Cummins Westport B6.7N natural gas engine receives near zero emissions certifications; full NG engine portfolio now certified near zero
Green Car Congress
JANUARY 10, 2020
natural gas engine. Like the Cummins Westport ISX12N and L9N engines, the B6.7N g/bhp-hr, a 90% reduction from engines operating at the current EPA NO x limit of 0.2 natural gas engine is available with ratings from 200 to 240 hp and up to 560 lb-ft. Cummins Westport Inc.