Cummins submits third engine model to EPA
Engine maker Cummins Inc. has submitted its third engine platform, the 11-liter ISM, for certification under Environmental Protection Agency's (EPA) new diesel emission standards that go into effect on October 1. To date, Cummins' heavy-duty ISX and medium-duty ISB trucks engines have been certified to the new EPA 2.5 gram NOx+NMHC standard. The ISM engine, which produces between 280 hp to 385 hp,