Caterpillarwheel tractor-scraperwheel tractor
Caterpillar 641B
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 641B is a heavy-duty single-engine wheel tractor-scraper designed for large-scale earthmoving, mining, and construction applications. Part of the legendary 600 series lineage, this machine features a Caterpillar D346 turbocharged V8 diesel engine, providing up and to 550 flywheel horsepower. The 641B is characterized by its all-hydraulic bowl operation and an eight-speed semi-automatic transmission. Typical configurations include various bowl types and the optional cushion hitch, with an operating weight range spanning approximately 47.4 tons (empty) to 89 tons (loaded).
The transition from the original 641 to the 641B series introduced critical upgrades, specifically increasing engine output to 550 hp and implementing a more efficient eight-speed semi-automatic transmission to reduce operator workload. This machine remains highly relevant in the used equipment market due to its robust D346 powertrain and proven durability in high-production environments. For fleet managers, the availability of specialized parts for the hydraulic bowl and planetary transmission makes the 641B a viable choice for secondary earthmoving fleets.
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 641B specifications
Engine
| Model | D346 |
| Net Power | 550 hp (410.2 kW) |
| Power Measured @ | 1900 rpm |
| Displacement | 1190 cu in (19.6 L) |
Weights
| Total Operating Weight - Empty | 119,000 lb (53,977.5 kg) |
Dimensions
| Overall Length | 49.08 ft (14,959.59 mm) |
| Overall Width | 13.25 ft (4,038.6 mm) |
| Overall Height | 14.25 ft (4,343.4 mm) |
| Wheelbase | 31 ft (9,448.8 mm) |
Performance
| Max Speed Forward | 32 mph (51.5 km/h) |
| Heaped Bowl Capacity | 28 yd³ (21.5 m³) |
| Struck Bowl Capacity | 38 yd³ (29.1 m³) |
| Max Depth of Cut | 16 in (406.4 mm) |
| Width of Cut | 11.4 ft (3,453.4 mm) |
Service capacities (summary)
| Fuel Capacity | 280 gal (1,060 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
641B fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine Crankcase | Not specified | Cat DEO (SAE 15W-40 or SAE 10W-30); for Tier 4 engines with aftertreatment, use Cat DEO-ULS; for extreme temperatures (-40°C to 50°C), use Cat DEO-ULS SYN |
| Cooling System | Not specified | Cat ELC (50/50 Premix) |
| Transmission/Powertrain | Not specified | Cat TDTO (SAE 10W, SAE 30, or SAE 50); for operations below -25°C, use Cat TDTO Cold Weather |
| Final Drives | Not specified | Cat TDTO (SAE 10W, SAE 30, or SAE 50) |
| Hydraulic System and Tank | Not specified | Cat HYDO Advanced 10 (for SAE 10W/cold to moderate temps) or Cat HYDO Advanced 30 (for SAE 30W/moderate to hot temps) |
| Grease | Not specified | Cat Multipurpose Grease (low-load/low-speed); Cat Advanced 3Moly Grease (medium-load/medium-speed); Cat Ultra 5Moly Grease (high-load/high-speed); Cat Desert Gold Grease (hot-weather); Cat Arctic Platinum Grease (cold-weather) |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 641B maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the 641B beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize Caterpillar S.O.S Services to monitor engine oil, hydraulic fluid, and coolant. Analyze wear metals like iron or copper in the D346 engine oil to detect early bearing or piston ring degradation. Monitor hydraulic oil particle counts to prevent pump failure. Regular coolant analysis is essential to check for SCA concentration and pH levels, preventing internal liner pitting and radiator corrosion.
Corrective & Common Repairs
Frequent repairs often involve the hydraulic bowl components, specifically checking lift cylinders and apron cylinders for leaks. Inspect the air cleaner assembly, as it can partially obscure right-side visibility and impact engine performance. Monitor the transmission for downshift inhibitor functionality. If wheel slippage occurs, inspect the steering brake or differential lock systems, depending on the specific serial number configuration.
Overhaul & Rebuild Points
Major rebuilds should focus on the nine-speed (or eight-speed B-series) planetary transmission and the D346 engine. Evaluate the condition of the hydraulic retarder and air-operated shoe-type brakes during overhaul. Inspect the gooseneck hitch and torque multiplying linkages for structural fatigue. When rebuilding the bowl, replace all high-analysis steel wearing parts and check the integrity of the ejector cylinder and gate-type spillguard.
Seasonal & Environment Servicing
In dusty or quarry environments, check air filters daily and clean radiator fins frequently to prevent overheating. For cold weather operations, use SAE 10W-30 engine oil to ensure reliable starting. In high-load summer conditions, prioritize checking the hydraulic oil temperature and cooling system integrity. Ensure all grease points are serviced with appropriate seasonal lubricants, such as Arctic or Desert grade greases, to maintain pivot mobility.
641B common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 2S-3697 | Oil Filter | Lubrication service | Check fitment → |
| 6H-6000 | Film-Warning Left Side Of Filter Opening On Seat Frame | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
641B fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 110-0 | Engine Coolant Temperature — Above Normal | Low coolant level or thermostat failure | Inspect cooling system and refill coolant |
| 110-3 | Engine Coolant Temp Sensor — Voltage High | Open circuit or sensor failure | Check wiring and replace sensor if faulty |
| 174-3 | Engine Fuel Temperature — Voltage Above Normal | Open circuit in sensor wiring | Inspect harness and replace sensor if necessary |
| 190-8 | Engine Speed — Abnormal Frequency | Speed sensor air gap, sensor failure, or tone ring damage | Check sensor gap and test speed sensor/tone ring |
| 41-3 | 8-Volt DC Supply — Voltage Above Normal | Short to power on 8V reference circuit | Inspect sensors sharing the 8V supply and isolate fault |
| 41-4 | 8-Volt DC Supply — Voltage Below Normal | Short to ground on 8V reference circuit | Disconnect sensors one at a/time to locate short |
| 2348-9 | SAE J1939 Data Link #2 — Abnormal Update Rate | CAN bus wiring damage or termination fault | Check CAN wiring and measure termination resistance |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
641B attachments & work tools
Bowl Configurations
Available arrangements include single-engine and tandem-engine open bowls. Other configurations feature tandem-engine push-pulls and elevator arrangements.
Specialized Scraper Attachments
Auger attachments are available to provide exceptional self-loading capacities for specific materials. The machine can also be configured with coal auger or elevating flight systems.
Mounting and Hitch Systems
Cushion hitch was an optional feature on upgraded 641B models and became standard around 1974. This system is used to mitigate the hard riding nature of these scrapers.
Hydraulic and Control Systems
Modern configurations utilize advanced hydraulic technology, representing a shift away from older cable-operated controls. Use of HYDO Advanced or biodegradable hydraulic oils is recommended for component protection.
Factory Configurations and Guarding
The 641B utilizes a D346 engine providing 550 hp at 1900 rpm. Standard dimensions may vary based on specific machine configuration and attachments.
