Caterpillar 3512B TA Engine
The Caterpillar 3512B TA is a 51.8 L 12-cylinder ta engine rated at 1500 rpm, producing up to 1200 kW. It powers generator sets from Caterpillar, including the DM8033, DM8038 and DM8044. It holds 310.4 L (82.0 gal) of oil and 1614 L (426.4 gal) of coolant.
Also known as: CAT 3512B TA
Part of the Caterpillar 3512B engine family — 6 variants share parts & fitment.
Service parts for the 3512B TA
The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.
Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.
Engine specifications
| Oil capacity | 310.4 L |
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| Coolant capacity | 1614.0 L |
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| Displacement | 51.8 L |
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| Cylinders | 12 |
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| Aspiration | TA |
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| Rated speed | 1500 rpm |
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| Gross power | 1200 kW |
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Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | Single element canister type air cleaner | | — | 1200 hr | |
| Fuel filter | Secondary fuel filters | | 1R0763 | 600 hr | Amazon eBay $16.61 |
| Oil filter | | | 3890434 | 1200 hr | Amazon $148.00 eBay $82.42 PartsGeek $30.97 |
| Battery | Batteries with rack and cables; Battery disconnect switch | | — | 1200 hr | |
| Belt | Rubber anti-vibration mounts (shipped loose); Spring-type vibration isolator (shipped loose) | | — | 1200 hr | |
| Coolant | | 1614.0 L | — | 3658 hr | |
| Oil | Sump refill with filter | 310.4 L | — | | |
| Spark plug | | | — | 1200 hr | |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|
| Coolant | SCAC cooling / jacket water | | | | Generator temperature rise based on a 40 degree C ambient per NEMA MG1-32. |
| Engine oil | Lubricating oil | | | 675.0 L | Sump refill with filter; integral lube oil cooler, gear type lube oil pump |
| Fuel | 35 API gravity | | | | LHV of 42 780 kJ/kg (18,390 Btu/lb) at 29 C (85 F), weighing 838.9 g/liter (7.001 lbs/U.S. gal.) |
| Fuel | No. 2 diesel fuel, 35º API gravity | LHV 42 780 kJ/kg (18,390 Btu/lb) | | | Weighing 838.9 g/liter (7.001 lbs/U.S. gal.), used at 29º C (85º F). Consult Cat dealer for Low Sulfur fuel and Biodiesel capability. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Parts cataloged across the Caterpillar 3512B family
50| Part # | Description | Category |
|---|
| 8N6309 | Air filter outer | air_filter |
| 105-amp | Alternator | alternator |
| 141-7116 | V-belt | belt |
| 174-6854 | Hydrosolv 100 liquid cleaner, 19 L (5 US gallon) | fluid |
| 1U-5490 | Hydrosolv 4165 liquid cleaner, 19 L (5 US gallon) | fluid |
| 1U-5492 | Hydrosolv 100 Liquid Cleaner, 19 L (5 US gal) | fluid |
| 1U-8804 | Hydrosolv 100 Liquid Cleaner, 4 L (1 US gal) | fluid |
| 1U-8812 | Hydrosolv 4165 Liquid Cleaner, 4 L (1 US gal) | fluid |
| 5N-5561 | Silicone Lubricant | fluid |
| 8T-5571 | Hydrosolv 100 Liquid Cleaner, 208 L (55 US gal) | fluid |
| 8T-7570 | Hydrosolv 4165 Liquid Cleaner, 208 L (55 US gal) | fluid |
| 133-5673 | Fuel/Water Separator | fuel_filter |
| 1R-0749 | Fuel Secondary - ADV | fuel_filter |
| 1R-0755 | High Efficiency Fuel Filter | fuel_filter |
| 1R0750 | Filter fuel | fuel_filter |
| 1R0755 | Filter fuel | fuel_filter |
