The Cummins/Onan GTA50-G1 is a 50.3 L 16-cylinder turbocharged & aftercooled engine rated at 1800 rpm, producing up to 1153 kW. It powers generator sets from Cummins/Onan, including the GFLA.
Also known as: Cummins GTA50-G1
Part of the Cummins/Onan GTA50 engine family — 2 variants share parts & fitment.
| Displacement | 50.3 L |
|---|---|
| Cylinders | 16 |
| Aspiration | Turbocharged & Aftercooled |
| Rated speed | 1800 rpm |
| Gross power | 1153 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | N/A | — | find | ||
| Fuel filter | N/A | — | find | ||
| Oil filter | Single spin-on canister-combination full flow with bypass | — | find | ||
| Belt | N/A | — | find | ||
| Coolant | N/A | — | |||
| Oil | Cummins Heavy-Duty Engine | 550.0 amps | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan GTA50-G1 has a displacement of 50.3 liters with 16 cylinders.
The Cummins/Onan GTA50-G1 powers 1 generator set(s), including Cummins/Onan GFLA.