Caterpillarengine - industrialgas engine
Caterpillar G3508B
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar G3508B is a stationary, spark-ignited natural gas engine belonging to the G3500 series, built on the same 34.5 L (2105 cu in) V-8 block as the diesel 3508 but converted for gas fuel and ignition. It runs turbocharged and aftercooled with ADEM A3 electronic control, detonation-sensitive ignition timing, and per-cylinder knock sensing. Gross output spans roughly 391-514 bkW (524-690 bhp) at 1200-1400 rpm depending on the emissions rating ordered, and Cat-packaged generator sets built on it are commonly seen from about 330 kW up to roughly 500 kW continuous at 1200 rpm/60 Hz or 1500 rpm/50 Hz, varying by voltage and frequency selected. Bare-engine net dry weight runs about 3,940-5,420 kg (8,690-11,950 lb) depending on rating and accessories; a complete packaged genset adds the generator end, radiator, and enclosure on top of that. It was offered both as a bare engine for mechanical-drive or gas-compression duty and as a complete Cat generator set on an open skid or in a sound-attenuated weatherproof enclosure, with rich-burn and lean-burn combustion options and several NOx ratings to fit different site rules. The plain G3508 followed Cat's earlier mechanically governed big-bore gas engines into the ADEM-controlled G3500 lineup and was later followed on the same architecture by the G3508B, alongside gas-compression-specific G3508 LE and G3508J variants.
The defining change on this platform is the move from mechanical governing to ADEM electronic control with individual-cylinder detonation sensing, which let Cat raise power while holding emissions down and gave technicians a fault-code trail instead of guesswork. The later G3508B carries that further with two-stage aftercooling and a revised combustion setup that cuts engine-out NOx enough to meet current stationary spark-ignited limits without the customer-supplied aftertreatment a plain G3508 usually needs. Because the G3508 shares its base iron with the diesel 3508 and the newer G3508B, rebuilt long blocks and shared hardware still circulate even though it isn't a current new-unit offering; buyers should always confirm the exact nameplate and serial before ordering parts, since ignition, fuel, and emissions hardware don't cross over cleanly between the diesel 3508, the G3508, and the G3508B. The engine remains common in existing gas-lift, wellhead compression, and prime or standby generator installations, so overhaul kits, ignition components, and rebuild parts for it stay in steady demand on the used and parts market even though it is no longer a current new-build option.
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 G3508B specifications
Engine
| Model | G3508B (Industrial Gas Engine) |
| Configuration | V-8, 4-Stroke-Cycle |
| Displacement | 34.5 L (2105 in³) |
| Bore | 170 mm (6.7 in) |
| Stroke | 190 mm (7.5 in) |
| Aspiration | Turbocharged Aftercooled (TA) |
| Gross Power | 524 hp (391 kW) @ 1200 rpm; 670 hp (500 kW) @ 1400 rpm; 690 hp (514 kW) @ 1400 rpm |
| Net Power | 524 hp (391 kW) @ 1200 rpm; 670 hp (500 kW) @ 1400 rpm; 690 hp (514 kW) @ 1400 rpm |
| Emissions Tier | NSPS site compliant capable with customer-supplied aftertreatment |
| Control System | ADEM A3 |
Weights
| Weight - Net Dry | 3941 kg (8688 lb) |
Dimensions
| Length | 2522 mm (99 in) |
| Width | 2014 mm (79 in) |
| Height | 2131 mm (84 in) |
Performance
| Frequency | 1200-1400 rpm |
| Rotation | Counterclockwise (from flywheel end) |
Service capacities (summary)
| Cooling System | Not documented for this exact serial range — verify with your dealer |
| Engine Oil | Not documented for this exact serial range — verify with your dealer |
| Fuel Tank | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System | Not documented for this exact serial range — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
G3508B fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with oil filters) | 230.9 L (61 US gal) | Cat NGEO EL350, Cat NGEO EL250, or standard Cat NGEO. SAE 40 only. SAE 30 for ambient up to 40°C (104°F); SAE 40 for ambient up to 50°C (122°F). Sulfated ash 0.40-0.60%. |
| Cooling system - jacket water circuit | 113.6 L (30 US gal) | Cat NGEC (preferred), Cat DEAC, or commercial heavy-duty coolant meeting ASTM D6210 or D4985. Dose with Cat Supplemental Coolant Additive at 3-6%. |
| Cooling system - aftercooler circuit | 11.4 L (3 US gal) | Same as jacket water circuit. Cat NGEC preferred, Cat DEAC or commercial heavy-duty coolant meeting ASTM D6210/D4985 as alternative. |
| Fuel tank | Not applicable | Not applicable. Engine uses piped natural gas. |
| Transmission / powertrain compartments | Not applicable | Not applicable. Engine couples directly to generator; no transmission. |
| Final drives | Not applicable | Not applicable. No final drives on this stationary engine. |
| Hydraulic system and tank | Not applicable | Not applicable. No hydraulic system on this stationary engine. |
| Axles / differentials | Not applicable | Not applicable. No axles or differentials on this stationary engine. |
| Grease (chassis and accessory-drive points) | Spec only | Cat Multipurpose Grease (NLGI 2, lithium complex). For heavier loads/higher temps: Cat Advanced 3Moly (NLGI 2, 3% moly) or Cat Ultra 5Moly (NLGI 0, 1, or 2, 5% moly). Grade 0 for temps down to -43°C (-45°F); Grade 2 for moderate temps. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar G3508B maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the G3508B beyond the schedule
Predictive Maintenance & Fluid Analysis
Track engine oil condition with a sample at every 250-hour interval and hold the standard 1000-hour oil change unless trend data supports stretching it. Pull a Level 1 coolant sample at 250 hours and a full Level 2 sample at 2000 hours, since jacket-water and aftercooler coolant both carry the heat load of a lean-burn gas engine. Use Cat Natural Gas Engine Coolant (NGEC) or Cat DEAC; do not use standard Extended Life Coolant (ELC). Monitor supplemental coolant additive concentration closely to prevent acid condensation in the crankcase, especially when burning sour or high-sulfur gas.
Corrective & Common Repairs
Inspect ignition transformer wiring and connections for damage or corrosion at every 500-hour interval. Check the fuel gas pressure regulator and associated lines for leaks or damage. Inspect the exhaust manifold and turbocharger for cracks or leaks at 1000 hours. Check the condition of the spark plugs and ignition coils; clean or replace as needed. Verify the operation of the engine shutdown and alarm systems. Replace the fuel gas filter element at 1000 hours to ensure proper gas flow and combustion stability.
Overhaul & Rebuild Points
Because the G3508 shares its base iron with the diesel 3508 and the newer G3508B, rebuilt long blocks and shared hardware still circulate even though it isn't a current new-unit offering. Buyers should always confirm the exact nameplate and serial before ordering parts, since ignition, fuel, and emissions hardware don't cross over cleanly between the diesel 3508, the G3508, and the G3508B. The engine remains common in existing gas-lift, wellhead compression, and prime or standby generator installations, so overhaul kits, ignition components, and rebuild parts for it stay in steady demand on the used and parts market even though it is no longer a current new-build option.
Seasonal & Environment Servicing
Cold-site starts need attention: below 10C (50F) ambient, fit an oil heater and match viscosity grade (SAE 30 down to 0C cold-start, SAE 40 for warmer climates) to avoid a hard start on the gas admission system. Keep jacket-water and aftercooler coolant on the same natural-gas-rated antifreeze, since standard extended-life coolant isn't approved for this engine. In dusty or sandy environments, check the air filter daily and replace at 500 hours instead of the standard interval. Clean the radiator and aftercooler fins daily to prevent overheating in high-ambient conditions.
G3508B common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 322-4981 | Filter Element-Fuel | Fuel system service | Check fitment → |
| 5D-5957 | Seal-O-Ring | Fuel system service | Check fitment → |
| 6V-3907 | Seal-O-Ring | Fuel system service | Check fitment → |
| 226-2779 | Filter Element As-Air | Air intake service | Check fitment → |
| 1R-0726 | Filter Element As-Engine Oil | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
G3508B fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CID 0110 FMI 03 | Engine Coolant Temperature Sensor — Voltage Above Normal | Open circuit in sensor wiring or short to power on the 8V reference circuit. | Inspect wiring harness for damage; replace sensor if circuit integrity is confirmed. |
| CID 0190 FMI 08 | Engine Speed Sensor — Abnormal Frequency | Incorrect sensor air gap, sensor failure, or damage to the tone ring. | Check sensor gap; test speed sensor and tone ring for damage. |
| CID 0041 FMI 03 | 8-Volt DC Supply — Voltage Above Normal | Short to power on the 8V reference circuit. | Inspect sensors sharing the 8V supply and isolate the fault. |
| CID 0041 FMI 04 | 8-Volt DC Supply — Voltage Below Normal | Short to ground on the 8V reference circuit. | Disconnect sensors one at a time to locate the short. |
| CID 0262 FMI 05 | 5-Volt Supply — Current Below Normal (Open Circuit) | Open circuit in the 5V reference circuit. | Inspect wiring harness for breaks or disconnected connectors. |
| CID 0248 FMI 09 | CAT Data Link — Abnormal Update Rate | CAN bus wiring damage or termination fault. | Check CAN wiring and measure termination resistance. |
| CID 0168 FMI 01 | System Voltage — Below Normal | Low battery charge, faulty alternator, or poor connections. | Check battery electrolyte level, terminal condition, and charging voltage. |
| CID 0091 FMI 02 | Throttle Position Sensor — Erratic/Intermittent | Faulty sensor or restricted linkage movement. | Check throttle and air-fuel-ratio control linkage for free movement; test sensor. |
| CID 0268 FMI 02 | Programmed Parameter Fault — Erratic/Intermittent | ECM parameter programming error or corrupted calibration. | Verify ECM programming; re-flash or replace ECM if necessary. |
| CID 0110 FMI 00 | Engine Coolant Temperature — Data Valid, Above Normal Range | Actual high coolant temperature due to low level, failed thermostat, or water pump issue. | Diagnose cooling system; do not operate until resolved. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
G3508B attachments & work tools
Generator Set Packages
The G3508B is primarily configured as a stationary prime or standby power source, with continuous electrical outputs typically ranging from 334 ekW to 500 ekW depending on the generator end and frequency selection. These packages are mounted on open skids or housed in sound-attenuated weatherproof enclosures, with the engine coupling directly to the generator via the SAE No. 00 flywheel housing.
