9N***36 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
8n4745 Valve Mechanism Cover Group
| 8N***45 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
4n7693 Crankshaft Assembly
| 4N***93 | Crankshaft As | 1 |
Crankshaft Bearing Replacements
6n8079 Crankshaft Group
| 6N***79 | Crankshaft Group; Crankshaft Group | 1 |
6n8079 Crankshaft Gp
| 6N***79 | Crankshaft Group; Crankshaft Group | 1 |
7n6550 Cylinder Block Assembly
| 7N***50 | Cylinder Block As | 1 |
1n3576 Cylinder Block Group
| 1N***76 | Cylinder Block Group | 1 |
8n5286 Cylinder Block Gp.
| 8N***86 | Cylinder Block Group; Cylinder Block Group | 1 |
8n0246 Cylinder Head Gp
| 8N***46 | Cylinder Head Group; Cylinder Head Group | 1 |
7n8876 Cylinder Head Gp
| 7N***76 | Cylinder Head Group; Cylinder Head Group | 1 |
1w4410 Damper Group
| 1W***10 | Damper Group; Engine Damper Group | 1 |
3n7397 Fan Drive Group
| 3N***97 | Drive Group-Fan; Fan Drive Group | 1 |
7n9536 Cylinder Head Fastener Group
| 7N***36 | Fastener Group-Cylinder Head; Cylindetr Head Fastener Group | 1 |
1w3802 Front Housing Fastener Group
| 1W***02 | Fastener Group-Front Housing | 1 |
2p2505 Flywheel Gp
| 2P***05 | Flywheel Group; Flywheel Group | 1 |
2p2505 Flywheel Group
| 2P***05 | Flywheel Group; Flywheel Group | 1 |
Front Engine Mount
1w5634 Front Timing Gear Group
| 1W***34 | Gear Group-Front Timing; Front Gear Group--Timing | 1 |
2p6166 Flywheel Housing Group
| 2P***66 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
8n0303 Front Housing Group
| 8N***03 | Housing Group-Front; Front Housing Group | 1 |
8n0303 Housing Gp
| 8N***03 | Housing Group-Front; Front Housing Group | 1 |
6n8326 Engine Lifting Group
| 6N***26 | Lifting Group; Lifting Eye Gp-Engine | 1 |
2w1177 Connecting Rod & Piston Group
| 2W***77 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
3n2884 Crankshaft Pulley Group
| 3N***84 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
3n5626 Fan Pulley Group
| 3N***26 | Pulley Group-Fan Drive | 1 |
Rear Engine Mount
2p6224 Crankshaft Seal Group
| 2P***24 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
2p6224 Seal Gp-Crankshaft
| 2P***24 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
7n0744 Engine Support Group
| 7N***44 | Support Group-Engine; Support Group-Engine | 1 |
7n8026 Valve Mechanism Group
| 7N***26 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Braking System
2u4160 Actuator Gp
| 2U***60 | Actuator Group | 1 |
7u6105 Actuator Gp
| 7U***05 | Actuator Group-Brake | 1 |
Air Brake Lines-(Part 1 Of 2)
Air Brake Lines - (Part 2 Of 2)
Air Brake Lines- (Part 1 Of 2)
Air Brake Lines
Air Brake Lines-(Part 2 Of 2)
Air Dryer
Air Reservoirs
8r0843 Brake Gp
| 8R***43 | Brake Group-Hydraulic Caliper Service | 1 |
Foot Brake Valve
Governor Valve
Hydraulic Brake Lines
Hydraulic Oil Reservoir
Park Brake Assembly
Park Brake Chamber Assembly
6u8893 Park Brake Chamber Assembly
| 6U***93 | Park Brake Chamber Assembly | 1 |
Park Brake Group
6u7706 Park Brake Valve Assem.
| 6U***06 | Park Brake Valve Assem. | 1 |
Pressure Converter
7u6829 Relay Valve
| 7U***29 | Relay Valve | 1 |
7u6805 Relay Valve
| 7U***05 | Relay Valve | 1 |
Treadle Group
2u3013 Valve Group
| 2U***13 | Valve Group | 1 |
| 7U***05 | Relay Valve | 1 |
| 7U***29 | Relay Valve | 1 |
Cab, Gauges And Accessories
Air Horn And Lines Group
9g9813 Alarm Gp
| 9G***13 | Alarm Group; -Action-Action, Engine Overspeed | 1 |
Cab Door Group
Cab Grouppart 1 Of 2
Cab Group
Cab Group-Part 2 Of 2
Cab Heater Group
Cab Insulation
Cab Screen Group
Cab Tilt Cylinder
6u5618 Cab Tilt Group
| 6U***18 | Cab Tilt Group | 1 |
6u5595 Cab Tilt Hand Pump
| 6U***95 | Cab Tilt Hand Pump | 1 |
Cab Tilt Prop Group
Cab Trim Group
Dashpanel Group
Driver'S Seat 6u5966
| 6U***66 | Driver'S Seat | 1 |
Hood Latch Gp.
