Service parts for the 3512C
Grouped by system, with how many of each the parts manual calls for.
Oil system
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 | 1500 kW |
| Standby kVA | 1875 |
| Prime power | 1360 kW |
| Emissions | EPA Tier 2 |
| Voltage options | 480 V |
| Rated current | 2255 A |
| Power factor | 0.8 |
| Coolant capacity | 156.8 L |
Filters for the Caterpillar 3512C
4Engine-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.
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P551808 | Lube Filter, Spin-On Full Flow | CATERPILLAR 1R1808, CATERPILLAR 1R808, NAPA 7792, BALDWIN B7299 | KuduParts $80.00 |
| Fuel filter | P551313 | Fuel Filter, Spin-On Secondary | CATERPILLAR 1R0763, BALDWIN BF7633, LOESING 025135, INGERSOLL RAND 1R0750 | KuduParts $17.00 |
| Fuel filter | P551316 | Fuel Filter, Spin-On | CATERPILLAR 1R0755, CATERPILLAR 3890433, NAPA 3685, BALDWIN BF7639 | KuduParts $54.00 FridayParts $55.99 |
| Fuel / water separator | P552020 | Fuel Filter, Water Separator Cartridge | CATERPILLAR 1110716, CATERPILLAR 3I1252, BALDWIN PF7890-10, IMPERIAL 04FS1206 | buy |
Maintenance & consumables
for the Caterpillar 3512C| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Fuel filter | — | ||||
| Oil filter | 8/19/25, 591hrs | 3890434 | Amazon eBay $82.42 PartsGeek $30.97 NAPA $45.70 | ||
| Battery | — | ||||
| Belt | — | ||||
| Coolant | — | ||||
| Oil | 100 kPa (29.61 in Hg) and 25° C (77° F) | — | |||
| Spark plug | — |
Compatible filters for the Caterpillar 3512C — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
- Fuel filter: Caterpillar 1R0763 Caterpillar 3890433 Donaldson P551313 Donaldson P551316 Wix 33528
Service specifications
12| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| 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 | 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 | Stall Torque Ratio (TH55-E70) | 2.23 | ||
| Other | Stall Torque Ratio (TH55-E90) | 2.23 | ||
| 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) | |
| Speed | Maximum Input Speed (TH55-E70/TH55-E90 transmissions) | 1970 | rpm | |
| Speed | Rated Input Speed (TH55-E70/TH55-E90 transmissions) | 1900 | rpm |
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 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 NGEC | Natural Gas; 16,000 Service Hours or Three Years; use interval that occurs first | |||
| 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 NGEO | Natural Gas | |||
| Engine oil | Cat Arctic DEO SYN SAE 0W-30 | -40°C to 30°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | Cat DEO SYN SAE 5W-40 | -30°C to 50°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | Cat DEO SAE 10W-30 | -18°C to 40°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | Cat DEO SAE 15W-40 | -9°C to 50°C | Engine Crankcase; Industrial Engines | ||
| Fuel | 35° API, LHV 42 780 kJ/kg (18,390 Btu/lb), density 838,9 g/L (Diesel ≥7 L rating condition) | Reference fuel for Diesel rating conditions | |||
| Fuel | 35° API gravity at 60°F (16°C) | LHV 18,390 Btu/lb (42 780 kJ/kg) | Fuel at 85°F (29°C) weighing 7.001 lbs/U.S. gal (838.9 g/liter) | ||
| Fuel | 35° API gravity, LHV 42 780 kJ/kg (18,390 btu/lb) | SAE J1995 | Diesel engines 7 liter and higher; used at 29°C (84.2°F) with density 838.9 g/L | ||
| Fuel | EPA 2D 89.330-96 | EPA 2D 89.330-96 | Diesel engines up to 6.6 liter; density 0.845-0.850 kg/L @ 15°C (59°F); fuel inlet temperature 40°C (104°F) | ||
| Fuel | dry natural gas, LHV 35.54 MJ/Nm3 (905 btu/ft3) | Gas ratings based on SAE J1349 standard conditions of 100 kPa (29.61 in Hg) and 25°C (77°F) | |||
| Grease | Cat Generator Set Grease | Part Number 108-8611 |
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 |
|---|---|---|---|---|
| 480 | 3 | 6 lead | Checklist: Generator end is 12 lead reconnectable - marked NO; 6 Lead. Generator end has PMG permanent magnet generator - 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
What size generator is the Caterpillar 3512C?
The Caterpillar 3512C is rated 1500 kW standby (1875.0 kVA).
What engine is in the Caterpillar 3512C?
The Caterpillar 3512C is powered by the Caterpillar 3512C engine.
Is the Caterpillar 3512C diesel or gas?
The Caterpillar 3512C runs on diesel.
How much coolant does the Caterpillar 3512C hold?
The Caterpillar 3512C cooling system holds 156.8 liters (41.4 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the prime power rating of the Caterpillar 3512C?
The Caterpillar 3512C is rated 1360 kW prime, against 1500 kW standby.
What voltages is the Caterpillar 3512C available in?
The Caterpillar 3512C is offered in 480 V.
What oil filter fits the Caterpillar 3512C?
The Caterpillar 3512C uses oil filter part number 3890434.
Which fuel filter part number does the Caterpillar 3512C take?
The Caterpillar 3512C uses fuel filter part numbers CATERPILLAR 1R0763, CATERPILLAR 3890433.
Parts
1| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 1440725 | Connecting rod | Service part / kit | Amazon eBay $630.00 |
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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 25% | 128.4 | 33.9 |
| Standby | 50% | 219.8 | 58.1 |
| Standby | 75% | 310.5 | 82.0 |
| Standby | 100% | 396.0 | 104.6 |
Available documents
This page was generated from the 14 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.