The Cummins/Onan QSX15-G8 is a turbocharged with air-to-air charge air cooling engine rated at 1500 rpm. It powers generator sets from Cummins/Onan, including the 450 DFEJ, 500 DFEK and DFE. It holds 83.3 L (22.0 gal) of oil.
Part of the Cummins/Onan QSX15 engine family — 6 variants share parts & fitment.
| Oil capacity | 83.3 L |
|---|---|
| Aspiration | Turbocharged with air-to-air charge air cooling |
| Rated speed | 1500 rpm |
| Part # | Description | Category |
|---|---|---|
| M-4376220 | Upper Gasket Set | gasket |
| M-4376221 | Lower Gasket Set | gasket |
| 3163156 | Service cable for InPower™ | other_service |
| 3822735 | Plastic bead media | other_service |
| 3886301 | InPower™ electronic service tool | other_service |
| 956-0120 | other_service | |
| 956-0220 | other_service | |
| 960-0132 | other_service | |
| 960-0174B | other_service | |
| TB3-5 | Generator Set Control Panel Terminal Block | other_service |
| TB3-6 | Generator Set Control Panel Terminal Block | other_service |
| M-5473087 | Piston Kit | piston_kit |
| M-5484414 | Piston Pin | piston_pin |
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 QSX15-G8 engine has an oil capacity of 83.3 liters.
The Cummins/Onan QSX15-G8 powers 3 generator set(s), including Cummins/Onan 450 DFEJ, Cummins/Onan 500 DFEK, Cummins/Onan DFE.