The Cummins/Onan ISM is a 10.8 L 6-cylinder variable geometry turbocharged engine rated at 2100 rpm, producing up to 373 kW. It powers generator sets from Cummins/Onan, including the IS. It holds 38.98 L (10.3 gal) of oil.
Also known as: Cummins ISM
| Oil capacity | 38.98 L |
|---|---|
| Displacement | 10.8 L |
| Cylinders | 6 |
| Aspiration | Variable Geometry Turbocharged |
| Rated speed | 2100 rpm |
| Gross power | 373 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | — | find | |||
| Coolant | 50/50 mix of water and antifreeze (CES 14603) | — | |||
| Oil | 15W40 CES 20078, CES 20076, or CES 20071 | 39.0 | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan ISM engine has an oil capacity of 38.98 liters.
The Cummins/Onan ISM has a displacement of 10.8 liters with 6 cylinders.
The Cummins/Onan ISM powers 1 generator set(s), including Cummins/Onan IS.