The Cummins/Onan 6BTA series is a 5.88 L 6-cylinder turbo charged engine rated at 2800 rpm. It powers generator sets from Cummins/Onan, including the C135 D6 and C150 D5. It holds 31 L (8.2 gal) of oil.
Also known as: Cummins 6BTA series
| Oil capacity | 31.0 L |
|---|---|
| Displacement | 5.88 L |
| Cylinders | 6 |
| Aspiration | Turbo Charged |
| Rated speed | 2800 rpm |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Heavy Duty air filter | — | |||
| Fuel filter | Spin on fuel filters with water separator | — | |||
| Oil filter | — | ||||
| Battery | — | ||||
| Belt | — | ||||
| Coolant | 9.9 l | — | |||
| Oil | 16.4 l | — | |||
| Spark plug | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan 6BTA series engine has an oil capacity of 31.0 liters.
The Cummins/Onan 6BTA series has a displacement of 5.88 liters with 6 cylinders.
The Cummins/Onan 6BTA series powers 2 generator set(s), including Cummins/Onan C135 D6, Cummins/Onan C150 D5.