Caterpillarengine - industrialgas engine
Caterpillar G3306B
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar G3306B is a heavy-duty industrial gas engine built on the G3300 platform, designed for continuous duty in oil and gas applications. It delivers ratings from 108 to 157 bkW (145 to 211 bhp) at 1800 rpm. The engine features a 10.5 L (638 in³) displacement inline-six configuration with a 122.92 mm (4.8 in) bore and 152 mm (6 in) stroke. It weighs 948 kg (2090 lb) dry. Configurations include naturally aspirated (NA) and turbocharged-aftercooled (TA) variants. It succeeded earlier G3300 series models and serves as a core power unit for gas compression, wellhead gas gathering, and gas lift operations.
The G3306B transitioned from mechanical governance to the ADEM A4 electronic control system, enabling precise air/fuel ratio control and integrated engine protection. This shift improved emissions compliance and operational efficiency in remote sites. In the used and parts market, the G3306B remains critical because its robust cast iron block and standard SAE No. 1 flywheel housing allow for easy integration into legacy compression packages. The widespread availability of remanufactured components and the engine's tolerance for lower-quality gas fuels sustain its value in the secondary market.
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 G3306B specifications
Engine
| Model | G3306B |
| Configuration | In-line, 6 Cylinder, 4-Stroke-Cycle Gas |
| Displacement | 10.5 L (638 in³) |
| Bore | 121 mm (4.75 in) |
| Stroke | 152 mm (6.0 in) |
| Gross Power (Maximum Rating) | 157 bkW (211 bhp) |
| Net Power (Minimum Rating) | 108 bkW (145 bhp) |
| Rated Speed | 1800 rpm |
| Emissions Tier | Rich Burn: EPA NSPS Site Compliant Capable with Caterpillar or Customer Supplied AFRC & Aftertreatment |
Weights
| Dry Weight | 948 kg (2090 lb) |
Dimensions
| Length | 1539 mm (60 in) |
| Width | 978 mm (38 in) |
| Height | 1261 mm (50 in) |
Performance
| Aspiration | Naturally Aspirated or Turbocharged - Aftercooled |
| Compression Ratio | 10.5:1 |
| Rotation from Flywheel End | Counterclockwise |
| Flywheel and Flywheel Housing | SAE No. 1 |
| Flywheel Teeth | 156 |
Service capacities (summary)
| Cooling System | 20 L (5.25 gal US) |
| Lube Oil System - Refill | 44.5 L (11.9 gal US) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
G3306B fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 44.5 l (11.9 US gal) | Cat DEO (Diesel Engine Oil). SAE 15W-40 for general service; SAE 10W-30 for cold climates below -18 C (0 F); SAE 30 for sustained heat above 30 C (86 F). |
| Cooling system | 20 l (5.25 US gal) | Cat DEAC (Diesel Engine Antifreeze/Coolant) or Cat ELC (Extended Life Coolant). Use higher antifreeze concentration in climates colder than -20 C (-4 F). |
| Fuel tank | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Transmission/powertrain compartments | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Final drives (each) | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Hydraulic system AND tank | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Axles/differentials | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Grease (spec only) | N/A | Cat MPGM (Multipurpose Grease), NLGI 2. Cat XA (Extreme Application) grease for heavy-load or extreme temperature conditions. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar G3306B maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the G3306B beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize the S.O.S fluid analysis program to monitor internal engine condition and detect unwanted fluids. Sample engine oil and coolant at 1000-hour intervals to check for combustion by-products and wear metals. The ADEM A4 system logs fault codes that indicate early signs of ignition failure or air/fuel ratio drift. Monitor the three-way catalyst pressure drop to predict exhaust restriction. Use the operator interface panel to track real-time coolant temperature and oil pressure trends for anomaly detection.
Corrective & Common Repairs
Address frequent failures in the natural gas carburetor and gas pressure regulator, which require 10.3 to 34.5 kPa (1.5 to 5 psi) inlet pressure. Replace worn ignition modules and spark plugs to prevent misfires under high load. Inspect the crankcase breather for clogging, which causes oil leaks at gasket seals. Repair leaks in the water-cooled exhaust manifolds by replacing gaskets or elbows. Verify the integrity of the ADEM A4 harness connectors, which often suffer from vibration damage in mobile compression skids.
Overhaul & Rebuild Points
Plan major overhauls based on cylinder liner wear and piston ring gap measurements. Inspect the crankshaft main and rod bearings for clearance limits during the 4000-hour service. Replace the gear-driven jacket water pump if flow rates drop below specification. Rebuild the air/fuel ratio control valve to maintain stoichiometric balance. Inspect the flywheel teeth for wear to ensure proper starter engagement. Replace all cylinder head gaskets and valve stem seals during a top-end overhaul.
Seasonal & Environment Servicing
In cold climates, verify the operation of the engine block heater and use low-viscosity oil for cold starts. Check coolant glycol concentration to prevent freezing in the 20 L (5.25 gal) cooling system. In dusty environments, service the intermediate duty air cleaner daily and replace the primary element at 500 hours. Inspect the radiator and oil cooler fins for debris buildup that restricts heat rejection. Ensure the air intake rain cap is secure to prevent water ingestion during heavy precipitation.
G3306B common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1D-4540 | Bolt,Machine Fuel Filter Mounting | Fuel system service | Check fitment → |
| 322-4981 | Filter Element-Fuel | Fuel system service | Check fitment → |
| 6I-2501 | Filter Element As-Air | Air intake service | Check fitment → |
| 6I-2502 | Filter Element As-Air | Air intake service | Check fitment → |
| 6I-2499 | Filter Element As-Air | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
G3306B attachments & work tools
Gas Compression Drives
The G3306B is primarily configured for continuous-duty gas compression applications, including gas lift, gas gathering, and wellhead compression. Ratings range from 108 to 157 bkW (145 to 211 bhp) at 1800 rpm. The engine is built on the G3300 platform and supports rich burn emissions compliance with Caterpillar or customer-supplied air-fuel ratio control and aftertreatment.
Oilfield Generator Sets
Factory configurations include oilfield gas generator sets, such as the 110 ekW (138 kVA) 50 Hz (1500 rpm) variant. These units typically feature a 24V starting motor and a 24V, 45-amp charging alternator. The package is covered under a one-year Caterpillar warranty including all components and content.
Industrial Power Units
Naturally aspirated industrial power units are available, such as the 108 bkW (145 HP) model at 1800 rpm. Standard equipment for these configurations includes a radiator, 24V charging alternator, and electric starter. The ADEM A4 control system manages ignition and governing for these industrial applications.
Engine Mounting & Coupling
The engine utilizes an SAE No. 1 flywheel and flywheel housing with SAE standard rotation. The flywheel contains 156 teeth. Mounting options include engine supports and vibration isolators for industrial installations.
