The Cummins/Onan GTA14 is a 14 L aftercooled turbocharged engine. It powers generator sets from Cnge, including the GTA14 qi 20 NA.
Also known as: Cummins Natural Gas Engines, Inc. GTA14
Part of the Cummins/Onan GTA14 engine family — 3 variants share parts & fitment.
| Displacement | 14.0 L |
|---|---|
| Aspiration | Aftercooled Turbocharged |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 750 hr | find | ||
| Fuel filter | — | 750 hr | find | ||
| Oil filter | — | 750 hr | find | ||
| Belt | — | 750 hr | find | ||
| Coolant | — | 6000 hr | |||
| Coolant filter | Fleetguard™ DCA4™ Water Filter Element. | — | 500 hr | find | |
| Oil | 36.0 litres | — | 750 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| 3822524 | Use on v-belts ( 3/8 to 7/8) and v-ribbed belts with 5 ribs or less. | belt |
| 3822525 | Use on v-beits larger than 7/8 in. and v-ribbed belts with 6 or more ribs. | belt |
| LF750 | Bypass Filter, 750 in3 | bypass_filter |
| LF3000 | Lube, Spin-On | oil_filter |
| 3376592 | Inch Pound Torque Wrench | other_service |
| 7-19 | Spark PLUG | spark_plug |
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 GTA14 has a displacement of 14.0 liters.
The Cummins/Onan GTA14 powers 1 generator set(s), including Cnge GTA14 qi 20 NA.
The Cummins/Onan GTA14 oil change interval is every 750 hours.