The Cummins/Onan 6CTA8.3-M is a 8.3 L 6-cylinder turbocharged, aftercooled engine rated at 2500 rpm, producing up to 261 kW. It powers generator sets from Cummins MerCruiser Diesel. It holds 17 L (4.5 gal) of oil.
Part of the Cummins/Onan 6CTA8.3 engine family — 10 variants share parts & fitment.
| Oil capacity | 17.0 L |
|---|---|
| Displacement | 8.3 L |
| Cylinders | 6 |
| Aspiration | Turbocharged, Aftercooled |
| Rated speed | 2500 rpm |
| Gross power | 261 kW |
| Part # | Description | Category |
|---|---|---|
| 503-0446 | Clamp, Hose | clamp |
| 405-5832 | Door, Housing | door |
| 406-0831 | Hinge, Door | hinge |
| 155-3150-04 | Muffler, Critical | muffler |
| 502-0047 | Nipple, Pipe (1/4) | nipple |
| 928-0502B | other_service | |
| 928-0506 | other_service | |
| 960-0504A | other_service | |
| 960-0505 | other_service | |
| 960-12 | other_service | |
| 405-5908 | Panel, Side - Radiator Housing | panel |
| 405-5917 | Panel, End - Roof | panel |
| 155-3164-01 | Pipe, Exhaust | pipe |
| 405-5744 | Post, Housing - Center | post |
| 405-5916 | Post, Corner - Housing | post |
| 821-6003-02 | Screw, Cap - Hex Head | screw |
| 526-0451 | Washer, Flat - Stainless Steel (M8) | washer |
| 319-2653 | Window, Control (If Equipped) | window |
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 6CTA8.3-M engine has an oil capacity of 17.0 liters.
The Cummins/Onan 6CTA8.3-M has a displacement of 8.3 liters with 6 cylinders.
The Cummins/Onan 6CTA8.3-M powers 1 generator set(s), including Cummins MerCruiser Diesel 6CTA8.3-M.