Factory-Installed Attachments
Caterpillar offers a large variety of factory-installed engine attachments to reduce packaging time. Standard items include watercooled exhaust manifolds, a dry exhaust elbow (102 mm or 4 in), and a full sump oil pan. Optional guards include fan guards and damper guards.
Emissions & Aftertreatment
Compliance with EPA NSPS is achieved through rich burn operation. Options include Caterpillar-supplied air/fuel ratio control (AFRC) and three-way catalysts (1.0 g NOx and 0.5 g NOx options). Customer-supplied aftertreatment is also supported for site compliance.
All G3306B assemblies by section
Every catalogued assembly group for the Caterpillar G3306B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
6n-5960 Aftercooler Gp-Water
| 03***19 | Bolt; --To Bearing Ret. At Lower Front Shaft Bore | 4 |
| 03***57 | Bolt; --To Reverse Shaft Bearing Retainer & Forward Shaft Bearing Retainer | 4 |
| 12***88 | Housing-Aftercooler | 1 |
6n-3745 Aftercooler Gp-Water
| 03***19 | Bolt; --To Bearing Ret. At Lower Front Shaft Bore | 4 |
| 03***57 | Bolt; --To Reverse Shaft Bearing Retainer & Forward Shaft Bearing Retainer | 8 |
| 12***88 | Housing-Aftercooler | 1 |
1w-9759 Cartridge Gp-Turbocharger
| 1W***59 | Cartridge Group-Turbocharger | 1 |
| 2W***25 | Kit (Cartridge) (Incl. Rings, Seals & Sleeve) | 1 |
| 4M***83 | Ring,Retaining Bearing | 4 |
347-7053 Manifold Gp-Exhaust -Water Cooled
| 00***40 | Connector; (37 Degree) | 2 |
| 0S***08 | Bolt-Support To Starting Engine Timing Gear Housing | 7 |
| 10***58 | Tube As | 1 |
1n-4187 Manifold Gp-Exhaust -Watercooled
| 00***40 | Connector; (37 Degree) | 1 |
| 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 | 1 |
1w-9757 Turbocharger Gp
| 1W***57 | Turbocharger Group | 1 |
| 1W***59 | Cartridge Group-Turbocharger | 1 |
| 5S***17 | Clamp As; (Turbine)(Turbine) | 1 |
2w-0807 Turbocharger Gp
| 03***37 | Spacer; (10.93x19.05x25.4-mm Thk) | 2 |
| 16***00 | Locknut; (High Temperature) | 6 |
| 1S***95 | Gasket-Turbocharger To Manifold; Gasket Turbocharger To Manifold | 1 |
117-4032 Valve Gp-Boost Control
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 1 |
| 11***32 | Valve Group-Boost Control | 1 |
| 3E***04 | Clamp-Hose | 2 |
7n-6226 Valve Gp-Boost Control
| 09***24 | Screw As; (12-24x0.625-In) | 4 |
| 2K***98 | Seal-O-Ring | 1 |
| 3B***03 | Lockwasher | 4 |
117-4028 Air Cleaner Gp
| 11***28 | Air Cleaner Group | 1 |
| 4P***24 | Seal-O-Ring | 1 |
| 6I***01 | Filter Element As-Air | 1 |
6i-2551 Air Cleaner Gp
| 6I***99 | Filter Element As-Air; (Primary) | 1 |
| 6I***00 | Filter Element As-Air; (Secondary) | 1 |
| 6I***51 | Air Cleaner Group | 1 |
117-4027 Air Cleaner Gp
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 3 |
| 11***27 | Air Cleaner Group | 1 |
| 11***28 | Air Cleaner Group | 1 |
117-4033 Air Cleaner Gp
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 11***33 | Air Cleaner Group | 1 |
| 11***34 | Tube As | 1 |
360-8764 Converter Gp-Catalytic
| 12***67 | Plug-Pipe | 2 |
| 27***12 | Clamp | 2 |
| 36***64 | Converter Group-Catalytic | 1 |
344-4894 Elbow Gp-Exhaust
| 0T***31 | Washer (.1046" Thick); (10.3x19x2.5-mm Thk) | 4 |
| 0V***75 | Screw,Cap,Hexagon H Shaft Mtg,Accessory Drive | 4 |
| 1F***58 | Nut-Full; (1/2-13-Thd)(Air Lines) | 4 |
344-4891 Elbow Gp-Exhaust
| 1D***85 | Cap Screw (3 1/4" Long) | 4 |
| 2S***93 | Washer- 5mm (.196 In.) Thick | 4 |
| 34***04 | Adapter-Ring | 1 |
5l-7661 Elbow Gp-Exhaust
| 5L***31 | Clamp Elbow To Adapter | 1 |
| 5L***34 | Elbow-Exhaust; (Turbocharger) | 1 |
| 5L***61 | Elbow Group-Exhaust; Exhaust Elbow Group | 1 |
7l-0369 Elbow Gp-Exhaust
| 0T***31 | Washer (.1046" Thick); (10.3x19x2.5-mm Thk) | 4 |
| 3H***23 | Bolt; (3/8-16x2.25-In) | 2 |
| 5B***90 | Plug-Pipe | 1 |
1l-1508 Elbow-Exhaust
| 1L***08 | Elbow-Exhaust | 1 |
2n-9263 Elbow-Exhaust
| 2N***63 | Elbow-Exhaust | 1 |
2w-7846 Fitting Gp-Exhaust -Flexible
| 1B***58 | Nut-Full; (5/8-11-Thd) | 4 |
| 2W***46 | Fitting Group-Exhaust; -Flexible | 1 |
| 3N***15 | Adapter As; (Flexible) | 1 |
2w-7845 Fitting Gp-Exhaust
| 1A***60 | Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z) | 4 |
| 1B***57 | Nut-Full; 19.05mm(.75in)O.D. | 4 |
| 2W***45 | Fitting Group-Exhaust | 1 |
1w-8823 Flange Gp-Exhaust
| 1A***60 | Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z) | 4 |
| 1F***58 | Nut-Full; (1/2-13-Thd)(Air Lines) | 4 |
| 1W***23 | Flange Group-Exhaust | 1 |
2w-7850 Flange Gp-Exhaust
| 1B***58 | Nut-Full; (5/8-11-Thd) | 4 |
| 20***08 | Bolt; (5/8-11x2-In) | 4 |
| 2W***50 | Flange Group-Exhaust | 1 |
117-4037 Indicator Gp-Air Filter Change
| 11***37 | Indicator Group-Air Filter Change | 1 |
| 2N***23 | Indicator-Air Filter Change; (Air Filter) | 1 |
| 5L***33 | Fitting (To Air Cleaner) | 1 |
117-4031 Indicator Gp-Air Filter Change
| 11***31 | Indicator Group-Air Filter Change | 1 |
| 2N***23 | Indicator-Air Filter Change; (Air Filter) | 1 |
| 5L***33 | Fitting (To Air Cleaner) | 1 |
360-8775 Muffler & Converter Gp
| 12***67 | Plug-Pipe | 2 |
| 27***12 | Clamp | 3 |
| 36***75 | Muffler & Converter Group | 1 |
Basic Engine
