The Caterpillar C32 is a 32.1 L 1-cylinder turbocharged engine rated at 1800 rpm, producing up to 1120 kW. It powers generator sets from Caterpillar, including the 1000 kVA UTILITY POWER MODULE, SR4B and XQ1000. It holds 4730 L (1249.5 gal) of oil and 5000 L (1320.9 gal) of coolant.
Also known as: Caterpillar C32
Part of the Caterpillar C32 engine family — 2 variants share parts & fitment.
| Oil capacity | 4730.0 L |
|---|---|
| Coolant capacity | 5000.0 L |
| Displacement | 32.1 L |
| Cylinders | 1 |
| Aspiration | turbocharged |
| Rated speed | 1800 rpm |
| Gross power | 1120 kW |
Compiled from service & troubleshooting documentation across every generator set that uses the Caterpillar C32.
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 4350408 | eBay | |||
| Fuel filter | — | ||||
| Oil filter | Cartridge type full flow lube oil filters (spin-on) | — | 500 hr | ||
| Battery | 24V wet, 1125 CCA, group 31 | 7L7871 | eBay | ||
| Belt | — | ||||
| Coolant | Extended Life Coolant (ELC) | 138.0 L | 1195148 | eBay | |
| Oil | — | ||||
| Spark plug | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Step-by-step procedures compiled from the Caterpillar service manual for this engine.
| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Belts | Inspect | 250 hr | 6 mo | First service — Initial 20 to 40 Service Hours - Inspect/Adjust/Replace |
| Engine oil (S-O-S oil sample) | Test | 125 hr | Severe service occurs at high loads, in high temperatures, and in dusty conditions | |
| Aftercooler Core | Clean | 250 hr | Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Clean/Test | |
| Alternator and Fan Belts | Inspect | 250 hr | Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Every Year (Standby); Inspect/Adjust/Replace | |
| Battery Electrolyte Level | Check | 250 hr | Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Every Week (Standby) | |
| 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 Supplemental Coolant Additive (SCA) | Test | 250 hr | 6 mo | Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Every Year (Standby); Test/Add |
| Cylinder Head Grounding Stud | Inspect | 250 hr | Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Every 3 Years (Standby); Inspect/Clean/Tighten | |
| Electronic Unit Injector | Inspect | 3000 hr | First service — Initial 250 Service Hours - Inspect/Adjust | |
| Electronics Grounding Stud | Inspect | 250 hr | Every 250 Service Hours - Inspect/Clean/Tighten | |
| Engine Air Cleaner Element (Single Element) | Replace | 250 hr | Every 250 Service Hours | |
| Engine Oil Sample | Other | 250 hr | 12 mo | Obtain; Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Every Year (Standby) |
| Engine Valve Lash | Adjust | 3000 hr | 12 mo | First service — Initial 250 Service Hours (Standard): Inspect/Adjust |
| Engine Valve Lash | Inspect | 4000 hr | First service — Initial 250 Service Hours - Inspect/Adjust | |
| Engine Valve Rotators | Inspect | 3000 hr | First service — Initial 250 Service Hours | |
| 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 Injector | Adjust | 250 hr | 12 mo | First service — Initial 250 Service Hours (Standard): Inspect/Adjust |
| Fuel Tank Water and Sediment | Drain | 250 hr | Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Every Week (Standby) | |
| Magnetic Pickups | Clean | 250 hr | Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Clean/Inspect | |
| Primary air filter element | Change | 250 hr | When changing the primary element at 250 operating hours (basis of the without-indicator filter-change comparison) | |
