Service parts for the 3412
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredEquivalents: DONALDSON P533884, BALDWIN RS3701, NAPA 6747
Fuel system
1 requiredEquivalents: DONALDSON P502178, CATERPILLAR 3090121, AMERICAN MOTORS CORPORATION SFH3875
Oil system
1 requiredEquivalents: BALDWIN B7299, NAPA 7792, CATERPILLAR 1R808
Belts
1 requiredElectrical
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 500 kW |
| Standby kVA | 500 |
| Prime power | 455 kW |
| Controller | EMCP II+ |
| Alternator | SR4B (4-pole) |
| Voltage options | 480 V |
| Phase | 3 |
| Rated current | 962.3 A |
| Power factor | 1 |
| Battery group | 8D |
| Battery voltage | 24 V |
| Battery quantity | 4 |
| Dimensions (L×W×H) | 2092×1302×1447 mm |
| Dry weight | 2141 kg |
Engine
| Coolant capacity | 750.0 L |
|---|---|
| Displacement | 12.0 L |
| Aspiration | Turbocharged/Aftercooled |
| Rated speed | 1800 rpm |
Filters for the Caterpillar 3412E
5Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P554005 | Lube Filter, Spin-On Full Flow | CATERPILLAR 1R0716, CATERPILLAR 1W2660, NAPA 1792, BALDWIN BF46150-O | FridayParts $41.73 |
| Fuel filter | P551311 | Fuel Filter, Spin-On Secondary | CATERPILLAR 1R0749, CATERPILLAR 3089679, BALDWIN BF7587, TAMROCK 019854051 | KuduParts $147.00 FridayParts $151.84 |
| Fuel / water separator | P551858 | Fuel Filter, Water Separator Spin-On | CATERPILLAR 1335673, CATERPILLAR 1700061, NAPA 3780, BALDWIN BF1265 | FridayParts $39.00 KuduParts $48.00 |
| Coolant filter | P554071 | Coolant Filter, Spin-On | CATERPILLAR 1112369, CATERPILLAR 1112370, NAPA 4071, WALGAHN-MOTORENTECHN 00811412 | FridayParts $397.60 |
| Coolant filter | P554073 | Coolant Filter, Spin-On | CATERPILLAR 0C2000, CATERPILLAR 0C2017, NAPA 4073, VERSATILE 00104040 | KuduParts $40.00 |
Same engine, other brands
1 brandThe Caterpillar 3412E in this set also powers 7 generator sets sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Solar Turbines | CENTAUR 40, CENTAUR 50, MARS 100, Mars 90, Mercury 50, TAURUS 70, Titan 130 |
Maintenance & consumables
for the Caterpillar 3412E| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air filter inner | 106-3973 | Amazon eBay $79.98 eBay $39.31 NAPA $116.29 FridayParts $62.16 | ||
| Fuel filter | Filter fuel | 3S3875 | eBay $49.99 | ||
| Oil filter | Filter oil | 1R1808 | Amazon eBay $141.00 eBay $59.99 NAPA $45.70 NAPA $45.70 KuduParts $80.00 FridayParts $81.99 | ||
| Battery | ×4 | 7L7872 | eBay | ||
| Belt | V-belt | 6N6798 | eBay $41.15 NAPA $40.08 | ||
| Coolant | 9S-8140 | Amazon eBay | |||
| Coolant filter | DEF Tank Inlet Screen | DZ114695 | Amazon eBay | ||
| Oil | CF-4 | — | 1000 hr | ||
| Spark plug | — |
Service intervals
40| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| System | Test | 1 hr | ToCI quarterly: exercise system under full load for 1 hour | |
| Sea Water Strainer | Clean | 50 hr | When required and every 3800 L (1000 US gal) of fuel or 50 service hours | |
| Zinc Rods | Inspect | 50 hr | When required and every 3800 L (1000 US gal) of fuel or 50 service hours; replace when deteriorated | |
| Engine oil (S-O-S oil sample) | Test | 125 hr | Severe service occurs at high loads, in high temperatures, and in dusty conditions | |
| Alternator Belt | Inspect | 250 hr | 12 mo | Inspect/adjust/replace; every 12 750 L (3375 US gal) of fuel or 250 h or yearly (8RG1-Up); every 19 000 L (5000 US gal) or 250 h or yearly (REA1-Up, 3JK1-Up, 7BL1-Up) |
| Battery Electrolyte Level | Check | 250 hr | 12 mo | Every 12 750 L (3375 US gal) of fuel or 250 h or yearly (8RG1-Up); every 19 000 L (5000 US gal) or 250 h or yearly (REA1-Up, 3JK1-Up, 7BL1-Up) |
| Coolant (S-O-S coolant analysis Level 1) | Test | 250 hr | Cat ELC - Every 250 Hours; also the recommended sampling interval for all conventional heavy-duty coolant/antifreeze and for commercial coolants that meet Cat EC-1 | |
| Cooling System Coolant Sample (Level 1) | Test | 250 hr | Every 250 service hours | |
| Cooling System Supplemental Coolant Additive (SCA) | Test | 250 hr | 12 mo | Test/Add; 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| Engine Air Cleaner Element | Clean | 250 hr | 12 mo | Clean/Replace; 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| Engine Crankcase Breather | Clean | 250 hr | 12 mo | 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| Engine Oil Sample | Other | 250 hr | 12 mo | Obtain S·O·S oil sample; 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| Engine Oil and Filter | Change | 250 hr | 12 mo | 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| Engine crankcase oil (S-O-S oil sample) | Test | 250 hr | Table 6 S-O-S Oil Sampling Interval; severe applications may require a more frequent oil sampling interval | |
| Fuel System Primary Filter | Clean | 250 hr | 12 mo | Clean/Replace; 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| Fuel System Secondary Filter | Replace | 250 hr | 12 mo | 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| Fuel Tank Water and Sediment | Drain | 250 hr | 12 mo | 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| Hoses and Clamps | Inspect | 250 hr | 12 mo | Inspect/Replace; 8RG1-Up: 12 750 L (3375 US gal) or 250 h or yearly; other S/N: 19 000 L (5000 US gal) or 250 h or yearly |
| SCA (Supplemental Coolant Additive) concentration | Test | 250 hr | Test the concentration of SCA or submit a coolant sample at 250 hour intervals or at PM Level 1 intervals; check at every oil change or every 250 hours, whichever occurs first | |
| Coolant (S-O-S coolant analysis Level 2) | Test | 500 hr | 12 mo | First service — For new systems, refilled systems, and converted systems that use Cat ELC or Cat DEAC; also every year; use the interval that occurs first |
| Cooling System Coolant Sample (Level 2) | Test | 500 hr | 12 mo | First service — Initial 500 hours for new systems, refilled systems, and converted systems |