2w-7458 Crankshaft As
| 1W***05 | Gear-Crankshaft; (40-Teeth) | 1 |
| 2W***58 | Crankshaft As | 1 |
| 5H***71 | Key,Woodruff Crankshaft Gear | 1 |
9y-2638 Cylinder Head As
| 10***68 | Insert-Valve Seat; (Inlet)(Standard) | 6 |
| 11***21 | Insert-Valve Seat; (0.13-mm Os Od)(0.13-mm Os Od) | 0 |
| 11***22 | Insert-Valve Seat; (0.25-mm Os Od)(0.25-mm Os Od) | 0 |
6i-2402 Cylinder Head Gp
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 11***32 | Guide-Valve | 12 |
| 1P***67 | Cover,Access Cylinder Head | 1 |
6i-2401 Cylinder Head Gp
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 1P***67 | Cover,Access Cylinder Head | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 4 |
9y-3640 Cylinder Head Gp
| 11***15 | Gasket As-Cylinder Head | 1 |
| 2A***29 | Lock,Valve Spring R Cylinder Head | 24 |
| 2N***74 | Gasket-Adapter | 6 |
3n-2885 Damper Gp
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 6 |
| 16***23 | Damper Assem. | 1 |
| 2M***49 | Washer-Retainer To Fan Bracket Assembly | 6 |
7n-6110 Drive Gp-Accessory
| 0S***89 | Bolt, Hex. Hd., 5/8"-11 N.C. X 1 3/4" | 2 |
| 1N***20 | Ball Bearing | 1 |
| 2A***62 | Screw,Cap,Hexagon H Diode Pig Tail To Grd; (1/4-20x.625 In) | 2 |
7n-4137 Flywheel Gp
| 0S***00 | Bolt Flywheel Assembly To Crankshaft | 9 |
| 4W***05 | Flywheel As | 1 |
| 7N***37 | Flywheel Group | 1 |
1w-0592 Pan Gp-Oil
| 0L***52 | Capscrew (3/8 - 16 Nc X 3 1/4 Gd8, Hex) | 12 |
| 16***00 | Gasket; (Oil Pan) | 1 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 26 |
4p-2699 Piston & Rod Gp
| 11***22 | Ring-Piston; (Intermediate) | 1 |
| 1P***56 | Bolt,Shoulder Connecting Rod | 2 |
| 33***69 | Bearing-Connecting Rod | 1 |
1w-5122 Support Gp-Engine
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 4 |
| 0S***92 | Bolt--Cover To Flywheel Housing | 4 |
| 1W***22 | Support Group-Engine | 1 |
3n-6695 Support Gp-Engine -Front
| 1N***26 | Support Assem. | 2 |
| 3N***95 | Support Group-Engine | 1 |
| 4B***43 | Bolt -Cover To Flywheel Housing | 4 |
7e-1556 Valve Mechanism Gp
| 5S***18 | Push Rod,Engine Pop Valve Lifter | 12 |
| 7C***95 | Valve Mechanism Group | 1 |
| 7E***56 | Valve Mechanism Group | 1 |
7c-3795 Valve Mechanism Gp
| 1B***09 | Bolt-- Head To Cylinder Block | 1 |
| 1L***72 | Dowel (Part Of 8s***99 Assem.) | 1 |
| 2S***36 | Washer,Flat Cover Assembly Mounting And Flywheel Housing Cover | 1 |
3n-2886 Adapter Gp-Seal -Crankshaft
| 0L***29 | Bolt- 7.63 cm(3 In.) Long - Location "H" | 2 |
| 1W***06 | Adapter-Seal | 1 |
| 2P***92 | Seal (Id=133.02mm) | 1 |
3n-2755 Belt Tightener Gp
| 03***15 | Bolt 5t***53 Cable As To 5t***18 Lever | 3 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 1 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 1 |
1n-4406 Camshaft Gp
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
| 7E***80 | Camshaft | 1 |
7n-1292 Cover Gp-Cylinder Block
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 2 |
| 1M***30 | Cover --Starting Engine Water Passage; Cover-- Starting Engine Water Passage | 1 |
2p-6530 Cover Gp-Cylinder Head
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 1P***67 | Cover,Access Cylinder Head | 1 |
| 2P***30 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
329-9623 Cover Gp-Front Housing
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 2 |
| 32***23 | Cover Group-Front Housing | 1 |
| 5F***06 | Packing,Preformed Pump Mtg Part Of Kit P/N 5r***25 | 1 |
8n-4745 Cover Gp-Valve Mechanism
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 15 |
| 13***47 | Seal-Integral; (Valve Cover) | 1 |
| 2W***86 | Cover As-Cylinder Head | 1 |
6n-8079 Crankshaft Gp
| 10***52 | Plate-Thrust | 2 |
| 23***33 | Bearing-Main; (Standard)(Standard) | 7 |
| 2W***58 | Crankshaft As | 1 |
7n-6550 Cylinder Block Gp
| 10***12 | Insert; (Liner Seat) (.822-mm Thk) | 0 |
| 10***18 | Insert; (Liner Seat) (1.605-mm Thk) | 0 |
| 10***27 | Insert-Liner Seat (2.710mm Thk) | 0 |
7n-8016 Cylinder Block Gp
| 11***50 | Gasket-Plate | 1 |
| 1S***40 | Dowel; (30.23 mm X 9.37 mm) | 1 |
| 3S***96 | Seal-O-Ring; (9.53mm Id) | 1 |
1n-3576 Cylinder Block Gp
| 1N***76 | Cylinder Block Group | 1 |
| 1S***40 | Dowel; (30.23 mm X 9.37 mm) | 1 |
| 2S***58 | Washer-Hard; (17x29x3-mm Thk)(Engine Brake) | 14 |
3n-7019 Drive Gp-Fan
| 1P***45 | Bracket Assem, Including: | 1 |
| 1P***46 | Shaft-Fan | 1 |
| 2B***47 | Bolt (1/2" X 2 1/4") Rops Mounting Bracket To Cover Assembly | 4 |
197-0740 Drive Gp-Fan
| 19***40 | Drive Group-Fan | 1 |
| 1P***45 | Bracket Assem, Including: | 1 |
| 1P***46 | Shaft-Fan | 1 |
3n-7210 Drive Gp-Fan
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 4 |
| 1H***03 | Bolt; (5/16-24x2-In) | 2 |
| 2F***56 | Locking Plate,Nut A Gear Mtg Part Of Kit P/N 5r***25 | 1 |
7n-9536 Fastener Gp-Cylinder Head
| 1B***09 | Bolt-- Head To Cylinder Block | 5 |
| 1D***95 | Bolt (5/8-11x6in); (5/8-11x6-In) | 20 |
| 2S***36 | Washer,Flat Cover Assembly Mounting And Flywheel Housing Cover | 25 |
329-9622 Fastener Gp-Front Housing
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 11 |
| 1C***51 | Bolt--Installation Of 2v***26 Retainer | 1 |