All 641B assemblies by section
Every catalogued assembly group for the Caterpillar 641B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Attachments
2p3154 Air Conditioner Arrangement--Field Installation
| 1P***22 | Air Conditioner Group | 1 |
| 1P***23 | Console Group-Control | 1 |
| 1P***24 | Return Air Console Group | 1 |
2g370 Air Conditioner Arrangement--Heats And Cools
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 20 |
| 1P***22 | Air Conditioner Group | 1 |
| 1P***23 | Console Group-Control | 1 |
1p3322 Air Conditioner Group--Part 1 Of 3
| 1P***22 | Air Conditioner Group | 1 |
1p3322 Air Conditioner Group--Part 3 Of 3
| 1P***22 | Air Conditioner Group | 1 |
1p3322 Air Conditioner Group--Part 2 Of 3
| 1P***22 | Air Conditioner Group | 1 |
9d9540 Air Conditioner Lines Group
| 9D***40 | Air Conditioner Lines Group | 1 |
9d9970 Air Conditioner Wiring Group
| 9D***70 | Air Conditioner Wiring Group | 1 |
8d4925 Back-Up Warning Arrangement--Factory Installation
| 8D***95 | Back-Up Warning Group | 1 |
| 8D***50 | Back-Up Warning Group | 1 |
| 8D***25 | Back-Up Warning Arrangement | 1 |
8d4930 Back-Up Warning Arrangement--Factory Installation
| 8D***95 | Back-Up Warning Group | 1 |
| 8D***55 | Back-Up Warning Group | 1 |
| 8D***30 | Back-Up Warning Arrangement | 1 |
8d4795 Back-Up Warning Group--Factory Installation--Type 1
| 8D***95 | Back-Up Warning Group | 1 |
8d4795 Back-Up Warning Group--Factory Installation--Type 2
| 8D***95 | Back-Up Warning Group | 1 |
8d4850 Back-Up Warning Group--Factory Installation
| 8D***50 | Back-Up Warning Group | 1 |
8d4855 Back-Up Warning Group--Factory Installation
| 8D***55 | Back-Up Warning Group | 1 |
7d9375 Basic Alarm Group--24 Volt--Type 1
| 7D***75 | Basic Alarm Group | 1 |
7d9375 Basic Alarm Group--24 Volt--Type 2
| 7D***75 | Basic Alarm Group | 1 |
8d9350 Bowl And Apron Control Group--Type 2
| 8D***50 | Bowl And Apron Control Group | 1 |
8d9350 Bowl And Apron Control Group--Type 1
| 8D***50 | Bowl And Apron Control Group | 1 |
6d6365 Brake Shield Group
| 6D***65 | Brake Shield Group | 1 |
9d5616 Cab Door Group
| 9D***16 | Cab Door Group | 1 |
5j5272 Brake Chamber Assembly
| 5J***72 | Chamber As-Brake | 1 |
2p8233 Refrigerant Compressor Group--Type 1
| 2P***33 | Compressor Group-Refrigerant | 1 |
2p8233 Refrigerant Compressor Group--Type 2
| 2P***33 | Compressor Group-Refrigerant | 1 |
3p2103 Condenser Service Door Group
| 3P***03 | Condenser Service Door Group | 1 |
1p3323 Control Console Group
| 1P***23 | Console Group-Control | 1 |
9d630 Dust Cover Group
| 9D***30 | Cover-Dust | 1 |
1p3325 Defroster Duct Group
| 1P***25 | Defroster Duct Group; Defroster Fan Duct Group | 1 |
9d7360 Differential Case Reinforcement Group--Field Installation
| 9D***60 | Differential Case Reinforcement Group | 1 |
9f740 Discharger
| 9F***40 | Discharger Group | 1 |
7d6490 Emergency Starting Receptacle Group
| 7D***90 | Emergency Start Receptacle Group | 1 |
7d5360 Ether Starting Aid Group
| 7D***60 | Ether Starting Aid Group | 1 |
9s6716 Fan Assembly--Reversible Blade
| 9S***16 | Fan Assembly | 1 |
5d2856 Defroster Fan Group--24 Volt
| 5D***56 | Fan Group-Defrosting | 1 |
7d8940 Fast Fill Fuel Adapter Group--Type 2
| 7D***40 | Fast Fill Fuel Adapter Group | 1 |
9d3950 Fast Fill Fuel Adapter Group
| 9D***50 | Fast Fill Fuel Adapter Group | 1 |
7d5730 Fast Fill Fuel Adapter Group
| 7D***30 | Fast Fill Fuel Adapter Group | 1 |
8d8500 Fast Fill Fuel Adapter Group
| 8D***00 | Fast Fill Fuel Adapter Group | 1 |
7d8940 Fast Fill Fuel Adapter Group--Type 1
| 7D***40 | Fast Fill Fuel Adapter Group | 1 |
8d8500 Fast Fill Fuel Adapter Group--Type 2
| 8D***00 | Fast Fill Fuel Adapter Group | 1 |
7d8940 Fast Fill Fuel Adapter Group--Type 3
| 7D***40 | Fast Fill Fuel Adapter Group | 1 |
7d6000 Fast Fill Fuel Adapter Group
| 7D***00 | Fuel Tank Adapter Group | 1 |
8f9866 Grease Gun
| 8F***66 | Grease Gun As | 1 |
8d8145 Vandalism Guard Group
| 8D***45 | Guard Group-Vandalism; Vandalism Guard Group | 1 |
7d8770 High Speed Oil Change Group--Type 2
| 7D***70 | High Speed Oil Change Group | 1 |
7d8770 High Speed Oil Change Group--Type 1
| 7D***70 | High Speed Oil Change Group | 1 |
7j6180 Hitch And Steering Arrangement
| 5J***49 | Steering Cylinder Group | 2 |
| 5J***06 | Servo-Master Steering Cylinder Group | 1 |
| 5J***57 | Lines Group-Steering | 1 |
7j6181 Hitch And Steering Group--Part 1 Of 2--Type 2
| 7J***81 | Hitch And Steering Group | 1 |
7j6181 Hitch And Steering Group--Part 2 Of 2
| 7J***81 | Hitch And Steering Group | 1 |
7j6181 Hitch And Steering Group--Part 1 Of 2
| 7J***81 | Hitch And Steering Group | 1 |
7j6181 Hitch And Steering Group--Part 2 Of 2--Type 2
| 7J***81 | Hitch And Steering Group | 1 |
8j9204 Hitch Reinforcement Group--Field Installation
| 7D***98 | Boss | 4 |
| 8J***04 | Hitch Reinforcement Group | 1 |
7d4399 Hitch, Steering And Hydraulic Arrangement
| 7D***99 | Hitch Steering And Hydraulic Arrangement | 1 |
| 7D***01 | Scraper Hitch Lines Group | 1 |
| 7D***03 | Miscellaneous Parts Group | 1 |
7d4398 Hitch, Steering And Hydraulic Arrangement
| 7D***98 | Hitch Steering And Hydraulic Arrangement | 1 |
| 7D***01 | Scraper Hitch Lines Group | 1 |
| 7D***03 | Miscellaneous Parts Group | 1 |
8d4025 Hood Side Door Group
| 8D***25 | Hood Side Door Group | 1 |
7d4440 Hood Side Door Group
| 7D***40 | Hood Side Door Group | 1 |
8d5317 Hose Assembly
| 3S***06 | Sleeve Assem. | 2 |
| 7S***69 | Stem Assem. (.50" Thread) | 1 |
| 8D***17 | Hose As | 1 |
2p5167 Jacket Water Heater Group--Type 2
| 2P***67 | Jacket Water Heater Group | 1 |
2p5167 Jacket Water Heater Group
| 2P***67 | Jacket Water Heater Group | 1 |
1m1882 Flood Lamp Assembly--Type 2
| 1M***82 | Lamp Group | 1 |
1m1882 Flood Lamp Assembly--Type 1
| 1M***82 | Lamp Group | 1 |
7d1180 Light Signal Receiver Group
| 7D***80 | Light Signal Receiver Group | 1 |
7d4403 Miscellaneous Parts Group--Non-Cushion Hitch
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 3 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 3B***06 | Washer,Lock; Flange,Elbow,Clamp Assembly,Tube To Pump,Tube Assembly To Screen,Clip Mounting,And Tube Assembly To Transmission | 3 |
2p3153 Mounting Modifications Group--Part 2 Of 3
| 2P***53 | Mounting Modifications Group; Air Conditioning Mounting Modifications Group | 1 |
2p3153 Mounting Modifications Group--Part 3 Of 3
