Every Alternative.

Natural Gas Engines.

Cummins Westport integrates robust diesel components into heavy-duty engines specifically designed for alternative fuels to offer performance, fuel economy, and quiet & clean operation. The ISL G meets U.S. 2010 emissions standards with maintenance-free aftertreatment.

Low emissions, economic benefits, reliable performance—you can depend on Cummins Westport.

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ISL G

8.9 L, 250–320 hp
660–1,000 lb-ft torque
Meets US EPA & CARB 2010
Meets EURO V EEV
CNG / LNG / Biomethane
Three-Way Catalyst aftertreatment
Qualifies for tax incentives