Peterbilt announces new nat gas powertrain option of Cummins ISX12 G and Eaton’s UltraShift

Jun 4, 2014

The CNG-powered Peterbilt 579

Peterbilt announced this week a new powertrain option for several of its natural gas vehicles that combines the Cummins Westport ISX12 G and the Eaton UltraShift Plus automated transmission.

The powertrain package will be available for its Models 579, 567, 384 and 365. The package works for both CNG- and LNG-powered trucks.

The Eaton UltraShift PLUS is available in the 13-speed MHP and 10-speed LAS series and the 11.9-liter Cummins Westport ISX12 G is available up to 400 horsepower and 1,450 lb.-ft. of torque.

The automated transmission features intelligent shift selection software that optimizes performance and efficiency, as well as tailored shift logic that enhances braking performance.

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