Gas Compression Drives
The G3508B LE variant is specifically rated for gas compression applications, including gas lift, gathering, and wellhead compression, with a common rating of 500 kW (670 HP) at 1400 RPM. These configurations utilize the engine's robust diesel-strength design to handle the continuous duty cycles typical of oil and gas production sites.
Flywheel and Coupling Interface
The engine utilizes an SAE No. 00 flywheel and flywheel housing with standard rotation, providing the mechanical interface for connecting to generator ends or mechanical drives. The front housing is two-sided, allowing for accessory drive mounting, while the rear provides the primary power output connection point.
Cooling System Configurations
Standard configurations include a jacket water circuit with a full open thermostat set to 98°C (208°F) and a separate aftercooler circuit with a thermostat set to 35°C (95°F). Optional cooling upgrades include raw water aftercoolers for sea-air atmospheres, expansion and overflow tanks, and thermostatic valves for precise temperature management.
Fuel and Gas Supply Systems
The engine is designed to burn a wide spectrum of gaseous fuels, including natural gas, using a gas pressure regulator and natural gas carburetor. Standard fuel system components include a fuel gas shut-off valve (24V DC) and a gas pressure regulator, with optional fuel filters and integrated fuel transfer pumps available for specific site requirements.
Exhaust and Emissions Hardware
Standard exhaust systems feature water-cooled manifolds to manage heat rejection, with optional flexible fittings, elbows, flanges, and mufflers available for installation flexibility. For emissions compliance, the G3508B is capable of meeting NSPS site standards, often requiring customer-supplied aftertreatment or air-fuel ratio control for specific low-NOx ratings.
Engine Control and Instrumentation
The G3508B employs the ADEM A3 digital engine management system, which integrates ignition, speed governing, protection, and diagnostics, including detonation-sensitive variable ignition timing. Standard instrumentation includes an Advisor panel and interconnect harness, with optional customer communication modules and explosion-proof solenoids available for hazardous environments.
Mounting and Vibration Isolation
The engine is supplied with engine mounting rails as a standard feature, with optional vibration isolators available to reduce transmitted vibration in sensitive installations. The mounting system is designed to support the engine's net dry weight, which varies from approximately 3,941 kg (8,688 lb) to 5,420 kg (11,950 lb) depending on the specific rating and accessory package.
All G3508B assemblies by section
Every catalogued assembly group for the Caterpillar G3508B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
339-3160 Actuator & Mtg Gp-Bypass
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 4 |
| 0S***87 | Bolt-Bracket Assembly To Timing Gear | 1 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
209-4453 Adapter Gp-Air Cleaner
| 03***55 | Locknut; (5/16-18-Thd)(Marked X) | 12 |
| 12***56 | Clamp-Hose | 3 |
| 20***53 | Adapter Group-Air Cleaner | 1 |
345-2023 Aftercooler Gp-Water
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 26 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 10 |
| 15***05 | Gasket | 1 |
332-2238 Aftercooler Gp-Water
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 7 |
| 15***05 | Gasket | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 12 |
339-3154 Air Cleaner Gp
| 03***35 | Bolt-Self Locking; 2.22cm(.875 In.) Lg | 12 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
226-2773 Air Cleaner Gp
| 20***64 | Cover | 1 |
| 22***73 | Air Cleaner Group | 1 |
| 22***79 | Filter Element As-Air; (Primary) | 1 |
134-3805 Arrestor Gp-Flame
| 13***05 | Arrestor Group-Flame | 1 |
| 13***06 | Arrestor As-Flame | 1 |
| 15***55 | Gasket-Manifold | 1 |
4w-5947 Bypass Gp-Exhaust
| 03***68 | Elbow (For Use With Shallow Pan) | 1 |
| 14***58 | Bypass Group-Exhaust | 1 |
| 16***00 | Locknut; (High Temperature) | 4 |
259-1437 Bypass Gp-Exhaust
| 16***00 | Locknut; (High Temperature) | 4 |
| 25***36 | Bypass Group-Exhaust | 1 |
| 25***37 | Bypass Group-Exhaust | 1 |
146-0758 Bypass Gp-Exhaust
| 10***19 | Base As | 1 |
| 11***72 | Diaphragm | 1 |
| 14***51 | Cover As | 1 |
259-1436 Bypass Gp-Exhaust
| 10***19 | Base As | 1 |
| 11***72 | Diaphragm | 1 |
| 14***51 | Cover As | 1 |
7s-4411 Cap As-Rain -Exhaust Pipe
| 7S***11 | Cap As-Rain; -Exhaust Pipe | 1 |
8n-8487 Elbow Gp-Exhaust
| 1D***66 | Bolt Bracket Assembly To Yoke | 2 |
| 1D***69 | Bolt 107.95 mm(4.25 In.) Long; Bolt (Plate To Front Housing) | 2 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 4 |
5n-2458 Elbow-Exhaust
| 5N***58 | Elbow-Exhaust | 1 |
5l-7520 Elbow-Exhaust
| 5L***20 | Elbow-Exhaust | 1 |
8l-9859 Elbow-Exhaust
| 8L***59 | Elbow-Exhaust | 1 |
5n-2457 Fitting Gp-Exhaust -Flexible
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 8 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 8 |
| 21***45 | Bellows As | 1 |
2w-7847 Fitting Gp-Exhaust -Flexible
| 1B***58 | Nut-Full; (5/8-11-Thd) | 4 |
| 2W***47 | Fitting Group-Exhaust; -Flexible | 1 |
| 3N***17 | Adapter As; (Flexible) | 1 |
7n-6968 Fitting Gp-Exhaust
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 8 |
| 3V***08 | Washer-Hard; (10.2x20.5x2.5-mm Thk)(Shield To Head) | 8 |
| 5L***73 | Gasket-Exhaust Elbow | 1 |
7n-6967 Fitting Gp-Exhaust -Flexible
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 8 |
| 24***12 | Gasket; (Exhaust) | 1 |
| 2B***58 | Plug--To Block Upper Front Air Manifold | 1 |
2w-7851 Flange Gp-Exhaust
| 1A***35 | Bolt 2.00 In. (5.08 cm) Long | 4 |
| 1B***58 | Nut-Full; (5/8-11-Thd) | 4 |
| 2W***51 | Flange Group-Exhaust | 1 |
2w-7863 Flange Gp-Exhaust
| 1B***57 | Nut-Full; 19.05mm(.75in)O.D. | 8 |
| 2W***63 | Flange Group-Exhaust | 1 |
| 2W***64 | Flange-Exhaust | 1 |
2w-7871 Flange Gp-Exhaust
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 12 |
| 1B***55 | Nut,Plain,Hexagon Turbocharger Mounting | 12 |
| 1B***57 | Nut-Full; 19.05mm(.75in)O.D. | 12 |
7n-6962 Flange Gp-Exhaust
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 12 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 12 |
| 7N***54 | Flange | 1 |
2w-7860 Flange Gp-Exhaust
| 1B***57 | Nut-Full; 19.05mm(.75in)O.D. | 6 |
| 2W***60 | Flange Group-Exhaust | 1 |
| 2W***61 | Flange-Exhaust | 1 |
7n-6961 Flange Gp-Exhaust
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 8 |
| 3V***08 | Washer-Hard; (10.2x20.5x2.5-mm Thk)(Shield To Head) | 16 |
| 5L***73 | Gasket-Exhaust Elbow | 1 |
2w-7866 Flange Gp-Exhaust
| 1B***57 | Nut-Full; 19.05mm(.75in)O.D. | 12 |
| 2W***66 | Flange Group-Exhaust | 1 |
| 2W***67 | Flange-Exhaust | 1 |
347-3747 Gauge Gp-Air Cleaner
| 34***47 | Gauge Group-Air Cleaner | 1 |
| 3B***52 | Elbow; --Cross To Hose Assembly To Air Gauge | 1 |
| 4W***20 | Indicator-Air Filter Change | 1 |
7w-1678 Indicator Gp-Air Filter Change
| 3B***52 | Elbow; --Cross To Hose Assembly To Air Gauge | 2 |
| 4W***20 | Indicator-Air Filter Change | 2 |
| 5L***33 | Fitting (To Air Cleaner) | 2 |
332-8980 Lines Gp-Air
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 11 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 12 |
5n-8354 Lines Gp-Air -Prelubrication Pump
| 00***53 | Elbow-Pipe; (1/2-14 Nptf Thd) | 2 |
| 2H***40 | Union 90 Degrees (.50" Ext. Thd.) | 1 |
| 2H***91 | Union --Block To Hose Assembly; -- Block To Hose Assembly | 1 |
339-3157 Lines Gp-Air
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 5 |
