The Cummins/Onan QSM11-G4 is a 10.8 L turbocharged and after-cooled engine rated at 1800 rpm. It powers generator sets from Cummins/Onan, MQ Power and Terex, including the C300 D6, DQHAA, DQHAB and EGS2400C3H. It holds 36.72 L (9.7 gal) of oil and 9.5 L (2.5 gal) of coolant.
Part of the Cummins/Onan QSM11 engine family — 4 variants share parts & fitment.
| Oil capacity | 36.72 L |
|---|---|
| Coolant capacity | 9.5 L |
| Displacement | 10.8 L |
| Aspiration | turbocharged and after-cooled |
| Rated speed | 1800 rpm |
Shared across brands: Cummins/Onan, MQ Power, Terex
| Part # | Description | Category |
|---|---|---|
| ES100027 | Distribution Panel Wiring for T360 Series Single Phase Control | distribution_panel_wiring |
| ES100030 | Standard Generator Wiring for T360 Series | generator_wiring |
| A035N852 | Hose, Drain - Bulk (Order by the Foot - 1 Feet Required) | hose |
| ES100039 | Idle-Run Wiring (Cummins) | idle_run_wiring |
| 134890 | T360 Super Quiet Generator | other_service |
| 961-0619 | Generator Set Support | other_service |
| A045Z906 | Isolator, Vibration | other_service |
| A045Z908 | Bracket, Switch | other_service |
| A40-TB1-11 | (COMMON ALARM) | other_service |
| A40-TB1-30 | COMMON ALARM (COM) | other_service |
| A40-TB1-31 | COMMON ALARM (COM) | other_service |
| ES100006 | Overcurrent Relay Wiring | overcurrent_relay_wiring |
| A40-TB1-1 | B+ | positive terminal |
| A40-TB1-12 | RUN RELAY (K11, K12, K13) | run relay |
| A40-TB1-8 | SWITCHED B+ | run relay |
| ES100026 | Three Position Stack Switch Wiring | stack_switch_wiring |
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 QSM11-G4 engine has an oil capacity of 36.72 liters.
The Cummins/Onan QSM11-G4 has a displacement of 10.8 liters.
The Cummins/Onan QSM11-G4 powers 5 generator set(s), including Cummins/Onan C300 D6, Cummins/Onan DQHAA, Cummins/Onan DQHAB, MQ Power EGS2400C3H, Terex T360 Super Quiet Generator.