HomeCummins/OnanCummins/Onan QSJ8.9G-G2

Cummins/Onan QSJ8.9G-G2 Generator Set

The Cummins/Onan QSJ8.9G-G2 is a 125 kW NG/propane standby generator set powered by a Cummins/Onan QSJ8.9G engine. It is available at 12 V, single phase-phase and 60 Hz. Starting uses dual battery optional group-850 battery.

125 kW
Standby
8.9 L
Displacement
1
Document types

How to read your Cummins/Onan serial & model number →

Specifications

FuelNG/propane
Frequency60.0 Hz
Standby power125 kW
EmissionsEPA NSPS
ControllerPowerCommand 2.3
AlternatorStamford/AvK UC3D
Voltage options12 V
Phasesingle phase
Battery group850
Battery quantitydual battery optional
Max ambient-45 °C

Engine

Cummins/Onan QSJ8.9G
Displacement8.9 L
AspirationTurbocharged and aftercooled

Common questions

What is the power rating of the Cummins/Onan QSJ8.9G-G2?

The Cummins/Onan QSJ8.9G-G2 is rated 125 kW standby.

What engine does the Cummins/Onan QSJ8.9G-G2 use?

The Cummins/Onan QSJ8.9G-G2 is powered by the Cummins/Onan QSJ8.9G engine.

What fuel does the Cummins/Onan QSJ8.9G-G2 use?

The Cummins/Onan QSJ8.9G-G2 runs on NG/propane.

What alternator does the Cummins/Onan QSJ8.9G-G2 use?

The Cummins/Onan QSJ8.9G-G2 uses a Stamford/AvK UC3D alternator.

Available documents

Spec sheet — 0075811 (Cummins/Onan)