October 4, 2012
Cummins Westport has begun development on the ISB6.7 G, a mid-range 6.7-liter natural gas engine. The new engine, expected to be in production by 2015, will be based on the Cummins ISB6.7 diesel engine and will use Cummins Westport's spark-ignited, stoichiometric cooled exhaust gas recirculation technology.