| Aftercooler Core | Clean | 1000 hr | When required; also every 76 000 L (20 000 US gal) of fuel or 1000 service hours | |
| Heat Exchanger | Inspect | 1000 hr | When required; also every 76 000 L (20 000 US gal) of fuel or 1000 service hours | |
| Engine Speed/Timing Sensors | Check | 1500 hr | Check/Clean/Calibrate; 76 500 L (20 250 US gal) of fuel or 1500 h (8RG1-Up); 114 000 L (30 000 US gal) or 1500 h (REA1-Up, 3JK1-Up, 7BL1-Up) | |
| Engine Valve Lash | Adjust | 1500 hr | First service — Inspect/Adjust; 76 500 L (20 250 US gal) of fuel or 1500 h (8RG1-Up); 114 000 L (30 000 US gal) or 1500 h (other S/N) | |
| Engine Valve Rotators | Inspect | 1500 hr | 76 500 L (20 250 US gal) of fuel or 1500 h (8RG1-Up); 114 000 L (30 000 US gal) or 1500 h (other S/N) | |
| Alternator | Inspect | 3000 hr | 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (REA1-Up, 3JK1-Up, 7BL1-Up) | |
| Auxiliary Water Pump | Inspect | 3000 hr | 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (other S/N) | |
| Cooling System Coolant (DEAC) | Change | 3000 hr | 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (other S/N) | |
| Cooling System Water Temperature Regulator | Replace | 3000 hr | 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (other S/N) | |
| Crankshaft Vibration Damper | Inspect | 3000 hr | 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (other S/N) | |
| Engine Mounts | Inspect | 3000 hr | 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (other S/N) | |
| Fuel Injection Nozzles | Test | 3000 hr | Test/Exchange; 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (other S/N) | |
| Starting Motor | Inspect | 3000 hr | 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (other S/N) | |
| Turbocharger | Inspect | 3000 hr | 153 500 L (40 500 US gal) of fuel or 3000 h (8RG1-Up); 228 000 L (60 000 US gal) or 3000 h (other S/N) | |
| Cat ELC Extender addition (cooling system) | Other | 6000 hr | Treat the cooling system with Cat ELC Extender at 6000 hours or one half of the coolant service life | |
| Cooling System Coolant Extender (ELC) | Other | 6000 hr | 36 mo | Add; every 6000 service hours or 3 years |
| Overhaul Considerations | Other | 10000 hr | 570 000 L (150 000 US gal) of fuel or 10 000 h (8RG1-Up); 760 000 L (200 000 US gal) or 10 000 h (other S/N) | |
| Coolant (Cat ELC) | Change | 12000 hr | 12000 service hours or six years; use the interval that occurs first | |
| Cooling System Coolant (ELC) | Change | 12000 hr | 72 mo | Every 12 000 service hours or 6 years |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
52| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Clearance | Coolant level below bottom of filler pipe (engines without recovery tank) | within 13 | mm | 0.5 inch |
| Clearance | Crankshaft end play | .178 to .635 | mm (0.0070 to 0.0250 inch) | measured with dial indicator |
| Clearance | Crankshaft end play after assembly | 0.178 to 0.635 | mm (0.0070 to 0.0250 inch) | after assembly |
| Clearance | End play at heat sink after assembly | 0.076 to 0.635 | mm (0.0030 to 0.0250 inch) | after assembly |
| Clearance | Gap at 3, 6, 9, 12 o'clock positions | 0.03 to 0.13 | mm (0.001 to 0.005 inch) | between |
| Clearance | Gap between generator and flywheel housing at locations (E), (F), (G), (H) | >0.03 and <0.13 | mm (0.001 inch to 0.005 inch) | more than 0.03 mm and less than 0.13 mm |
| Clearance | Generator forward offset from midpoint of end play | + 0.50 | mm (+ 0.0200 inch) | while generator supported by crane |
| Clearance | Rotor end play | 3.81 to 7.62 | mm (.150 to .300 inch) | approximately |
| Clearance | Shim thickness divisor for number of shims | 0.8 | mm (0.03 inch) | divide Letter L by this value |
| Clearance | Support deflection during bolt tightening | 0.13 | mm (0.005 inch) | maximum allowed movement |
| Clearance | Water pump leakage considered normal as engine cools | small amount | water pump seal is lubricated by coolant in the cooling system | |
| Other | Alternator belt deflection | 13 to 19 | mm | 110 N (25 lb) of force applied midway between the pulleys; 0.50 to 0.75 inch |
| Other | Caterpillar Fast Acting Cooling System Cleaner concentration | 0.5 | L per 15 L | 1 pint per 4 US gal of cooling system capacity |
| Other | Chlorine content limit for heat exchanger cleaning water | more than 300 | ppm | water containing more than 300 ppm of chlorine should not be used |
| Other | Cooling system fill rate | no faster than 19 | L per minute | 5 US gal per minute to avoid air locks |
| Other | Exercise under full load | 1 | hour | ToCI quarterly |
| Other | Full load test duration | 4 | hours | Once per year |
| Other | Load bank data recording interval | 15 | minutes | During load bank test |
| Other | Load bank test load level | 80 | % of generator nameplate capacity | 4-hour resistive load bank test |
| Other | Load bank test profile | 2 hours at 50%, 1 hour at 75%, 1 hour at 100% | Annual four (4) hour load bank test | |
| Other | Paper air cleaner element reuse limit | up to six | times | replace at least one time per year regardless of number of cleanings |
| Other | Plate type heat exchanger cleaner concentration | maximum 4 | percent by weight | cleaning solution temperature less than 60°C (140°F) |
| Other | Rating condition (diesel 7 L and higher) | 99 kPa (29.31 in Hg) dry barometer, 25°C (77°F) | SAE J1995 inlet air standard | |
| Other | Rating condition (diesel up to 6.6 L) | 100 kPa (29.5 in Hg) total barometric pressure, 1 kPa (.295 in Hg) vapor pressure, 25°C (77°F) | ISO/TR14396 inlet air standard | |
| Other | Rating condition (gas) | 100 kPa (29.61 in Hg) and 25°C (77°F) | SAE J1349 standard | |
| Other | Solvent contact time with heat exchanger gaskets | not more than half an hour | natural rubber, butyl rubber and EPDM gaskets swell in these solvents | |
| Other | Supplemental Coolant Additive (SCA) concentration, coolant and SCA | do not exceed six | percent | |