| Rotating Rectifier | Check | 8000 hr | 36 mo | Every 9500 L (2500 US gal) of Fuel or 250 Service Hours or Yearly (Prime Power); Every 3 Years (Standby) |
| 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) | Other | 500 hr | 12 mo | First service — Initial 500 Hours (for New Systems, Refilled Systems, and Converted Systems) - Obtain |
| deep sump oil pan / lube oil | Change | 500 hr | Deep sump oil pan with 500 hour service intervals | |
| Secondary air filter element | Change | 750 hr | When changing the secondary element at 750 operating hours (basis of the without-indicator filter-change comparison) | |
| Cooling System Coolant (DEAC) | Change | 3000 hr | 36 mo | Every 3000 Service Hours or 3 Years |
| Cooling System Water Temperature Regulator | Replace | 3000 hr | 36 mo | Every 3000 Service Hours |
| Engine Mounts | Inspect | 3000 hr | Every 3000 Service Hours | |
| Engine Speed/Timing Sensors | Check | 3000 hr | Every 3000 Service Hours - Check/Clean/Calibrate | |
| Turbocharger | Inspect | 5000 hr | 36 mo | Every 5000 Service Hours |
| 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 | Every 6000 Service Hours or 3 Years: Add |
| Fan Drive Bearing | Replace | 8000 hr | Every 8000 Service Hours | |
| Overhaul (Top End) | Other | 9000 hr | Every 605 670 L (160 000 US gal) of fuel or 9000 Service Hours - C27 | |
| 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 228 000 L (60 000 US gal) of Fuel or 12 000 Service Hours or 6 Years (Prime Power); Every 6 Years (Standby) |
| Overhaul (Major) | Other | 18000 hr | Every 1 211 330 L (320 000 US gal) of fuel or 18 000 Service Hours - C27 | |
| Alternator | Inspect | 6000 hr | 72 mo | Every Year (Standby); Every 6000 Service Hours or 6 Years (Standard) |
| Batteries | Replace | 36 mo | Every 3 Years (Standby); When Required (Standard) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Clearance | Bearing bracket step minimum | less than 0.0762 | mm | |
| Clearance | Belt deflection | 9 to 15 | mm (0.35 to 0.59 inch) | 110 N (25 lb ft) force applied midway between the pulleys |
| Clearance | Coolant level below bottom of filler pipe | 13 | mm | engine stopped and cool |
| Clearance | Coolant level below bottom of filler pipe / sight glass level | 13 | mm (0.5 inch) | engine stopped and cool |
| Clearance | Fan and alternator belt deflection | 13 to 19 | mm | 110 N (25 lb) force midway between pulleys |
| Other | Bearing bracket sleeve step minimum | 0.0762 | mm | |
| Other | Cat Fast Acting Cooling System Cleaner concentration | 0.5 | L (1 pint) per 15 L (4 US gal) of cooling system capacity | cooling systems with normal deposits |
| Other | Cooling system fill rate | 19 | L (5 US gal) per minute | no faster than, to avoid air locks |
| Other | Gross Input Torque (TH55-E70) | 12 667 | N•m (9350 lb-ft) | |
| Other | Gross Input Torque (TH55-E90) | 12 677 | N•m (9350 lb-ft) | |
| Other | High idle speed for droop governors | approximately 2% to 5% | above full load speed | governors equipped with droop |
| Other | Hydrosolv liquid cleaner concentration | two to five | percent | at temperatures up to 93°C (200°F) |
| Other | Radiator cooling package design ambient temperature | 48.9 | °C (120° F) | with 50/50 water/Extended Life Coolant mixture |
| Other | Radiator cooling package maximum elevation | 1524 | m (5000 ft) | with 50/50 water/Extended Life Coolant mixture |
| Other | SCA concentration in glycol/water mixture | 3 to 6 | percent | glycol and water |
| Other | SCA concentration in water-only mixture | 6 to 8 | percent | water and SCA |
| Other | Speed droop values commonly used | 3% and 0% | % | |
