CORRECTED -- Eaton has announced that the company’s lineup of manual transmissions are now available as an option on Freightliner chassis equipped with Cummins Westport ISX-12 G heavy-duty natural gas engines.
The Eaton transmissions will debut on Freightliner Cascadia day cabs with Cummins Westport engines that are scheduled to go into production in September of this year.
Based on the Cummins ISX-12 heavy-duty diesel engine platform, the 12-liter ISX-12 G natural gas engines operate exclusively on either compressed natural gas or liquefied natural gas and feature ratings up to 400 horsepower and 1,450 pounds-feet of torque. An optional engine brake is also available.
Corrected 8/14/2013. A previous version of the story referred to the engine as a Westport engine; it is a Cummins Westport engine. Westport Innovations offers a retrofitted version of the Cummins ISX 15 with Westport's high pressure fuel blending system (blended with diesel fuel), available only though Paccar as the GX 15 engine. Cummins Westport is a partnership between Cummins Inc. and Westport Innovations to convert Cummins diesel engines in the 6 - 12 liter space using Cummins' spark ignited technology that allows engines to run on 100% CNG, LNG or RNG fuel.