| 1R0756 | Filter fuel | fuel_filter |
| 3S3875 | Filter fuel | fuel_filter |
| 10R9951 | Head Gaskets | gasket |
| 1744947 | Aftercooler and Lines Gaskets | gasket |
| 2322507 | Manifold Gaskets | gasket |
| 2322521 | Turbocharger Gaskets | gasket |
| 2342795 | Injector Seals/Gaskets | gasket |
| 1R0741 | Filter hydraulic | hydraulic_filter |
| 2322522 | Reman Injectors | injector |
| 1R-0716 | Engine Oil | oil_filter |
| 1R-1808 | Engine Oil - ADV | oil_filter |
| 1R0719 | Filter oil | oil_filter |
| 1R0726 | Filter oil | oil_filter |
| 138-8440 | Component cleaner | other_service |
| 1440725 | Connecting rod | other_service |
| 169-8373 | Fluid Sampling Bottle | other_service |
| 1743191 | Reman Cylinder Heads | other_service |
| 249-0437 | Component 249-0437 | other_service |
| 4C-5597 | Anti-Seize Compound | other_service |
| 4C-9301 | Coolant Conditioner Test Kit | other_service |
| 5P-3413 | Pipe Sealant for external threads of the zinc rod plug | other_service |
| 8T-5296 | Coolant Conditioner Test Kit | other_service |
| 9S-3263 | Compound for the shoulder of a new zinc rod | other_service |
| 9S-4030 | Thread Lock | other_service |
| PEHJ0271 | Cat® Emissions Upgrade Kits for Select 3500 Marine Engines | other_service |
| PEHJ0287 | Cat® Performance Upgrade Kits for Select 3508, 3512, and 3516 Marine Engines | other_service |
| 1U-5718 | Vacuum Pump | pump |
| 222-5152 | Water pump repair kit | pump |
| 9S-8140 | Pressurizing Pump | pump |
| 113-8432 | Front seal | seal |
| 4W3864 | Water pump seal | seal |
| 9G8010 | Switch | sensor |
| ESD5526 | Speed Controller | speed_controller |
| 248-5513 | Thermostat | thermostat |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Filters for this engine
- Air filter: Caterpillar 1W3636 Caterpillar 1327171 Donaldson P117781 Donaldson P526415 Wix 42239 Ac Delco A902C Wix 46853 Ac Delco A1573C
- Fuel filter: Caterpillar 1R0763 Caterpillar 3890433 Caterpillar 1110716 Donaldson P551313 Donaldson P551316 Donaldson P552020 Wix 33528 Wix 33685NP
- Fuel filter (secondary): Caterpillar 1R0763 Donaldson P551313 Wix 33528
- Oil filter: Caterpillar 3890434 Donaldson P551808 Wix 57792
Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.
Also used in
4- Caterpillar 777DHAA — Dump Truck
- Caterpillar 784B — Dump Truck
- Caterpillar 785B — Dump Truck
- Caterpillar 785C — Dump Truck
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.
Common questions
What is the oil capacity of the Caterpillar 3512B TA?
The Caterpillar 3512B TA engine has an oil capacity of 310.4 liters.
What is the displacement of the Caterpillar 3512B TA?
The Caterpillar 3512B TA has a displacement of 51.8 liters with 12 cylinders.
Which generators use the Caterpillar 3512B TA engine?
The Caterpillar 3512B TA powers 8 generator set(s), including Caterpillar 3512B TA, Caterpillar DM8033, Caterpillar DM8038, Caterpillar DM8044, Caterpillar DM8193.
What oil filter does the Caterpillar 3512B TA use?
The Caterpillar 3512B TA uses oil filter part numbers Caterpillar 3890434, Donaldson P551808, Wix 57792.
What fuel filter does the Caterpillar 3512B TA use?
The Caterpillar 3512B TA uses fuel filter part numbers Caterpillar 1R0763, Caterpillar 3890433, Caterpillar 1110716.
What air filter does the Caterpillar 3512B TA use?
The Caterpillar 3512B TA uses air filter part numbers Caterpillar 1W3636, Caterpillar 1327171, Donaldson P117781.