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 8 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 3 |
339-3147 Manifold Gp-Exhaust
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 6 |
| 12***36 | Gasket; (Turbocharger) | 1 |
346-6972 Shield Gp-Exhaust
| 22***39 | Spring | 19 |
| 23***81 | Shield As-Exhaust; (Front, Lh) | 1 |
| 23***82 | Shield As-Exhaust; (Front, Rh) | 1 |
334-8759 Turbocharger Gp
| 33***59 | Turbocharger Group | 1 |
339-3149 Turbocharger Gp
| 10***03 | Seal-O-Ring | 1 |
| 19***41 | Washer; (8.8x16x2-mm Thk) | 12 |
| 23***46 | Seal-O-Ring | 1 |
8n-8483 Valve Gp-Air Control -Rh
| 1L***73 | Valve Group-Pressure Reducing; -Rh | 1 |
| 3L***93 | Nipple-Close; (1 1/2-11 1/2 Npt Thd) | 1 |
| 5B***66 | Elbow; (90 Degree, 1-1/2-11-1/2 Npt) | 1 |
Basic Engine
7n-8711 Balancer Gp -Front
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 4 |
| 10***65 | Plate-Thrust | 1 |
| 4W***98 | Shaft-Cluster Gear | 1 |
253-2468 Barring Gp -Rh
| 25***68 | Barring Group; -Rh | 1 |
| 3R***37 | Device-Barring | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
5r-7425 Barring Gp -Lh
| 3R***37 | Device-Barring | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
| 5R***25 | Barring Group; Barring Group-Engine | 1 |
341-2490 Camshaft Gp
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 4 |
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 32***25 | Camshaft; (Rh) | 1 |
190-3936 Connecting Rod Gp
| 10***30 | Bearing-Connecting Rod; (Standard) | 1 |
| 10***31 | Bearing-Connecting Rod; (0.63-mm Us Id) | 1 |
| 10***32 | Bearing-Connecting Rod; (1.27-mm Us Id) | 1 |
6i-1392 Cover Gp-Accessory Drive -Upper, Rh
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 10 |
| 23***46 | Seal-O-Ring | 1 |
| 25***98 | Seal-O-Ring | 1 |
339-6348 Cover Gp-Cylinder Block -Central Structure
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 12 |
| 15***57 | Cover-Camshaft | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 44 |
4p-8309 Cover Gp-Flywheel Housing -Rear Structure
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 4 |
| 0L***52 | Capscrew (3/8 - 16 Nc X 3 1/4 Gd8, Hex) | 2 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 4 |
4p-8304 Cover Gp-Front Housing
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 24 |
| 1B***18 | Washer; (25/64 X 5/8 X .064in Thk) | 6 |
| 23***46 | Seal-O-Ring | 1 |
4w-4839 Cover Gp-Front Housing
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 34 |
| 1B***18 | Washer; (25/64 X 5/8 X .064in Thk) | 6 |
| 1C***51 | Bolt--Installation Of 2v***26 Retainer | 1 |
2w-5616 Cover Gp-Oil Pan
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 15***64 | Cover As | 1 |
| 2W***16 | Cover Group-Oil Pan | 1 |
4p-8310 Cover Gp-Valve Mechanism
| 1A***79 | Capscrew (5/16 - 18 Nc X 1 1/2 Gd5, Hex) | 4 |
| 27***57 | Seal; (Valve Cover To Breather) | 1 |
| 4P***10 | Cover Group-Valve Mechanism | 1 |
7n-8707 Crankshaft Gp
| 12***45 | Bolt As; (5/8-18x4.25-In)(Counterweight) | 18 |
| 14***31 | Bearing As-Main; (Standard) | 5 |
| 14***32 | Bearing-Main; (0.63-mm Us Id) | 0 |
350-1392 Cylinder Block As
| 22***96 | Cap-Crankshaft Bearing | 7 |
| 35***92 | Cylinder Block As | 1 |
| 4W***13 | Plug; (2-1/4-12 Thd) | 3 |
101-1171 Cylinder Block As
| 10***71 | Cylinder Block As | 1 |
| 21***26 | Liner-Cylinder Block | 8 |
| 22***96 | Cap-Crankshaft Bearing | 5 |
350-1409 Cylinder Block As
| 21***26 | Liner-Cylinder Block | 8 |
| 22***96 | Cap-Crankshaft Bearing | 5 |
| 33***50 | Seal-Liner | 8 |
353-3970 Cylinder Block Gp
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 6 |
| 2W***40 | Plug-Oil Manifold | 8 |
| 35***92 | Cylinder Block As | 1 |
350-0554 Cylinder Block Gp
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 2 |
| 10***71 | Cylinder Block As | 1 |
| 11***94 | Plate-Spacer | 8 |
115-3502 Cylinder Block Gp
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 2 |
| 0T***02 | Bolt; (3/8-16x0.625-In)(Shield To Head) | 8 |
| 10***71 | Cylinder Block As | 1 |
206-1560 Cylinder Head Gp
| 19***60 | Insert-Valve Seat; (Exhaust)(Standard) | 2 |
| 20***46 | Insert-Valve Seat; (Exhaust 0.254-mm Os Od) | 0 |
| 20***47 | Insert-Valve Seat; (Exhaust 0.508-mm Os Od) | 0 |
318-7217 Cylinder Head Gp
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0T***02 | Bolt; (3/8-16x0.625-In)(Shield To Head) | 1 |
| 11***91 | Gasket-Cylinder Head | 1 |
206-1561 Cylinder Head Gp
| 10***84 | Valve-Exhaust & Inlet | 2 |
| 19***66 | Guide-Valve; (Inlet)(Standard) | 2 |
| 19***99 | Rotocoil As | 4 |
8n-7182 Damper Gp
| 19***88 | Damper As | 1 |
| 2M***49 | Washer-Retainer To Fan Bracket Assembly | 10 |
| 5P***50 | Washer-Front Support Frame Assembly To | 6 |
110-6206 Drain Gp-Engine Oil
| 11***06 | Drain Group-Engine Oil | 1 |
| 11***07 | Valve; (Engine Oil Drain) | 1 |
| 3B***96 | Fitting; (Nipple) | 1 |
216-7097 Drive Gp-Accessory -Upper, Rh
| 0S***92 | Bolt--Cover To Flywheel Housing | 2 |
| 21***97 | Drive Group-Accessory; -Upper, Rh | 1 |
| 5P***47 | Washer (Bracket To Valve Support) | 2 |
199-3429 Drive Gp-Accessory -Lower, Lh
| 0S***92 | Bolt--Cover To Flywheel Housing | 2 |
| 0T***55 | Bolt; (3/8-16x4.25-In)(Location S) | 2 |
| 11***65 | Bearing | 1 |
155-8502 Drive Gp-Accessory
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 5 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 0T***55 | Bolt; (3/8-16x4.25-In)(Location S) | 2 |
7n-4871 Drive Gp-Accessory -Upper, Rh
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 4 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 6 |
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 2 |
2w-8772 Flywheel Gp
| 23***43 | Gear-Flywheel; (183-Teeth) | 1 |
| 24***19 | Flywheel As | 1 |
| 2W***72 | Flywheel Group | 1 |
112-5677 Gear Gp-Rear -Cam Drive
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 4 |
| 10***65 | Plate-Thrust | 1 |
| 10***68 | Washer-Thrust; (19.50 X 106 X 1.9mm Thk) | 2 |
151-9228 Guard Gp-Belt -Alternator
| 15***28 | Guard Group-Belt; -Alternator | 1 |
| 17***59 | Guard As-Belt; (Alternator) | 1 |
| 5P***66 | Capscrew; (Hex Hd) (1/2-13 Nc X 1 1/2) (Gd 8 Z) | 1 |
7w-5780 Guard Gp-Belt -Alternator
| 11***43 | Seal-O-Ring | 2 |
| 28***74 | Guard As-Alternator | 1 |
| 7W***80 | Guard Group-Belt; -Alternator | 1 |
216-8511 Guard Gp-Belt -Alternator
| 21***10 | Guard As-Alternator | 1 |
| 21***11 | Guard Group-Belt; -Alternator | 1 |
| 7E***39 | Spacer; (13.88x21.34x25-mm Thk) | 2 |
307-1569 Guard Gp-Belt -Alternator
| 30***32 | Guard-Alternator | 1 |
| 30***69 | Guard Group-Belt; -Alternator | 1 |
| 5P***66 | Capscrew; (Hex Hd) (1/2-13 Nc X 1 1/2) (Gd 8 Z) | 1 |
301-0226 Guard Gp-Belt -Alternator
| 30***98 | Guard As-Belt | 1 |
| 30***26 | Guard Group-Belt; -Alternator | 1 |
| 5P***66 | Capscrew; (Hex Hd) (1/2-13 Nc X 1 1/2) (Gd 8 Z) | 1 |
271-9270 Guard Gp-Belt -Alternator
| 11***43 | Seal-O-Ring | 2 |
| 26***27 | Plate As | 1 |
| 27***70 | Guard Group-Belt; -Alternator | 1 |
3n-5765 Guard Gp-Coupling -Flywheel
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 6 |
| 1P***15 | Grommet Assem. | 6 |
| 2A***39 | Bolt,Machine Tube To Torque Converter And Tube To Oil Cooler | 4 |
8n-9639 Guard Gp-Damper
| 03***35 | Bolt-Self Locking; 2.22cm(.875 In.) Lg | 6 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 4 |
| 1P***15 | Grommet Assem. | 4 |
4p-8307 Housing Gp-Flywheel
| 1A***69 | Bolt (R.H. Side Flywheel Housing) | 2 |
| 1D***90 | Bolt 4.75 In.(120.65 mm) Long | 16 |
| 22***19 | Housing-Flywheel | 1 |
7w-3724 Housing Gp-Front -Accessory Drive
| 0S***87 | Bolt-Bracket Assembly To Timing Gear | 4 |
| 10***34 | Housing-Accessory Drive | 1 |
| 1D***93 | Bolt 5.5 In. (13.97 cm) Long | 10 |
345-0703 Lifting Gp-Engine
