An independent, third-party study on the Cummins Westport ISX12N 400 hp natural gas engine recently demonstrated that the engine meets and exceeds California Air Resources Board’s (CARB) optional Low NOx standard of 0.02 g/bhp-hr.
12-Liter Natural Gas Engine Made Optional on 3 Kenworth Trucks
The Kenworth T680 on-highway flagship truck and T880 and T880S vocational trucks are now available for order with the Cummins Westport ISX12N near zero NOx emissions natural gas engine.