Peterbilt is taking orders for two of its vocational and aerodynamic vehicles powered by compressed and liquefied natural gas (NG). The Model 365 and Model 384 will be offered with the Cummins Westport ISL G engine as a factory option.

The ISL G sports a 320-hp rating with 1000 lb ft of torque. Based on the Cummins ISL diesel engine with cooled EGR, it’s specifically designed for alternative fuels and offers similar horsepower, torque, and efficiency as the base diesel it replaces. The engine can be fuelled by either compressed natural gas (CNG) or liquefied natural gas (LNG) and is certified to the toughest emissions standards, meeting U.S. EPA and CARB 2010 emissions standards today.

The Peterbilt Model 365, for vocational applications like cement mixers, has a 115-in. BBC and is available in both set-forward and set-back axle configurations.
 
The ISL G powered Model 384 pictured here provides an aerodynamic platform that’s been recognized as fuel efficient and environmentally-friendly by the EPA’s SmartWay program.