| Other | Supplemental Coolant Additive (SCA) concentration, water and SCA | do not exceed eight | percent | |
| Pressure | Auxiliary water pump differential pressure requiring component inspection | more than 103 | kPa | 15 psi |
| Pressure | Maximum air pressure at nozzle for cleaning | less than 205 | kPa | 30 psi |
| Pressure | Maximum air pressure for cleaning purposes | 205 | kPa (30 psi) | must be below |
| Pressure | Maximum pressure of filtered, dry air for cleaning paper air cleaner elements | 207 | kPa | 30 psi |
| Pressure | Maximum water pressure for cleaning purposes | 275 | kPa (40 psi) | must be below |
| Pressure | Maximum water pressure for rinsing air cleaner element | 275 | kPa | 40 psi; do not use a spray nozzle |
| Pressure | Unit injector fuel injection pressure | 1240 | bar (18 000 psi) | |
| Speed | Engine speed for purging air from engine block cavities during coolant fill | 1500 | rpm | run one minute at 1500 rpm; low idle to increase |
| Temperature | Coolant temperature while cleaning heavily plugged systems | minimum 82 | °C | 180°F; run at low idle minimum 90 minutes |
| Temperature | Coolant temperature while cleaning with Fast Acting Cooling System Cleaner | minimum 82 | °C | 180°F; run at low idle minimum 30 minutes |
| Temperature | Cooling system flush temperature (ELC change) | 49 to 66 | °C | 120 to 150°F |
| Temperature | Ether cylinder storage temperature limit | 49 | °C (120 °F) | do not store in direct sunlight or at temperatures above |
| Temperature | Hydrosolv liquid cleaner use temperature | up to 93 | °C | 200°F; two to five percent concentration |
| Temperature | Oven drying temperature for paper air cleaner elements | maximum 82 | °C | 160°F |
| Temperature | Paper air cleaner element wash water temperature | maximum 60 | °C | 140°F; soak element six hours |
| Torque | Air cleaner service indicator | 2 | N·m | 18 lb in |
| Torque | Bolts (10) | 100 | N-m (75 lb ft) | Tighten in pairs at 180 degree intervals in three stages |
| Torque | Bolts (7) for shim pack and plate assembly | 525 + 45 | N-m (390 + 30 lb ft) | Tighten bolts (7) |
| Torque | Coupling plate assembly bolts (5) | 525 + 25 | N-m (390 + 20 lb ft) | Tighten in 180 degree intervals in three stages |
| Torque | Fan mounting bolts (11) | 200 | N-m (150 Ib ft) | Tighten in pairs at 180 degree intervals in three stages |
| Torque | Fuel line nuts | 40 ± 7 | N·m | 30 ± 5 lb ft |
| Torque | Fuel system primary filter housing bolt | 24 ± 4 | N·m | 18 ± 3 lb ft |
| Torque | Generator mounting bolts (half of standard torque) | 450 | N-m (332 lb ft) | one half of standard torque |
| Torque | Generator support bolts (half of final torque) | 450 | N-m (332 Ib ft) | half of final torque |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | Cat DEAC | Diesel; 3,000 Service Hours or Three Years; annual S·O·SSM Level 2 coolant sampling and analysis | |||
| Coolant | Cat DEAC (Diesel Engine Antifreeze/Coolant) | Acceptable coolant; commercial heavy-duty antifreeze/coolant must meet ASTM D4985 or ASTM D6210 | Conventional heavy-duty coolant/antifreeze. Caterpillar recommends a 1:1 mixture of water and glycol. Do not use a commercial coolant/antifreeze that only meets the ASTM D3306 specification. Do not use Cat SCA at the initial fill when Cat DEAC is used. | ||
| Coolant | Cat ELC | Diesel; 12,000 Service Hours or Six Years; add Cat ELC Extender at 6,000 service hours or one half of service life; annual S·O·SSM Level 2 coolant sampling and analysis | |||
| Coolant | Cat ELC (Extended Life Coolant) | Caterpillar EC-1 specification (preferred); also meets ASTM D4985, ASTM D6210, and ASTM D3306 | Service life of 12000 service hours or six years. Premixed ELC provides freeze protection to -37 C (-34 F); ELC Concentrate can be used to lower the freezing point to -52 C (-62 F). An Extender is the only additional maintenance needed at 6000 service hours or one half of the ELC service life. Cat ELC cooling systems can withstand contamination to a maximum of ten percent of conventional heavy-duty coolant/antifreeze and/or SCA. | ||
| Coolant | Cat ELC Extender | Add every 6000 service hours or 3 years according to requirements for cooling system capacity | |||
| Coolant | Cat NGEC | Natural Gas; 16,000 Service Hours or Three Years; use interval that occurs first | |||
| Coolant | Cat SCA (Supplemental Coolant Additive) with water | SCA concentration in a cooling system that uses SCA and water should be six to eight percent by volume; do not exceed the eight percent maximum concentration. If Cat SCA is not used, the commercial SCA must provide a minimum of 2400 mg/L or 2400 ppm (140 grains/US gal) of nitrites in the final coolant mixture when used with water, and a minimum of 1400 mg/L or 1400 ppm (82 grains/US gal) with heavy-duty coolant/antifreeze. | |||
| Coolant | Glycol (ethylene glycol / propylene glycol) | Propylene glycol coolant must meet ASTM D6210-04 | Ethylene glycol: 50 percent = freeze protection -37 C (-34 F), boil protection 106 C (223 F); 60 percent = -52 C (-62 F), 111 C (232 F). Propylene glycol: 50 percent = -32 C (-26 F), 106 C (223 F). Do not use propylene glycol in concentrations that exceed 50 percent; do not use ethylene glycol in concentrations that exceed 60 percent. All Caterpillar diesel engines equipped with air-to-air aftercooling (ATAAC) require a minimum of 30 percent glycol. | ||
| Engine oil | EPA 2D 89.330-96 (fuel reference, Diesel <6.6 L, density 0,845-0,850 kg/L a 15 °C) | Reference condition only, not a lubricant recommendation | |||
| Engine oil | Cat DEO (Diesel Engine Oil) 10W-30 and 15W-40 | Cat ECF-1 (exceeds); API CI-4, API CI-4 PLUS, API CH-4, API CG-4, API CF (Cat DEO SAE 15W-40) | Caterpillar oils are used to fill diesel engines at the factory. Non-Caterpillar commercial oils are second choice oils. Do not use API CF-4 oils in Caterpillar diesel engines. Do not use single grade API CF oils or multigrade API CF oils in 3500 Series, C175 Series and smaller DI diesel engines. | ||
