The Cummins/Onan QSB5-G5 is a 4.45 L 4-cylinder turbocharged engine. It powers generator sets from Cummins/Onan, including the C100 D2R and C100 D6.
Also known as: QSB5 G5, Cummins QSB5-G5
Part of the Cummins/Onan QSB5 engine family — 6 variants share parts & fitment.
| Displacement | 4.45 L |
|---|---|
| Cylinders | 4 |
| Aspiration | Turbocharged |
How to read your Cummins/Onan engine serial & model number →
| Part # | Description | Category |
|---|---|---|
| 0179-3714 | Air Cleaner Instl | air_filter |
| 8C-3601 | Air Filter | air_filter |
| PI144D1 | Alternator Model | alternator |
| UC274C | Alternator Model | alternator |
| UC274K | Alternator Model | alternator |
| 127-0826 | Battery | battery |
| 153-5720 | Battery | battery |
| 8C-3620 | Belt | belt |
| 8C-3600 | Coolant Filter | coolant_filter |
| 8C-3627 | Fuel Filter | fuel_filter |
| 101-4000 | Gasket | gasket |
| 250-0486 | Oil Filter | oil_filter |
| 0100-3853-01 | Engine-Diesel (4ISBeG1) | other_service |
| 0179-3628 | Radiator Assy | other_service |
| 0179-4344 | Outlet Sockets Box Instl | other_service |
| 0179-4365 | Fuel System Instl | other_service |
| 0179-4466 | Circuit Breaker Assy | other_service |
| 0179-4472 | Heater Instl | other_service |
| 0179-4517 | Skid Assy (XRS) | other_service |
| 0179-4542 | Battery Isolator Assy | other_service |
| 0300-6029 | Accessory Instl | other_service |
| 0338-0000 | Harnesses | other_service |
| 0403-5265-02 | Spacer-Generator (UC274C) | other_service |
| 0403-5835-02 | Skid | other_service |
| 0403-5850-02 | Skid | other_service |
| 0403-5962 | End Cap-Skid | other_service |
| 0403-5966 | End Cap-Skid (Assy) | other_service |
| 0405-8842 | Enclosure | other_service |
| 3666496 | other_service | |
| V2403-M-E3BG | Engine Model | other_service |
| 250-0488 | Spark Plug | spark_plug |
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 QSB5-G5 has a displacement of 4.45 liters with 4 cylinders.
The Cummins/Onan QSB5-G5 powers 2 generator set(s), including Cummins/Onan C100 D2R, Cummins/Onan C100 D6.