Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | 302P408 | 302P408 | Amazon eBay |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan NHC-4 is a 8.15 L 4-cylinder natural engine. It powers generator sets from Cummins/Onan, including the T0DFJ-4R8 and T0DFJ-9R8.
Also known as: Cummins NHC-4
| Displacement | 8.15 L |
|---|---|
| Cylinders | 4 |
| Aspiration | Natural |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | 302P408 | 302P408 | Amazon eBay |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan NHC-4 has a displacement of 8.15 liters with 4 cylinders.
The Cummins/Onan NHC-4 powers 2 generator set(s), including Cummins/Onan T0DFJ-4R8, Cummins/Onan T0DFJ-9R8.