The Cummins/Onan QST30-G5 NR2 is a 30.5 L 12-cylinder turbocharged, aftercooled engine rated at 1800 rpm, producing up to 1112 kW. It powers generator sets from Cummins/Onan and MQ Power, including the DQFAA, DQFAD, 1000 kW Containerized Diesel Generator Set and CG1000C2. It holds 132 L (34.9 gal) of oil and 79 L (20.9 gal) of coolant.
Also known as: Cummins QST30-G5 NR2
| Oil capacity | 132.0 L |
|---|---|
| Coolant capacity | 79.0 L |
| Displacement | 30.5 L |
| Cylinders | 12 |
| Aspiration | Turbocharged, Aftercooled |
| Rated speed | 1800 rpm |
| Gross power | 1112 kW |
Shared across brands: Cummins/Onan, MQ Power
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry | — | |||
| Fuel filter | 30 micron Racor ® fuel filter system | — | |||
| Oil filter | Full Pressure 4 Spin-on Full Flow | — | |||
| Battery | 24 VDC | — | |||
| Belt | Belt Driven, Centrifugal | — | |||
| Coolant filter | Not specified | — | |||
| Spark plug | Not specified | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan QST30-G5 NR2 engine has an oil capacity of 132.0 liters.
The Cummins/Onan QST30-G5 NR2 has a displacement of 30.5 liters with 12 cylinders.
The Cummins/Onan QST30-G5 NR2 powers 4 generator set(s), including Cummins/Onan DQFAA, Cummins/Onan DQFAD, MQ Power 1000 kW Containerized Diesel Generator Set, MQ Power CG1000C2.