Kenworth Truck Co. has announced its T800 Liquefied Natural Gas (LNG) trucks are now available for factory order.

Equipped with a Westport Innovations LNG fuel system and Westport GX 15-liter engine, which provides up to 450 hp and 1,650 lb.-ft. of torque, the tractor meets U.S. EPA and California Air Resources Board (CARB) emissions certification standards, Kenworth said. The GX 15 liter is based on the Cummins ISX 15-liter diesel engine.

"Customers who purchase Kenworth T800 LNG trucks make a strong commitment towards a better environment, and can also benefit from fuel cost savings, tax credits, state air quality grants and lower regulatory fees," said Andy Douglas, national sales manager for specialty markets.

With a stated operating range of 300 to 500 mi., the trucks reduce nitrogen oxide and greenhouse gas emissions an estimated 33 and 20%, respectively, compared to a diesel-fueled truck. There is a dash-mounted display to monitor the fuel level of the vehicle, which is available in day cab, extended day cab or 38-in. AeroCab sleeper configurations.

Under the American Recovery and Reinvestment Act, the trucks may qualify for Diesel Emissions Reduction Act grants as well as for state or local emissions tax credits. They may also qualify for up to $28,800 in IRS tax credits, according to Kenworth.