| Other | Speed/timing sensor sliphead extension (install) | minimum 4 | mm | |
| Other | Speed/timing sensor sliphead push-in force | at least 22 | N | from extended position |
| Other | Stall Torque Ratio (TH55-E70) | 2.23 | ||
| Other | Stall Torque Ratio (TH55-E90) | 2.23 | ||
| Other | Supplemental coolant additive (SCA) concentration - conventional coolant | 6 | percent | do not exceed |
| Other | Supplemental coolant additive (SCA) concentration - water and SCA systems | 8 | percent | do not exceed |
| Other | Voltage droop for 0.8 power factor load | approximately 5 | % | loads with a power factor of 0.8 |
| Pressure | Air inlet filter differential pressure (clean filter) | 0.15 | kPa | |
| Pressure | Engine oil pressure at low idle | 186 to 344 | kPa | low idle speed |
| Pressure | Engine oil pressure at rated engine speed | 275 to 606 | kPa | at rated engine speed |
| Pressure | Engine oil pressure at rated engine speed | 40 to 88 | psi | at rated engine speed |
| Pressure | Maximum air pressure at the nozzle for cleaning | 205 | kPa (30 psi) | less than |
| Pressure | Maximum air pressure for cleaning | 205 | kPa | cleaning purposes |
| Pressure | Maximum air pressure for cleaning | below 205 | kPa | |
| Pressure | Maximum filtered dry air pressure for air cleaner cleaning | 207 | kPa (30 psi) | maximum |
| Pressure | Maximum water pressure for cleaning | 275 | kPa | cleaning purposes |
| Pressure | Maximum water pressure for cleaning | below 275 | kPa | |
| Pressure | Normal operating engine oil pressure | 275 to 600 | kPa | engine running at rated engine speed, SAE 10W30 oil, operating oil temperature 104 C (219.2 F), normal engine water temperature |
| Pressure | Primary filter/water separator element change point (vacuum gauge) | 50 to 70 | kPa (15 to 20 inches Hg) | |
| Pressure | Primary filter/water separator element change pressure | 50 to 70 | kPa | |
| Pressure | WS255 pump plunger load | 238,000 | lb (107,960 kg) | |
| Pressure | WS273XD pump plunger load | 275,000 | lb (124 738 kg) | |
| Pressure | WS305XD pump plunger load | 250,000 | lb (113 398 kg) | |
| Resistance | Exciter Armature (Rotor) (L2) resistance | less than 0.1 | ohm | room temperature |
| Resistance | Exciter Armature (Rotor) (L2) winding resistance | less than 0.1 | ohm | room temperature |
| Resistance | Exciter Field (Stator) (L1) resistance | 3.0 to 6.0 | ohms | room temperature |
| Resistance | Exciter Field (Stator) (L1) winding resistance | 3.0 to 6.0 | ohm | room temperature |
| Resistance | Exciter armature (rotor) L2 | less than 0.1 | ohms | |
| Resistance | Exciter field (stator) L1 winding | approximately 3.0 to 6.0 | ohms | at room temperature |
| Resistance | Insulation resistance minimum for other windings | 100,000 | ohms | drying decision |
| Resistance | Insulation resistance minimum for stator | 1 | megohm | drying decision |
| Resistance | Main Armature (Stator) (L4) resistance | less than 0.1 | ohm | room temperature |
| Resistance | Main Field (Rotor) (L3) resistance | 0.75 to 2.0 | ohms | room temperature |
| Resistance | Main Field (Rotor) (L3) winding resistance | 0.75 to 2.0 | ohm | room temperature |
| Resistance | Main armature (Stator) (L4) winding resistance | less than 0.1 | ohm | room temperature |
| Resistance | Main armature (stator) L4 | less than 0.1 | ohms | |
| Resistance | Main field (rotor) L3 winding | approximately 1.25 to 2.0 | ohms | at room temperature |
| Resistance | Pilot Exciter Armature (L5) resistance | less than 0.1 | ohm | room temperature |
| Resistance | Pilot Exciter Armature (L5) winding resistance | less than 0.1 | ohm | room temperature |