| 2P***53 | Mounting Modifications Group; Air Conditioning Mounting Modifications Group | 1 |
2p3153 Mounting Modifications Group--Part 1 Of 3
| 2P***53 | Mounting Modifications Group; Air Conditioning Mounting Modifications Group | 1 |
Name Plates And Transfers
| 1P***81 | Plate--Hydraulic Retarder | 1 |
| 1S***88 | Film-- Drain Valve; --On Each Side Of Radiator Support | 2 |
| 1S***12 | Plate; Transportation Notice Below Cab Door Sil Near L.H. Side Of Platform Support | 1 |
7d5940 Parking Brake Control Arrangement--For Use With
| 7D***20 | Parking Brake Control Group | 1 |
| 7D***40 | Parking Brake Control Arrangement | 1 |
| 7J***07 | Parking Brake Control Group | 1 |
8d9320 Parking Brake Control Arrangement--For Use With 641 Scraper
| 7J***07 | Parking Brake Control Group | 1 |
| 8D***00 | Parking Brake Control Group | 1 |
| 8D***20 | Parking Brake Control Arrangement | 1 |
8d9330 Parking Brake Control Arrangement--For Use With 651 Scraper
| 7J***10 | Parking Brake Control Group | 1 |
| 8D***00 | Parking Brake Control Group | 1 |
| 8D***30 | Parking Brake Control Arrangement | 1 |
7d5950 Parking Brake Control Arrangement--For Use With
| 7D***20 | Parking Brake Control Group | 1 |
| 7D***50 | Parking Brake Control Arrangement | 1 |
| 7J***10 | Parking Brake Control Group | 1 |
8d9300 Parking Brake Control Group--Part 1 Of 2
| 8D***00 | Parking Brake Control Group | 1 |
7j7210 Parking Brake Control Group--Type 1
| 7J***10 | Parking Brake Control Group | 1 |
7j5107 Parking Brake Control Group--Type 2
| 7J***07 | Parking Brake Control Group | 1 |
7d5920 Parking Brake Control Group--Part 1 Of 2--Type 2
| 7D***20 | Parking Brake Control Group | 1 |
7d5920 Parking Brake Control Group--Part 2 Of 2--Type 1
| 7D***20 | Parking Brake Control Group | 1 |
7j5107 Parking Brake Control Group--Type 1
| 7J***07 | Parking Brake Control Group | 1 |
7d5920 Parking Brake Control Group--Part 1 Of 2--Type 1
| 7D***20 | Parking Brake Control Group | 1 |
7d5920 Parking Brake Control Group--Part 2 Of 2--Type 2
| 7D***20 | Parking Brake Control Group | 1 |
7j7210 Parking Brake Control Group--Type 2
| 7J***10 | Parking Brake Control Group | 1 |
8d9300 Parking Brake Control Group--Part 2 Of 2
| 8D***00 | Parking Brake Control Group | 1 |
8s6845 Grid Group
| 8S***45 | Radiator Core Grid Group | 1 |
2d284 Rear Flood Light Group
| 2D***84 | Rear Flood Light Group | 1 |
2p8713 Refrigerant Compressor Group--Type 2
| 2P***13 | Refrigerant Compressor Group | 1 |
2p8713 Refrigerant Compressor Group
| 2P***13 | Refrigerant Compressor Group | 1 |
4f6941 Release Valve Assembly
| 4F***41 | Release Valve Assembly | 1 |
1p3324 Return Console Group
| 1P***24 | Return Air Console Group | 1 |
8d990 Roll-Over Protective Structure Frame And Case Group--Factory Installation--Type 1
| 8D***90 | Roll-Over Protective Structure Frame And Case Group | 1 |
9d990 Roll-Over Protective Structure Frame And Case Group--Factory Installation--Type 2
| 8D***90 | Roll-Over Protective Structure Frame And Case Group | 1 |
8d8750 Roll-Over Protective System--Open--Type 2
| 8D***50 | Roll-Over Protective Structure Group | 1 |
8d9875 Roll-Over Protective Structure Group--Noise Suppressed--
| 8D***75 | Roll-Over Protective Structure Group | 1 |
8d9875 Roll-Over Protective System--Noise Suppressed--Part 2 Of 3
| 8D***75 | Roll-Over Protective Structure Group | 1 |
8d9875 Roll-Over Protective System--Noise Suppressed--Part 1 Of 3
| 8D***75 | Roll-Over Protective Structure Group | 1 |
8d8750 Roll-Over Protective System--Open--Type 3
| 8D***50 | Roll-Over Protective Structure Group | 1 |
8d8750 Roll-Over Protective System--Open--Type 1
| 8D***50 | Roll-Over Protective Structure Group | 1 |
8d9875 Roll-Over Protective System--Noise Suppressed--Part 3 Of 3
| 8D***75 | Roll-Over Protective Structure Group | 1 |
8d4210 Roll-Over Protective Structure Mounting Group--Field Installation--Part 2 Of 2
| 8D***10 | Roll-Over Protective Structure Mounting Group | 1 |
8d6920 Roll-Over Protective Structure Mounting Group--Field Installation--Part 2 Of 2
| 8D***20 | Roll-Over Protective Structure Mounting Group | 1 |
8d6920 Roll-Over Protective Structure Mounting Group--Field Installation--Part 1 Of 2
| 8D***20 | Roll-Over Protective Structure Mounting Group | 1 |
8d6770 Roll-Over Protective Structure Mounting Group--Field Installation--Part 2 Of 2
| 8D***70 | Roll-Over Protective Structure Mounting Group | 1 |
8d4210 Roll-Over Protective Structure Mounting Group--Field Installation--Part 1 Of 2
| 8D***10 | Roll-Over Protective Structure Mounting Group | 1 |
8d6770 Roll-Over Protective Structure Mounting Group--Field Installation--Part 1 Of 2
| 8D***70 | Roll-Over Protective Structure Mounting Group | 1 |
9d660 Roll-Over Protective System--Field Installation
| 9D***60 | Roll-Over Protective System | 1 |
Roll-Over Protective Structure (9d5613 N/S)--Enclosed--Part 2 Of 2
| 9D***13 | Rops Group | 1 |
Roll-Over Protective Structure (9d5613 N/S)--Enclosed--Part 1 Of 2
| 9D***13 | Rops Group | 1 |
5d3306 Rotochamber Assembly
| 5D***06 | Rotochamber Assembly | 1 |
7d4401 Scraper Hitch Lines Group--Part 1 Of 2--Type 2
| 7D***01 | Scraper Hitch Lines Group | 1 |
7d4401 Scraper Hitch Lines Group--Part 2 Of 2
| 7D***01 | Scraper Hitch Lines Group | 1 |
7d4401 Scraper Hitch Lines Group--Part 2 Of 2--Type 2
| 7D***01 | Scraper Hitch Lines Group | 1 |
7d4401 Scraper Hitch Lines Group--Part 1 Of 2
| 7D***01 | Scraper Hitch Lines Group | 1 |
9k682 Shaft And Link Assembly
| 9K***82 | Shaft & Link As | 1 |
7d6345 Brake Shield Group
| 7D***45 | Shield Group-Brake | 1 |
7j3203 Bowl And Apron Control Group
| 7J***03 | Single Lever Bowl Control Group | 1 |
9s7978 Tool Group
| 9S***78 | Tool Group-Hand | 1 |
9d305 Transmission Guard Group--Field Installation
| 9D***05 | Transmission Guard Group | 1 |
8d2810 Transmission Guard Group
| 8D***10 | Transmission Guard Group | 1 |
6d3782 Emergency Control Valve Assembly
| 6D***82 | Valve As; -- Emergency Control | 1 |
2r618 Double Check Valve Group
| 2R***18 | Valve As-Check | 1 |
4j8500 Control Valve Assembly
| 4J***00 | Valve As-Control | 1 |
8d4180 Vandalism Protection Arrangement
| 2S***25 | Cover Group-Protection; Protection Cover Group | 1 |
| 2S***96 | Cover Group-Protection; Protection Cover Group-- Radiator Cap | 1 |
