The Cummins/Onan 6CTA8.3 engine line groups 10 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 140-2241 | Element, Air Cleaner | air_filter |
| 140-2252 | Secondary (Inner) Air Cleaner Element | air_filter |
| 3911560 | Belt, Drive - Alternator | belt |
| 3911571 | Belt, Drive - Fan and Alternator | belt |
| 130-3536 | Filter, Water - Service | coolant_filter |
| 130-3539 | Filter, Water - Pre-Charging | coolant_filter |
| 149-2250 | Filter, Fuel - Primary | fuel_filter |
| 149-2251 | Filter, Fuel - Secondary | fuel_filter |
| 102-1147 | Gasket, Drain - Oil Pan | gasket |
| 501-0441 | Line, Fuel - Flex (Fuel In) | hose |
| 501-0480 | Line, Fuel - Flex (Fuel Out) | hose |
| 503-1195 | Hose (3/4"ID x 24"LG) | hose |
| 503-1379-01 | Hose, Radiator | hose |
| 503-1595 | Hose | hose |
| 503-1599 | Hose, Radiator | hose |
| 122-0756 | Element - Oil Filter | oil_filter |
| 509-0266-02 | O-Ring | seal |
| 150-0956 | COVER, FLYWHEEL GUARD | sensor |
| 150-2201 | Sensor, Speed | sensor |
| 193-0244 | Sender, Pressure - Oil | sensor |
| 193-0322 | Sender, Level - Coolant | sensor |
| 193-0353 | Sender, Temperature - Oil | sensor |
| 193-0375 | Sender, Temperature - Engine Coolant | sensor |
| 309-0269 | Air Cleaner (Includes Element) - Standard | sensor |
| 309-0272 | Air Cleaner - Heavy Duty (10" Inlet Tube) | sensor |
| 309-0553 | Switch, Thermostatic - Engine Coolant Temp, Pre-Alarm | sensor |
| 309-0554 | Switch, Thermostatic - Engine Coolant Temp | sensor |
| 309-0555 | Switch, Thermostatic | sensor |
| 309-0561 | Switch, Pressure - Oil, Shutdown | sensor |
| 309-0128 | Thermostat - Adjustable | thermostat |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
This engine family also powers 16 generator set(s) on Facts About Generators.