| 32***22 | Fastener Group-Front Housing | 1 |
329-9621 Gear Gp-Front -Timing
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 0S***48 | Bolt,Machine Camshaft Gear Mounting | 4 |
| 19***23 | Gear As-Idler; (60-Teeth) | 1 |
343-3821 Guard Gp-Belt
| 1F***50 | Nut Rops Support | 9 |
| 21***54 | Boss | 2 |
| 34***21 | Guard Group-Belt | 1 |
345-7526 Guard Gp-Belt
| 1F***50 | Nut Rops Support | 13 |
| 34***28 | Bracket | 1 |
| 34***26 | Guard Group-Belt | 1 |
8n-2395 Housing Gp-Flywheel
| 14***14 | Housing-Flywheel | 1 |
| 1A***60 | Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z) | 13 |
| 2A***62 | Gasket; (Rear Gear Housing Drain Plug) | 2 |
327-3489 Housing Gp-Front
| 32***84 | Gasket | 1 |
| 32***85 | Plate | 1 |
| 32***86 | Gasket-Front | 1 |
8n-3157 Lifting Gp-Engine
| 4B***23 | Bolt 3.18 cm(1.25 In.)Long | 6 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 6 |
| 6N***50 | Plate-Lifting Eye | 1 |
126-0185 Piston & Rod Gp
| 11***22 | Ring-Piston; (Intermediate) | 1 |
| 12***85 | Piston & Rod Group | 1 |
| 1P***56 | Bolt,Shoulder Connecting Rod | 2 |
3n-5627 Pulley Gp-Fan Drive
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 6 |
| 3N***02 | Pulley-Fan Drive; (3-Groove) | 1 |
| 3N***27 | Pulley Group | 1 |
3n-6128 Pulley Gp-Crankshaft
| 2P***07 | Bolt-Washer Head; (3/8-16x2.25-In) | 6 |
| 3N***27 | Pulley-Crankshaft; (2-Groove) | 1 |
| 3N***28 | Pulley Group-Crankshaft | 1 |
3n-2884 Pulley Gp-Crankshaft
| 3N***84 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
| 5S***48 | Washer-Special | 1 |
| 6B***10 | Bolt (National Fine); (3/4-16x3.25-In) | 1 |
3n-5626 Pulley Gp-Fan Drive
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 6 |
| 3N***26 | Pulley Group-Fan Drive | 1 |
| 4N***79 | Pulley-Fan Drive; (3-Groove) | 1 |
2p-6224 Seal Gp-Crankshaft
| 2P***24 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
| 4W***52 | Seal Group-Crankshaft; (Counter Clockwise Rotation) | 1 |
| 9Y***95 | Seal Group-Crankshaft; (Clockwise Rotation) | 1 |
136-2150 Shaft Gp-Stub
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 6 |
| 13***50 | Shaft Group-Stub | 1 |
| 1D***28 | Key | 1 |
6l-2692 Shaft Gp-Stub
| 0S***53 | Bolt,Machine Flywheel Assembly | 9 |
| 1D***28 | Key | 1 |
| 4D***04 | Washer,Flat Cover Mtg,Accessory Drive | 9 |
3n-2883 Support Gp-Engine
| 0L***29 | Bolt- 7.63 cm(3 In.) Long - Location "H" | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 2H***30 | Bolt 2.875 In. (73.03 mm) Long; (3/8-16x2.88-In)(Marked X) | 3 |
9l-2520 V-Belt Set
| 9L***20 | V-Belt Set | 1 |
8l-4526 V-Belt Set
| 8L***26 | V-Belt Set | 1 |
Cooling System
139-6099 Adapter Gp-Fan
| 13***99 | Adapter Group-Fan | 1 |
| 7C***82 | Adapter-Fan | 1 |
| 7X***31 | Plug-Pipe; (Flywheel Housing Drain) | 1 |
5n-2087 Adapter Gp-Fan
| 4N***71 | Adapter-Fan | 1 |
| 5N***87 | Adapter Group-Fan | 1 |
| 9F***46 | Seal-Adapter To Hub To Bearing | 1 |
5n-7147 Adapter Gp-Fan
| 4N***70 | Fan Adaptor | 1 |
| 5N***47 | Adapter Group-Fan; Fan Adaptor Gp (See Page 18) | 1 |
| 9F***46 | Seal-Adapter To Hub To Bearing | 1 |
7c-7414 Housing & Regulator Gp
| 11***77 | Regulator-Water Temperature; (86-Deg C To 97-Deg C) | 1 |
| 1P***89 | Pipe-Head Outlet | 1 |
| 33***53 | Gasket | 2 |
7e-1568 Lines Gp-Vent
| 03***68 | Elbow (For Use With Shallow Pan) | 1 |
| 7E***62 | Tube As-Vent | 1 |
| 7E***68 | Lines Group-Vent | 1 |
106-1878 Lines Gp-Vent
| 10***78 | Lines Group-Vent | 1 |
| 27***92 | Hose; (88.4-cm) | 0 |
| 5D***26 | Clamp-Band; (9/16 To 1 1/16) | 2 |
7c-8085 Lines Gp-Vent
| 00***98 | Elbow (For Use With Deep Pan) | 1 |
| 5P***17 | Elbow; (Swivel) | 1 |
| 7C***26 | Tube As | 1 |
2w-0805 Lines Gp-Turbocharger Water
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 8 |
| 1W***57 | Tube As-Turbocharger | 1 |
| 2H***55 | Bolt 15.88mm(.625in.); 1.59cm(.62in.)Lg. | 1 |
8n-4112 Lines Gp-Water -Bypass Relief
| 7N***72 | Elbow | 1 |
| 7X***31 | Plug-Pipe; (Flywheel Housing Drain) | 3 |
| 8N***12 | Lines Group-Water; -Bypass Relief | 1 |
2w-6779 Lines Gp-Water -Bypass Relief
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
| 0T***65 | Bolt--3/8" X 3 1/2"--Use As Required; Bolt 5t***56 Plate To Cover Gp 4n***72 | 1 |
256-6746 Lines Gp-Water -Auxiliary Water Pump
| 03***07 | Connector; (Flared) | 1 |
| 1A***79 | Capscrew (5/16 - 18 Nc X 1 1/2 Gd5, Hex) | 4 |
| 1D***39 | Bolt-Top Tank,Bottom Tank To Accessory | 4 |
4w-1111 Lines Gp-Vent
| 3B***52 | Elbow; --Cross To Hose Assembly To Air Gauge | 1 |
| 4W***11 | Lines Group-Water | 1 |
| 5D***26 | Clamp-Band; (9/16 To 1 1/16) | 2 |
7n-6109 Pump Gp-Auxiliary Water
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 3 |
| 22***50 | Pump Group-Auxiliary Water | 1 |
| 7N***09 | Pump Group-Auxiliary Fresh Water | 1 |
7n-6210 Pump Gp-Water
| 0T***55 | Bolt; (3/8-16x4.25-In)(Location S) | 2 |
| 17***64 | Pump Group-Water | 1 |
| 5F***06 | Packing,Preformed Pump Mtg Part Of Kit P/N 5r***25 | 1 |
172-7764 Pump Gp-Water
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 15***82 | Seal-Lip Type | 1 |
| 16***50 | Seal Group; (Water Pump) | 1 |
107-9346 Radiator Gp