| Resistance | Pilot exciter armature L5 | less than 0.1 | ohms | |
| Resistance | Resistor (R5) resistance | 27000 | ohm | nominal ± 2700 ohms |
| Resistance | Three-diode rectifier block forward reading | 0.4 to 1.0 | meter on diode range | |
| Resistance | Varistor (CR7) resistance | 15000 | ohm | minimum |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | 155L EXTENDED LIFE COOLANT | Part COOL001 | |||
| Coolant | 50/50 mixture water/Caterpillar Extended Life Coolant | below 48°C | Radiator cooling packages designed for up to 48.9° C (120° F) ambient; coolant sump refill capacities vary by oil sump/pan (18 L to 106 L service refill with new oil filter change) | ||
| Coolant | COOLANT-LONG LIFE-BULK-1 LITER | Part 1195148, order qty 155 | |||
| 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 (Extended Life Coolant); or Cat DEAC | Caterpillar EC-1 (ELC); ASTM D4985 or ASTM D5345 (heavy-duty) | 55.0 L | 1:1 mixture of water and glycol; engine only capacity 55 L | |
| 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 | Caterpillar extended life coolant, 50% Ethylene glycol antifreeze with corrosion inhibitor | Jacket water heater 240V AC, 50/60 Hz single phase, 9 kW, for use in 0° C (32° F) minimum | |||
| Coolant | Commercial long life coolants | Caterpillar Engine Coolant Specification -1 (Caterpillar EC-1) | Obtain a Coolant Sample (Level 1) if the cooling system is filled with this coolant instead of Cat ELC. | ||
| Coolant | Extended Life Coolant (ELC) | 138.0 L | 138L extended life coolant; bulk coolant part 1195148, additive part 3690804 | ||
| 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. | ||
| Coolant | LONG LIFE COOLANT | Part LS0332 | |||
| 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 | SAE 10W30 | Referenced as the oil used when normal operating engine oil pressure is specified | |||
| 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 | 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 |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| 01-05 | Injector Cylinder 1 Open Circuit | Injector Cylinder 1 Open Circuit | ||
| 01-06 | Injector Cylinder 1 Short | Injector Cylinder 1 Short | ||
| 02-06 | Injector Cylinder 2 Short | Injector Cylinder 2 Short | ||
| 03-05 | Injector Cylinder 3 Open Circuit | Injector Cylinder 3 Open Circuit | ||
| 04-05 | Injector Cylinder 4 Open Circuit | Injector Cylinder 4 Open Circuit | ||
| 04-06 | Injector Cylinder 4 Short | Injector Cylinder 4 Short | ||
| 05-06 | Injector Cylinder 5 Short | Injector Cylinder 5 Short | ||
| 06-05 | Injector Cylinder 6 Open Circuit | Injector Cylinder 6 Open Circuit | ||
| 100-03 | Engine Oil Pressure Open/Short to +Batt | Engine Oil Pressure Open/Short to +Batt | ||
| 100-04 | Engine Oil Pressure Short To Ground | Engine Oil Pressure Short To Ground | ||
| 100-13 | Engine Oil Pressure Calibration Required | Engine Oil Pressure Calibration Required | ||
| 110-04 | Engine Coolant Temperature Short To Ground | Engine Coolant Temperature Short To Ground | ||
| 1490-02 | Loss Of Engine Speed Signal (Top Speed Timing Sensor) | Loss Of Engine Speed Signal (Top Speed Timing Sensor) | ||
| 168-00 | System Voltage High | System Voltage High | ||
| 168-01 | System Voltage Low | System Voltage Low | ||
| 168-02 | System Voltage Intermittent | System Voltage Intermittent | ||
| 172-03 | Intake Manifold Air Temp Open/Short To +Batt | Intake Manifold Air Temp Open/Short To +Batt | ||
| 172-04 | Intake Manifold Air Temp Short To Ground | Intake Manifold Air Temp Short To Ground | ||