| Engine oil | Cat NGEO | Natural Gas | |||
| Engine oil | Commercial oils (DI engines) | Cat ECF-1 required; API CG-4 multigrade acceptable; API CH-4, API CI-4 and API CI-4 PLUS acceptable only if the requirements of Cat ECF-1 are met; do not use API CF-4 oils | Minimum TBN must be 10 times the fuel sulfur level (ASTM D2896); minimum TBN of the oil is 5 regardless of a low fuel sulfur level. API CG-4 oils: do not exceed the standard oil drain interval. | ||
| Engine oil | Commercial oils (PC engines) | Cat ECF-1; API CH-4, API CI-4, API CI-4 PLUS (if Cat ECF-1 requirements met); API CG-4 multigrade; API CF-4 multigrade; API CF | Minimum TBN of the oil that is used in PC engines must be 20 times the fuel sulfur level; minimum TBN of new oil is five. Change the oil when the TBN deteriorates to 50 percent of the original TBN. | ||
| Engine oil | Re-refined base stock oils | Acceptable if they meet the performance requirements specified by Caterpillar; filtering is inadequate for producing high quality re-refined base stock oils. | |||
| Engine oil | Synthetic base stock oils | Acceptable if they meet the performance requirements specified for the engine compartment. Caterpillar does not recommend the automatic extension of oil drain intervals for any type of oil. | |||
| Engine oil | meeting manufacturer's specs | Add crankcase oil (grade meeting manufacturer's specs) to correct level (SCI) | |||
| Engine oil | Cat Arctic DEO SYN SAE 0W-30 | -40°C to 30°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | SAE 0W-20 | -40°C to 10°C | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) | ||
| Engine oil | SAE 0W-30 | -40°C to 30°C | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) | ||
| Engine oil | SAE 0W-40 | -40°C to 40°C | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) | ||
| Engine oil | Cat DEO SYN SAE 5W-40 | -30°C to 50°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | SAE 5W-30 | -30°C to 30°C | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) | ||
| Engine oil | SAE 5W-40 | -30°C to 50°C | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) | ||
| Engine oil | Cat DEO SAE 10W-30 | -18°C to 40°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | SAE 10W-30 | -18°C to 40°C | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines); SAE 10W-30 is the preferred viscosity grade for the 3116, 3126, C7, C-9 and C9 diesel engines between -18 C (0 F) and 40 C (104 F) | ||
| Engine oil | SAE 10W-40 | -18°C to 50°C | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) | ||
| Engine oil | Cat DEO SAE 15W-40 | -9°C to 50°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | SAE 15W-40 | -9°C to 50°C | Table 1 Lubricant Viscosities for Ambient Temperatures (DI diesel engines) | ||
| Engine oil | Cat SAEO SAE 30 | API CF-4 category | 0°C to 40°C | Table 2 - 3116 and 3126 Marine Engines with mechanical unit injection; factory fill has API CF-4 category and viscosity grade of SAE 30 | |
| Engine oil | SAE 30 | 0°C to 40°C | Table 3 Lubricant Viscosities for Ambient Temperatures - PC engines only |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Alignment Of Electric Sets With Supports At The Flywheel Housing / Installation Of A New Generator Or Flexible Plates adjustment
Tools: crane, dial indicator, shims, torque wrench
- Loosen all bolts connecting base to foundation; loosen all bolts fastening engine supports and generator supports to base.
- Ensure enough clearance between bolts and bolt holes in base, engine supports, generator supports at all locations.
- Check clearance between base and foundation at all mounting locations; use shims to prevent deflection; tighten base-to-foundation bolts to final torque.
- While generator supported by crane, loosen all bolts (2) fastening generator to flywheel housing; tighten alternate bolts to final torque; check clearance between base and engine and generator support
- Tighten all bolts fastening engine supports and generator supports to base to half of final torque; loosen all bolts (2); measure gap between generator and flywheel housing; ensure bolts centered in c
- Gaps at (E), (F), (G), (H) should be more than 0.03 mm (0.001 inch) and less than 0.13 mm (0.005 inch); adjust shims or move rear of generator right or left.
- After shim correction, tighten generator support bolts to half of final torque 450 N-m (332 Ib ft); check gaps; repeat until 0.13 mm (0.005 inch) or less; begin with Step 5.
- Install dial indicator on base with tip next to support mounting bolt (4); put tip on support (3); check while tightening bolt to final torque; if indicator moves more than 0.13 mm (0.005 inch), insta
Alignment Of Electric Sets Without Supports At The Flywheel Housing adjustment
Tools: shims, torque wrench
- Loosen all bolts connecting base to foundation; loosen all bolts fastening generator supports and engine supports to base.
- Ensure clearance between bolts and bolt holes in base, engine supports, generator supports at all locations.
- Check clearance between base and foundation at all mounting locations; use shims to prevent base deflection; tighten base-to-foundation bolts to final torque.
- Check clearance between base and engine, base and engine supports, base and generator supports over entire length; use shims to prevent support deflection; tighten all mounting bolts to final torque.
Alternator Belt - Inspect/Adjust/Replace adjustment
⚠ Replace belts for multiple groove pulleys in matched sets.
Tools: Belt tension gauge (110 N / 25 lb force)
- Remove the belt guard.
- Loosen mounting bolt (2) and adjusting nuts (1).
- Turn adjusting nuts to increase or decrease belt tension.
- Check deflection is 13 to 19 mm with 110 N applied midway.
- Tighten the adjusting nuts; tighten the mounting bolt.
- Reinstall the belt guard.
- Check adjustment again after 30 minutes at rated rpm if new belts.