| 00***43 | Elbow 5wd342 - Up Including 5wd329 - 335, 5wd337 - 340 | 2 |
| 00***83 | Nipple-Pipe; (Hexagon) | 1 |
| 10***45 | Brace | 1 |
2w-9073 Radiator Gp
| 22***55 | Strap | 2 |
| 2W***77 | Brace-Radiator Support | 1 |
| 2W***70 | Support As-Rh; (R.H.) | 1 |
133-9673 Radiator Gp
| 13***73 | Radiator Group | 1 |
| 5S***49 | Bolt; (1/4-20x0.5-In)(1/4-20x.5in) | 8 |
| 6L***17 | Cap-Radiator; (7-Psi)(Coolant Tank) | 1 |
8n-8838 Radiator Gp
| 03***55 | Locknut; (5/16-18-Thd)(Marked X) | 82 |
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 4 |
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 14 |
3n-5658 Adapter Gp-Fan
| 3N***58 | Adapter Group | 1 |
| 4N***80 | Adapter | 1 |
| 9F***46 | Seal-Adapter To Hub To Bearing | 1 |
7w-0256 Cooler Gp-Fltr Base & Eng Oil
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 8 |
7w-0257 Cooler Gp-Fltr Base & Eng Oil
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
| 1R***08 | Filter As-Engine Oil; (Advanced Efficiency)(High Efficiency) | 1 |
| 2W***61 | Gasket | 1 |
4n-4686 Fan Gp-Blower
| 1N***73 | Spider As-Fan; (6 Blades) | 1 |
| 2L***80 | Spacer-Spider; (8.74mm Thk) | 1 |
| 4N***86 | Fan Group | 1 |
4n-2569 Fan Gp-Blower
| 4N***69 | Fan Group-Blower | 1 |
| 4N***71 | Spider As-Fan; (6 Blades) | 1 |
| 8T***02 | Bolt-Plt; (3/8unc X 1 1/8) | 6 |
4n-4685 Fan Gp-Suction
| 1N***71 | Spider As-Fan; (6 Blade) | 1 |
| 4N***85 | Fan Group-Suction | 1 |
| 5L***13 | Spacer-Spider; (0.54in Thk) | 1 |
4n-2570 Fan Gp-Suction
| 4N***70 | Fan Group-Suction | 1 |
| 4N***72 | Spider As-Fan | 1 |
| 8T***02 | Bolt-Plt; (3/8unc X 1 1/8) | 6 |
227-9850 Pump Gp-Auxiliary Water
| 1B***02 | Key-- Adapter To Compression Release Shaft | 1 |
| 1N***20 | Ball Bearing | 1 |
| 1N***22 | Housing Assem. | 1 |
Electrical And Starting System
3n-8423 Contactor Gp-Press & Temp
| 3N***67 | Contactor Group; Oil Pressure And Water Temperature Contactor Group | 1 |
| 3N***21 | Wiring Diagram | 1 |
| 3N***23 | Contactor Group-Press & Temp | 1 |
7n-4312 Indicator Gp-Timing
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 1 |
| 7N***12 | Indicator Group-Timing | 1 |
6v-5538 Starting Motor Gp-Electric
| 3E***25 | Cover As; (Starting Motor) | 1 |
| 3E***27 | Kit-Bearing; (Starting Motor)(Incl Bearing Seals & Spacers) | 1 |
| 3E***28 | Kit; (Brush) (Includes O-Rings, Screw, Spring, & Brush) | 1 |
207-1558 Starting Motor Gp-Electric
| 03***23 | Bolt; (1/4-28x1-In) | 5 |
| 1H***29 | Plate,Insulation Starter Motor Assembly | 2 |
| 20***58 | Starting Motor Group-Electric | 1 |
207-1560 Starting Motor Gp-Electric
| 20***60 | Starting Motor Group-Electric | 1 |
| 20***61 | Starting Motor Group-Electric | 1 |
| 6V***38 | Starting Motor Group-Electric | 1 |
207-1561 Starting Motor Gp-Electric
| 03***23 | Bolt; (1/4-28x1-In) | 5 |
| 20***61 | Starting Motor Group-Electric | 1 |
| 25***79 | Kit-Solenoid; (24-Volt)(Starting Motor) | 1 |
1w-5516 Starting Motor Gp-Electric
| 1W***16 | Starting Motor Group-Electric | 1 |
| 20***58 | Starting Motor Group-Electric | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
117-3032 Starting Motor Gp-Electric
| 11***32 | Starting Motor Group-Electric | 1 |
| 20***58 | Starting Motor Group-Electric | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
2n-2342 Valve As-Solenoid
| 2N***42 | Valve As-Solenoid | 1 |
| 34***92 | Coil As | 1 |
6t-1395 Alternator Gp-Charging
| 13***78 | Regulator Group-Voltage; (24 Volt)(Alternator) | 1 |
| 14***04 | Kit-Hardware; (Alternator) | 1 |
| 14***05 | Kit-Terminal; (Alternator) | 1 |
3n-2706 Alternator Gp-Charging
| 0S***87 | Bolt-Bracket Assembly To Timing Gear | 1 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 1 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 1 |
100-4511 Alternator Gp-Charging
| 0S***87 | Bolt-Bracket Assembly To Timing Gear | 1 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 1 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 1 |
340-8067 Box & Mounting Gp -Power Distribution
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 13***89 | Clip; (Ladder) | 1 |
349-8690 Box Gp-Control
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 4 |
| 10***59 | Receptacle | 1 |
| 10***43 | Block-Fuse | 5 |
313-8917 Box Gp-Control -Messenger
| 15***23 | Hinge As | 2 |
| 15***94 | Seal; (Fastener) | 4 |
| 31***99 | Panel Group-Instrument | 1 |
105-3511 Box Gp-Junction
| 0S***14 | Bolt (.25" Diameter-.50" Long) | 2 |
| 10***11 | Box Group-Junction | 1 |
| 1N***70 | Circuit Breaker As; (12.5-Ampere) | 1 |
4p-5469 Box Gp-Junction
| 03***13 | Screw-Forming; (10-24x0.37-In) | 2 |
| 10***27 | Film-Identification; (Junction Box Wire) | 1 |
| 1L***61 | Plug (Use Without Ammeter); (Mtd. On Instr. Panel) | 1 |
6t-3645 Circuit Breaker Gp
| 6T***45 | Circuit Breaker Group; -60-Ampere | 1 |
| 6V***78 | Nut; (10-32-Thd) | 2 |
| 8F***34 | Lockwasher; (External Teeth) | 2 |
5n-0369 Circuit Breaker Gp
| 5N***69 | Circuit Breaker Group | 1 |
| 5P***94 | Screw-Machine; (8-32x0.75-In) | 2 |
| 6T***45 | Circuit Breaker Group; -60-Ampere | 1 |
5n-8857 Contactor As-Water Temp
| 5N***57 | Contactor As-Water Temp | 1 |
