Freightliner Trucks has announced that the Cummins Westport ISX12 G heavy-duty natural gas engine will be available as a factory-installed option for the Freightliner 114SD severe duty truck model in 2015.

The 114SD-ISX12 G combination will be ideal for the demanding jobs that the 114SD is designed for, such as mixer, crane and sewer vac, according to the company. The 12L ISX12 G heavy-duty natural gas engine features ratings of up to 400 hp and 1,450-lb-ft torque, and operates on compressed natural gas (CNG) or liquefied natural gas (LNG). Factory-installed back-of-cab mounted CNG tanks are available in 60 and 75 diesel gallon equivalent (DGE) configurations.

The 114SD has been available with natural gas with the 9L Cummins Westport ISL G engine since 2011. With the upcoming availability of the ISX12 G, fleets can get the horsepower and torque ratings they need to meet the toughest of applications.

“The 114SD, when paired with the Cummins Westport ISX12 G heavy-duty natural gas engine, will provide our vocational customers with another green option for their toughest jobs,” said Mary Aufdemberg, director of product marketing for Freightliner Trucks. “Our entire natural gas product line – from the 114SD to the M2 112 and Cascadia 113 – is not only environmentally friendly, but durable, productive and powerful.”

Built on Freightliner’s severe duty platform and designed for a variety of applications, the versatile 114SD features a chassis engineered for ease of body upfit and is available with a wide range of vocational rear suspensions and frame options up to 4.4 million RBM. A heavy-duty frame, steel reinforced aluminum cab and flexible specs make the 114SD ideal for the toughest jobs, according to Freightliner.

Freightliner said its commitment to green technologies is part of parent company Daimler AG’s global “Shaping Future Transportation” initiative. Launched in 2007, the initiative is focused on reducing criteria pollutants, carbon dioxide and fuel consumption through the utilization of clean, efficient drive systems including clean diesel and alternative fuels.