Rechecking The Alignment adjustment
Tools: torque wrench, shims
- Loosen the sixteen close coupled adapter bolts (2); visually ensure they are centered in clearance holes.
- Check gaps at 3, 6, 9, and 12 o'clock positions; use 2, 4, 8, and 10 o'clock if 12 and 6 are inaccessible.
- If gaps are between 0.03 mm (0.001 inch) and 0.13 mm (0.005 inch), tighten all bolts; alignment check complete. If not, loosen bolts fastening generator to base frame; adjust shims; move rear of gener
- After adjustment, tighten generator mounting bolts to one half of standard torque 450 N-m (332 lb ft); repeat procedure starting with Step 1.
Determining the cause of a plugged fuel filter (ice or wax) diagnostic
- Remove the fuel filters.
- Cut the fuel filters open.
- Inspect the fuel filter before the filter warms. The inspection will show that the filter is filled with particles of either ice or wax.
Load Bank Test diagnostic
- Warm Up
- Start
- 15 Min
- 30 Min
- 45 Min
- 1 Hour
- Cool Down
Installation Of The Generator For Generator Sets That Are Equipped With A 3500 Engine installation
⚠ Damage to engine and generator can result if electric set is operated with a plate assembly that does not have proper clearance.
⚠ If N or O is less than initial A, disassemble and check coupling plate for bowing; replace if bowed.
Tools: dial indicator, straight edge, magnetic bases, crane, torque wrench, 17 5N-4478 Plates
- Ensure generator is disengaged from engine; clean generator support and base contact surfaces; remove protective material from flywheel pilot bearing bore and coupling contact surface.
- Remove two engine side covers; rotate engine until no. 1 crankshaft throw is perpendicular; measure crankshaft end play with dial indicator; record as A and divide by two for B.
- With crankshaft at extreme forward position, measure distance from straight edge to flywheel housing mounting surface (C) and flywheel pilot surface (D); subtract D from C for E.
- Remove coupling bolts and washers; remove plates, shims, and exhaust fan; lift rotor; locate rotor so air gap equal; move rotor to extreme rear.
- Place dial indicator on vertical surface of heat sink at rear of rotor shaft; measure rotor end play (approximately 3.81 to 7.62 mm); record F and divide by two for G.
- Move rotor to extreme rear; position straight edge across mounting ring diameter; measure distance to mounting ring surface (H) and hub mounting surface (I); subtract H from I for J.
- Bolt a standard set of 17 5N-4478 Plates together; measure thickness in two locations along contour; average as K.
- Determine number of shims: subtract B, E, G, K from J for L; divide L by 0.8 mm (0.03 inch) for M; round up.
- Put coupling plate in flywheel bore; check clearance between coupling plate outside diameter and flywheel bore inside diameter.
- Install coupling plate assembly, bolts (6) and calculated shims; tighten bolts (5) in 180 degree intervals in three stages to 525 + 25 N-m (390 + 20 lb ft).
- Install guide bolts in flywheel; put generator on engine; install bolts (10); tighten to 100 N-m (75 lb ft) in pairs at 180 degree intervals in three stages.
- While crane supports generator, place dial indicator on heat sink vertical surface; push generator forward within + 0.50 mm (+ 0.0200 inch) of midpoint of end play.
- Install fan mounting bolts (11) into flywheel; tighten to 200 N-m (150 Ib ft) in pairs at 180 degree intervals in three stages.
- Place dial indicators on no. 1 crankshaft throw and heat sink; push crankshaft forward; check crankshaft end play 0.178 to 0.635 mm and heat sink end play 0.076 to 0.635 mm; record N and O.
- If N or O is less than initial A, disassemble; check coupling plate for bowing; replace if bowed; check calculations; install generator and repeat steps 13 and 15.
Installation Of The Generator For Generator Sets That Are Not Equipped With A 3500 Engine installation
⚠ Damage to engine and generator can result if electric set is operated with a plate assembly that does not have proper clearance.
Tools: dial indicator, indicator assembly, bar, torque wrench, guide bolt, crane
- Remove dirt, burrs, paint from generator support and base contact surfaces; remove protective material from flywheel pilot bearing bore and coupling contact surface.
- Remove timing pointer cover; install indicator assembly on front of engine; tip contacts crankshaft pulley face.
- Position plate assembly in flywheel bore; check clearance between plate outside diameter and bore inside diameter.
- Install full shim pack and plate assembly on generator with bolts; tighten bolts to 525 + 45 N-m (390 + 30 lb ft).
- Install guide bolt in flywheel; put generator on engine; install bolts (9) and (10); tighten but do not bend locks under bolts (8).
- Use dial indicator to check crankshaft end play; if reading differs from initial, remove generator and enough shims to get original end play.
- Install generator again and check crankshaft end play; after correct shims, bend locks under bolts (8).
Aftercooler Core - Clean/Test maintenance
⚠ Do not use a high concentration of caustic cleaner to clean the core.
⚠ Maximum air pressure at the nozzle must be less than 205 kPa (30 psi).
Tools: Pressure air supply (maximum 205 kPa / 30 psi at nozzle)
- Remove the core. Refer to the Service Manual for the procedure.
- Turn the aftercooler core upside-down in order to remove debris.
- Back flush the core with cleaner (1U-5490 or 174-6854 Hydrosolv).
- Steam clean the core to remove residue; flush the fins.
- Wash the core with hot, soapy water; rinse thoroughly with clean water.
- Dry the core with compressed air in the reverse direction of normal flow.
- Inspect the core for cleanliness; pressure test; repair if necessary.
- Install the core. Refer to the Service Manual for the procedure.
Automatic Transfer Switch Semi-Annual Service maintenance
- Verify proper operation of exerciser clock; adjust if necessary.
- Provide visual inspection of all contacts and connection points.
- Perform building load test if practical and inspect for proper transfer and re-transfer.
- Verify operation of all control lamps.
Battery Electrolyte Level - Check maintenance
⚠ All lead-acid batteries contain sulfuric acid; wear face shield and protective clothing.
Tools: 245-5829 Coolant Battery Tester Refractometer
- Remove the filler caps; maintain the electrolyte to the FULL mark.
- Add distilled water if necessary; avoid artificially softened water.
- Check electrolyte condition with the 245-5829 Coolant Battery Tester Refractometer.
- Clean battery case with baking soda/water or ammonia/water solution; rinse.
- Clean terminals and cable clamps with fine grade sandpaper.