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0T***73 | Bolt (3/8) (63.5mm Long) (On Cab Of Cover Assem.) | 2 |
| 14***94 | Bracket As | 1 |
210-1228 Mounting Gp-Alternator
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 4 |
| 1A***60 | Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z) | 2 |
| 1D***86 | Bolt (3.50" Long--.625" Dia.) | 1 |
7e-4836 Mounting Gp-Alternator
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 4 |
| 14***16 | Belt-Serpentine; (Alternator) | 1 |
| 1A***60 | Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z) | 2 |
7c-6887 Pan Gp-Oil
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 18 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 2 |
| 0T***65 | Bolt--3/8" X 3 1/2"--Use As Required; Bolt 5t***56 Plate To Cover Gp 4n***72 | 26 |
9y-3086 Pan Gp-Oil
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 5 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 2 |
280-8703 Piston Gp
| 0T***02 | Bolt; (3/8-16x0.625-In)(Shield To Head) | 1 |
| 13***06 | Pin-Piston | 1 |
| 1B***90 | Bolt; (5/16-18x1.375-In)(Rh Front Cover) | 1 |
8n-6564 Pulley As-Crankshaft
| 4W***35 | Kit-Bushing; (Crankshaft Pulley) | 1 |
| 8N***64 | Pulley As-Crankshaft | 1 |
7n-4106 Pulley As-Crankshaft
| 4W***35 | Kit-Bushing; (Crankshaft Pulley) | 1 |
| 7N***06 | Pulley As-Crankshaft | 1 |
210-9214 Pulley Gp-Auxiliary Drive -Lower Front, Lh
| 0L***52 | Capscrew (3/8 - 16 Nc X 3 1/4 Gd8, Hex) | 8 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 4 |
| 21***14 | Pulley Group-Auxiliary Drive; -Lower Front, Lh | 1 |
8n-8467 Pulley Gp-Auxiliary Drive -Lower Front, Lh
| 05***65 | Sleeve | 1 |
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 4 |
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 4 |
7w-3813 Seal Gp-Crankshaft
| 11***32 | Seal Group-Crankshaft; (Cw Rotation) | 1 |
| 11***33 | Seal Group-Crankshaft; (Ccw Rotation) | 1 |
| 7W***13 | Seal Group-Crankshaft | 1 |
7n-8042 Shaft Gp-Auxiliary Drive -Lower Front, Lh
| 05***94 | Bolt-12 Point Head; (3/8-16x1.75-In) | 8 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 4 |
| 7C***08 | Seal-Lip Type | 1 |
209-3562 Shaft Gp-Auxiliary Drive -Upper Front, Lh
| 05***94 | Bolt-12 Point Head; (3/8-16x1.75-In) | 8 |
| 0S***21 | Bolt --Brace To Starting Engine Mounting Pad; Bolt-- Brace To Starting Engine Mounting Pad | 4 |
| 20***62 | Shaft Group-Auxiliary Drive; -Upper Front, Lh | 1 |
7n-7660 Drive Gp-Fan
| 5P***50 | Washer-Front Support Frame Assembly To | 6 |
| 7N***57 | Shaft-Stub | 1 |
| 7N***60 | Shaft Group-Stub; -Crankshaft Pulley | 1 |
5n-4830 Valve Gp-Explosion Relief -Crankcase
| 27***59 | Seal | 1 |
| 2W***84 | Kit-Repair; (Explosion Relief)(Crankcase) | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 4 |
1w-8465 Valve Mechanism Gp
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 4 |
| 12***81 | Bridge As | 2 |
| 13***49 | Base As | 1 |
Cooling System
8n-8993 Connection Gp-Water -Inlet, Lh
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 16 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 16 |
| 1S***72 | Gasket | 2 |
7w-6372 Connection Gp-Water -Outlet
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 2 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 4 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 12 |
9y-8179 Connection Gp-Water -Inlet, Outlet
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 8 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 8 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 8 |
4w-5893 Cooler Gp-Engine Oil
| 10***32 | Seal-O-Ring | 2 |
| 12***42 | Core As-Oil Cooler; (Engine) | 1 |
| 1A***83 | Bolt (4.75" Long-Location "B") | 3 |
6i-0999 Flange Gp-Coolant Lines
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 8 |
| 1S***72 | Gasket | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 8 |
7n-4885 Switch Gp-Coolant Level
| 2A***62 | Screw,Cap,Hexagon H Diode Pig Tail To Grd; (1/4-20x.625 In) | 2 |
| 2N***68 | Switch-Liquid Level; (Coolant) | 1 |
| 3N***22 | Hose Assem. 29.6 cm(11.65 In.) | 2 |
7w-1497 Housing & Regulator Gp -Coolant
| 1Y***62 | Washer; (0.328x0.81x0.125-In Thk) | 1 |
| 2H***55 | Bolt 15.88mm(.625in.); 1.59cm(.62in.)Lg. | 1 |
| 4P***03 | Housing-Upper | 1 |
9y-9090 Housing & Regulator Gp -Outlet Control
| 11***74 | Valve As-Vent Line | 1 |
| 15***10 | Seal-Integral; (Water Temperature Regulator) | 1 |
| 24***33 | Regulator-Water Temperature; (98-Deg C)(Water, Coolant) | 4 |
7w-6555 Housing & Regulator Gp -Coolant
| 1Y***62 | Washer; (0.328x0.81x0.125-In Thk) | 1 |
| 2H***55 | Bolt 15.88mm(.625in.); 1.59cm(.62in.)Lg. | 1 |
| 4P***03 | Housing-Upper | 1 |
350-0561 Housing & Regulator Gp -Outlet Control
| 11***74 | Valve As-Vent Line | 1 |
| 15***10 | Seal-Integral; (Water Temperature Regulator) | 1 |
| 19***27 | Regulator-Water Temperature | 4 |
5p-9130 Joint As-Tube
| 5P***30 | Joint As-Tube | 1 |
| 9X***40 | Seal; (140.46mm Id) | 2 |
332-8967 Lines Gp-Auxiliary Fresh Water -Aftercooler
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 6 |
332-2235 Lines Gp-Water -Jacket Water
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 18 |
| 0S***18 | Bolt; (5/16-18x1-In)(Hydraulic Pump) | 14 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
339-3176 Lines Gp-Water -Fuel Heat Exchanger
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 18***24 | Seal-O-Ring | 1 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 3 |
345-0697 Lines Gp-Water -Upper
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 1 |
| 0T***73 | Bolt (3/8) (63.5mm Long) (On Cab Of Cover Assem.) | 4 |
| 18***79 | Elbow | 1 |
339-3161 Lines Gp-Water -Turbo
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 1 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 3 |
| 10***54 | Connector-Orfs | 1 |
302-4277 Lines Gp-Water -Bypass
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 3 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 16 |
| 1D***06 | Bolt; (3/8-16x6-In)(Locations Y) | 3 |
9y-9185 Lines Gp-Water -Bypass
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 3 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 16 |
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 1 |
1n-4171 Lines Gp-Water -Lower
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 12***21 | Adapter | 1 |
2w-1464 Lines Gp-Water -Upper
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 4 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 0S***18 | Bolt; (5/16-18x1-In)(Hydraulic Pump) | 4 |
291-4313 Pump Gp-Auxiliary Water -Fresh Water
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 12***00 | Bearing-Sleeve | 1 |
| 21***79 | Shaft; (14-Teeth) | 1 |
1w-9554 Pump Gp-Auxiliary Water -Fresh Water
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 7 |
| 1T***65 | Bolt 2.54 cm (1" Long) | 1 |
| 1W***54 | Pump Group-Auxiliary Water; -Fresh Water | 1 |
212-8177 Pump Gp-Water
| 0S***18 | Bolt; (5/16-18x1-In)(Hydraulic Pump) | 2 |
| 16***74 | Ring As | 1 |
| 16***76 | Seal Group-Water Pump; (Face Type) | 1 |
2w-9729 Pump Gp-Water
| 14***62 | Seal-O-Ring | 1 |
| 21***77 | Pump Group-Water | 1 |
| 2W***29 | Pump Group-Water; Water Pump Group | 1 |
8n-7643 Housing & Regulator Gp -Inlet Control
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 5 |
| 10***12 | Plate | 2 |
| 1A***83 | Bolt (4.75" Long-Location "B") | 5 |
7w-1427 Regulator Gp-Temperature
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 3 |
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 1 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 3 |
201-3425 Tank Gp-Expansion
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 4 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 8 |