| 5D***00 | Cover Group-Protection; Protection Cover Group-- Hydraulic Tank Cap | 1 |
7d4710 Vandalism Guard Group--Type 1
| 7D***10 | Vandalism Protection Group; Vandalism Guard Group | 1 |
7d4710 Vandalism Guard Group--Type 2
| 7D***10 | Vandalism Protection Group; Vandalism Guard Group | 1 |
8d290 Wheel And Tire Group--Field Installation
| 8D***90 | Wheel And Tire Group | 1 |
7d4500 Wheel And Tire Group
| 7D***00 | Wheel And Tire Group | 1 |
Windshield
8d1452 Wiper Group--24 Volt
| 8D***52 | Windshield Wiper Group | 1 |
6d9750 Windshield Wiper Group
| 6D***50 | Windshield Wiper Group | 1 |
1v3079 Basic Wiper Group--24 Volt
| 1V***79 | Wiper Group | 1 |
1v4358 Basic Wiper Group--24 Volt
| 1V***58 | Wiper Group; Basic Wiper Group | 1 |
Diesel Engine
Aftercooler (9s6748 N/S)
| 9S***48 | Aftercooler Group | 1 |
Air Cleaner (5d9530 N/S)--Top View
| 5D***30 | Air Cleaner Group | 1 |
2s2764 Air Compressor Assembly
| 2S***64 | Air Compressor Assembly | 1 |
1p5013 Air Compressor Group--Type 2
| 1P***13 | Air Compressor Group | 1 |
Air Compressor (2s3707 N/S)
| 2S***07 | Air Compressor Group | 1 |
1p5013 Air Compressor Group
| 1P***13 | Air Compressor Group | 1 |
7m914 Air Filter Service Indicator Group
| 7M***14 | Air Filter Service Indicator Group | 1 |
Air Lines (8s724 N/S)
| 8S***24 | Air Lines | 1 |
Alternator (7s8847 N/S)--24 Volt, 50 Ampere
| 7S***47 | Alternator Group-Charging; Alternator Group | 1 |
5s9088 Alternator Assembly--Part 2 Of 2
| 5S***88 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--Part 1 Of 2
| 5S***88 | Alternator Group-Charging | 1 |
Battery, Wiring And Lighting (6d7050 N/S)--24 Volt--Part 2 Of 2
| 6D***50 | Battery Wiring And Lighting | 1 |
Battery, Wiring And Lighting (6d7050 N/S)--24 Volt--Part 3 Of 3
| 6D***50 | Battery Wiring And Lighting | 1 |
Battery, Wiring And Lighting (6d7050 N/S)--24 Volt--Part 1 Of 3
| 6D***50 | Battery Wiring And Lighting | 1 |
6d7050 Battery, Wiring And Lighting Group--24 Volt--Part 3 Of 3
| 6D***50 | Battery Wiring And Lighting | 1 |
Battery, Wiring And Lighting (6d7050 N/S)--24 Volt--Part 1 Of 2
| 6D***50 | Battery Wiring And Lighting | 1 |
6d7050 Battery, Wiring And Lighting Group--24 Volt--Part 2 Of 3
| 6D***50 | Battery Wiring And Lighting | 1 |
Battery, Wiring And Lighting (6d7050 N/S)--24 Volt--Part 2 Of 3
| 6D***50 | Battery Wiring And Lighting | 1 |
6d7050 Battery, Wiring And Lighting Group--24 Volt--Part 1 Of 3
| 6D***50 | Battery Wiring And Lighting | 1 |
6n1674 Bearing And Rod Kit--Field Installation
| 4N***86 | Tube Assembly | 8 |
| 4N***00 | Bearing Connecting Rod | 8 |
| 4N***01 | Rod Assembly - Odd Cylinder; (Odd Cyl.) | 4 |
8s6180 Breather Group
| 8S***80 | Breather Group; Breather And Fumes Disposal Group | 1 |
1p1183 Exhaust By-Pass Group
| 1P***83 | Bypass Group-Exhaust; Exhaust By-Pass Group | 1 |
Camshaft (3s3982 N/S)--Part 2 Of 2
| 3S***82 | Camshaft Group; Camshaft Group | 1 |
Camshaft (3s3982 N/S)--Part 1 Of 2
| 3S***82 | Camshaft Group; Camshaft Group | 1 |
2s708 Connecting Rod And Piston Group--8 Required
| 2S***08 | Connecting Rod And Piston; Connecting Rod And Piston Group | 1 |
8s6419 Fuel Ratio Control Group--With Override
| 8S***19 | Control Group-Fuel Ratio; Fuel Ratio Control Group (With Override) | 1 |
2p8708 Fuel Ratio Control Group
| 2P***08 | Control Group-Fuel Ratio; Fuel Ratio Control Group | 1 |
Governor Control (6d5130 N/S)
| 6D***30 | Control Group-Governor | 1 |
6d5130 Governor Control Group
| 6D***30 | Control Group-Governor | 1 |
2s6096 Protection Cover Group--Radiator Cap
| 2S***96 | Cover Group-Protection; Protection Cover Group-- Radiator Cap | 1 |
2s3025 Protection Cover Group--Oil Filler Cap
| 2S***25 | Cover Group-Protection; Protection Cover Group | 1 |
Crankshaft Bearing Replacement Groups
Crankshaft (2s3686 N/S)
| 2S***86 | Crankshaft Group; Crankshaft Group | 1 |
Cylinder Block And Covers (2s3687 N/S)--Side View--Part 3 Of 3
| 2S***87 | Cylinder Block And Covers Group | 1 |
2s3687 Cylinder Block And Covers Group--Front View--Part 1 Of 3
| 2S***87 | Cylinder Block And Covers Group | 1 |
Cylinder Block And Covers (2s3687 N/S)--Rear View--Part 2 Of 3
| 2S***87 | Cylinder Block And Covers Group | 1 |
Cylinder Block And Covers (2s3687 N/S)--Front View--Part 1 Of 3
| 2S***87 | Cylinder Block And Covers Group | 1 |
2s3687 Cylinder Block And Covers Group--Rear View--Part 2 Of 3
| 2S***87 | Cylinder Block And Covers Group | 1 |
2s3687 Cylinder Block And Covers Group--Side View--Part 3 Of 3
| 2S***87 | Cylinder Block And Covers Group | 1 |
8s6801 Cylinder Block Assembly--Type 1
| 8S***01 | Cylinder Block Assembly | 1 |
8s6801 Cylinder Block Assembly--Type 2
| 8S***01 | Cylinder Block Assembly | 1 |
8s6801 Cylinder Block Assembly
| 8S***01 | Cylinder Block Assembly | 1 |
4n4086 Cylinder Block Assembly
| 4N***86 | Cylinder Block Assembly | 1 |
Cylinder Head And Valve Mechanism (8s6461 N/S)--Part 2 Of 2
| 8S***61 | Cylinder Head Group | 1 |
8s6461 Cylinder Head And Valve Mechanism Group--End View Part 2 Of 2
| 8S***61 | Cylinder Head Group | 1 |
Cylinder Head And Valve Mechanism (8s6461 N/S)--Side View Part 1 Of 2
| 8S***61 | Cylinder Head Group | 1 |
8s6461 Cylinder Head And Valve Mechanism Group--Side View Part 1 Of 2
| 8S***61 | Cylinder Head Group | 1 |
Cylinder Head And Valve Mechanism (8s6461 N/S)--Part 1 Of 2
| 8S***61 | Cylinder Head Group | 1 |
Cylinder Head And Valve Mechanism (8s6461 N/S)--End View Part 2 Of 2
| 8S***61 | Cylinder Head Group | 1 |
Drive Pulley And Damper (8s6403 N/S)
| 8S***03 | Damper & Pulley Group | 1 |
5m1618 Dash Lamp Assembly
| 5M***18 | Dash Lamp Assembly | 1 |
1p3162 Differential Pressure Regulator Assembly--Type 2
| 1P***62 | Differential Pressure Regulator Assembly | 1 |
1p3162 Differential Pressure Regulator Assembly--Type 1
| 1P***62 | Differential Pressure Regulator Assembly | 1 |
4n6680 Variable Timing Drive Assembly
| 4N***80 | Drive As-Variable Timing | 1 |
Air Compressor Drive (2s4244 N/S)
| 2S***44 | Drive Group-Air Compressor; Air Compressor Drive Group | 1 |
1m5061 Tachometer Drive Group
| 1M***61 | Drive Group-Tachometer | 1 |
Engine Oil Cooler
Engine Support (2s728 N/S)
| 2S***28 | Engine Support Group | 1 |
Exhaust By-Pass (2s3690 N/S)
| 2S***90 | Exhaust By-Pass | 1 |
Fan And Guard
8s6404 Fan Drive Group
| 8S***04 | Fan Drive Group | 1 |
4s8407 Fuel Filter Group
| 4S***07 | Filter Group-Fuel; Fuel Filter Group | 1 |