- Coat clamps and terminals with 5N-5561 Silicone Lubricant, petroleum jelly or MPGM.
- Clean the battery case; keep the batteries clean.
Battery and Battery Charger System Semi-Annual Service maintenance
- Clean all battery terminals; verify integrity of cables and connectors.
- Load-test battery.
- Measure specific gravity of each battery cell.
- Inspect electrolyte level and add fluid if necessary.
- Verify proper operation and float voltage of external battery charger.
- Verify and record output of engine alternator.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Voltage reconnection
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 480V | 3 | 12 lead reconnectable | Generator end is 12 lead reconnectable: Yes |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
How many kW is the Caterpillar 3412?
The Caterpillar 3412 is rated 500 kW standby (500.0 kVA).
What engine does the Caterpillar 3412 use?
The Caterpillar 3412 is powered by the Caterpillar 3412E engine.
What fuel does the Caterpillar 3412 use?
The Caterpillar 3412 runs on diesel.
What is the coolant capacity of the Caterpillar 3412?
The Caterpillar 3412 cooling system holds 750 liters (198.1 US gallons) for the engine, per the manufacturer specification sheet.
What is the prime power rating of the Caterpillar 3412?
The Caterpillar 3412 is rated 455 kW prime (455 kVA), against 500 kW standby.
How much does the Caterpillar 3412 weigh?
The Caterpillar 3412 has a dry weight of 2141 kg (4720 lb).
What voltage does the Caterpillar 3412 produce?
The Caterpillar 3412 is offered in 480 V, 3-phase.
What battery does the Caterpillar 3412 use?
The Caterpillar 3412 uses 4 batteryies, 24 V each, group 8D, per the manufacturer specification sheet.
What alternator does the Caterpillar 3412 use?
The Caterpillar 3412 uses a SR4B alternator. It has 4 poles.
What oil filter fits the Caterpillar 3412?
The Caterpillar 3412 uses oil filter part number 1R1808. Equivalents: BALDWIN B7299, NAPA 7792, CATERPILLAR 1R808.
Which fuel filter part number does the Caterpillar 3412 take?
The Caterpillar 3412 uses fuel filter part number 3S3875.
What air filter fits the Caterpillar 3412?
The Caterpillar 3412 uses air filter part number 106-3973.
Troubleshooting
1Fault codes
| Code | Meaning |
|---|---|
| null | Increased coolant temperature |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Repair guides
7- Cooling System Coolant Level - Check
- Engine Valve Rotators - Inspect
- Fuel System Primary Filter - Clean/Replace
- Generator Check list
- Load Bank Test
- Turbocharger - Clean and Inspect
- Zinc Rods - Inspect/Replace
Step-by-step procedures compiled from the Caterpillar service manual for this model.
Parts
245| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 101-2844 | 1 gallon (3.8L) | 1 gallon (3.8L) | Fluid | Amazon eBay |
| 102-2828 | Filter oil | 1 | Oil filter | eBay $15.00 |
| 102-9720 | Cleaning Kit (detergent and oil for AIRSEP air cleaner elements) | Air filter | eBay | |
| 106-3973 | Air filter inner | 1 | Air filter | Amazon eBay $79.98 eBay $39.31 NAPA $116.29 FridayParts $62.16 |
| 10R-9557 | Oil Filter | 1 | Oil filter | Amazon eBay |
| 10R9951 | Head Gaskets | 1 | Gasket | Amazon eBay |
| 111-2369 | Maintenance Element | 1 | Coolant filter | Amazon eBay $26.35 NAPA $21.06 |
| 1113794 | COOLANT LEVEL SENSOR | 1 | Sensor | eBay $189.06 |
| 113-8432 | Front seal | Seal | Amazon eBay $128.48 | |
| 1167846 | DIGITAL VOLTAGE REGULATOR | 1 | Avr | eBay |
| 119-5152 | Cat Engine Oil (quart bottle) | quart bottle | Fluid | Amazon eBay |
| 1282922CAT | Water Pump Gasket Set - 0.4 lbs/ 0.18 kgs, 5" Length, 27mm Width, 27mm Depth, 11 Application: 3400 | 1 | Gasket | Amazon eBay |
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| 135-4925 | Water pump | Pump | eBay $379.99 FridayParts $465.31 | |
| 1354925CAT | New Water Pump - 3406E | 1 | Pump | Amazon eBay |
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| 1422329CAT | Drainback Seal - 3406E | 1 | Seal | Amazon eBay |
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| 164-4599 | V-belt | 1 | Belt | eBay $26.20 NAPA $55.69 |
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| 1744947 | Aftercooler and Lines Gaskets | 1 | Gasket | Amazon eBay |
| 175-7546 | Oil Filter Cutter | 1 | Oil filter | Amazon eBay $75.00 |
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| 1R0726 | Filter oil | Oil filter | eBay $39.99 KuduParts $17.00 FridayParts $19.48 | |
| 1R0741 | Filter hydraulic | Hydraulic filter | eBay $22.00 NAPA $25.37 | |
| 1R0749 | Filter fuel | 1 case (12 x 1 quart) | Fuel filter | Amazon Amazon eBay $135.88 eBay $135.88 NAPA $28.51 NAPA $28.51 KuduParts $17.00 FridayParts $47.50 |
| 1R0750 | Filter fuel | Fuel filter | Amazon eBay $33.80 eBay $33.80 NAPA $21.82 NAPA $21.82 KuduParts $17.00 FridayParts $29.50 | |
| 1R0751 | Fuel Filter (secondary) | Fuel filter | Amazon Amazon eBay $20.19 eBay $48.88 NAPA $22.53 NAPA $22.53 KuduParts $36.00 FridayParts $37.23 | |