| 11***74 | Valve As-Vent Line | 1 |
212-6938 Tank Gp-Expansion
| 20***25 | Tank Group-Expansion | 1 |
| 21***38 | Tank Group-Expansion | 1 |
| 2W***64 | Lines Group-Water; -Upper | 1 |
212-6936 Tank Gp-Water -Coolant Overflow
| 06***37 | Union-Flared | 1 |
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 6 |
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 8 |
Electrical And Starting System
3n-8278 Adapter-Sensor
| 3N***78 | Adapter-Sensor; Adapter--1/2" Pipe Thread | 1 |
6n-9294 Alternator Gp-Charging
| 03***12 | Screw-Forming; (10-24x0.5-In) | 5 |
| 11***19 | Diode As-Alternator | 1 |
| 18***34 | Nut-Flange; (5/8-18-Thd) | 1 |
298-8838 Alternator Gp-Charging
| 10***31 | Fan-Alternator; (11-Blade) | 1 |
| 10***32 | Collar; (Alternator) | 1 |
| 10***56 | Diode As; (Alternator) | 1 |
112-3454 Alternator Gp-Charging
| 11***54 | Alternator Group-Charging | 1 |
| 2L***73 | Fitting; (Rubber)(Used Only On Positive Pole) | 1 |
| 6N***94 | Alternator Group; (24-Volt, 35-Ampere) | 1 |
112-3455 Alternator Gp-Charging
| 09***19 | Washer; (7.14x15.88x1.58-mm Thk) | 2 |
| 11***55 | Alternator Group-Charging | 1 |
| 2L***73 | Fitting; (Rubber)(Used Only On Positive Pole) | 1 |
4n-3986 Alternator Gp-Charging
| 10***31 | Fan-Alternator; (11-Blade) | 1 |
| 10***32 | Collar; (Alternator) | 1 |
| 10***62 | Kit-Alternator Terminal | 1 |
7w-0408 Battery Charger
| 7W***08 | Battery Charger; Battery Charger--24 Volt Dc | 1 |
131-0832 Battery Charger Gp
| 13***32 | Battery Charger Group | 1 |
| 13***72 | Fuse; (12-Ampere) | 1 |
| 13***74 | Fuse; (15-Ampere) | 1 |
7l-7871 Battery Gp
| 1M***19 | Bolt; (5/16-18x1.375-In)(5/16-18x1.375 In) | 2 |
| 1M***20 | Nut-Battery Terminal (5/16-18 Thd); (5/16-18-Thd)(5/16-18x1.375 In) | 2 |
| 2V***97 | Cable Assem. | 1 |
7l-7872 Battery Gp
| 1M***19 | Bolt; (5/16-18x1.375-In)(5/16-18x1.375 In) | 2 |
| 1M***20 | Nut-Battery Terminal (5/16-18 Thd); (5/16-18-Thd)(5/16-18x1.375 In) | 2 |
| 2V***97 | Cable Assem. | 1 |
9x-9730 Battery Gp -Dry
| 7N***60 | Vent As; (Battery) | 6 |
| 9X***30 | Battery Group; (12 Volt)(Dry)(Each Includes) | 1 |
251-9445 Box As-Control -Remote
| 15***15 | Latch As | 2 |
| 15***23 | Hinge As | 2 |
| 25***45 | Box As-Control; -Remote | 1 |
339-6089 Box As-Junction
| 15***23 | Hinge As | 2 |
| 33***85 | Latch As | 2 |
| 33***89 | Double End Plain Stud, Box As-Junction | 1 |
317-5038 Box Gp-Control -Remote
| 10***43 | Block-Fuse | 1 |
| 10***38 | End-Wire; (16-Ga) | 29 |
| 10***07 | Switch-Operator; (Secondary Stop Push Button) | 1 |
317-5039 Box Gp-Control -Remote
| 10***43 | Block-Fuse | 1 |
| 10***38 | End-Wire; (16-Ga) | 29 |
| 10***07 | Switch-Operator; (Secondary Stop Push Button) | 1 |
329-4523 Box Gp-Control
| 03***74 | Fuse; (15-Ampere) | 1 |
| 10***43 | Block-Fuse | 4 |
| 10***07 | Switch-Operator; (Secondary Stop Push Button) | 1 |
334-1588 Box Gp-Control
| 06***08 | Locknut; (1-11-1/4-Thd) | 1 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 2 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
228-6559 Cable As-Communication
| 22***59 | Cable As-Communication | 1 |
7w-0825 Cable Gp-Battery
| 1M***19 | Bolt; (5/16-18x1.375-In)(5/16-18x1.375 In) | 2 |
| 1M***20 | Nut-Battery Terminal (5/16-18 Thd); (5/16-18-Thd)(5/16-18x1.375 In) | 1 |
| 1S***51 | Terminal-Cable; (00-Ga, 1/2-In Screw) | 2 |
251-9499 Control Gp-Air Starting
| 00***26 | Connector; (Flared)(3/4-16 Thd, 47 mm Long) | 1 |
| 03***61 | Elbow; (45 Degree) | 1 |
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 3 |
256-7512 Control Gp-Communication -Pl1000e
| 25***12 | Control Group-Communication; -Pl1000e | 1 |
| 33***85 | Film-Warning; (Csa Control Panel Approval) | 1 |
256-7511 Control Gp-Communication -Pl1000t
| 12***74 | Screw-Pan Head; (8-32x9.52-mm) | 1 |
| 13***26 | Washer; (4.52x8.28x0.76-mm Thk) | 1 |
| 25***11 | Control Group-Communication; -Pl1000t | 1 |
329-4537 Control Gp-Electronic -Sensors
| 06***93 | Bushing-Reducer; (1/2-14 Nptf) | 1 |
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 0S***15 | Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops | 1 |
154-6713 Control Gp-Engine Electronic
| 15***13 | Control Group-Engine Electronic | 1 |
| 18***72 | Screw-Pan Head; (No 8-32x9.52-mm)(Wax Coated) | 1 |
| 32***17 | Control Group-Engine Electronic | 1 |
251-9515 Control Gp-Solenoid
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 15***40 | Switch As-Pressure; -Prelubrication | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
318-4653 Control Gp-Voltage
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
| 17***53 | Kit-Receptacle; (4-Pin) | 1 |
| 1S***93 | Strap; (Cable) (0.62in Dia) | 2 |
273-3113 Cover Gp-Module Connector
| 12***99 | Wrap-Spiral; (3/8-In Od)(307-cm) | 0 |
| 23***73 | Plug | 1 |
| 23***74 | Seal-Connector | 1 |
320-9978 Fastener Gp-Wiring Harness
| 32***78 | Fastener Group-Wiring Harness | 1 |
| 3S***93 | Strap-Cable-To Tie Harnesses Together | 20 |
| 8L***13 | Strap-Cable(Tie 5.50" Long) | 50 |
251-9446 Harness As-Box -Control
| 10***38 | End-Wire; (16-Ga) | 27 |
| 11***14 | End-Wire; (18-Ga) | 3 |
| 11***62 | Tube-Heat Shrink; (10.85-mm Dia)(299-cm) | 0 |
276-0785 Harness As-Control -Pl1000e
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
| 11***62 | Tube-Heat Shrink; (10.85-mm Dia)(299-cm) | 0 |
| 12***75 | Tube-Heat Shrink; (7.44-mm Dia)(560-cm) | 0 |
270-1732 Harness As-Control -Pl1000t
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
| 11***62 | Tube-Heat Shrink; (10.85-mm Dia)(299-cm) | 0 |
| 12***74 | Tube-Heat Shrink; (5.72-mm Dia)(950-cm) | 0 |
251-9475 Harness As-Power -Alternator
| 11***43 | Sleeve-Plastic; (32-mm Dia)(240-cm) | 0 |
| 12***10 | Boot; (Black) | 1 |
| 25***75 | Harness As-Power; -Alternator | 1 |
331-3343 Harness As-Wiring -Interconnect
| 33***43 | Harness As-Wiring; -Interconnect | 1 |
331-3341 Harness As-Wiring -Interconnect
| 33***41 | Harness As-Wiring; -Interconnect | 1 |
331-3342 Harness As-Wiring -Interconnect
| 33***42 | Harness As-Wiring; -Interconnect | 1 |
200-6504 Heater Gp-Jacket Water
| 10***32 | Thermostat; (60 Deg F To 160 Deg F)(Jacket Water Heater) | 1 |
| 20***04 | Heater Group-Jacket Water | 1 |
7e-6247 Heater Gp-Jacket Water
| 10***32 | Thermostat; (60 Deg F To 160 Deg F)(Jacket Water Heater) | 1 |
| 7E***47 | Heater Group-Jacket Water | 1 |
251-9458 Ignition Gp-Gas Engine
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 0T***02 | Bolt; (3/8-16x0.625-In)(Shield To Head) | 12 |
| 10***83 | Guard As; (Camshaft) | 1 |
320-9979 Installation Gp-Communication
| 22***59 | Cable As-Communication | 1 |
| 25***12 | Control Group-Communication; -Pl1000e | 1 |
| 27***85 | Harness As-Control; -Pl1000e | 1 |
320-9980 Installation Gp-Communication
| 25***11 | Control Group-Communication; -Pl1000t | 1 |
| 27***32 | Harness As-Control; -Pl1000t | 1 |
| 32***80 | Installation Group-Communication | 1 |
273-3131 Lines Gp-Air Starting -Turbine
| 00***11 | Fitting | 2 |
| 00***26 | Connector; (Flared)(3/4-16 Thd, 47 mm Long) | 1 |
| 06***04 | Spacer; (0.459x0.625x1.188-In Thk) | 3 |
273-3130 Lines Gp-Air Starting -Turbine
| 00***11 | Fitting | 1 |
| 06***04 | Spacer; (0.459x0.625x1.188-In Thk) | 3 |
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 2 |
332-5696 Lines Gp-Air Starting -Turbine
| 00***11 | Fitting | 1 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 10***20 | Clamp-Pipe | 1 |
295-1798 Lines Gp-Air Starting
| 00***26 | Connector; (Flared)(3/4-16 Thd, 47 mm Long) | 1 |
| 03***61 | Elbow; (45 Degree) | 1 |
| 0S***73 | Bolt (102mm Long); (1/2-13x4-In) | 2 |
251-9513 Lines Gp-Air Starting
| 03***61 | Elbow; (45 Degree) | 1 |
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 3 |