| 7N***79 | Socket-Governor Solenoid Wire To Housing | 1 |
| 7N***80 | Pin-Connector; (14-Ga To 18-Ga) | 2 |
3n-6867 Contactor Gp-Press & Temp
| 2N***55 | Switch (Oil Pressure) | 1 |
| 3N***67 | Contactor Group; Oil Pressure And Water Temperature Contactor Group | 1 |
| 5N***57 | Contactor As-Water Temp | 1 |
349-8686 Control & Mtg Gp-Engine Elek
| 09***07 | Spacer; (8.2x18x0.5-mm Thk) | 4 |
| 2B***95 | Cap Screw--Tube Assembly To Air Inlet Pipe | 4 |
| 34***86 | Control & Mtg Group-Engine Elek | 1 |
340-8071 Control & Mtg Gp-Engine Elek
| 09***07 | Spacer; (8.2x18x0.5-mm Thk) | 3 |
| 15***76 | Mount-Isolation | 8 |
| 26***18 | Bracket | 2 |
334-4708 Control Gp-Engine Electronic
| 33***08 | Control Group-Engine Electronic | 1 |
| 34***04 | Control Group-Engine Electronic | 1 |
349-8685 Harness As-Panel
| 10***38 | End-Wire; (16-Ga) | 13 |
| 11***14 | End-Wire; (18-Ga) | 3 |
| 11***97 | End-Wire; (14-Ga) | 3 |
311-7100 Harness As-Panel
| 10***38 | End-Wire; (16-Ga) | 13 |
| 11***14 | End-Wire; (18-Ga) | 3 |
| 11***97 | End-Wire; (14-Ga) | 3 |
311-7101 Harness As-Panel
| 10***38 | End-Wire; (16-Ga) | 13 |
| 11***14 | End-Wire; (18-Ga) | 3 |
| 11***97 | End-Wire; (14-Ga) | 3 |
349-8683 Ignition Gp-Gas Engine
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 4 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
| 10***85 | Boot | 6 |
329-9627 Ignition Gp-Gas Engine
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 1 |
| 2B***95 | Cap Screw--Tube Assembly To Air Inlet Pipe | 12 |
334-7720 Ignition Gp-Gas Engine
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 4 |
| 10***85 | Boot | 6 |
| 10***34 | Film-Warning | 1 |
329-9626 Ignition Gp-Gas Engine
| 2B***95 | Cap Screw--Tube Assembly To Air Inlet Pipe | 12 |
| 2N***39 | Spark Plug | 6 |
| 2W***47 | Transformer As | 6 |
104-9432 Mounting Gp-Circuit Breaker
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 1 |
| 0S***92 | Bolt--Cover To Flywheel Housing | 2 |
| 10***32 | Mounting Group-Circuit Breaker | 1 |
3n-8806 Mounting Gp-Contactor
| 0S***13 | Bolt-- Contactor To Bracket | 3 |
| 2D***25 | Tee-To Shut-Off Control Group | 1 |
| 2N***31 | Elbow-Pipe (45 Degree) | 1 |
104-3031 Mounting Gp-Contactor
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 1 |
| 10***31 | Mounting Group-Contactor | 1 |
| 10***53 | Support As | 1 |
311-7098 Sensor & Mtg Gp-Electric
| 12***68 | Socket-Connector; (14-Ga) | 3 |
| 23***13 | Plug As-Connector; (3-Pin) | 1 |
| 23***08 | Plug As-Connector; (4-Pin) | 4 |
349-8697 Sensor & Mtg Gp-Electric
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 11***18 | Clip | 1 |
311-7095 Sensor & Mtg Gp-Electric
| 03***28 | Seal-O-Ring | 1 |
| 10***97 | Adapter | 1 |
| 11***85 | Seal-O-Ring; (13.94mm Id) | 1 |
189-5746 Sensor Gp-Speed
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 14***36 | Pin-Connector; (14-Ga To 18-Ga) | 2 |
| 17***49 | Strap; (Marker) | 1 |
3e-7886 Sensor Gp-Speed
| 17***49 | Strap; (Marker) | 1 |
| 3E***86 | Sensor Group-Speed; -Magnetic, Low Output | 1 |
| 7N***79 | Socket-Governor Solenoid Wire To Housing | 1 |
105-9625 Shutoff Gp-Electrical
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 9 |
| 10***25 | Shutoff Group-Electrical | 1 |
| 3N***23 | Contactor Group-Press & Temp | 1 |
6i-3975 Shutoff Gp-Electrical
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 9 |
| 0S***20 | Bolt--Customer Grounding Bolt | 2 |
| 2N***87 | Elbow-Flared Needed For Customer; (Used Without Brakesaver) | 1 |
105-9623 Shutoff Gp-Electrical
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 9 |
| 10***23 | Shutoff Group-Electrical | 1 |
| 3N***23 | Contactor Group-Press & Temp | 1 |
2w-3560 Silencer Gp-Air Starting
| 2W***60 | Silencer Group-Air Starting | 1 |
7w-9654 Starting Motor Gp-Air
| 1H***90 | Strip (Felt) | 1 |
| 1K***47 | Washer; (17.5x28.6x3-mm Thk) | 1 |
| 2S***58 | Washer-Hard; (17x29x3-mm Thk)(Engine Brake) | 2 |
329-9634 Starting Motor Gp-Air
| 1H***90 | Strip (Felt) | 1 |
| 1K***47 | Washer; (17.5x28.6x3-mm Thk) | 1 |
| 25***96 | Valve Group-Solenoid; -Air Starting | 1 |
7w-9655 Starting Motor Gp-Air
| 06***19 | Ball Bearing | 1 |
| 12***33 | Pinion-Drive; (12-Teeth) | 1 |
| 1S***56 | Bearing-Ball | 1 |
148-0757 Switch Gp-Magnetic -Starting Motor
| 14***57 | Switch Group-Magnetic; (Inlet Air Heater Power Relay) | 1 |
| 17***29 | Switch Group-Magnetic | 1 |
| 17***30 | Switch Group-Magnetic; (Inlet Air Heater Power Relay) | 1 |
175-2330 Switch Gp-Magnetic
| 01***80 | Lockwasher | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 17***30 | Switch Group-Magnetic; (Inlet Air Heater Power Relay) | 1 |
175-2329 Switch Gp-Magnetic
| 01***80 | Lockwasher | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 17***29 | Switch Group-Magnetic | 1 |
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 |
103-0692 Valve Gp-Solenoid
| 10***92 | Valve Group-Solenoid; -Gas Shutoff | 1 |
| 7X***78 | Coil As | 1 |
1l-5011 Valve Gp-Air Starting
| 0T***20 | Bolt (1.25 In. Long X .438 In. Dia.) | 1 |
| 1H***69 | Button-Spring | 1 |
| 1H***72 | Plate-Pressure | 1 |
349-8693 Wiring Gp-Alternator