7u7290 Cab Tilt Hand Pump
| 7U***90 | Pump Group-Cab Tilt | 1 |
8y4029 Seat Belt Gp
| 8Y***29 | Seat Belt Group | 1 |
Seat Belt Kit
Windscreen Washer Group
Windscreen Wiper Group
7u6219 Wiper Gp
| 7U***19 | Wiper Group | 1 |
7u7211 Wiper Gp
| 7U***11 | Wiper Group | 1 |
3t7068 Wiper Gp
| 3T***68 | Wiper Group-Windshield; -Rear | 1 |
Chassis
Battery Carrier Group
Chassis Ancillaries
Chassis Group
Dump Body
Hood Group
Mudguard Group
Oscillating Hitch Group
7u6281 Oscillating Hitch Group
| 7U***81 | Oscillating Hitch Group | 1 |
Safety Tread Group
Cooling System
8n4457 Base Gp
| 8N***57 | Base Group-Oil Filter; Base Group-Engine Oil Filter | 1 |
8n4457 Oil Filter Base Group
| 8N***57 | Base Group-Oil Filter; Base Group-Engine Oil Filter | 1 |
7w1059 Engine Oil Cooler Group
| 7W***59 | Cooler Group-Filter Base & Eng Oil | 1 |
7w0980 Cooler Gp
| 7W***80 | Cooler Group-Filter Base & Eng Oil | 1 |
7w1144 Transmission Oil Cooler Group
| 7W***44 | Cooler Group-Transmission Oil | 1 |
Engine Fan And Mounting Group
8n0888 Housing And Regulator Group
| 8N***88 | Housing & Regulator Group; -Coolant | 1 |
8n4112 Water Lines Group
| 8N***12 | Lines Group-Water; -Bypass Relief | 1 |
2w6779 Water Lines Group
| 2W***79 | Lines Group-Water | 1 |
9y6435 Pump Gp
| 9Y***35 | Pump Group-Water | 1 |
2w8002 Pump Gp
| 2W***02 | Pump Group-Water; Water Pump (Assembly) | 1 |
7n5908 Water Pump Group
| 7N***08 | Pump Group-Water | 1 |
9y6436 Pump Gp
| 9Y***36 | Pump Group-Water | 1 |
7u6722 Radiator Assembly
| 7U***22 | Radiator Group | 1 |
Radiator Mounting Group
Shunt Tank And Radiator Cooling Lines Group
Decals And Service Equipment
3t6423 Covers Gp
| 3T***23 | Covers Group-Shipping | 1 |
Nameplates And Transfers
Remote Greasing
Tool Kit Group
Engine Arrangement
6c1516 Engine Arrangement - Part 1 Of 2
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
| 1P***44 | Breather Group | 1 |
| 1W***02 | Fastener Group-Front Housing | 1 |
7e3412 Engine Arrangement - Part 1 Of 2
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
| 1P***44 | Breather Group | 1 |
| 1W***02 | Fastener Group-Front Housing | 1 |
6c1011 Engine Ar - Part 2 Of 2
| 1W***09 | Lines Group-Fuel Injection | 1 |
| 1W***86 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
| 1W***70 | Control Group-Fuel Ratio | 1 |
7c7045 Engine Arrangement - Part 1 Of 2
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
| 1P***44 | Breather Group | 1 |
| 1W***02 | Fastener Group-Front Housing | 1 |
7e3412 Engine Arrangement - Part 2 Of 2
| 1W***51 | Starting Motor Group-Electric | 1 |
| 1W***70 | Control Group-Fuel Ratio | 1 |
| 1W***85 | Control Group-Governor; Governor Control Group | 1 |
6c1011 Engine Ar - Part 1 Of 2
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
| 1P***44 | Breather Group | 1 |
| 1W***02 | Fastener Group-Front Housing | 1 |
7c7045 Engine Arrangement - Part 2 Of 2
| 1W***51 | Starting Motor Group-Electric | 1 |
| 1W***70 | Control Group-Fuel Ratio | 1 |
| 1W***96 | Turbocharger Group; Turbocharger Group | 1 |
6c1516 Engine Arrangement - Part 2 Of 2
| 1W***51 | Starting Motor Group-Electric | 1 |
| 1W***70 | Control Group-Fuel Ratio | 1 |
| 1W***96 | Turbocharger Group; Turbocharger Group | 1 |
Fuel System And Governor
7c8993 Fastener Gp
| 7C***93 | Fastener Group-Fuel Inj Pump | 1 |
2w0255 Camshaft Assembly
| 2W***55 | Camshaft As | 1 |
1w6870 Fuel Ratio Control Group
| 1W***70 | Control Group-Fuel Ratio | 1 |
7w2830 Fuel Ratio Control Group
| 7W***30 | Control Group-Fuel Ratio | 1 |
4w1339 Fuel Ratio Control Group
| 4W***39 | Control Group-Fuel Ratio | 1 |
1w6870 Control Gp
