The Cummins/Onan C8.3 is a 8.3 L 6-cylinder turbocharged and after-cooled engine rated at 1470 rpm, producing up to 147 kW. It powers generator sets from Cummins/Onan, including the CFP83-F10. It holds 18.9 L (5.0 gal) of oil and 22.3 L (5.9 gal) of coolant.
Also known as: Cummins C8.3
Part of the Cummins/Onan C8.3 engine family — 2 variants share parts & fitment.
| Oil capacity | 18.9 L |
|---|---|
| Coolant capacity | 22.3 L |
| Displacement | 8.3 L |
| Cylinders | 6 |
| Aspiration | Turbocharged and After-Cooled |
| Rated speed | 1470 rpm |
| Gross power | 147 kW |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Cummins Filtration AF26125 | — | |||
| Fuel filter | Cummins Filtration FS1251 | — | |||
| Oil filter | — | ||||
| Belt | — | ||||
| Coolant filter | — | ||||
| Oil | 23.8 L | — | |||
| Spark plug | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| RU5045 | Air Cleaner | air_filter |
| WF2072 | Coolant Filter | coolant_filter |
| V70509 | Lube Oil | fluid |
| FS1251 | Fuel Filter | fuel_filter |
| LF9009 | Lube Filter | oil_filter |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The Cummins/Onan C8.3 engine has an oil capacity of 18.9 liters.
The Cummins/Onan C8.3 has a displacement of 8.3 liters with 6 cylinders.
The Cummins/Onan C8.3 powers 1 generator set(s), including Cummins/Onan CFP83-F10.