Cummins Westport‘s L9N and B6.7N natural gas engines received U.S. Environmental Protection Agency (EPA) and California Air Resources Board (CARB) certifications for 2018, the company announced ...
Kenworth is adding the Cummins Westport L9N near zero NOx emissions natural gas engine as an option for its T680, T880 and T880S trucks. The L9N engine is certified to the California Air Resources ...
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