| 1W***70 | Control Group-Fuel Ratio | 1 |
4w1037 Fuel Ratio Control Group
| 4W***37 | Control Group-Fuel Ratio | 1 |
1w8685 Governor Control Group
| 1W***85 | Control Group-Governor; Governor Control Group | 1 |
7n7457 Governor Control Group
| 7N***57 | Control Group-Governor | 1 |
Drain Lines Group
1p2299 Fuel Filter Assembly
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
2w1011 Secondary Filter Group
| 2W***11 | Filter Group-Secondary; (Secondary) | 1 |
2w1011 Filter Gp
| 2W***11 | Filter Group-Secondary; (Secondary) | 1 |
Fuel Lines Group
Fuel Tank Group-Part 1 Of 2
Fuel Tank Group-Part 2 Of 2
Governor Controls
2w4107 Governor Group (Part 2 Of 2)
| 2W***07 | Governor Group | 1 |
2w2410 Governor Gp (2 Of 3)
| 2W***10 | Governor Group | 1 |
2w2410 Governor Gp (1 Of 2)
| 2W***10 | Governor Group | 1 |
2w2410 Governor Gp (1 Of 3)
| 2W***10 | Governor Group | 1 |
2w2410 Governor Gp (3 Of 3)
| 2W***10 | Governor Group | 1 |
2w2410 Governor Gp (2 Of 2)
| 2W***10 | Governor Group | 1 |
2w4107 Governor Group (Part 1 Of 2)
| 2W***07 | Governor Group | 1 |
1w3487 Fuel Injection Pump Housing Assembly
| 1W***87 | Housing As-Fuel Pump | 1 |
4p1892 Lines Gp
| 4P***92 | Lines Group-Fuel Injection | 1 |
7w6167 Lines Gp
| 7W***67 | Lines Group-Fuel Injection | 1 |
2w3230 Fuel Injection Lines Group
| 2W***30 | Lines Group-Fuel Injection | 1 |
2w3249 Lines Gp
| 2W***49 | Lines Group-Fuel Injection | 1 |
1w8992 Fuel Injection Lines Group
| 1W***92 | Lines Group-Fuel Injection | 1 |
4p1891 Lines Gp
| 4P***91 | Lines Group-Fuel Injection | 1 |
7w3677 Lines Gp
| 7W***77 | Lines Group-Fuel Injection | 1 |
1w3008 Fuel Injection Lines Group
| 1W***08 | Lines Group-Fuel Injection | 1 |
2w3249 Fuel Injection Lines Group
| 2W***49 | Lines Group-Fuel Injection | 1 |
2w3521 Fuel Injection Lines Group
| 2W***21 | Lines Group-Fuel Injection | 1 |
7c5553 Lines Gp
| 7C***53 | Lines Group-Fuel Injection | 1 |
7c5552 Lines Gp
| 7C***52 | Lines Group-Fuel Injection | 1 |
7w3679 Lines Gp
| 7W***79 | Lines Group-Fuel Injection | 1 |
1w8991 Fuel Injection Lines Group
| 1W***91 | Lines Group-Fuel Injection | 1 |
1w3609 Fuel Injection Lines Group
| 1W***09 | Lines Group-Fuel Injection | 1 |
7w6168 Lines Gp
| 7W***68 | Lines Group-Fuel Injection | 1 |
6u0001 - Governor Pedal
| 6U***01 | Pedal Group-Governor | 1 |
6u0001 Governor Pedal
| 6U***01 | Pedal Group-Governor | 1 |
2w0256 Pump Gp
| 2W***56 | Pump Group-Fuel Injection | 1 |
2w0256 Fuel Injection Pump Group
| 2W***56 | Pump Group-Fuel Injection | 1 |
1w6539 Fuel Injection Pump Group
| 1W***39 | Pump Group-Fuel Injection | 1 |
1w6539 Pump Gp
| 1W***39 | Pump Group-Fuel Injection | 1 |
8n5251 Fuel Priming Pump
| 8N***51 | Pump Group-Fuel Prime & Prim Filter | 1 |
8n1180 Fuel Priming Pump
| 8N***80 | Pump Group-Fuel Prime & Prim Filter; Pump Gp-Fuel Priming & Primary Filter | 1 |
8n3365 Fuel Priming Pump
| 8N***65 | Pump Group-Fuel Priming; Priming Pump-Fuel & Primary Filter | 1 |
1w1695 Fuel Transfer Pump Group
| 1W***95 | Pump Group-Fuel Transfer | 1 |
1w1695 Pump Gp
| 1W***95 | Pump Group-Fuel Transfer | 1 |
2w4160 Fuel Transfer Pump And Mounting Group
| 2W***60 | Pump Group-Fuel Transfer & Mtg; Fuel Transfer Pump And Mounting Group | 1 |
2w1078 Governor & Fuel Injection Pump Gp
| 2W***78 | Pump Group-Gov & Fuel Inj | 1 |
2w1078 Gov & Fuel Inj Pump Gp (1 Of 2)
| 2W***78 | Pump Group-Gov & Fuel Inj | 1 |
2w1078 Gov & Fuel Inj Pump Gp (2 Of 2)
| 2W***78 | Pump Group-Gov & Fuel Inj | 1 |
8n7276 Torque Control Group
| 8N***76 | Torque Control Group | 1 |
Hydraulic System
5u8596 Hoist Control Valve