| 174-03 | Fuel Temperature Open/Short To +Batt | Fuel Temperature Open/Short To +Batt | ||
| 174-04 | Fuel Temperature Short To Ground | Fuel Temperature Short To Ground | ||
| 175-03 | Engine Oil Temperature Open/Short To +Batt | Engine Oil Temperature Open/Short To +Batt | ||
| 175-04 | Engine Oil Temperature Short To Ground | Engine Oil Temperature Short To Ground | ||
| 190-08 | Engine Speed Signal Abnormal (Top Speed Timing Sensor) | Engine Speed Signal Abnormal (Top Speed Timing Sensor) | ||
| 248-09 | CAT Data Link Communications | CAT Data Link Communications | ||
| 253-02 | Personality Module Mismatch | Personality Module Mismatch | ||
| 254-12 | Electronic Control Module Error | Electronic Control Module Error | ||
| 261-13 | Engine Timing Calibration Required | Engine Timing Calibration Required | ||
| 262-03 | 5 Volt Sensor Supply Short To +Batt | 5 Volt Sensor Supply Short To +Batt | ||
| 262-04 | 5 Volt Sensor Supply Short To Ground | 5 Volt Sensor Supply Short To Ground | ||
| 263-03 | Digital Sensor Supply Short To +Batt | Digital Sensor Supply Short To +Batt | ||
| 263-04 | Digital Sensor Supply Short To Ground | Digital Sensor Supply Short To Ground | ||
| 268-02 | Check Programmable Parameters | Check Programmable Parameters | ||
| 273-00 | Turbo Outlet Pressure Above Normal | Turbo Outlet Pressure Above Normal | ||
| 273-03 | Turbo Outlet Pressure Open/Short To +Batt | Turbo Outlet Pressure Open/Short To +Batt | ||
| 273-04 | Turbo Outlet Pressure Short To Ground | Turbo Outlet Pressure Short To Ground | ||
| 273-13 | Turbo Outlet Pressure Calibration Required | Turbo Outlet Pressure Calibration Required | ||
| 274-03 | Atmospheric Pressure Open/Short To +Batt | Atmospheric Pressure Open/Short To +Batt | ||
| 274-04 | Atmospheric Pressure Short To Ground | Atmospheric Pressure Short To Ground | ||
| 274-13 | Atmospheric Pressure Calibration Required | Atmospheric Pressure Calibration Required | ||
| 336-02 | Incorrect ECS Switch Inputs | Incorrect ECS Switch Inputs | ||
| 337-02 | Incorrect Remote E-Stop Switch Inputs | Incorrect Remote E-Stop Switch Inputs | ||
| 342-02 | Loss Of Secondary Engine Speed Signal (Bottom Speed/Timing Sensor) | Loss Of Secondary Engine Speed Signal (Bottom Speed/Timing Sensor) | ||
| 342-08 | Secondary Engine Speed Signal Abnormal (Bottom Speed/Timing Sensor) | Secondary Engine Speed Signal Abnormal (Bottom Speed/Timing Sensor) | ||
| 444-05 | Start Relay Open Circuit | Start Relay Open Circuit | ||
| 444-06 | Start Relay Short To Ground | Start Relay Short To Ground | ||
| 446-05 | Air Shut-off Relay Open | Air Shut-off Relay Open | ||
| 446-06 | Air Shut-off Relay Short | Air Shut-off Relay Short | ||
| 460-03 | Filtered Fuel Pressure Open/Short To +Batt | Filtered Fuel Pressure Open/Short To +Batt | ||
| 460-04 | Filtered Fuel Pressure Short To Ground | Filtered Fuel Pressure Short To Ground | ||
| 460-13 | Filtered Fuel Pressure Calibration Required | Filtered Fuel Pressure Calibration Required | ||
| 535-08 | Exhaust Temperature Sensor Noisy Signal | Exhaust Temperature Sensor Noisy Signal | ||
| 545-05 | Ether Start Relay Open/Short To +Batt | Ether Start Relay Open/Short To +Batt | ||
| 545-06 | Ether Start Relay Short To Ground | Ether Start Relay Short To Ground | ||
| 91-08 | Throttle Position Signal Abnormal | Throttle Position Signal Abnormal |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Tools: Analog voltmeter, Voltmeter 300-500 VAC or 1000 VAC
Tools: 10 Amp DC ammeter
⚠ The VR3 regulator is protected by a fuse(s) and a solid-state overcurrent protection. If a fuse becomes open, contact a Caterpillar dealer.