8h7204 Primary Fuel Filter Group
| 8H***04 | Filter Group-Fuel | 1 |
Oil Filter (2p5588 N/S)
| 2P***88 | Filter Group-Oil; Oil Filter Group | 1 |
2s3261 Flywheel Group
| 2S***61 | Flywheel Group | 1 |
4n6714 Fuel Injection Pump Group--Part 2 Of 2
| 4N***14 | Fuel Injection Pump Group | 1 |
8s206 Fuel Pump Housing Group--Part 2 Of 2
| 8S***06 | Fuel Injection Pump Group | 1 |
4n6714 Fuel Injection Pump Group--Part 1 Of 2
| 4N***14 | Fuel Injection Pump Group | 1 |
8s206 Fuel Pump Housing Group--Part 1 Of 2
| 8S***06 | Fuel Injection Pump Group | 1 |
1p2297 Fuel Priming Pump Assembly
| 1P***97 | Fuel Priming Pump Assembly | 1 |
6d5010 Fuel System Group--280 U.S. Gallon
| 6D***10 | Fuel System Group | 1 |
Fuel System (6d5010 N/S)--280 U.S. Gallon
| 6D***10 | Fuel System Group | 1 |
Fuel Tank (9d2050 N/S)
| 9D***50 | Fuel Tank Group | 1 |
8s199 Fuel Transfer Pump Group
| 8S***99 | Fuel Transfer Pump Group | 1 |
9s5167 Fumes Disposal Group
| 9S***67 | Fumes Disposal Group | 1 |
Gasket Kits
| 1P***69 | Complete Diesel Engine Overhaul | 0 |
| 1P***70 | Valve Grinding | 0 |
| 1P***72 | Transmission Overhaul | 0 |
9s5002 Governor Control Lever Service Group
| 9S***02 | Governor Control Lever Service Group | 1 |
4n3660 Governor Group--Part 1 Of 3
| 4N***60 | Governor Group | 1 |
8s6420 Governor Group--Part 2 Of 3--Type 2
| 8S***20 | Governor Group | 1 |
8s6420 Governor Group--Part 1 Of 3--Type 1
| 8S***20 | Governor Group | 1 |
8s6420 Governor Group--Part 2 Of 3--Type 1
| 8S***20 | Governor Group | 1 |
2p8687 Governor Group--Part 3 Of 3
| 2P***87 | Governor Group | 1 |
8s6420 Governor Group--Part 3 Of 3--Type 1
| 8S***20 | Governor Group | 1 |
2p8687 Governor Group--Part 2 Of 3
| 2P***87 | Governor Group | 1 |
4n3660 Governor Group--Part 3 Of 3
| 4N***60 | Governor Group | 1 |
4n3660 Governor Group--Part 2 Of 3
| 4N***60 | Governor Group | 1 |
8s6420 Governor Group--Part 3 Of 3--Type 2
| 8S***20 | Governor Group | 1 |
8s6420 Governor Group--Part 1 Of 3--Type 3
| 8S***20 | Governor Group | 1 |
8s6420 Governor Group--Part 1 Of 3--Type 2
| 8S***20 | Governor Group | 1 |
2p8687 Governor Group--Part 1 Of 3
| 2P***87 | Governor Group | 1 |
8s6420 Governor Group--Part 3 Of 3--Type 3
| 8S***20 | Governor Group | 1 |
8s6420 Governor Group--Part 2 Of 3--Type 3
| 8S***20 | Governor Group | 1 |
9s7000 Governor Torque Spring Group--Type 1
| 9S***00 | Governor Torque Spring | 1 |
9s7000 Governor Torque Spring Group--Type 2
| 9S***00 | Governor Torque Spring | 1 |
8d9094 Harness Assembly
| 8D***94 | Harness Assembly | 1 |
6d9723 Harness Assembly
| 6D***23 | Harness Assembly | 1 |
Idler Gears (2s3701 N/S)--Front View Part 2 Of 2
| 2S***01 | Idler Gear Group; Idler Gears-Balancer, Camshaft, Fuel Pump And Oil Pump Group | 1 |
Idler Gears (2s3701 N/S)--Rear View Part 1 Of 2
| 2S***01 | Idler Gear Group; Idler Gears-Balancer, Camshaft, Fuel Pump And Oil Pump Group | 1 |
5s5147 Head Lamp Group--24 Volt--Type 1
| 5S***47 | Lamp Group | 1 |
1m3387 Dash Lamp Assembly
| 1M***87 | Lamp Group | 1 |
5s5147 Head Lamp Group--24 Volt--Type 2
| 5S***47 | Lamp Group | 1 |
1m3379 Head Lamp Assembly--24 Volt--Type 1
| 1M***79 | Lamp Group | 1 |
1m3379 Head Lamp Assembly--24 Volt--Type 2
| 1M***79 | Lamp Group | 1 |
2s3692 Fuel Injection Valves And Lines Group--Part 2 Of 2
| 2S***92 | Lines Group-Fuel Injection | 1 |
Fuel Injection Valves And Lines (2s3692 N/S)--Part 2 Of 2
| 2S***92 | Lines Group-Fuel Injection | 1 |
2s3692 Fuel Injection Valves And Lines Group--Part 1 Of 2
| 2S***92 | Lines Group-Fuel Injection | 1 |
Fuel Injection Valves And Lines (2s3692 N/S)--Part 1 Of 2
| 2S***92 | Lines Group-Fuel Injection | 1 |
3s5520 Oil Lines Group--Part 2 Of 2
| 3S***20 | Lines Group-Oil; Oil Lines Group | 1 |
Oil Lines (3s5520 N/S)--Part 1 Of 2
| 3S***20 | Lines Group-Oil; Oil Lines Group | 1 |
Oil Lines (3s5520 N/S)--Part 2 Of 2
| 3S***20 | Lines Group-Oil; Oil Lines Group | 1 |
3s5520 Oil Lines Group--Part 1 Of 2
| 3S***20 | Lines Group-Oil; Oil Lines Group | 1 |
Manifolds (2s3695 N/S)--Side View Part 1 Of 2
| 2S***95 | Manifold Group | 1 |
Manifolds (2s3695 N/S)--End View Part 2 Of 2
| 2S***95 | Manifold Group | 1 |
9s8965 Muffler Group
| 9S***65 | Muffler Group | 1 |
2p3343 Muffler Group--Type 1
| 2P***43 | Muffler Group | 1 |
Muffler (9s8965 N/S)
| 9S***65 | Muffler Group | 1 |
2p3343 Muffler Group--Type 2
| 2P***43 | Muffler Group | 1 |
Oil Filter (2s3697 N/S)
| 2S***97 | Oil Filter | 1 |
3p52 Oil Filter Group--Field Installation
| 3P***52 | Oil Filter Group | 1 |
5s1565 Oil Pump Assembly
| 5S***65 | Oil Pump Assembly | 1 |
Oil Pump (3s8295 N/S)
| 3S***95 | Oil Pump Group | 1 |
4n8952 Connecting Rod And Piston Group--4 Required
| 4N***52 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
Glow Plug And Wiring (2s3704 N/S)--24 Volt
| 2S***04 | Plug & Wiring Group-Glow; Glow Plug And Wiring Group | 1 |
9s5010 Pressure Ratio Regulator Assembly
| 9S***10 | Pressure Ratio Regulator Assembly | 1 |
5d1920 Protection Cover Group--Fuel Tank Cap
| 5D***20 | Protection Cover Group-Fuel Tank Cap; Protection Cover Group | 1 |
Fuel Pump Housing, Drive And Governor (8s6460 N/S)
| 8S***60 | Pump-Drive & Governor Group; Fuel Injection Pump, Drive & Governor Group | 1 |
8s6460 Fuel Pump Housing, Drive And Governor Group
| 8S***60 | Pump-Drive & Governor Group; Fuel Injection Pump, Drive & Governor Group | 1 |
Radiator (8s6415 N/S)--Side View Part 2 Of 2
| 8S***15 | Radiator | 1 |
Radiator (8s6415 N/S)--Rear View Part 1 Of 2
| 8S***15 | Radiator | 1 |
5d8990 Radiator Guard And Support Group
| 5D***90 | Radiator Guard & Support Group | 1 |
1p666 Regulator Group
| 1P***66 | Regulator Group | 1 |
Service Meter And Tachometer Drive (1p1200 N/S)
| 1P***00 | Service Meter And Tachometer Drive Group | 1 |
Service Meter And Tachometer Drive (4s7894 N/S)
| 4S***94 | Service Meter And Tachometer Drive Group | 1 |
Service Meter And Tachometer Drive (9s1265 N/S)
| 9S***65 | Service Meter And Tachometer Drive Group | 1 |
4s7893 Service Meter Group
| 4S***93 | Service Meter Group | 1 |
4n4358 Governor Torque Spring Group
| 4N***58 | Spring Group-Governor Torque; Governor Torque Spring Group | 1 |
Electric Starter (2s7227 N/S)--24 Volt
| 2S***27 | Starter Group-Electric; Electric Starter Group | 1 |
5l5353 Electric Starting Motor Assembly--24 Volt--Part 2 Of 2