| 5U***96 | Hoist Control Valve | 1 |
7u1154 Hoist Control Valve
| 7U***54 | Hoist Control Valve | 1 |
Hoist Controls Group
Hoist Cylinder
Hydraulic Hoist Lines Part 2 Of 2
Hydraulic Hoist Lines
Hydraulic Hoist Lines-Part 1 Of 2
Hydraulic Return Lines
Hydraulic Tank Group
6u8013 Hydraulic Pump
| 6U***13 | Pump As Hydraulic | 1 |
Intake And Exhaust System
1w4486 Exhaust Manifold Fastener Group
| 1W***86 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
2w5397 Air Lines Group
| 2W***97 | Lines Group-Air; Air Lines Group | 1 |
2w2296 Air Lines Group
| 2W***96 | Lines Group-Air; Air Lines Group | 1 |
8n4703 Air Lines Group
| 8N***03 | Lines Group-Air; Lines Gp-Turbocharger Air Inlet | 1 |
7n8756 Air Lines Group
| 7N***56 | Lines Group-Air; Air Lines Group | 1 |
Air Cleaner Group
1w7146 Air Compressor Group
| 1W***46 | Air Compressor Group | 1 |
7n5642 Air Compressor Group
| 7N***42 | Air Compressor Group; Air Compressor Group | 1 |
7c7596 Cartridge Gp
| 7C***96 | Cartridge Group-Turbocharger | 1 |
1w1604 Turbocharger Cartridge Group
| 1W***04 | Cartridge Group-Turbocharger | 1 |
Exhaust And Muffler Group
6c1049 Lines Gp
| 6C***49 | Lines Group-Air Compressor; Air Compressor Lines Group | 1 |
8n1167 Turbocharger Oil Lines Group
| 8N***67 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
9n5257 Turbocharger Oil Lines Group
| 9N***57 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
9l5805 Exhaust Manifold Group
| 9L***05 | Manifold Group-Exhaust | 1 |
2p6573 Exhaust Manifold Group
| 2P***73 | Manifold Group-Exhaust | 1 |
9l5805 Manifold Gp
| 9L***05 | Manifold Group-Exhaust | 1 |
7c7579 Turbocharger G.P
| 7C***79 | Turbocharger Group | 1 |
1w8096 Turbocharger Group
| 1W***96 | Turbocharger Group; Turbocharger Group | 1 |
2w7277 Turbocharger Group
| 2W***77 | Turbocharger Group | 1 |
7w5785 Turbocharger G.P
| 7W***85 | Turbocharger Group; Turbocharger Group | 1 |
Lubrication System
Breather Group
Engine Oil Drain Group
2p6475 Oil Filter Group
| 2P***75 | Filter Group-Engine Oil; Oil Filter Group (10z1 ~ 10z7023) | 1 |
Fumes Disposal Gp
2p6105 Lines Gp
| 2P***05 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
Oil Filler
Oil Level Gauge Group
3n2899 Pan Gp
| 3N***99 | Pan Group-Oil | 1 |
3n2899 Oil Pan Group
| 3N***99 | Pan Group-Oil | 1 |
9y9192 Pan Gp
| 9Y***92 | Pan Group-Oil | 1 |
4w2448 Pump Gp
| 4W***48 | Pump Group-Engine Oil; Pump Gp-Engine Oil Gear | 1 |
2p1785 Oil Pump Group
| 2P***85 | Pump Group-Engine Oil | 1 |
6n2642 Pump Gp
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 1P***46 | Washer-Hard; (10.2x35x6-mm Thk) | 1 |
| 2P***85 | Pump Group-Engine Oil | 1 |
2p1784 Oil Pump Group
| 2P***84 | Pump Group-Engine Oil; Engine Oil Pump Group | 1 |
5c9434 Test Screen Group
| 5C***34 | Screen Group; Test Screen Group | 1 |
Starting And Electrical System
5s9088 Alternator Gp*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 |
5n3971 Alternator Group
| 5N***71 | Alternator Group-Charging; S/N 13z18390-26042 | 1 |
| 5S***88 | Alternator Group-Charging | 1 |
9g9538 Alternator Gp
| 9G***38 | Alternator Group-Charging | 1 |
6t7223 Alternator Group
| 6T***23 | Alternator Group-Charging; Alternator Group-Nippondenso -- 24 Volt, 50 Ampere | 1 |
3t1888 Alternator Gp
| 3T***88 | Alternator Group-Charging; Alternator Group Delco-Remy 24 Volt, 50 Ampere | 1 |
Dashpanel Electrical Harnesses
1w9010 Tachometer Drive Group
| 1W***10 | Drive Group-Tachometer; Tachometer Drive Group | 1 |
Electrical Cables
Electrical Equipment Group
Electrical Harnesses
Electrical Harnesses - Cab
Electrical Terminals, Insulators And Plugs
Ether Starting Gp.