⚠ Do not exceed half rated speed
⚠ Do not allow output to exceed nameplate rating
Tools: Digital Multimeter, 12 VDC Battery
⚠ Electrocution hazard
Tools: 142-5055 Insulation Testing Gp, 9U-6003 Insulation Testing Gp
Tools: Digital multimeter
⚠ High voltage hazard
Tools: 12 volt battery, Rheostat 50 Ohms 300 Watts, Diode, Diode bridge, Variable power supply
⚠ Shorted diode can damage exciter rotor
Tools: Digital Multimeter 6V-7070
Tools: Ohmmeter, Test light
⚠ High voltage can cause severe injury or death
Tools: 6V-7070 Digital Multimeter, 146-4080 Digital Multimeter (RS232)
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 3 | 12 Lead Delta | T6 and T9 tied together and grounded = neutral | T2 and T10 connection is the high phase | |
| 3 | 12 Lead Wye - High Voltage | T10, T11, T12 tied together = neutral | Typical high voltage connection (Series Wye, 60 Hz) | |
| 3 | 12 Lead Wye - Low Voltage | T10, T11, T12 tied together = neutral | Typical low voltage connection (Parallel Wye, 60 Hz) | |
| 3 | 6 Lead Delta | Typical Delta Configuration (60 Hz, 6 Lead) | ||
| 3 | 6 Lead Wye | T4, T5, T6 tied together = neutral | Terminals T4, T5 and T6 become a neutral connection when tied together | |
| 3 | Delta - 6 lead | 6 | Winding pitch must be two-thirds or the generator must be derated. | |
| 3 | Wye - 10 lead (high voltage) | 10 | Illustration 13. Only used on 3306B generator sets and 3406C generator sets. Terminal T0 is the neutral lead. | |
| 3 | Wye - 10 lead (low voltage) | 10 | Only used on 3306B and 3406C generator sets. Terminal T0 is the neutral lead. | |
| 3 | Wye - 12 lead (high voltage) | 12 | Terminals T10, T11, and T12 become neutral connections when tied together. | |
| 3 | Wye - 12 lead (low voltage) | 12 | Terminals T10, T11, and T12 become neutral connections when tied together. | |
| 3 | Wye - 4 lead | 4 | Only used on 3306B generator sets and 3406C generator sets. Terminal T0 is the neutral lead. | |
| 3 | Wye - 6 lead | 6 | Terminals T4, T5, and T6 become neutral connections when the terminals are tied together. | |
| 190-220 (50 Hz), 190-240 (60 Hz) | 3 | Wiring Code A | 12 wire | Winding 6; 5000/6100/7000 12 wire factory connection |
| 240 | 3 | Delta | Produces 208 V high phase to neutral and 240 V low phase to neutral | |
| 240 | 3 | Delta - 12 lead | 12 | Terminals T6 and T9 become the neutral connections when tied together and grounded. T2 and T10 connection is the high phase. 240 V, 60 Hz, three-phase: 208 Volts between the high phase and neutral; 240 Volts between either of the low phases and neutral. |
| 380-415 (50 Hz), 380-480 (60 Hz) | 3 | Wiring Code D | 12 wire | Winding 6; 5000 12 wire factory connection |
| 480 | 3 | Parallel Wye | 12 lead | Typical high voltage connection |
| 480 | 3 | Series Wye | 12 lead | Typical high voltage connection |
| 480 | 3 | Wye | 6 lead | Typical Wye Configuration |
| 58% of three-phase connected voltage | 1 | Wye | any phase lead and neutral | Single-phase from three-phase generator |
| 600 | 3 | Wiring Code D | 12 wire | Winding 9; R448 voltage sensing and transformer |
| Four Lead Wye | Three-phase | T1/T2/T3 to loads, T0 to neutral | T1, T2, T3, T0 | Regulator leads 22, 24, 20 from T1, T2, T3 respectively |
| Six Lead Delta | Three-phase | T1/T6, T2/T4, T3/T5 series loop connections | T1, T2, T3, T4, T5, T6 | Delta configuration |
| Six Lead Wye | Three-phase | T1/T2/T3 to loads, T4/T5/T6 to neutral | T1, T2, T3, T4, T5, T6 | Regulator sensing from T1, T2, T3 |
| Ten Lead Wye High Voltage | Three-phase | T1/T2/T3 to loads with T4/T7, T5/T8, T6/T9 series connections | T1, T2, T3, T4, T5, T6, T7, T8, T9, T0 | High voltage configuration |