| 5L***53 | Starting Motor As | 1 |
5l5353 Electric Starting Motor Assembly--24 Volt--Part 1 Of 2
| 5L***53 | Starting Motor As | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 1 Of 2--Type 1
| 5L***48 | Starting Motor As-Electric | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 2 Of 2--Type 1
| 5L***48 | Starting Motor As-Electric | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 1 Of 2--Type 2
| 5L***48 | Starting Motor As-Electric | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 2 Of 2--Type 2
| 5L***48 | Starting Motor As-Electric | 1 |
4n3349 Electric Starting Motor Group--24 Volt--Part 2 Of 2
| 4N***49 | Starting Motor Group-Electric | 1 |
4n3349 Electric Starting Motor Group--24 Volt--Part 1 Of 2
| 4N***49 | Starting Motor Group-Electric | 1 |
2s9519 Rack Stop Group--Type 1
| 2S***19 | Stop Group-Rack | 1 |
2s9519 Rack Stop Group--Type 2
| 2S***19 | Stop Group-Rack | 1 |
2s9519 Rack Stop Group--Type 3
| 2S***19 | Stop Group-Rack | 1 |
7h7290 Disconnect Switch Assembly
| 7H***90 | Switch As-Disconnect | 1 |
4m1812 Solenoid Switch Assembly
| 4M***12 | Switch As-Solenoid | 1 |
6n5123 Solenoid Switch Assembly
| 6N***23 | Switch As-Solenoid | 1 |
Transmission Oil Cooler
8s3681 Turbocharger Assembly
| 8S***81 | Turbocharger As | 1 |
4s9498 Variable Timing Drive Assembly
| 4S***98 | Varible Timing Drive Assembly | 1 |
Water Lines (8s6416 N/S)--Rear View Part 2 Of 2
| 8S***16 | Water Lines Group | 1 |
Water Lines (8s6416 N/S)--Side View Part 1 Of 2
| 8S***16 | Water Lines Group | 1 |
3s4730 Water Pump Group
| 3S***30 | Water Pump Group | 1 |
Wiring Diagram--24 Volt System
Transmission And Chassis
5j9231 Accumulator Group
| 5J***31 | Accumulator Group | 1 |
8s9121 Accumulator Group
| 8S***21 | Accumulator Group | 1 |
6j6664 Accumulator Lines Group
| 6J***64 | Accumulator Lines Group | 1 |
Air And Brake Controls (6d5110 N/S)--As Viewed From Front Left Hand Side Of Machine
| 6D***10 | Air And Brake Controls Group | 1 |
Air And Brake Control (6d5110 N/S)--As Viewed From L.H. Side Of Machine
| 6D***10 | Air And Brake Controls Group | 1 |
Air Tank, Valves And Lines
9s2822 Automatic Selector Valve Group
| 9S***22 | Automatic Selector Valve Group | 1 |
Brakes (4j8027 N/S)
| 4J***27 | Brake Group | 1 |
8s6413 Retarder Oil Cooler Group
| 8S***13 | Brake Oil Cooler Group | 1 |
Retarder Oil Cooler (8s6413 N/S)
| 8S***13 | Brake Oil Cooler Group | 1 |
5d3640 Brake Valve Assembly
| 5D***40 | Brake Valve Assembly | 1 |
Brake Valve, Valves And Lines
6d5070 Bumper Group--Part 2 Of 2
| 6D***70 | Bumper | 1 |
Bumper (6d5070 N/S)--Part 2 Of 2
| 6D***70 | Bumper | 1 |
6d5070 Bumper Group--Part 1 Of 2
| 6D***70 | Bumper | 1 |
Bumper (6d5070 N/S)--Part 1 Of 2
| 6D***70 | Bumper | 1 |
Differential Case And Covers (5d9330 N/S)--Part 2 Of 2
| 5D***30 | Case & Covers Group | 1 |
5d9330 Differential Case And Covers Group--Part 1 Of 2
| 5D***30 | Case & Covers Group | 1 |
Differential Case And Covers (5d9330 N/S)--Part 1 Of 2
| 5D***30 | Case & Covers Group | 1 |
5d9330 Differential Case And Covers Group--Part 2 Of 2
| 5D***30 | Case & Covers Group | 1 |
Transmission Case And Covers (3p272 N/S)
| 3P***72 | Case & Covers Group-Tmsn | 1 |
6j349 Check Valve Group
| 6J***49 | Check Valve Group | 1 |
5d1900 Protection Cover Group--Hydraulic Tank Cap
| 5D***00 | Cover Group-Protection; Protection Cover Group-- Hydraulic Tank Cap | 1 |
Crankcase And Lines Guard (5d9180 N/S)
| 5D***80 | Crankcase Guard Group | 1 |
5d9180 Crankcase And Lines Guard Group
| 5D***80 | Crankcase Guard Group | 1 |
9d8570 Crankcase Guard Service Group--Heavy Duty
| 9D***70 | Crankcase Guard Service Group | 1 |
7j4420 Cushion Hitch Lines
| 7J***20 | Cushion Hitch Lines Group | 1 |
Differential And Bevel Gear (6d8550 N/S)--Part 1 Of 2
| 6D***50 | Differential & Bevel Gear Group | 1 |
Differential And Bevel Gear (6d8550 N/S)--Part 2 Of 2
| 6D***50 | Differential & Bevel Gear Group | 1 |
6d8540 Differential Group
| 6D***40 | Differential Group | 1 |
8d5620 Differential Group
| 8D***20 | Differential Group | 1 |
8d310 Differential Group
| 8D***10 | Differential Group | 1 |
8d5720 Differential Group
| 8D***20 | Differential Group | 1 |
Drive Shaft (5d8160 N/S)
| 5D***60 | Drive Shaft | 1 |
8d2505 Drive Shaft Group
| 8D***05 | Drive Shaft Group | 1 |
7d180 Drive Shaft Guard Group
| 7D***80 | Drive Shaft Guard | 1 |
Emergency Brake Control (7d4950 N/S)--Part 2 Of 2
| 7D***50 | Emergency Brake Control Group | 1 |
7d4950 Emergency Brake Control Group--Part 1 Of 2
| 7D***50 | Emergency Brake Control Group | 1 |
Emergency Brake Control (7d4950 N/S)--Part 1 Of 2
| 7D***50 | Emergency Brake Control Group | 1 |
7d4950 Emergency Brake Control Group--Part 2 Of 2
| 7D***50 | Emergency Brake Control Group | 1 |
7j100 External Control Valve Group
| 7J***00 | External Control Valve Group | 1 |
Fenders
7j680 Hydraulic Oil Filter Group
| 7J***80 | Filter Group-Hydraulic Oil | 1 |
6j5470 Hydraulic Oil Filter Group
| 6J***70 | Filter Group-Oil; -Hydraulic | 1 |
2s6457 Transmission Filter Group
| 2S***57 | Filter Group-Transmission; (Transmission) | 1 |
7j2231 Flow Control And Relief Valve Group--Type 1
| 7J***31 | Flow Control And Relief Valve Group | 1 |
7j2231 Flow Control And Relief Valve Group--Type 3
| 7J***31 | Flow Control And Relief Valve Group | 1 |
7j2231 Flow Control And Relief Valve Group
| 7J***31 | Flow Control And Relief Valve Group | 1 |
7j2231 Flow Control And Relief Valve Group--Type 2
| 7J***31 | Flow Control And Relief Valve Group | 1 |
2g3075 Front Bumper Pull Pin Group
| 2G***08 | Plate 61 In. Long Center Hole | 2 |
| 2G***09 | Plate 26.62 In. Long Solid | 2 |
| 2G***72 | Plate 10 In. Long Center Hole | 2 |
Final Drive And Wheels (5d7520 N/S)--33.50 X 39 Tubeless Tires
| 5D***20 | Fuel System | 1 |
Gauges (6d5080 N/S)
| 6D***80 | Gauge Group | 1 |
6d5080 Gauges Group
| 6D***80 | Gauge Group | 1 |
Steering Gear (6d5140 N/S)--Part 2 Of 2
| 6D***40 | Gear Group-Steering | 1 |
Steering Gear (6d5140 N/S)--Part 1 Of 2
| 6D***40 | Gear Group-Steering | 1 |
7s4597 Transfer Gears Group--Part 2 Of 2
| 7S***97 | Gear Group-Transfer | 1 |
Transfer Gear (7s4597 N/S)--Part 2 Of 2
| 7S***97 | Gear Group-Transfer | 1 |
Transfer Gear (7s4597 N/S)--Part 1 Of 2
| 7S***97 | Gear Group-Transfer | 1 |
7s4597 Transfer Gears Group--Part 1 Of 2
| 7S***97 | Gear Group-Transfer | 1 |