| 11***43 | Sleeve-Plastic; (32-mm Dia)(240-cm) | 0 |
| 11***62 | Tube-Heat Shrink; (10.85-mm Dia)(299-cm) | 0 |
| 12***10 | Boot; (Black) | 1 |
329-9635 Wiring Gp-Engine -Starting
| 00***34 | Protector | 4 |
| 11***62 | Tube-Heat Shrink; (10.85-mm Dia)(299-cm) | 0 |
| 12***75 | Tube-Heat Shrink; (7.44-mm Dia)(560-cm) | 0 |
101-8636 Wiring Gp-Engine
| 10***34 | Harness As-Wiring | 1 |
| 10***36 | Wiring Group-Engine | 1 |
| 10***31 | Mounting Group-Contactor | 1 |
329-4546 Wiring Gp-Engine -Starting
| 00***34 | Protector | 4 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 11***62 | Tube-Heat Shrink; (10.85-mm Dia)(299-cm) | 0 |
311-7091 Wiring Gp-Engine
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 5 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 10***62 | Screw-Machine; (4-40x0.63-In) | 4 |
101-8630 Wiring Gp-Engine
| 10***70 | Harness As-Wiring | 1 |
| 10***30 | Wiring Group-Engine | 1 |
311-7097 Wiring Gp-Engine
| 03***28 | Seal-O-Ring | 1 |
| 11***31 | Adapter; (1/2-14-Nptf-Thd)(Transmission Oil Temperature) | 1 |
| 12***84 | Tube-Heat Shrink; (3.2-mm Dia)(6.5-cm Each) | 0 |
349-8688 Wiring Gp-Engine
| 12***84 | Tube-Heat Shrink; (3.2-mm Dia)(6.5-cm Each) | 0 |
| 12***74 | Tube-Heat Shrink; (5.72-mm Dia)(950-cm) | 0 |
| 13***89 | Clip; (Ladder) | 1 |
311-7090 Wiring Gp-Engine
| 03***28 | Seal-O-Ring | 1 |
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 4 |
| 10***62 | Screw-Machine; (4-40x0.63-In) | 4 |
103-0699 Wiring Gp-Engine
| 10***99 | Wiring Group-Engine | 1 |
| 10***31 | Mounting Group-Contactor | 1 |
| 12***74 | Tube-Heat Shrink; (5.72-mm Dia)(950-cm) | 0 |
Engine Arrangement
329-9619 Engine Ar
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
| 1P***44 | Breather Group | 1 |
| 1W***92 | Pan Group-Oil | 1 |
329-9620 Engine Ar
| 12***85 | Piston & Rod Group | 6 |
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
| 1P***44 | Breather Group | 1 |
Fuel System
1n-9306 Valve As-Gas Shutoff
| 1N***06 | Valve As-Shutoff | 1 |
331-8051 Carburetor
| 33***51 | Carburetor | 1 |
341-1082 Carburetor Gp
| 09***24 | Screw As; (12-24x0.625-In) | 4 |
| 0T***20 | Bolt (1.25 In. Long X .438 In. Dia.) | 2 |
| 1B***90 | Bolt; (5/16-18x1.375-In)(Rh Front Cover) | 4 |
342-6569 Carburetor Gp
| 09***24 | Screw As; (12-24x0.625-In) | 4 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 4 |
| 0T***20 | Bolt (1.25 In. Long X .438 In. Dia.) | 2 |
329-9628 Carburetor Gp
| 00***78 | Washer; (0.194x0.35x0.056-In Thk) | 5 |
| 13***96 | Diaphragm As | 1 |
| 32***28 | Carburetor Group; -Natural Gas | 1 |
321-6969 Filter Gp-Fuel
| 09***13 | Plug-Pipe | 1 |
| 32***69 | Filter Group-Fuel | 1 |
| 32***81 | Filter Element-Fuel; (Gas) | 1 |
310-4078 Regulator Gp-Gas Pressure
| 00***63 | Elbow, 90 Deg Street, 3/4in. N.P.T. | 1 |
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0S***18 | Bolt; (5/16-18x1-In)(Hydraulic Pump) | 2 |
310-4077 Regulator Gp-Gas Pressure
| 03***68 | Elbow (For Use With Shallow Pan) | 1 |
| 1B***75 | Bolt (" " " ); Bolt ( " " " ) | 2 |
| 1L***44 | Tee | 1 |
341-1081 Regulator Gp-Gas Pressure
| 03***68 | Elbow (For Use With Shallow Pan) | 1 |
| 1B***75 | Bolt (" " " ); Bolt ( " " " ) | 2 |
| 2W***22 | Regulator-Pressure; (Gas) | 1 |
342-6568 Regulator Gp-Gas Pressure
| 00***63 | Elbow, 90 Deg Street, 3/4in. N.P.T. | 1 |
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0S***18 | Bolt; (5/16-18x1-In)(Hydraulic Pump) | 2 |
341-1083 Valve Gp-Fuel
| 1H***14 | Bolt,Machine Engine Oil Filter Assembly | 4 |
| 33***43 | Actuator Group-Governor; (Fuel) | 1 |
| 34***83 | Valve Group-Fuel | 1 |
341-1084 Valve Gp-Fuel
| 1H***14 | Bolt,Machine Engine Oil Filter Assembly | 4 |
| 33***42 | Actuator Group-Governor; (Fuel) | 1 |
| 34***84 | Valve Group-Fuel | 1 |
Lubrication System
4w-8538 Gauge Gp-Oil Level (Dipstick)
| 2B***95 | Cap Screw--Tube Assembly To Air Inlet Pipe | 2 |
| 2W***21 | Gasket | 1 |
| 4W***83 | Guide As-Oil Level Gauge | 1 |
7e-0571 Lines Gp-Engine Oil
| 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 | 3 |
| 11***87 | Seal-O-Ring (23.16 mm Id) | 2 |
2w-0806 Lines Gp-Turbocharger Oil
| 03***69 | Elbow-Flared; (1/2-14 Nptf) | 1 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
7w-0255 Base Gp-Oil Filter
| 0S***18 | Bolt; (5/16-18x1-In)(Hydraulic Pump) | 2 |
| 1B***90 | Bolt; (5/16-18x1.375-In)(Rh Front Cover) | 2 |
| 1P***67 | Plunger; (Engine Oil Cooler Relief Valve) | 2 |
1p-4244 Breather Gp
| 1P***44 | Breather Group | 1 |
| 2W***62 | Breather As-Crankcase; (Engine) | 1 |
| 3H***43 | Bolt,Machine Breather Assembly To Cover | 1 |
2p-6855 Filler Gp-Engine Oil
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 2 |
| 2A***11 | Washer; (5.5x12.3x0.8-mm Thk) | 1 |
| 2P***19 | Pipe-Oil Filler | 1 |
1n-4874 Fumes Disposal Gp
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 1 |
| 1N***74 | Fumes Disposal Group | 1 |
9l-5651 Pump Gp-Engine Oil
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 2 |
| 3B***15 | Bolt Guard Assembly To Accessory Drive Housing | 2 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 4 |
7w-4457 Pump Gp-Engine Oil