| 0S***73 | Bolt (102mm Long); (1/2-13x4-In) | 2 |
295-1801 Lines Gp-Air Starting
| 03***61 | Elbow; (45 Degree) | 1 |
| 0S***73 | Bolt (102mm Long); (1/2-13x4-In) | 2 |
| 10***28 | Nipple-Pipe; (1-1/2-11-1/2 Nptf Thd) | 2 |
119-6284 Lubricator Gp-Air Motor
| 11***82 | Lubricator Group-Air Motor; Lubrication Gp-Air Motor | 1 |
| 11***83 | Lubricator Group-Air Motor; Lubrication Gp-Air Motor | 1 |
| 11***84 | Lubricator Group-Air Motor | 1 |
7w-0522 Lubricator Gp-Air Motor
| 15***45 | Valve-Needle | 1 |
| 15***46 | Gauge-Sight; (Lubricant)(Fluid Level) | 1 |
| 15***47 | Tube-Glass | 1 |
119-6282 Lubricator Gp-Air Motor
| 11***82 | Lubricator Group-Air Motor; Lubrication Gp-Air Motor | 1 |
| 6N***84 | Gasket | 1 |
| 6N***85 | Plug-Filler | 2 |
119-6283 Lubricator Gp-Air Motor
| 11***83 | Lubricator Group-Air Motor; Lubrication Gp-Air Motor | 1 |
6i-1039 Mounting Gp-Jacket Wtr Heater -Lh
| 00***35 | Elbow-External Pipe Thread | 1 |
| 05***58 | "P" Clip | 2 |
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 1 |
6i-1040 Mounting Gp-Jacket Wtr Heater -Rh
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
| 1K***37 | Elbow-Pipe | 1 |
| 1S***03 | Spacer; (1.062x1.75x1.44-In Thk) | 2 |
328-2642 Mounting Gp-Sensor -Nitrogen Oxide
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 6 |
| 32***42 | Mounting Group-Sensor; -Nitrogen Oxide | 1 |
| 33***04 | Bracket As | 1 |
315-7846 Mounting Gp-Sensor -Nitrogen Oxide
| 13***26 | Washer; (4.52x8.28x0.76-mm Thk) | 1 |
| 13***35 | Pin-Spring | 1 |
| 24***94 | Nut-Retaining | 4 |
328-2650 Mounting Gp-Sensor
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 1 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
349-9207 Mounting Gp-Sensor
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 6 |
| 33***05 | Shield | 1 |
| 34***07 | Mounting Group-Sensor | 1 |
273-3109 Plug Gp-Box
| 18***92 | Seal As; (Conduit Hole) | 1 |
| 27***09 | Plug Group-Box | 1 |
| 7X***43 | Protector | 1 |
204-0333 Plug Gp-Connector -Protective Cover
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 20***33 | Plug Group-Connector; -Protective Cover | 1 |
| 8T***37 | Plug-Seal; (40 Pin Connector) | 2 |
143-8540 Sensor Gp-Coolant Level
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
| 14***40 | Sensor Group-Coolant Level | 1 |
| 14***61 | Harness As-Switch; (Coolant Level) | 1 |
304-4209 Sensor Gp-Nitrogen Oxide
| 10***06 | Receptacle Kit; (Includes Wedge And Receptacle Assem.) | 1 |
| 12***76 | Tube-Heat Shrink; (17.78-mm Dia)(140-cm) | 3 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 4 |
273-5041 Sensor Gp-Speed
| 11***66 | Seal-O-Ring | 1 |
| 13***07 | Washer; (21.1x28.1x0.9-mm Thk) | 1 |
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 1 |
241-9591 Sensor Gp-Temperature
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
| 24***91 | Sensor Group-Temperature | 1 |
180-5420 Sensor Gp-Temperature
| 12***74 | Tube-Heat Shrink; (5.72-mm Dia)(950-cm) | 0 |
| 18***20 | Sensor Group-Temperature | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
106-0735 Sensor Gp-Temperature
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 10***35 | Sensor Group-Temperature; -Engine Oil | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 3 |
8n-8486 Silencer Gp-Air Starting
| 1D***66 | Bolt Bracket Assembly To Yoke | 2 |
| 1D***69 | Bolt 107.95 mm(4.25 In.) Long; Bolt (Plate To Front Housing) | 2 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 4 |
253-0287 Starting Motor Gp-Air
| 24***37 | Kit-Turbine Wheel; (Air Starting Motor) | 1 |
| 24***38 | Pinion-Drive; (12-Teeth) | 1 |
| 24***39 | Kit-Rebuild; (Air Starting Motor) | 1 |
333-8415 Starting Motor Gp-Air -Turbine
| 33***15 | Starting Motor Group-Air; -Turbine | 1 |
| 33***88 | Starting Motor Group-Air | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
8n-8477 Starting Motor Gp-Air -Rh
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 3 |
| 1D***66 | Bolt Bracket Assembly To Yoke | 4 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
7c-3372 Starting Motor Gp-Air
| 03***17 | Washer-Spring | 2 |
| 09***33 | Bolt-Socket Head; (M5x0.8x20-mm) | 1 |
| 11***99 | Housing-Motor | 1 |
334-4438 Starting Motor Gp-Air
| 24***37 | Kit-Turbine Wheel; (Air Starting Motor) | 1 |
| 24***38 | Pinion-Drive; (12-Teeth) | 1 |
| 24***39 | Kit-Rebuild; (Air Starting Motor) | 1 |
4w-5107 Starting Motor Gp-Air
| 03***17 | Washer-Spring | 2 |
| 09***33 | Bolt-Socket Head; (M5x0.8x20-mm) | 1 |
| 1L***97 | Ring-Snap; (External) | 1 |
262-7285 Starting Motor Gp-Air -Turbine
| 25***87 | Starting Motor Group-Air | 1 |
| 26***85 | Starting Motor Group-Air; -Turbine | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
334-8210 Starting Motor Gp-Air -Turbine
| 33***38 | Starting Motor Group-Air | 1 |
| 33***10 | Starting Motor Group-Air; -Turbine | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
276-1863 Starting Motor Gp-Air
| 24***37 | Kit-Turbine Wheel; (Air Starting Motor) | 1 |
| 24***38 | Pinion-Drive; (12-Teeth) | 1 |
| 24***39 | Kit-Rebuild; (Air Starting Motor) | 1 |
333-9888 Starting Motor Gp-Air
| 24***37 | Kit-Turbine Wheel; (Air Starting Motor) | 1 |
| 24***38 | Pinion-Drive; (12-Teeth) | 1 |
| 24***39 | Kit-Rebuild; (Air Starting Motor) | 1 |
301-4526 Starting Motor Gp-Air
| 24***37 | Kit-Turbine Wheel; (Air Starting Motor) | 1 |
| 24***38 | Pinion-Drive; (12-Teeth) | 1 |
| 24***39 | Kit-Rebuild; (Air Starting Motor) | 1 |
273-3104 Starting Motor Gp-Air -Turbine
| 27***04 | Starting Motor Group-Air; -Turbine | 1 |
| 27***63 | Starting Motor Group-Air | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
276-1353 Starting Motor Gp-Air -Turbine
| 24***37 | Kit-Turbine Wheel; (Air Starting Motor) | 0 |
| 24***38 | Pinion-Drive; (12-Teeth) | 1 |
| 24***39 | Kit-Rebuild; (Air Starting Motor) | 0 |
301-4527 Starting Motor Gp-Air -Turbine
| 30***26 | Cover, Starting Motor Group-Air | 1 |
| 30***27 | Starting Motor Group-Air; -Turbine | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
146-5215 Strainer Gp-Air Lines
| 14***15 | Strainer Group-Air Lines | 1 |
| 14***16 | Screen-Strainer; (Starting Motor Air Lines) | 1 |
3n-7056 Support Gp-Battery
| 3N***54 | Support As-Battery | 1 |
| 3N***55 | Board | 1 |
| 3N***56 | Support Group-Battery | 1 |
150-1240 Switch As-Pressure -Prelubrication
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 15***40 | Switch As-Pressure; -Prelubrication | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
3e-0264 Switch Gp-Temperature
| 3E***64 | Switch Group-Temperature; -Coolant | 1 |
| 7N***79 | Socket-Governor Solenoid Wire To Housing | 1 |
| 7N***80 | Pin-Connector; (14-Ga To 18-Ga) | 1 |
327-9371 Transformer Gp-Current
| 25***78 | Transformer Group-Ignition | 1 |
| 31***62 | Spring | 1 |
| 32***71 | Transformer Group-Current | 1 |
259-2078 Transformer Gp-Ignition
| 11***49 | Insulator | 1 |
| 12***55 | Terminal As | 1 |
| 12***72 | Seal-O-Ring | 1 |
1l-2073 Valve Gp-Pressure Reducing -Rh
| 0T***20 | Bolt (1.25 In. Long X .438 In. Dia.) | 1 |
| 1H***69 | Button-Spring | 1 |
| 1H***70 | Chamber | 1 |
103-0692 Valve Gp-Solenoid
| 10***92 | Valve Group-Solenoid; -Gas Shutoff | 1 |
| 7X***78 | Coil As | 1 |
9y-6061 Valve Gp-Solenoid
251-9396 Valve Gp-Solenoid
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***31 | Valve Group-Solenoid; (Air Start) | 1 |
| 12***76 | Tube-Heat Shrink; (17.78-mm Dia)(140-cm) | 0 |
9y-6992 Valve Gp-Solenoid
| 10***92 | Valve Group-Solenoid; -Gas Shutoff | 1 |
| 4P***77 | Gasket | 1 |
| 9X***06 | Receptacle As | 1 |
298-8839 Wiring Gp-Alternator -Air Start
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 3 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 1 |
