The Cummins/Onan GTA855G1 is a 14 L spark ignited engine rated at 1800 rpm, producing up to 218 kW. It powers generator sets from Cummins/Onan, including the GFBA. It holds 97 L (25.6 gal) of coolant.
Also known as: Cummins GTA855G1
| Coolant capacity | 97.0 L |
|---|---|
| Displacement | 14.0 L |
| Aspiration | Spark ignited |
| Rated speed | 1800 rpm |
| Gross power | 218 kW |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Single spin-on canister-combination full flow with bypass | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | Dry Processed Natural Gas | 905 BTU per standard cubic foot lower heating value | Running pressure to carburetor (after regulation) 5-7 in H2O (127-177 mm H2O); running pressure to engine mounted regulator 10-20 in H2O (254-508 mm H2O); minimum gas supply pipe size @ engine 2.0 in (50.8 mm); gas supply filter pressure rating 100 PSI (690 kPa). Propane (HD-5) also listed applicable at 8.5:1 compression. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
The Cummins/Onan GTA855G1 has a displacement of 14.0 liters.
The Cummins/Onan GTA855G1 powers 1 generator set(s), including Cummins/Onan GFBA.