The Cummins/Onan QSB5 engine line groups 8 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 153-5720 | Battery | battery |
| 8C-3627 | Fuel Filter | fuel_filter |
| 250-0486 | Oil Filter | oil_filter |
| 101-4000 | Gasket | other_service |
| 127-0826 | Battery | other_service |
| 250-0488 | Spark Plug | other_service |
| 8C-3600 | Battery | other_service |
| 8C-3601 | Battery | other_service |
| 8C-3620 | Belt | other_service |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.