The Caterpillar 3304B is a 7 L 4-cylinder turbocharged engine rated at 1500 rpm, producing up to 100 kW. It powers generator sets from Caterpillar, including the 3304, 3304B 50Hz and 3304B 60Hz. It holds 22.5 L (5.9 gal) of oil and 13 L (3.4 gal) of coolant.
Also known as: Caterpillar 3304B
Part of the Caterpillar 3304B engine family — 2 variants share parts & fitment.
| Oil capacity | 22.5 L |
|---|---|
| Coolant capacity | 13.0 L |
| Displacement | 7.0 L |
| Cylinders | 4 |
| Aspiration | Turbocharged |
| Rated speed | 1500 rpm |
| Gross power | 100 kW |
| Part # | Description | Category |
|---|---|---|
| M-1W3711 | Alternator, V, .69in (17.5mm) - 67.99in (1727mm) | belt |
| 1R-1740 | Part 1R-1740 | filter |
| 8N1721 | Connecting rod | other_service |
| 8N1984 | Connecting rod | other_service |
| PEHP3036 | Cat Reman Short and Long Blocks | other_service |
| PEHP3036-01 | Cat Reman Short and Long Blocks | other_service |
| DM-6J6915 | SEAL RING 3304 | seal |
| ESD5500E | 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.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
The Caterpillar 3304B engine has an oil capacity of 22.5 liters.
The Caterpillar 3304B has a displacement of 7.0 liters with 4 cylinders.
The Caterpillar 3304B powers 3 generator set(s), including Caterpillar 3304, Caterpillar 3304B 50Hz, Caterpillar 3304B 60Hz.