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| 1R1808 | Filter oil | Oil filter | Amazon eBay $141.00 eBay $59.99 NAPA $45.70 NAPA $45.70 KuduParts $80.00 FridayParts $81.99 | |
| 1U-5490 | Hydrosolv 4165 liquid cleaner, 19 L (5 US gallon) | Fluid | Amazon eBay | |
| 1U-5492 | Hydrosolv 100 Liquid Cleaner, 19 L (5 US gal) | Fluid | eBay | |
| 1U-5718 | Vacuum Pump | 1 | Pump | Amazon eBay $87.99 |
| 1U-8804 | Hydrosolv 100 Liquid Cleaner, 4 L (1 US gal) | Fluid | eBay | |
| 1U-8812 | Hydrosolv 4165 Liquid Cleaner, 4 L (1 US gal) | Fluid | eBay | |
| 2161252CAT | Single Cylinder Head Gasket Set - 3406/ 3406E | 1 | Gasket | Amazon eBay |
| 222-5152 | Water pump repair kit | Pump | eBay $239.99 | |
| 2245122CAT | Cylinder Head Gasket - 3406E | 1 | Gasket | Amazon eBay |
| 2322507 | Manifold Gaskets | 1 | Gasket | Amazon eBay |
| 2322521 | Turbocharger Gaskets | 1 | Gasket | Amazon eBay |
| 2322522 | Reman Injectors | 1 | Injector | Amazon eBay |
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| 247-7133 | Thermostat | Thermostat | Amazon eBay $107.00 eBay $41.00 FridayParts $27.50 | |
| 248-5513 | Thermostat | Thermostat | Amazon eBay $39.95 eBay $43.00 FridayParts $30.31 SinoCMP $59.00 | |
| 2486744CAT | Single Cylinder Head Gasket Set - 5.6 lbs/ 2.54 kgs, For Use On C-9 MFF; 3406E 1LW; 3406E 1mm, 3406E 2WS; 3406E 5DS; 3406E 6TS | 1 | Gasket | Amazon eBay |
| 296-8325 | Crankcase Ventilation (CV) Filter | Ocv filter cartridge | Amazon eBay $48.30 | |
| 326-1641 | Axial seal FWS | 1 | Fuel filter | Amazon eBay $23.00 NAPA $58.84 |
| 326-1642 | Filter water separator | 1 | Fuel filter | eBay $38.00 NAPA $53.06 |
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| 3N6668 | FLEXIBLE FUEL LINES | 1 | Hose | eBay |
| 3N7442 | LOW WATER TEMPERATURE SWITCH | 1 | Sensor | eBay $67.00 |
| 3N8449 | IMPELLER | 1 | Impeller | Amazon eBay $5000.00 |
| 3S3875 | Filter fuel | Fuel filter | eBay $49.99 | |
| 3T8705 | Glow plug | Glow plug | eBay $13.99 FridayParts $19.56 | |
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| 4N0015 | Air filter outer | Air filter | eBay $109.99 NAPA $157.85 KuduParts $114.00 FridayParts $118.99 | |
| 4N1061 | ELECTRIC STARTING MOTOR LH 24V | 1 | Starter | eBay |
| 4N1151 | Gasket oil pan | Gasket | eBay $15.24 | |
| 4P-7610 | Magnetic Pickup Group (engine speed/timing sensor in flywheel housing) | Sensor | Amazon eBay eBay | |
| 4W3864 | Water pump seal | Seal | eBay $9.27 | |
| 55.3 | Air cleaner, single-stage, dry type | 1 | Air filter | buy |
| 5N-5561 | Silicone Lubricant | Fluid | Amazon eBay | |
| 5N2902 | OIL SEAL | 1 | Seal | Amazon Amazon eBay $17.50 eBay $17.50 |
| 5N5692 | CHARGING ALTERNATOR 24V 45 AMP | 1 | Alternator | eBay $327.36 FridayParts $237.90 |
| 5N6055 | M-SEAL | 1 | Seal | Amazon eBay $99.99 |
| 6N6798 | V-belt | Belt | eBay $41.15 NAPA $40.08 | |
| 703613 | PUMP ASSY | 1 | Pump | Amazon eBay |
| 7C7691 | Turbocharger | Turbocharger | eBay $525.35 FridayParts $599.00 | |
| 7E4254 | CLEANER GP - AIR | 1 | Air filter | eBay |
| 8H7204 | PRIMARY FUEL FILTER | 1 | Fuel filter | eBay $22.95 FridayParts $40.77 |
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| 8S-2245 | Injection Cleaning Tool Group | Injector | eBay | |
| 8T-5571 | Hydrosolv 100 - 208 L (55 US gallon) | Fluid | eBay | |
| 8T-7570 | Hydrosolv 4165 - 208 L (55 US gallon) | Fluid | eBay | |
| 9G8010 | Switch | Sensor | eBay $39.00 FridayParts $16.90 | |
| 9L6639 | V-belt | Belt | eBay $19.99 NAPA $37.22 | |
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| 9U-7227 | Injector Height Gauge | 1 | Injector height gauge | Amazon eBay $138.09 FridayParts $32.35 SinoCMP $85.00 |
| DM-3E3305 | GASKET SET, WP OH 3412 | Gasket | Amazon eBay | |
| DM-6I3890 | WATER PUMP 3406E | Pump | Amazon eBay | |
| DM-8C4402 | GASKET SET, FUEL SYSTEM 3412 | Gasket | Amazon eBay | |
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| IMP0026 | IMPELLER | 1 | Impeller | Amazon eBay $825.83 |
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| M-1252107 | Fuel System Set | 1 | Gasket | Amazon eBay |
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| M-1425867 | Front Crankshaft Seal | 1 | Seal | Amazon eBay $62.99 |
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| PL1697 | PRIMARY FUEL FILTER | 1 | Fuel filter | eBay |
| R-10R0955 | Fuel Injector - Reman | 6 | Injector | Amazon eBay |
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| 138-8440 | Component cleaner | Service part / kit | Amazon eBay | |
| 1440725 | Connecting rod | Service part / kit | Amazon eBay $630.00 | |
| 163-1128 | Kit with Liquid | Service part / kit | Amazon eBay | |
| 163-1129 | Kit with Element | Service part / kit | Amazon eBay | |
| 169-8373 | Fluid Sampling Bottle | 1 | Service part / kit | Amazon eBay $29.99 |
| 16CM43-0001 | Cylinder Head Assembly | 1 | Service part / kit | Amazon eBay |
| 16CM43-0002 | Piston Assembly | 1 | Service part / kit | Amazon eBay |
| 16CM43-0003 | Connecting Rod Assembly | 1 | Service part / kit | Amazon eBay |
| 16CM43-0004 | Crankshaft Assembly | 1 | Service part / kit | Amazon eBay |
