Cummins Westport Inc. is introducing the 2016 ISB6.7 G, a 6.7-liter MidRange, factory-built, dedicated natural gas engine, to the Type C School Bus market at the North American School Bus Show - STN Expo Conference and Trade Show July 25-28 in Reno.
The ISB6.7 G natural gas engine is based on the Cummins ISB6.7 diesel engine platform. The ISB6.7 G is fueled by compressed natural gas (CNG), liquefied natural gas (LNG) or renewable natural gas (RNG), utilizing Cummins Westport's spark-ignited, stoichiometric combustion with cooled Exhaust Gas Recirculation (SEGR) technology. Currently in field trials, the ISB6.7 G will be in full production by mid-2016.
Preliminary specifications include a range of ratings up to 260 hp and 660 lb-ft torque, and automatic transmission capability, to meet customer and original equipment manufacturer (OEM) requirements. The ISB6.7 G will be manufactured at the Cummins Rocky Mount Engine Plant in Whitakers, N.C.
"We are pleased to display the ISB6.7 G to pupil transportation professionals from across the United States and worldwide here at the STN Expo," said Rob Neitzke, president of Cummins Westport. "The ISB6.7 G is the natural choice for Type C School Bus customers desiring clean, quiet and safe operations with diesel-like power and performance."
The ISB6.7 G will be certified at launch to meet the U.S. Environmental Protection Agency (EPA) and California Air Resources Board (ARB) emissions standards of 0.20 g/bhp-hr nitrogen oxides (NOx) and 0.01 g/bhp-hr particulate matter (PM), and 2017 U.S. greenhouse gas (GHG) and fuel-economy regulations.