9x1439 Lamp Gp
| 9X***39 | Lamp Group-Flood; -Rear-Ladder Access-Engine Work Light | 1 |
Lighting And Audible Equipment Gp
Lighting And Audible Equipment Group
Lighting Group
5n5327 Alternator Mounting Group
| 5N***27 | Mounting Group-Alternator | 1 |
1w0141 Shut-Off Gp
| 1W***41 | Shut-Off Group-Electrical; Electrical Shut-Off Group | 1 |
2w8197 Electrical Shut-Off Group -
| 2W***97 | Shutoff Group-Electrical; Shut-Off Gp-Electrical | 1 |
3t8635 Solenoid Assembly
| 3T***35 | Solenoid As | 1 |
3t4704 Solenoid Assembly
| 3T***04 | Solenoid As-Starter; (24-Volt) | 1 |
7t8854 Solenoid As
| 7T***54 | Solenoid As-Starting Motor | 1 |
3t6305 Starting Motor Gp
| 3T***05 | Starting Motor Group-Electric; Starting Motor Group (Robert Bosch) | 1 |
7s3622 Starting Motor Gp
| 7S***22 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
9g4338 Starting Motor Gp- (1 Of 2)
| 9G***38 | Starting Motor Group-Electric; Electric Starting Motor Group- Prestolite | 1 |
3t4581 Electric Starting Motor Group (Part 1 Of 3)
| 3T***81 | Starting Motor Group-Electric | 1 |
3t4583 Electric Starting Motor Group
| 3T***81 | Starting Motor Group-Electric | 1 |
| 3T***82 | Starting Motor Group-Electric | 1 |
| 3T***83 | Starting Motor Group-Electric | 1 |
3t2647 Starting Motor Gp-(1 Of 2)
| 3T***47 | Starting Motor Group-Electric; Electric Starting Motor Group- Delco-Remy | 1 |
3t2647 Starting Motor Gp-(2 Of 2)
| 3T***47 | Starting Motor Group-Electric; Electric Starting Motor Group- Delco-Remy | 1 |
3t4582 Starting Motor Gp
| 3T***82 | Starting Motor Group-Electric | 1 |
3t2647 Starting Motor Gp-(1 Of 3)
| 3T***47 | Starting Motor Group-Electric; Electric Starting Motor Group- Delco-Remy | 1 |
4n3181 Electric Starting Motor Group
| 3T***47 | Starting Motor Group-Electric; Electric Starting Motor Group- Delco-Remy | 1 |
| 3T***05 | Starting Motor Group-Electric; Starting Motor Group (Robert Bosch) | 1 |
| 4N***81 | Starting Motor Group-Electric | 1 |
8n2145 Starting Motor Gp
| 8N***45 | Starting Motor Group-Electric; Electric Starting Motor Group--24 Volt | 1 |
3t4581 Electric Starting Motor Group (Part 3 Of 3)
| 3T***81 | Starting Motor Group-Electric | 1 |
9g4338 Starting Motor Gp- (2 Of 2)
| 9G***38 | Starting Motor Group-Electric; Electric Starting Motor Group- Prestolite | 1 |
1w3851 Electric Starting Motor Group
| 1W***51 | Starting Motor Group-Electric | 1 |
3t4581 Electric Starting Motor Group (Part 2 Of 3)
| 3T***81 | Starting Motor Group-Electric | 1 |
3t2647 Starting Motor Gp-(2 Of 3)
| 3T***47 | Starting Motor Group-Electric; Electric Starting Motor Group- Delco-Remy | 1 |
7s3622 Electric Starting Motor Group
| 7S***22 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
3t2647 Starting Motor Gp-(3 Of 3)
| 3T***47 | Starting Motor Group-Electric; Electric Starting Motor Group- Delco-Remy | 1 |
Vee Belts - Alternator
Steering System
Diverter Valve Group
Hydraulic Steer Lines (Part 2b Of 2)
Hydraulic Steer Lines (Part 2a Of 2)
Hydraulic Steer Lines (Part 1 Of 2)
Hydraulic Steer Lines (Part 2 Of 2)
Hydraulic Steer Lines (Part 1a Of 2)
5c6878 Hand Metering Pump Assembly
| 5C***78 | Pump As-Hand Metering | 1 |
6c0570 Pump Gp-Metering
| 6C***70 | Pump Group-Metering | 1 |
7u4172 Pump Gp.
