The Cummins/Onan 6BTA5.9-G6 is a 5.88 L 6-cylinder turbocharged engine rated at 1500 rpm. It powers generator sets from Cummins/Onan, including the C110D6B and C90D6B. It holds 100 L (26.4 gal) of oil and 100 L (26.4 gal) of coolant.
Also known as: Cummins 6BTA5.9-G6
Part of the Cummins/Onan 6BTA5.9 engine family — 10 variants share parts & fitment.
| Oil capacity | 100.0 L |
|---|---|
| Coolant capacity | 100.0 L |
| Displacement | 5.88 L |
| Cylinders | 6 |
| Aspiration | Turbocharged |
| Rated speed | 1500 rpm |
How to read your Cummins/Onan engine serial & model number →
| Part # | Description | Category |
|---|---|---|
| 3824469 | fuel pump gear puller | fuel_pump |
| 3822509 | injector puller | injector |
| 3823276 | injector bore brush | injector |
| 3377259 | bosch timing tool (ve) | other_service |
| 3666496 | other_service |
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 6BTA5.9-G6 engine has an oil capacity of 100.0 liters.
The Cummins/Onan 6BTA5.9-G6 has a displacement of 5.88 liters with 6 cylinders.
The Cummins/Onan 6BTA5.9-G6 powers 2 generator set(s), including Cummins/Onan C110D6B, Cummins/Onan C90D6B.