The Cummins/Onan 6BT5.9 engine line groups 6 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 982-0200 | Air Filter | air_filter |
| 3824469 | fuel pump gear puller | fuel_pump |
| DM-3801372 | Gasket Set - 6BT 5.9 | gasket |
| FP-6B59PREM | 6B/6BT5.9 In-Frame Kit w/upper gasket set & oil pan gasket | gasket |
| FP-6B59PREML | 6B/6BT5.9 In-Frame Kit w/upper gasket set & oil pan gasket (late) | gasket |
| FP-IFK6B59PREM | 6B/6BT5.9 In-Frame Kit w/upper gasket set & oil pan gasket | gasket |
| FP-IFK6B59PREML | 6B/6BT5.9 In-Frame Kit w/upper gasket set & oil pan gasket (late) | gasket |
| 3822509 | injector puller | injector |
| 3823276 | injector bore brush | injector |
| DM-3029551 | Fuel Injector - 6BT 5.9 | injector |
| LF3349 | Lube, Full-Flow Spin-On | lube_filter |
| 3377259 | bosch timing tool (ve) | other_service |
| 928-0502B | other_service | |
| 928-0506 | other_service | |
| 960-0504A | other_service | |
| 960-0505 | other_service | |
| 960-0627C | other_service | |
| 960-12 | other_service | |
| 965-0520 | Cooling Fan | other_service |
| DM-3802010 | Main Bearing Set Standard - 4BT 3.9, 6BT 5.9, 6CT 8.3 | other_service |
| FP-3356970 | 6B/6BT5.9 In-Frame Kit (contains FP-3802160 Piston Kit) | other_service |
| FP-3356971 | 6B/6BT5.9 In-Frame Kit (contains FP-3802248 Piston Kit) | other_service |
| GM12641 | Safety/locking agent | other_service |
| GM12657 | Dipstick | other_service |
| GM12676 | Cylinder liner | other_service |
| GM12678 | Screw plug | other_service |
| GM12697 | Torx-head bolt | other_service |
| GM12921 | Hexagon bolt | other_service |
| GM12924 | Rear end cover | other_service |
| GM12936 | Wrapped bearing bush | other_service |
| GM12937 | Wrapped bearing bush | other_service |
| GM12954 | Dipstick | other_service |
| GM12970 | Compression spring | other_service |
| GM13175 | Pipe clamp | other_service |
| TB1-6 | Control box terminal (TB1-6) | other_service |
| TB1-7 | B+ OUTPUT | other_service |
| DM-3805401 | Oil Pump - 6BT 5.9 | pump |
| DM-3805403 | Water Pump - 4BT 3.9, 6BT 5.9 | pump |
| GM12667 | Sealing ring | seal |
| S103 | Selector switch | switch |
| DM-3015282 | Thermostat 180F - 4BT 3.9, 6BT 5.9 | thermostat |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Leads compiled from supplier catalogs across the family’s variants; verify the exact part for your variant and serial number.