| 7U***72 | Pump Group. | 1 |
6u5329 Supplemental Steer Pump Group
| 6U***29 | Pump-Ground Drive | 1 |
Steer Cylinder
5u0282 Steer Valve Group
| 5U***82 | Steer Valve Group | 1 |
7u9735 Steering Cylinder Gp
| 7U***35 | Steering Cylinder Group | 1 |
Steering Wheel Group
7u1831 Supplemental Steer Valve Gp.
| 7U***31 | Supplemental Steer Valve Group. | 1 |
1u4050 Basic Valve Group
| 1U***50 | Valve Group | 1 |
7u6970 Pressure Reducing Valve
| 7U***70 | Valve Group-Pressure Reducing | 1 |
9t5615 Valve Gp
| 9T***15 | Valve Group-Steering | 1 |
9t7920 Valve Gp
| 9T***20 | Valve Group-Steering | 1 |
Suspension System
6u0666 Accumulator
| 6U***66 | Accumulator Group | 1 |
7u8132 Cylinder Group
| 7U***32 | Cylinder Group | 1 |
6u9600 Electronic Height Sensor Group
| 6U***00 | Electronic Height Sensor Group | 1 |
7u3685 Electronic Height Sensor Group
| 7U***85 | Electronic Height Sensor Group | 1 |
Electronic Height Sensor Group
Electronic Suspension Group
Hydraulic Suspension Lines
Suspension Cylinder 6u3250
| 6U***50 | Suspension Cylinder | 1 |
Suspension Frame And Mountings
Suspension Frame And Mountings -Part 2 Of 2
Suspension Frame And Mountings-Part 1 Of 2
Suspension Frame And Mountings - Tractor
6u5104 Suspension Height Valve (Part 2 Of 2)
| 6U***04 | Suspension Height Valve | 1 |
7u2231 Suspension Height Valve (Part 1 Of 3)
| 7U***31 | Suspension Height Valve | 1 |
7u2231 Suspension Height Valve (Part 3 Of 3)
| 7U***31 | Suspension Height Valve | 1 |
7u2231 Suspension Height Valve (Part 2 Of 3)
| 7U***31 | Suspension Height Valve | 1 |
6u5104 Suspension Height Valve (Part 1 Of 2)
| 6U***04 | Suspension Height Valve | 1 |
Transmission, Drive Train, Axles And Wheels
7u7608 Breather Gp
| 7U***08 | Breather Group | 1 |
7u7611 Breather Gp
| 7U***11 | Breather Group | 1 |
6u6474 Breather Group
| 6U***74 | Breather Group | 1 |
6u6473 Breather Group
| 6U***73 | Breather Group | 1 |
Centre Axle Differential And Carrier Group
4u1334 Centre Driveshaft As
| 4U***34 | Centre Driveshaft Group | 1 |
| 7U***93 | Joint Group - Universal | 1 |
| 7U***15 | Joint Group - Universal | 1 |
6y9252 Control Gp-Part 2 Of 2
| 6Y***52 | Control Group-Transmission | 1 |
6y9252 Control Gp-Part 1 Of 2
| 6Y***52 | Control Group-Transmission | 1 |
9c3012 Front Axle Differential And Bevel Gear Gp
| 9C***12 | Differential & Bevel Gear Group | 1 |
9c3012 Centre Axle Differential And Bevel Gear Gp
| 9C***12 | Differential & Bevel Gear Group | 1 |
7u4078 Inter-Axle Differential
| 7U***78 | Differential Group | 1 |
9c0596 Differential Gp
| 9C***96 | Differential Group | 1 |
4v1908 Differential Group
| 4V***08 | Differential Group | 1 |
Driven Axle Group
Driveshaft - Torque Converter To Transmission
Driveshaft--Torque Converter To Transmission
6p4603 Filter Gp
| 6P***03 | Filter Group-Oil; -Park Brake Release, Xmsn-Parking Brake Release-Rear Brakes | 1 |
Front Axle Differential And Carrier Group
Front Driveshaft
6u6484 Inter-Axle Differential
| 6U***84 | Inter-Axle Differential | 1 |
6u7808 Inter-Axle Differential
| 6U***08 | Inter-Axle Differential | 1 |
7u1008 Inter-Axle Differential
| 7U***08 | Inter-Axle Differential | 1 |
Inter-Axle Differential Lock-Up Actuation Group
2u8556 Joint Group
| 2U***56 | Joint Group | 1 |
| 2U***57 | Joint Group | 1 |
| 2U***58 | Joint Group | 1 |
7u2806 Joint Gp
| 7U***06 | Joint Group | 1 |
7u2130 Joint Gp
| 7U***30 | Joint Group; Joint Gp. - Universal | 1 |
7u9526 Joint Group
| 7U***26 | Joint Group | 1 |
2u8558 Joint Group
| 2U***58 | Joint Group | 1 |
2u8557 Joint Group
| 2U***57 | Joint Group | 1 |
7u2815 Joint Gp
| 7U***15 | Joint Group - Universal | 1 |
7u2193 Joint Gp
| 7U***93 | Joint Group - Universal | 1 |
Magnetic Screen
Oscillating Hitch Driveshaft Group
6u1900 Output Transfer Gearbox Gp (2 Of 2)
| 6U***00 | Output Transfer Gearbox Group | 1 |