| 0S***16 | Screw,Cap,Hexagon H Receptacle Mtg; Bolt Brackets To Firewall Assembly | 1 |
251-9474 Wiring Gp-Alternator -Air Start
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 3 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 1 |
| 0S***16 | Screw,Cap,Hexagon H Receptacle Mtg; Bolt Brackets To Firewall Assembly | 1 |
315-3584 Wiring Gp-Electronic Control -Nitrogen Oxide
| 10***43 | Block-Fuse | 1 |
| 27***21 | Harness As-Wiring; (Air Fuel Ratio Control) | 1 |
| 31***84 | Wiring Group-Electronic Control; -Nitrogen Oxide | 1 |
334-1590 Wiring Gp-Electronic Control -Nitrogen Oxide
| 31***46 | Mounting Group-Sensor; -Nitrogen Oxide | 1 |
| 33***90 | Wiring Group-Electronic Control; -Nitrogen Oxide | 1 |
334-1586 Wiring Gp-Engine -Csa
| 03***67 | Bracket | 4 |
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 9 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 9 |
334-1584 Wiring Gp-Sensor -Detonation
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 3 |
| 14***15 | Sensor Group-Knock; (Detonation) | 4 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 3 |
334-1593 Wiring Gp-Sensor -Temperature
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 14 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
Enclosures, Guards And Bases
160-9800 Pad-Isolator
| 16***00 | Pad-Isolator | 1 |
167-6873 Rail Gp-Engine Support
| 16***71 | Support-Engine & Radiator | 1 |
| 16***72 | Support-Engine & Radiator | 1 |
| 16***73 | Rail Group-Engine Support | 1 |
339-3179 Rail Gp-Engine Support
| 33***79 | Rail Group-Engine Support | 1 |
| 33***80 | Support-Engine; (Lh) | 1 |
| 8T***94 | Washer; (3/4 Hardened) (Current Adapters) | 28 |
7n-8642 Rail Gp-Engine Support
| 0S***97 | Bolt (3/4-16x2.25in); (3/4-16x2.25-In) | 32 |
| 1B***09 | Nut,Plain,Hexagon Radiator Guard | 4 |
| 4L***65 | Setscrew; (1-14x3.88-In) | 4 |
Engine Arrangement
336-8679 Engine Ar
| 11***77 | Gear Group-Rear; -Cam Drive | 1 |
| 11***02 | Cylinder Block Group | 1 |
| 13***49 | Lines Group-Engine Oil | 1 |
Fuel System
321-6969 Filter Gp-Fuel
| 09***13 | Plug-Pipe | 1 |
| 32***69 | Filter Group-Fuel | 1 |
| 32***81 | Filter Element-Fuel; (Gas) | 1 |
339-3159 Lines Gp-Fuel
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 12 |
| 30***63 | Tube As-Joint | 1 |
| 33***32 | Gasket | 1 |
332-8971 Lines Gp-Fuel
| 04***01 | Coupling-Pipe | 1 |
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
320-7693 Plate Gp-Cover
| 32***93 | Plate Group-Cover | 1 |
| 6I***34 | Plate-Valve | 1 |
| 6I***75 | Gasket | 1 |
320-7694 Plate Gp-Cover
| 10***20 | Plate-Valve | 1 |
| 32***94 | Plate Group-Cover | 1 |
| 6I***75 | Gasket | 1 |
320-7695 Plate Gp-Cover
| 30***10 | Plate | 1 |
| 32***95 | Plate Group-Cover | 1 |
| 6I***75 | Gasket | 1 |
210-2007 Regulator Gp-Gas Pressure
| 21***07 | Regulator Group-Gas Pressure | 1 |
339-6349 Throttle Gp
| 16***68 | Seal-O-Ring | 2 |
| 1C***51 | Bolt--Installation Of 2v***26 Retainer | 4 |
| 32***29 | Throttle Group | 1 |
Lubrication System
4p-8312 Breather Gp -Crankcase
| 03***31 | Seal-O-Ring | 1 |
| 1A***79 | Capscrew (5/16 - 18 Nc X 1 1/2 Gd5, Hex) | 4 |
| 21***18 | Cover As-Valve Mechanism | 1 |
7n-1875 Filler Gp-Engine Oil -Cylinder Block
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 2W***52 | Gasket | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 4 |
4w-6874 Filter Gp-Engine Oil -Rh
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 4 |
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 3 |
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 2 |
134-0975 Filter Gp-Engine Oil -Duplex
| 00***53 | Elbow-Pipe; (1/2-14 Nptf Thd) | 1 |
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 1 |
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 3 |
350-5716 Gauge Gp-Oil Level (Dipstick)
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 35***16 | Gauge Group-Oil Level (Dipstick) | 1 |
| 35***17 | Tube As-Oil Gauge | 1 |
7e-6342 Gauge Gp-Oil Level (Dipstick)
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 4B***40 | Cover; (Prelubrication) | 1 |
| 4P***84 | Gauge As-Oil Level (Dipstick) | 1 |
235-4434 Hose As
| 23***34 | Hose As | 1 |
| 3N***69 | Hose As | 1 |
3n-4869 Hose As
| 3N***69 | Hose As | 1 |
134-3749 Lines Gp-Engine Oil
| 06***56 | Seal-O-Ring | 4 |
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 4 |
| 0L***52 | Capscrew (3/8 - 16 Nc X 3 1/4 Gd8, Hex) | 1 |
1w-3941 Lines Gp-Oil Supply -Prelubrication
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 7 |
339-3151 Lines Gp-Turbocharger Oil
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 3 |
| 25***74 | Gasket | 2 |
7n-8715 Pump Gp-Engine Oil -2-Section Gear
| 29***87 | Seal-O-Ring | 1 |
| 4S***82 | Bolt 7.25 In. (18.42 cm) Long | 3 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 3 |
7w-0053 Pump Gp-Engine Oil -2-Section Gear
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 6 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 9 |
| 11***49 | Gasket | 1 |
1w-4776 Pump Gp-Prelubrication
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 9 |
| 1H***59 | Seal-Lip Type | 2 |
1w-4674 Pump Gp-Prelubrication
| 1B***75 | Bolt (" " " ); Bolt ( " " " ) | 4 |
| 1M***81 | Spacer; (0.438x0.75x1-In Thk) | 4 |
| 1W***74 | Pump Group-Prelube | 1 |
7w-9704 Pump Gp-Sump
| 00***63 | Elbow, 90 Deg Street, 3/4in. N.P.T. | 1 |
| 0L***01 | Nut; (1-1/2-12-Thd) | 1 |
| 1K***37 | Elbow-Pipe | 1 |
5n-6237 Pump Gp-Engine Oil -Manual Lubrication
| 2A***62 | Screw,Cap,Hexagon H Diode Pig Tail To Grd; (1/4-20x.625 In) | 2 |
| 3N***97 | Pin-Tapered | 2 |
| 3N***99 | Gasket Set; (Includes 4 Gaskets) | 1 |
216-8347 Regulator Gp-Oil Level
| 03***67 | Connector-Flared -- Adapter To Hose As. | 1 |
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 3 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
7w-3816 Valve Gp-Fluid Control -Duplex Oil
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 2 |
| 2W***13 | Cover Assem. | 1 |
| 2W***10 | Valve As-Oil; (Duplex) | 1 |
Operator Station
329-4536 Mounting Gp-Control
| 16***98 | Bracket As | 1 |
| 32***36 | Mounting Group-Control | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 4 |
340-9851 Mounting Gp-Control
| 33***61 | Bracket As | 1 |
| 34***51 | Mounting Group-Control | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 4 |
251-9391 Mounting Gp-Control Panel -Interface
| 10***64 | Mount-Sandwich | 4 |
| 1H***38 | Lockwasher, External Tooth (1/4); W/O Freespool Qty Is 6 | 9 |
| 25***91 | Mounting Group-Control Panel; -Interface | 1 |
251-9427 Panel Gp-Instrument -Pyrometer
| 1B***71 | Spacer 2.54 cm(1 In.) Long | 3 |
| 1V***42 | Nut; (1/4-20-Thd) | 3 |
| 25***27 | Panel Group-Instrument; -Pyrometer | 1 |
Prime Package
9y-5587 Accumulator Gp -Uncharged
| 9T***47 | Seal-Kit | 1 |
| 9Y***87 | Accumulator Group; -Uncharged | 1 |
320-1359 Accumulator Gp -Turbocharger Oil
| 03***72 | Elbow; (Flared 90 Degree) | 1 |
| 06***56 | Seal-O-Ring | 2 |
| 06***04 | Spacer; (0.459x0.625x1.188-In Thk) | 4 |
Service Equipment And Supplies
6l-4502 Chart-Plate & Film
| 11***52 | Plate & Film Group; -Engine Information | 1 |
| 22***30 | Film-Warning; (Shock Hazard) | 2 |
| 22***26 | Film-Warning; (Hot Surface) | 2 |
273-3124 Film Gp
| 27***24 | Film Group | 1 |
| 27***25 | Film-Warning; (Csa Control Panel Approval) | 2 |
352-9860 Film Gp
| 35***60 | Film Group | 1 |
| 35***91 | Tag | 1 |
| 8L***13 | Strap-Cable(Tie 5.50" Long) | 2 |
G3508B serial number reference
The G3508B PIN plate is located on the engine block or the side of the engine compartment. The prefix is the first three alphanumeric characters of the serial number, followed by a five-digit sequence ID.