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 1P***46 | Washer-Hard; (10.2x35x6-mm Thk) | 1 |
| 6I***43 | Pump Group-Engine Oil; -1-Section Gear | 1 |
6i-1343 Pump Gp-Engine Oil
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 1 |
| 0T***73 | Bolt (3/8) (63.5mm Long) (On Cab Of Cover Assem.) | 2 |
| 1B***75 | Bolt (" " " ); Bolt ( " " " ) | 1 |
Operator Station
239-5025 Control Gp-Unprgmed Monitor -Messenger
| 23***25 | Control Group-Unprgmed Monitor; -Messenger | 1 |
7n-9261 Meter Gp-Service
| 1P***23 | Kit-Meter Window Service; (Window) | 1 |
| 4M***03 | Packing,Preformed Hourmeter Mtg | 1 |
| 4N***57 | Meter Group-Service | 1 |
311-7099 Panel Gp-Instrument
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 10***38 | End-Wire; (16-Ga) | 4 |
| 10***07 | Switch-Operator; (Secondary Stop Push Button) | 1 |
Service Equipment And Supplies
352-9862 Certification Gp-Generator Set
| 35***62 | Certification Group-Generator Set | 1 |
| 35***92 | Tag | 1 |
| 8L***13 | Strap-Cable(Tie 5.50" Long) | 2 |
6l-4502 Chart-Plate & Film
| 11***52 | Plate & Film Group; -Engine Information | 1 |
| 22***28 | Film-Warning; (Shock Hazard) | 2 |
| 22***81 | Film-Warning; -Universal | 2 |
352-9860 Film Gp
| 35***60 | Film Group | 1 |
| 35***91 | Tag | 1 |
| 8L***13 | Strap-Cable(Tie 5.50" Long) | 2 |
357-1662 Plate & Film Gp
| 35***62 | Plate & Film Group | 1 |
| 36***28 | Tag | 1 |
| 8L***13 | Strap-Cable(Tie 5.50" Long) | 1 |
G3306B serial number reference
The PIN plate is located on the right side of the engine, near the fuel injection pump or on the valve cover. The prefix is the first three alphanumeric characters of the serial number stamped on the plate.
| Prefix | Identifies | Notes |
|---|---|---|
| 1DG | 3306B GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| 1DG | 3306BH GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| 2AJ | 3306B GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| 2TM | 3306B GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| 3RG | 3306B GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| 5JC | 3306B GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| 8JJ | 3306B GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| 8NS | 3306B GENERATOR SET | Generator set application. Varies by configuration/series. |
| 9DS | 3306B GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| 9NR | 3306B GEN SET ENGINE | Generator set application. Varies by configuration/series. |
| B8D | 3306B GENERATOR SET | Generator set application. Varies by configuration/series. |
| EFA | 3306B GENERATOR SET | Generator set application. Varies by configuration/series. |
| LRW | 3306B GENERATOR SET | Generator set application. Varies by configuration/series. |
| R6S | G3306B NA | Natural gas industrial application. Confirmed by dealer inventory listing. |
Frequently asked questions
What is the engine displacement and configuration?
The G3306B has a 10.5 L (638 in³) displacement with an inline-six cylinder configuration. It features a 122.92 mm (4.8 in) bore and a 152 mm (6 in) stroke.
What is the dry operating weight?
The dry weight of the G3306B engine is 948 kg (2090 lb). This weight varies slightly depending on the specific attachments and configuration options installed.
What engine replaced the G3306B?
The G3306B is part of the G3300 series platform. It is succeeded by the G3500 series engines in Caterpillar's current oil and gas portfolio, which offer higher power densities and advanced emissions control.
What G3306B owners discuss
What is the primary power output and application for the Caterpillar G3306B engine?
The G3306B is a gas compression engine rated at 108-157 bkW (145-211 bhp) at 1800 rpm. It is designed for gas lift, gas gathering, and wellhead gas compression applications.
How does the G3306B handle emissions compliance?
The engine is EPA NSPS site compliant capable. It requires Caterpillar or customer-provided air-fuel ratio control and aftertreatment to meet these standards.
What are the typical wear patterns or maintenance concerns for the G3306B series?
The G3306B utilizes the S•O•SSM program to monitor internal engine component condition, unwanted fluids, and combustion by-products. This allows for site-specific oil change intervals rather than fixed hour-based changes.
What electrical or sensor issues are common in the G3306B?
Not documented for this exact serial range — verify with your dealer.
What should be checked when buying a used G3306B?
Verify the air-fuel ratio control and aftertreatment system configuration, as these are critical for NSPS compliance and vary by site installation. Check S•O•SSM history for signs of coolant contamination or combustion by-product presence.
Is the G3306B mechanically governed or electronically controlled?
Not documented for this exact serial range — verify with your dealer.
What is the recommended fluid for the G3306B engine oil system?
Not documented for this exact serial range — verify with your dealer.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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