The availability of the new Cummins Westport ISX12 G natural gas engine has been announced by Peterbilt Motors Company, which will offer the Environmental Protection Agency (EPA) and California Air Resources Board (ARB) certified engine beginning in August.  Based on the Cummins ISX12 diesel, the ISX12 G will be available in a maximum rating of 400 HP and 1,450-lb/ft of torque.

“With growing demand for natural gas engines, we are pleased to add the Cummins ISX12 G to our natural gas lineup,” says Bill Kozek, Peterbilt general manager and PACCAR vice president. “The pairing of the dedicated natural gas engine with Peterbilt provides customers exceptional fuel economy with an environmentally-friendly, domestically-sourced fuel that helps lower operating costs.”