| Ten Lead Wye Low Voltage | Three-phase | T1/T7, T2/T8, T3/T9 parallel connections | T1, T2, T3, T4, T5, T6, T7, T8, T9, T0 | Low voltage configuration |
| Twelve Lead Delta | Three-phase | T1/T12, T2/T10, T3/T11 series loops with jumpers | T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12 | Delta configuration with 12 leads |
| Twelve Lead Wye High Voltage | Three-phase | T1/T2/T3 to loads with series connections | T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12 | High voltage configuration with 12 leads |
| Twelve Lead Wye Low Voltage | Three-phase | T1/T7, T2/T8, T3/T9 parallel connections | T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12 | Low voltage configuration with 12 leads |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Part # | Description | Category |
|---|---|---|
| 4350408 | CLEANER GP-AIR-D | Air filter |
| ACL0017 | STANDARD AIR CLEANER 17 | Air filter |
| LF4811 | P FRAME / R FRAME DC REGULATOR | Avr |
| LF9848 | IVR-EM10A | Avr |
| M-CK3758261P | Cylinder Kit | Cylinder kit |
| M-CK3675181P | Cylinder Kit | Cylinder kit |
| 1195148 | COOLANT-LONG LIFE-BULK-1 LITER | Fluid |
| 1U-5490 | Hydrosolv 4165 liquid cleaner, 19 L (5 US gallon) | Fluid |
| 3690804 | ADDITIVE-COOLANT | Fluid |
| 5N-5561 | Silicone Lubricant | Fluid |
| COOL001 | 155L EXTENDED LIFE COOLANT | Fluid |
| LS0332 | LONG LIFE COOLANT | Fluid |
| 1R-0762 | Fuel Secondary - ADV | Fuel filter |
| 1R-0770 | Fuel/Water Separator | Fuel filter |
| M-4599781 | Gasket Set - Oil Cooler & Lines | Gasket |
| 1R-1808 | Engine Oil - ADV | Oil filter |
| 1535710 | BATTERY-WET | Service part / kit |
| 174-6854 | Hydrosolv 100 liquid cleaner, 19 L (5 US gallon) | Service part / kit |
| 2323232 | Connecting rod | Service part / kit |
| 2613291 | MOTOR GP-ELECSTG | Service part / kit |
| 3395996 | CHARGER-BATTERY | Service part / kit |
| 4864557 | HEATER GP-GEN | Service part / kit |
| 5770040 | HEATER GP-JW BSC | Service part / kit |
| 7L7871 | 24 VOLT BATTERY SET / BATTERY GP | Service part / kit |
| 7L7872 | 24 VOLT BATTERY SET | Service part / kit |
| BAT2429 | ENCLO BATT 24V WET 1400CCA 29 | Service part / kit |
| BTC1038 | ENCLOSURE BATT CHARGER 10A | Service part / kit |
| ELSM248 | ELEC. START MOTOR HEAVY DUTY | Service part / kit |
| LF3239 | SERIES WIRED SPACE HEATERS | Service part / kit |
| LS1230 | ENCLOSURE HVY DUTY BATTERY SET | Service part / kit |
| R-20R2284 | C15/C18/C27/C32 ACERT Trim file (12-digit serial) | Service part / kit |
| R-20R2285 | C15/C18/C27/C32 ACERT Trim file (12-digit serial) | Service part / kit |
| SHK0022 | SPACE HEATER 1400S FRAME | Service part / kit |
| M-3675181 | Piston | Piston |
| M-3758261 | Piston | Piston |
| JWH0241 | JW HEATER - SINGLE W/PUMP 60HZ | Pump |
| LF5341 | JWH W/ PUMP - 60HZ | Pump |
| 4471546 | TRANSFORMER GP-CURRENT | Sensor |
| 5N9597 | VOLTAGE INDICATOR 480V, 60HZ | Sensor |
| CT20006 | CT 2000:5 RATIO | Sensor |
| LS0328 | ELECTRIC STARTING MOTOR-HEAVY | Starter |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
The Caterpillar C32 engine has an oil capacity of 4730.0 liters.
The Caterpillar C32 has a displacement of 32.1 liters with 1 cylinders.
The Caterpillar C32 powers 4 generator set(s), including Caterpillar 1000 kVA UTILITY POWER MODULE, Caterpillar C32, Caterpillar SR4B, Caterpillar XQ1000.
A commonly reported issue on generators using the Caterpillar C32 is: When the engine oil pressure is increased beyond the low oil pressure setpoint, the GSC will inform the governor that the engine speed should be increased from IDLE to RATED rpm..