Governor And Drive (7s2970 N/S)
| 7S***70 | Governor & Drive Group | 1 |
8s6340 Governor Group
| 8S***40 | Governor Group | 1 |
Hitch And Steering (5j8829 N/S)--Side View--Part 2 Of 3
| 5J***29 | Hitch And Steering | 1 |
Hitch And Steering (5j8829 N/S)--Top View--Part 3 Of 3
| 5J***29 | Hitch And Steering | 1 |
Hitch And Steering (5j8829 N/S)--Side View--Part 1 Of 3
| 5J***29 | Hitch And Steering | 1 |
Hood (6d7030 N/S)
9d4270 Hood Group
| 9D***70 | Hood Group | 1 |
5d6998 Air Horn Assembly
| 5D***98 | Horn Group-Air | 1 |
Horn, Horn Valve And Lines
8d6626 Hose Assembly
| 2P***04 | Stem Assembly 110 Degrees | 1 |
| 3P***21 | Stem Assem. (111 Degrees) | 1 |
| 4S***07 | Hose--48.80" Length (Order By The Inch) | 2 |
2g350 Hour Meter Group--Factory Installation
| 2G***50 | Hour Meter Group | 1 |
5j5427 Control Lever Housing Group
| 5J***27 | Housing Group-Lever | 1 |
6j6750 Hydraulic Oil Steering Filter Group
| 6J***50 | Hydraulic Oil Steering Filter Group | 1 |
6j6750 Hydraulic Oil Steering Filter Group--Type 1
| 6J***50 | Hydraulic Oil Steering Filter Group | 1 |
6j9896 Hydraulic Pump Assembly
| 6J***96 | Hydraulic Pump Assembly | 1 |
7j1920 Hydraulic Pump Assembly
| 7J***20 | Hydraulic Pump Assembly | 1 |
6d5100 Hydraulic Tank Group--Part 1 Of 2
| 6D***00 | Hydraulic Tank Group | 1 |
6d5100 Hydraulic Tank Group--Part 2 Of 2
| 6D***00 | Hydraulic Tank Group | 1 |
6d4205 Low Air Indicator Lamp Assembly
| 6D***05 | Lamp Assembly | 1 |
Cushion Hitch Lines And Valves (6d9720 N/S)--Part 1 Of 2
| 6D***20 | Lines & Valve Group | 1 |
Cushion Hitch Lines And Valves (6d9720 N/S)--Part 2 Of 2
| 6D***20 | Lines & Valve Group | 1 |
Scraper Hitch Lines (7d160 N/S)--Part 1 Of 2
| 7D***60 | Lines Group-Hitch | 1 |
7d160 Scraper Hitch Lines Group--Part 1 Of 2
| 7D***60 | Lines Group-Hitch | 1 |
7d160 Scraper Hitch Lines Group--Part 2 Of 2
| 7D***60 | Lines Group-Hitch | 1 |
Scraper Hitch Lines (7d160 N/S)--Part 2 Of 2
| 7D***60 | Lines Group-Hitch | 1 |
5j9957 Steering Lines Group
| 5J***57 | Lines Group-Steering | 1 |
7j4623 Load Cylinder Group--8.25" Bore X 10" Stroke
| 7J***23 | Load Cylinder Group | 1 |
Manifold And Screens (2s6539 N/S)
| 2S***39 | Manifold & Screens Group | 1 |
7j2233 Pilot And Bleed Valve Group
| 7J***33 | Pilot And Bleed Valve Group | 1 |
8j5896 Pilot Valve Group
| 8J***96 | Pilot Valve Group | 1 |
Planetary Transmission (7s8484 N/S)--Part 1 Of 4
| 7S***84 | Planetary Group | 1 |
Planetary Transmission (7s8484 N/S)--Part 4 Of 4
| 7S***84 | Planetary Group | 1 |
Planetary Transmission (7s8484 N/S)--Part 3 Of 4
| 7S***84 | Planetary Group | 1 |
Planetary Transmission (7s8484 N/S)--Part 2 Of 4
| 7S***84 | Planetary Group | 1 |
8j4891 Hose Group
2g600 Power Source Seat Conversion Group--Part 2
| 06***21 | Adapter, Str., 1/4in. N.P.T. F. X 1/4in. J.I.C. M. | 1 |
| 2G***00 | Power Source Seat Conversion Group | 1 |
| 3S***15 | Tee; -- Adapter Union-- To Check Valve On Warning System Reservoir | 1 |
2g600 Power Source Seat Conversion Group--Part 1
| 1D***38 | Bolt-Top Tank,Bottom Tank To Accessory | 2 |
| 1D***07 | Bolt Bracket To Starting Engine Timing Gear Housing | 4 |
| 1D***16 | Nut,Plain,Hexagon Clip Uoc:Bsv,Bsx | 2 |
8s700 Power Shift Transmission Arrangement
| 8S***00 | Powershift Transmission Arrangement | 1 |
8s700 Powershift Transmission Arrangement
| 8S***00 | Powershift Transmission Arrangement | 1 |
7s8665 Pressure Control Group
| 7S***65 | Pressure Control Group | 1 |
3p8529 Pressure Control Valve Group
| 3P***29 | Pressure Control Valve Group | 1 |
9j6514 Pressure Reducing Valve Assembly
| 9J***14 | Pressure Reducing Valve Assembly | 1 |
Steering Pump And Lines (6d5050 N/S)--Part 1 Of 2
| 6D***50 | Pump & Lines Group | 1 |
Steering Pump And Lines (6d5050 N/S)--Part 2 Of 2
| 6D***50 | Pump & Lines Group | 1 |
Transmission And Retarder Pump And Lines (6d7020 N/S)--Part 1 Of 2
| 6D***20 | Pump & Lines Group | 1 |
Transmission And Retarder Pump And Lines (6d7020 N/S)--Part 2 Of 2
| 6D***20 | Pump & Lines Group | 1 |
6d7020 Transmission And Retarder Pump And Lines Group--Part 1 Of 2
| 6D***20 | Pump & Lines Group | 1 |
6d7020 Transmission And Retarder Pump And Lines Group--Part 2 Of 2
| 6D***20 | Pump & Lines Group | 1 |
6d5200 Scraper Pump, Lines And Tank Group--Part 1 Of 2
| 6D***00 | Pump & Tank | 1 |
Scraper Pump, Tank And Lines (6d5200 N/S)--Part 2 Of 2
| 6D***00 | Pump & Tank | 1 |
Scraper Pump, Tank And Lines (6d5200 N/S)--Part 1 Of 2
| 6D***00 | Pump & Tank | 1 |
6d5200 Scraper Pump, Lines And Tank Group--Part 2 Of 2
| 6D***00 | Pump & Tank | 1 |
7s6985 Scavenge Pump Group
| 7S***85 | Pump Group-Scavenge; -Transmission Scavenge | 1 |
2s7850 Scavenge Pump Group
| 2S***50 | Pump Group-Scavenge; -Flywheel Scavenge | 1 |
7s6980 Transmission Pump Group
| 7S***80 | Pump Group-Transmission; -Transmission | 1 |
9d7380 Replacement Bracket Group
| 9D***80 | Replacement Bracket Group | 1 |
Retarder
9s6889 Retarder Control Group
| 9S***89 | Retarder Control Group | 1 |
3d2744 Rotochamber Assembly
| 3D***44 | Rotochamber | 1 |
Rotochamber, Valves And Lines
6j4930 Scraper Control Valve Group--Part 1 Of 2
| 6J***30 | Scraper Control Valve Group | 1 |
6j4930 Scraper Control Valve Group--Part 2 Of 2
| 6J***30 | Scraper Control Valve Group | 1 |
Seat Frame And Platform (6d5125 N/S)--Part 2 Of 2
| 6D***25 | Seat Frame And Platform | 1 |
8d9310 Seat Frame And Platform Group--Part 1 Of 2
| 8D***10 | Seat Frame And Platform | 1 |
Seat Frame And Platform (8d9310 N/S)--Part 1 Of 2
| 8D***10 | Seat Frame And Platform | 1 |
Seat Frame And Platform (6d5125 N/S)--Part 1 Of 2
| 6D***25 | Seat Frame And Platform | 1 |
Seat Frame And Platform (8d9310 N/S)--Part 2 Of 2
| 8D***10 | Seat Frame And Platform | 1 |
8d9310 Seat Frame And Platform Group--Part 2 Of 2
| 8D***10 | Seat Frame And Platform | 1 |
8d9925 Seat Group
| 8D***25 | Seat Group | 1 |
8d8920 Seat Group
| 8D***20 | Seat Group | 1 |
7d2269 Seat Suspension Assembly
| 7D***69 | Seat Suspension Assembly | 1 |
7s6937 Selector Valve Group
| 7S***37 | Selector Valve Group | 1 |
8j7344 Selctor Valve Group
| 8J***44 | Selector Valve Group | 1 |
5j8606 Steering Cylinder Group--Servo Master--1.50" Bore X 9.38" Stroke
| 5J***06 | Servo-Master Steering Cylinder Group | 1 |
9s2824 Shift Pressure Control Group
| 9S***24 | Shift Pressure Control Group | 1 |
5d9525 Slack Adjuster Assembly--R.H.
