The Caterpillar 3056E is a 5.98 L 6-cylinder turbocharged air-to-air aftercooled engine rated at 2000 rpm, producing up to 135 kW. It holds 13.1 L (3.5 gal) of oil and 15.5 L (4.1 gal) of coolant.
Also known as: Caterpillar 3056E
Part of the Caterpillar 3056E engine family — 3 variants share parts & fitment.
| Oil capacity | 13.1 L |
|---|---|
| Coolant capacity | 15.5 L |
| Displacement | 5.98 L |
| Cylinders | 6 |
| Aspiration | Turbocharged Air-To-Air Aftercooled |
| Rated speed | 2000 rpm |
| Gross power | 135 kW |
No generator set in our catalog cites this exact engine designation yet; its specifications and fault codes are documented here.
| Code | Meaning |
|---|---|
| active fault code | Electronic problem detected |
| logged fault | Problem has occurred, but is not presently active |
Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.
| Part # | Description | Category |
|---|---|---|
| 2255441 | Connecting rod (Grade L) | other_service |
| 2255453 | Connecting rod (Grade J) | other_service |
| 2255454 | Connecting rod (Grade H) | other_service |
| QEHQ9943 | Not explicitly stated | other_service |
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 3056E engine has an oil capacity of 13.1 liters.
The Caterpillar 3056E has a displacement of 5.98 liters with 6 cylinders.