| Prefix | Identifies | Notes |
|---|---|---|
| 2HW | 3508B GEN SET ENGINE | Industrial engine prefix for the 3508B generator set configuration. Verify with dealer for exact build year and configuration details. |
| 3LS | 3508B GEN SET ENGINE | Industrial engine prefix for the 3508B generator set configuration. Verify with dealer for exact build year and configuration details. |
| 4GM | 3508B GEN SET ENGINE | Industrial engine prefix for the 3508B generator set configuration. Verify with dealer for exact build year and configuration details. |
| 6PN | 3508B GEN SET ENGINE | Industrial engine prefix for the 3508B generator set configuration. Verify with dealer for exact build year and configuration details. |
| ZAD | 3508B GEN SET ENGINE | Industrial engine prefix for the 3508B generator set configuration. Verify with dealer for exact build year and configuration details. |
| 5KW | 3508B GENERATOR SET | Prefix for the complete 3508B generator set assembly. Verify with dealer for exact build year and configuration details. |
| CNB | 3508B GENERATOR SET | Prefix for the complete 3508B generator set assembly. Verify with dealer for exact build year and configuration details. |
| PTJ | 3508B GENERATOR SET | Prefix for the complete 3508B generator set assembly. Verify with dealer for exact build year and configuration details. |
| PTN | 3508B GENERATOR SET | Prefix for the complete 3508B generator set assembly. Verify with dealer for exact build year and configuration details. |
| KAM | 3508B REMAN ENGINE | Prefix for the remanufactured 3508B engine. Verify with dealer for exact build year and configuration details. |
Frequently asked questions
What type of engine is the G3508B?
The G3508B is a stationary, spark-ignited natural gas engine from Cat's G3500 series, built on the same 34.5 L (2105 cu in) V-8 block as the diesel 3508 but converted to gas fuel and ignition. It runs turbocharged and aftercooled with ADEM A3 electronic control, detonation-sensitive ignition timing, and per-cylinder knock sensing.
What is the operating weight of the G3508B?
Bare-engine net dry weight runs about 3,940-5,420 kg (8,690-11,950 lb) depending on rating and accessories; a complete packaged genset adds the generator end, radiator, and enclosure on top of that.
What replaced the G3508B?
The plain G3508 followed Cat's earlier mechanically governed big-bore gas engines into the ADEM-controlled G3500 lineup and was later followed on the same architecture by the G3508B, alongside gas-compression-specific G3508 LE and G3508J variants. The G3508B is no longer a current new-build option, but it remains common in existing installations.
What G3508B owners discuss
What are the primary powertrain and combustion characteristics of the G3508B compared to the earlier G3508?
The G3508B utilizes a lean-burn combustion design with two-stage aftercooling and a revised combustion setup to reduce engine-out NOx, allowing it to meet stationary spark-ignited emission limits without customer-supplied aftertreatment. It uses the ADEM A3 electronic control system with detonation-sensitive variable ignition timing and per-cylinder knock sensing. The earlier G3508 relied on mechanical governing or single-stage aftercooling and typically required customer-supplied aftertreatment for compliance. Both share the same 34.5 L (2105 in³) V-8 block architecture derived from the diesel 3508 iron.
What are the typical fluid capacities and specifications for the G3508B cooling and lubrication systems?
The total cooling system capacity is 124.9 L (33 gal), comprising a jacket water circuit of 113.6 L (30 gal) and a separate aftercooler circuit of 11.4 L (3 gal). The engine oil refill capacity is 230.9 L (61 gal). Factory-recommended oil is Cat Natural Gas Engine Oil (NGEO) SAE 40 only; multigrade oils are not recommended. Coolant should be Cat Natural Gas Engine Coolant (NGEC) or Cat Diesel Engine Antifreeze/Coolant (DEAC); standard Extended Life Coolant (ELC) is not suitable for gas engines. Oil change intervals are typically 1000 hours, extendable only in 250-hour increments with oil analysis support.
What are the common electrical and sensor issues associated with the ADEM A3 control system?
Operators report that electrical instability often stems from moisture intrusion into connectors, stressed wiring harnesses, and failing charging systems. Weak batteries or poor grounding can cause the ECM to behave erratically, leading to unpredictable fault codes and startup failures. The ADEM A3 system provides integrated ignition, speed governing, and protection, but technicians rely on its fault-code trail for diagnostics rather than guesswork. Intermittent power loss to critical systems is often linked to failed engine control relays or corroded terminals.
What are the known quirks or maintenance requirements for the G3508B's gas fuel system?
The engine burns pipeline-quality dry natural gas with a methane number of at least 30. Required inlet gas pressure is approximately 242-276 kPa (35-40 psig) for standard ratings, though some configurations accept up to 345 kPa (50 psig). The fuel system includes a gas pressure regulator, natural gas carburetor, and fuel gas shut-off valve. For sour or high-sulfur gas sources, shorter oil-sampling intervals are required, and the jacket water outlet must be held at a minimum of 110°C (230°F) to limit acid condensation in the crankcase. The fuel gas filter must capture at least 99% of 1-micron particles.
What should be checked when buying a used G3508B to verify its condition and configuration?
Verify the exact nameplate and serial number to confirm the specific rating (391-514 bkW / 524-690 bhp) and emissions compliance, as hardware does not cross over cleanly between the diesel 3508, G3508, and G3508B. Check the ADEM A3 control panel for stored fault/alarm logs. Inspect the condition of the ignition transformers and wiring harnesses for moisture or stress damage. Review oil analysis history to assess crankcase contamination, especially if the engine has handled sour gas. Confirm the cooling system integrity, as head gasket failures via overheating are a known weak point in older Cat gas engines.
What are the typical wear patterns or failure modes for the G3508B's internal components?
The engine is designed for robust diesel strength, but continuous load and heat can impact components. Common wear issues include piston ring wear leading to blow-by, which is normal to some degree but excessive blow-by indicates major work. Exhaust manifolds can crack, particularly in marine or high-vibration applications. The timing gear advance unit is a known failure point in older Cat gas engines, often requiring sump removal for access. Valve lash misalignment can cause power loss and rough idling. Regular inspection of the throttle and air-fuel-ratio control linkage for free movement is critical.
What are the safety-critical shutdown and protection features of the G3508B?
The engine includes an electronic shutoff system and a gas shutoff valve for emergency fuel isolation. Detonation-sensitive variable ignition timing helps prevent engine damage from knock. The cooling system includes jacket water thermostats (full open temperature 98°C / 208°F) and aftercooler thermostats (full open temperature 35°C / 95°F) to manage heat. High-temperature readings or steam leakage can lead to engine derating or shutdown. Have your dealer verify the condition of the gas shutoff valve and electronic shutoff solenoids before operation.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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