Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Battery | Group Number: CCA (minimum) Cold Soak @ 0° F (-18° C) | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan Diesel Series 4BT3.3G3 is a 3.3 L 4-cylinder turbocharged engine rated at 1500 rpm. It powers generator sets from Cummins/Onan, including the 4BT3.3-G3 and 4BT3.3G3. It holds 7.5 L (2.0 gal) of oil.
Also known as: Cummins Diesel Series 4BT3.3G3
| Oil capacity | 7.5 L |
|---|---|
| Displacement | 3.3 L |
| Cylinders | 4 |
| Aspiration | turbocharged |
| Rated speed | 1500 rpm |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Battery | Group Number: CCA (minimum) Cold Soak @ 0° F (-18° C) | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan Diesel Series 4BT3.3G3 engine has an oil capacity of 7.5 liters.
The Cummins/Onan Diesel Series 4BT3.3G3 has a displacement of 3.3 liters with 4 cylinders.
The Cummins/Onan Diesel Series 4BT3.3G3 powers 2 generator set(s), including Cummins/Onan 4BT3.3-G3, Cummins/Onan 4BT3.3G3.