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 meets California ARB optional Low NO x standard of 0.02 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.
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