| 5D***26 | Slack Adjuster Assembly--R.H.,Slack Adjuster Assembly--L.H. | 1 |
5j8149 Steering Cylinder Group--7.25" Bore X 48.50" Stroke--2 Required
| 5J***49 | Steering Cylinder Group | 1 |
5j7977 Steering Cylinder Group
| 5J***77 | Steering Cylinder Group | 1 |
1t890 Torque Converter Group
| 1T***90 | Torque Converter Group | 1 |
Transfer Gear (5d6460 N/S)--Part 2 Of 2
| 5D***60 | Transfer Gear | 1 |
5d6460 Transfer Gear Group--Part 1 Of 2
| 5D***60 | Transfer Gear | 1 |
Transfer Gear (5d6460 N/S)--Part 1 Of 2
| 5D***60 | Transfer Gear | 1 |
5d6460 Transfer Gear Group--Part 2 Of 2
| 5D***60 | Transfer Gear | 1 |
Transmission Case And Covers (8s9002 N/S)
| 8S***02 | Transmission Case And Covers | 1 |
3p383 Transmission Case Assembly
| 3P***83 | Transmission Case Assembly | 1 |
Transmission Control (5d9770 N/S)--Part 2 Of 2--As Viewed From Right Hand Side Of Machine
| 5D***70 | Transmission Control Group | 1 |
Transmission Control (5d9770 N/S)--As Viewed From Right Hand Side Of Machine--Part 1 Of 2
| 5D***70 | Transmission Control Group | 1 |
Transmission Control (5d9770 N/S)--Part 1 Of 2--As Viewed From Right Hand Side Of Machine
| 5D***70 | Transmission Control Group | 1 |
5d9770 Transmission Control--As Viewed From R.H. Side Of Machine--Part 1 Of 2
| 5D***70 | Transmission Control Group | 1 |
5d9770 Transmission Control--As Viewed From R.H. Side Of Machine--Part 2 Of 2
| 5D***70 | Transmission Control Group | 1 |
Transmission Control (5d9770 N/S)--As Viewed From Right Hand Side Of Machine--Part 2 Of 2
| 5D***70 | Transmission Control Group | 1 |
Transmission Hydraulic Control (7s4503 N/S)--Part 1 Of 2
| 7S***03 | Transmission Hydraulic Control Group | 1 |
Transmission Hydraulic Control (7s4503 N/S)--Part 2 Of 2
| 7S***03 | Transmission Hydraulic Control Group | 1 |
7d8720 Safety Tread Group
| 7D***20 | Tread Group-Safety | 1 |
6d1039 Valve Assembly
| 6D***39 | Valve As; -Exhaust Bypass-Exhaust Diverter | 1 |
6d856 Valve Assembly
| 6D***56 | Valve As; -Differential Lock-Parking Brake | 1 |
6d3943 Retarder Valve Assembly
| 6D***43 | Valve As | 1 |
4d2287 Valve Assembly
| 4D***87 | Valve As; -Parking, Service | 1 |
4d487 Valve Group
| 4D***87 | Valve As-Check; -Air Supply-Primary Air Tank-Service Brake Control | 1 |
7d2316 Control Valve Assembly
| 7D***16 | Valve As-Control | 1 |
5d3056 Double Check Valve Assembly
| 5D***56 | Valve As-Double Check; -Brakesaver Air Supply | 1 |
3d9943 Horn Valve
| 3D***43 | Valve As-Horn | 1 |
6d3546 Safety Valve Assembly
| 6D***46 | Valve As-Safety | 1 |
4d1669 Control Valve Assembly
| 4D***69 | Valve Assembly | 1 |
5d7880 By-Pass Valve Group
| 5D***80 | Valve Group-Bypass | 1 |
2r619 Double Check Valve Assembly
| 2R***19 | Valve Group-Check; -Air System-Parking Brake-Scraper Brake-Service Brake Control | 1 |
9s2818 Governor Cut-Off Valve Group
| 9S***18 | Valve Group-Cutoff | 1 |
9s2818 Governor Cut-Off Valve
| 9S***18 | Valve Group-Cutoff | 1 |
7j651 Cushion Hitch Valve Group--Part 2 Of 2
| 7J***51 | Valve Group-Hitch | 1 |
Cushion Hitch Valve (7j651 N/S)--Part 2 Of 2
| 7J***51 | Valve Group-Hitch | 1 |
Cushion Hitch Valve (7j651 N/S)--Part 1 Of 2
| 7J***51 | Valve Group-Hitch | 1 |
7j651 Cushion Hitch Valve Group--Part 1 Of 2
| 7J***51 | Valve Group-Hitch | 1 |
6p3231 Pressure Control Valve Group
| 6P***31 | Valve Group-Pressure Control | 1 |
6j60 Relief Valve Group
| 6J***60 | Valve Group-Relief; -Trailing Unit Main Control | 1 |
9s9895 Relief Valve Group
| 9S***95 | Valve Group-Relief | 1 |
2p5802 Retarder Control Valve Group
| 2P***02 | Valve Group-Retarder Control | 1 |
7j4012 Selector Valve Group
| 7J***12 | Valve Group-Selector | 1 |
3p2973 Shift Pressure Valve Group
| 3P***73 | Valve Group-Shift Pressure | 1 |
Valves And Lines
Final Drive And Wheels (5d7415 N/S)--37.50 X 39 Tubeless Tires--Part 2 Of 2
| 5D***15 | Wheel & Final Drive Group | 1 |
Final Drive And Wheels (5d7415 N/S)--37.50 X 39 Tubeless Tires--Part 1 Of 2
| 5D***15 | Wheel & Final Drive Group | 1 |
Final Drive And Wheels (8d4690 N/S)--37.50 X 39 Tubeless Tires
| 8D***90 | Wheel & Final Drive Group | 1 |
8d2265 Wheel Assembly
| 8D***65 | Wheel Assembly | 1 |
641B serial number reference
The PIN plate is a durable metal identification plate, usually riveted to the machine frame. To read the prefix, locate the first three alphanumeric characters of the Product Identification Number (PIN).
| Prefix | Identifies | Notes |
|---|---|---|
| D346 | 641B Series/Generation | Covers production years 1970 through 1981. This prefix identifies the machine series for this specific model range. |
Frequently asked questions
What engine is used in the Caterpillar 641B?
The 641B is powered by a Caterpillar D346 turbocharged V8 diesel engine, rated at 550 flywheel horsepower.
What is the operating weight of the 641B?
The operating weight varies by configuration, but typically ranges from approximately 47.4 tons (empty) to 89 tons (loaded).
What replaced the Caterpillar 641 model?
The Caterpillar 641 was discontinued in 1978 and has not been directly replaced within the Caterpillar scraper product range.
What 641B owners discuss
What engine model is utilized in the Caterpillar 641B scraper?
The Caterpillar 641B is powered by a D346 engine series, as documented in historical production records for this model year range (1970–1981).
What are the common hydraulic and transmission fluid requirements for maintaining Caterpillar equipment?
For hydraulic systems, use Cat HYDO Advanced oils to prevent valve clogging and pump cavitation. Transmission systems should utilize Cat TDTO (Transmission/Drive Train Oil). For engine lubrication, use Cat DEO or DEO-ULS depending on the specific emissions tier of the engine.
What are the typical symptoms of hydraulic system degradation in heavy Caterpillar machinery?
Common indicators include loss of system pressure, overheated oil, and jerky machine movement. These issues often stem from internal leakage or fluid contamination.
How can electrical instability manifest in Caterpillar machines with electronic control modules?
Electrical issues often present as unpredictable fault codes or startup failures. Root causes frequently include moisture intrusion into connectors, loose or corroded grounds, and voltage loss under load caused by battery deterioration or alternator failure.
What are the primary causes of engine power loss or performance issues in Caterpillar diesel engines?
Power loss, smoke, or overheating is typically linked to airflow obstructions (such as dirty air filters damaging turbochargers), fuel contamination destroying injectors, or cooling system blockages. Ensure fuel and air systems are clean to extend engine life.
What should be inspected when purchasing a used Caterpillar 641B scraper?
Verify the presence and condition of the hitch configuration; while cushion hitches were an option, they were not standard until approximately 1974. Additionally, check for any signs of structural integrity issues or heavy wear on the bowl components.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Caterpillar 641B. Related factory variants of the same model family:
641B
Need a specific 641B part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.