Cummins Westport it has received certifications from both the U.S. Environmental Protection Agency (EPA) and Air Resources Board (ARB) in California for its new natural gas engine.
The new engine (ISX12N) meets California ARB optional Low NOx standard of 0.02 g/bhp-hr, a 90 percent reduction from engines operating at the current EPA NOx limit of 0.2 g/bhp-hr, and it also meets 2017 EPA greenhouse gas emission (GHG) requirements, the company’s statement reads.
It is the first Class 8 truck engine for larger heavy-duty vehicles to certify to the 0.02 g/bhp-hr optional standard, providing the trucking industry with a near-zero emissions solution today.
Based on the ISX12 G, first introduced in 2013, the ISX12N natural gas engine will be available with ratings from 320 to 400 hp and up to 1,450 lb-ft. of peak torque. It is designed for linehaul, regional haul, refuse, and vocational trucks, as well as motorcoach and commuter buses.
All CWI engines can run on compressed natural gas (CNG), liquefied natural gas (LNG), or renewable natural gas (RNG) as a fuel. Production will begin in February of 2018, CWI said.