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Cummins QSJ8.9G

Engines

Cummins QSJ8.9G natural gas / lpg engine. 8.9L Inline 6, turbocharged. Powers 125-200 kW commercial generators.

Overview#

The Cummins QSJ8.9G is a 8.9-liter, 6-cylinder inline 6 natural gas / lpg engine used in commercial and industrial generator applications in the 125-200 kW class. Turbocharged for reliable power density across standby and prime-rated duty cycles.

This engine powers generators from Cummins, making it one of the more widely deployed prime movers in its power class for the commercial standby market.

Generators using this engine#

Found in these gensets

Generator models that ship with or are commonly paired with the Cummins QSJ8.9G.

Cummins Cummins C125 N6 125 kW liquid-cooled standby generator

Cummins

Cummins C125 N6

125 kW natural gas with full Cummins vertical integration. 100% load in 10 seconds. Single-source warranty.

125 kW standby · Natural Gas · Liquid-cooled

125 kW natural gas standby generator with QSJ8.9G engine. 125 kW standby, PowerCommand 2.3 controls, UL 2200, IBC Seismic, NFPA 110 capable. Quiet Connect RS125 series, weight 3915 lbs.

3-phasecommercial-standbyindustrial-standby
Cummins Cummins C150 N6 150 kW liquid-cooled standby generator

Cummins

Cummins C150 N6

150 kW natural gas with full Cummins vertical integration. 100% load in 10 seconds. No diesel permitting needed.

150 kW standby · Natural Gas / LPG · Liquid-cooled

150 kW natural gas/propane standby generator with Cummins QSJ8.9G 8.9L turbocharged inline-6 engine. PowerCommand control, UL 2200 listed, NFPA 110 Level 1 capable. Wet weight 1,776 kg (3,915 lbs).

EPA Stationary Spark Ignition3-phasecommercial-standbyhospital-non-critical
Cummins Cummins C200 N6 200 kW liquid-cooled standby generator

Cummins

Cummins C200 N6

200 kW natural gas with full Cummins vertical integration. 100% load in 10 seconds. Power Command controller.

200 kW standby · Natural Gas / LPG · Liquid-cooled

200 kW natural gas/propane commercial standby generator. Cummins' flagship gaseous unit with QSJ8.9G engine and PowerCommand 2.3 controller.

EPA Stationary Spark Ignition3-phasecommercialmulti-family

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