| 16CM43-0005 | Valve Train Assembly | 1 | Service part / kit | Amazon eBay |
| 174-6854 | Hydrosolv 100 liquid cleaner, 19 L (5 US gallon) | Service part / kit | Amazon eBay NAPA $10.64 | |
| 1743191 | Reman Cylinder Heads | 1 | Service part / kit | Amazon eBay |
| 1765749CAT | Piston Ring - Intermediate, 3406E | 6 | Service part / kit | Amazon eBay |
| 177-9778 | Base | 1 | Service part / kit | Amazon eBay $174.00 KuduParts $109.00 FridayParts $109.99 |
| 1899771CAT | Oil Control Piston Ring - Intermediate, 3406E/ C15 | 6 | Service part / kit | Amazon eBay |
| 195-1068 | Base | 1 | Service part / kit | Amazon eBay $49.99 |
| 1U-8760 | Chain Wrench | 1 | Service part / kit | Amazon eBay |
| 206-5756 | PrimeTime Prime Only Configuration Kit | Kit | Service part / kit | Amazon eBay |
| 249-0437 | Oxidation Catalyst Assembly - Round | 1 | Service part / kit | Amazon eBay |
| 256-0326 | Oxidation Catalyst Assembly - Round | Service part / kit | Amazon eBay | |
| 304-7755 | Cat Regeneration System | Service part / kit | Amazon eBay | |
| 305-2389 | Wire Brush | Service part / kit | Amazon eBay | |
| 4C-9301 | Coolant Conditioner Test Kit | 1 | Service part / kit | Amazon eBay $30.00 |
| 4P7610 | PICK UP GP - MAGNETIC | 1 | Service part / kit | Amazon eBay eBay |
| 5P-3413 | Pipe Sealant | 1 | Service part / kit | eBay $12.37 |
| 6N8878 | FUEL PRESSURE GAUGE | 1 | Service part / kit | Amazon eBay |
| 703493 | SHAFT | 1 | Service part / kit | Amazon eBay |
| 7C3874 | BATTERY CHARGER 10 AMP | 1 | Service part / kit | eBay |
| 7E6248 | HEATER GP - JACKET WATER | 1 | Service part / kit | eBay |
| 7L7872 | 24 VOLT BATTERY SET | 1 | Service part / kit | eBay |
| 7N3229 | Connecting rod | Service part / kit | Amazon eBay $176.83 | |
| 8N1728 | Connecting rod | Service part / kit | Amazon eBay $249.99 | |
| 8T-5296 | Coolant Conditioner Test Kit | Service part / kit | Amazon eBay eBay | |
| 8T1589 | Maintenance Charge | Service part / kit | Amazon Amazon eBay $29.76 eBay | |
| 8T9190 | Refill Charge | Service part / kit | Amazon eBay | |
| 9S-3263 | Thread lock | 1 | Service part / kit | eBay $30.78 |
| 9S-4030 | Thread lock | Service part / kit | eBay | |
| 9Y6054 | Connecting rod | Service part / kit | Amazon eBay $299.99 | |
| DZ111166 | (3402) (3404) (3408) (3409) (974G) | 1 | Service part / kit | Amazon eBay |
| DZ114695 | DEF TANK INLET SCREEN | 1 | Service part / kit | Amazon eBay |
| LEHW0155-01 | CATERPILLAR® ENGINE SPECIFICATIONS | Service part / kit | Amazon eBay | |
| M-2477133 | 1 Regulator - 190ºC | AR | Service part / kit | Amazon eBay $59.00 |
| M-2485513 | 1 Regulator - 180ºC | 1 | Service part / kit | Amazon eBay $44.76 |
| M-3327309 | Camshaft | Service part / kit | Amazon eBay | |
| MRS3406E2CAT | Ring Set - 3406E | 6 | Service part / kit | Amazon eBay |
| PA5399 | JACKET WATER HEATER | 1 | Service part / kit | eBay |
| PEHJ0271 | Cat® Emissions Upgrade Kits for Select 3500 Marine Engines | Service part / kit | Amazon eBay | |
| PEHJ0287 | Cat® Performance Upgrade Kits for Select 3508, 3512, and 3516 Marine Engines | Service part / kit | Amazon eBay | |
| PEHP3036 | Cat Reman Short and Long Blocks | Service part / kit | Amazon eBay | |
| PEHP3036-01 | Cat Reman Short and Long Blocks | Service part / kit | Amazon eBay | |
| SHA0048 | SHAFT | 1 | Service part / kit | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Engine spec — LECH3874-02 (Caterpillar)Engine spec — LEDH1045-02 (Caterpillar)Engine spec — lehq3181 (Caterpillar)Engine spec — lehw4180 (Caterpillar)Engine spec — lehw4181 (Caterpillar)Engine spec — lfhh5447 (Caterpillar)Engine spec — lfhh5448 (Caterpillar)Engine spec — lfhh6261 (Caterpillar)Engine spec — lshh6258 (Caterpillar)Engine spec — lshh6261 (Caterpillar)Spec sheet — epnsum00 (Caterpillar)Spec sheet — lehw4116 (Caterpillar)Operator's manual — 3408C, 3412, 3412C and 3412D High Performance Marine Engines-Engine Safety (Caterpillar)Reference (Caterpillar)Reference — CAT-3412-SN-2WJ01041-Load-Test-Report-and-Inspection-Checklist (Caterpillar)Reference — CAT-3412-SN-2WJ06072-Load-Test-Report-and-Inspection-Checklist (Caterpillar)Reference — Caterpillar-600-kW-CAT-3412-engine-SN-81Z24908-load-test-report-and-inspection-c (Caterpillar)Reference — Final+Ratings+Guide LECW2462-15 9.8.11 (Caterpillar)Reference — LECW2462-01 (Caterpillar)Reference — Ratings Guide Port LPCW2462-15 final LR (Caterpillar)Owner's manual — 3408C, 3412, 3412C and 3412D High Performance Marine Engines-Maintenance Intervals (Caterpillar)Parts manual — Caterpillar Engines (Caterpillar)Parts manual — Caterpillar 800 kW CAT 3412 engine SN 2WJ01849 as shipped (Caterpillar)Parts manual — KMP-Brand®Parts-Guide-Suitable-for-Caterpillar®By-Product (Caterpillar)Service manual — Alignment of Single Bearing Generators (Caterpillar)Service manual — Caterpillar Diesel Engine Fluid Recommendations (Caterpillar)Service manual — OT906706 RC (Ohio Department of Administrative Services (DAS), General Services Division, Office of State Purchasing)
This page was generated from the 27 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.