6u1900 Output Transfer Gearbox Gp (1 Of 2)
| 6U***00 | Output Transfer Gearbox Group | 1 |
6u1900 Output Transfer Gearbox Group (Part 2 Of 2)
| 6U***00 | Output Transfer Gearbox Group | 1 |
6u1900 Output Transfer Gearbox Group (Part 1 Of 2)
| 6U***00 | Output Transfer Gearbox Group | 1 |
8p7901 Planetary Gp-Transmission-Part 2 Of 2
| 8P***01 | Planetary Group | 1 |
8p7901 Planetary Gp-Transmission-Part 1 Of 2
| 8P***01 | Planetary Group | 1 |
6y4419 Planetary Gp-Part 2 Of 2
| 6Y***19 | Planetary Group-Transmission | 1 |
6y4419 Planetary Gp-Part 1 Of 2
| 6Y***19 | Planetary Group-Transmission | 1 |
Power Train Oil Lines Group
8p8207 Pump Gp
| 8P***07 | Pump Group-Gear | 1 |
8p8208 Pump Gp
| 8P***08 | Pump Group-Gear | 1 |
Rear Driveshaft
6u9415 Rear Driveshaft Gp
| 6U***15 | Rear Driveshaft Group | 1 |
| 7U***30 | Joint Group; Joint Gp. - Universal | 1 |
| 7U***06 | Joint Group | 1 |
6u6559 Selector Valve Group-Part 1 Of 2
| 6U***59 | Selector Valve Group | 1 |
6u6559 Selector Valve Group
| 6U***59 | Selector Valve Group | 1 |
6t1881 Torque Converter Gp
| 6T***81 | Torque Converter Group | 1 |
6t1882 Torque Converter Gp
| 6T***82 | Torque Converter Group | 1 |
7u1984 Trailing Axle Group
| 7U***84 | Trailing Axle Group | 1 |
Trailing Axle Group
7u1985 Trailing Axle, Wheel And Brake Group
| 7U***85 | Trailing Axle, Wheel And Brake Group | 1 |
Transmission Arrangement
Transmission Case And Covers Group (Part 2 Of 2)
Transmission Case And Covers Group (Part 1 Of 2)
2u8129 Transmission Filler Gp.
| 2U***29 | Transmission Filler Group. | 1 |
Transmission Hand Controls
Transmission Hydraulic Control Arrangement
Transmission Hydraulic Control Group
Transmission Mounts, Oil Filler And Dipstick
2u6628 Centre Driveshaft As
| 2U***28 | Universal Joint Group | 1 |
9p3060 Manifold And Reducing Valve Group
| 9P***60 | Valve Group-Manifold & Reducing | 1 |
2p3675 Valve Gp-Pressure Relief
| 2P***75 | Valve Group-Relief; Valve Gp-Pressure Relief | 1 |
6y0620 Valve Gp-Selector
| 6Y***20 | Valve Group-Selector | 1 |
9p3059 Valve Gp-(2 Of 2)
| 9P***59 | Valve Group-Selector & Press Cont | 1 |
9p3059 Valve Gp-(1 Of 2)
| 9P***59 | Valve Group-Selector & Press Cont | 1 |
7u4831 Wheel Group
| 7U***31 | Wheel Group | 1 |
4c1692 Wheel Gp
| 4C***92 | Wheel Group-Final Drive & Brake | 1 |
D250B serial number reference
On the D250B the identification plate is a metal tag riveted to the truck frame, most commonly found near the operator's cab or on the front frame section close to the articulation joint. The plate shows the full Product Identification Number; the first three characters are the serial number prefix identifying the model/build series, and the digits that follow are the individual unit's sequence number. Always read the prefix straight off the plate rather than assuming it from the model name, since articulated trucks in this lineage share frames and plates can be relocated during rebuilds.
| Prefix | Identifies | Notes |
|---|---|---|
| 5WD | D250B articulated dump truck (only documented series/prefix) | Serial range runs from 00001 up to roughly 00550 across factory parts and service manual coverage for this model, indicating a short total build run (mid-1980s). Paired with the Cat 3306 diesel engine. The D250B carries the DJB-derived articulated-truck lineage Caterpillar acquired rights to in 1984, positioned ahead of the later D250D and D250E/D250E Series II trucks. Plant/region is not tied to this prefix by name in available sources - confirm with dealer if needed. |
Frequently asked questions
What engine does the Caterpillar D250B use?
The D250B runs a Caterpillar 3306 TA, a turbocharged, air-to-air aftercooled inline six-cylinder diesel with mechanical jerk-pump fuel injection and no electronic engine control. Gross output is rated at roughly 163 kW (218.6 hp).
