The Caterpillar 3512B HD is a 51.8 L ta engine rated at 1200 rpm, producing up to 1280 kW. It powers generator sets from Caterpillar, including the DM8235, DM8238, DM8250 and DM8259. It holds 555 L (146.6 gal) of oil and 305.8 L (80.8 gal) of coolant.
Also known as: Caterpillar 3512B HD
Part of the Caterpillar 3512B engine family — 6 variants share parts & fitment.
| Oil capacity | 555.0 L |
|---|---|
| Coolant capacity | 305.8 L |
| Displacement | 51.8 L |
| Aspiration | TA |
| Rated speed | 1200 rpm |
| Gross power | 1280 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil | Sump refill with filter | 310.4 L | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| 105-amp | Alternator | alternator |
| PK48000M | 4 tonne Palfinger PK48000M hydraulic crane | crane |
| 5N-5561 | Silicone Lubricant | fluid |
| 1R-0755 | High Efficiency Fuel Filter | 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 |
| 2322522 | Reman Injectors | injector |
| 128-6786 | Crankshaft Bare | other_service |
| 1440725 | Connecting rod | other_service |
| 1743191 | Reman Cylinder Heads | other_service |
| 249-0437 | Oxidation Catalyst Assembly - Round | 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 |
| 113-8432 | Front Seal | seal |
| 245-5829 | Coolant Battery Tester Refractometer | sensor |
| ESD5526 | Speed Controller | speed_controller |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
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 3512B HD engine has an oil capacity of 555.0 liters.
The Caterpillar 3512B HD has a displacement of 51.8 liters.
The Caterpillar 3512B HD powers 5 generator set(s), including Caterpillar DM8235, Caterpillar DM8238, Caterpillar DM8250, Caterpillar DM8259, Caterpillar SR5.