What is the Caterpillar D250B's operating weight?
Empty operating weight is about 17,963 kg (39,601.7 lb). With its rated payload of roughly 22,680 kg (50,000.9 lb) added, gross operating weight reaches about 40,643 kg (89,602.5 lb).
What replaced the Caterpillar D250B?
Caterpillar carried the D250 platform forward to the D250D, then later to the D250E and D250E Series II. Those later generations changed engine and running-gear specs, so parts and fluids should be verified against the D250D/E documentation rather than assumed from the D250B.
What D250B owners discuss
What engine is in the D250B and what do owners flag about it?
The D250B runs the Cat 3306 diesel, turbocharged with direct injection and an air-to-air aftercooler, controlled mechanically through a jerk-type fuel injection pump rather than an ECM. Owners report the usual 3306 wear pattern on higher-hour units: fuel delivery problems and injector wear causing a loss of power or intermittent stalling, boost drop-off from a tired turbo, and oil carried out the exhaust (blow-by) once piston rings or liners wear. Because there's no electronic engine control on this machine, diagnosis is mechanical: injector pop-test, compression check, and boost-pressure check rather than pulling fault codes. Have your dealer verify any suspected fuel pump or turbo fault before teardown.
How does the powershift transmission behave and what causes hesitation or slipping?
Like other articulated haulers of this era, the D250B shifts under load through hydraulically actuated clutch packs so power to the wheels is never fully interrupted, letting the truck keep moving on grade and in loose material without stalling. Reported causes of hesitation before a gear engages, or of a gear slipping, are worn clutch discs, low transmission line pressure, or a failing pressure regulator valve. A common self-inflicted cause is topping off with the wrong fluid: an oil too slippery for the clutch material (engine oil or a GL-5 gear oil) keeps the discs from gripping properly, so always match the transmission fill to the powershift-rated spec called out in the service manual.
Are there known access or service quirks with this model's drivetrain layout?
Owners working on this chassis note the transfer case sits under the dump body, so some drivetrain service on the D250B requires raising or pulling the box to get clear access, which adds labor time compared with a straight-frame truck. Budget for this when scoping a transfer case or rear-frame job rather than assuming it's a bolt-up-from-underneath repair.
What wear pattern shows up at the articulation and oscillation joints?
These joints take the full twisting and rocking load of the frame and wear the pins and bushings over several thousand hours. The tell is play: rock the front frame side to side and feel for looseness in the articulation joint, and cycle the body up and down to feel for play in the oscillation hitch at full up and full down stops. Any detectable play is already worth addressing, since it tends to accelerate once it starts. Pin-and-bushing wear is repairable as long as it hasn't worn through into the parent steel; if it has, expect a labor-heavy weld-and-machine repair rather than a simple parts swap. Grease these points on schedule to slow the wear.
What's typical of the braking system, and what should a buyer watch for?
Cat ADTs of this generation use enclosed, oil-cooled wet multi-disc brakes rather than dry external brakes, which resist contamination and double as a retarder on grade; they're comparatively low-maintenance versus dry disc setups. That said, owners of sibling Cat articulated trucks have reported charge-related brake faults: a soft park brake, no service brake pressure building at startup, and a brake-fault alarm, usually tracing back to the brake charge pump, accumulator, or a charging valve rather than the discs themselves. Correct operating technique also matters: use the retarder and a lower gear to control speed on downgrades, and don't ride the service brake to hold a gear. Because this is a safety system, have your dealer verify brake charge pressure and accumulator precharge before returning the truck to service.
What tire and undercarriage issues come up most in maintenance discussions?
Tires are consistently called out as the single biggest recurring cost on articulated trucks, driven by the size and price of the tire itself plus uneven wear from misalignment or a worn oscillation joint. Owners warn against mixing bias-ply and radial tires on the same truck, and against mismatched tread patterns axle to axle, since that accelerates wear and affects handling in the frame-steer geometry. Because there's no real suspension beyond the tires themselves, chassis and drivetrain components see more shock load than a rigid-frame truck, so tire pressure and tread condition checks are worth doing more often than on a straight truck.
What should a buyer check before purchasing a used D250B?
Get maintenance records and any oil sample history before bidding; a truck with no service history is a bigger unknown on a machine this old. Walk the whole truck for fluid leaks at the engine, transmission, and hydraulic lines. Rock the articulation joint and cycle the body to check oscillation-hitch play as described above. Inspect the dump body for stress cracks around the pivot pin bosses, cylinder lift points, and the chute area where material slides out, since these are the classic crack locations on a well-used body. Check tire condition and make sure tread patterns and construction match side to side. Run the transmission through all ranges and confirm it shifts cleanly without hesitation, and confirm the engine doesn't smoke excessively or show heavy blow-by at idle. Finally, confirm the brake system builds pressure properly at startup with no fault alarm. Have your dealer verify brake accumulator charge and any structural crack repair before you rely on the truck in daily service.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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