Peterbilt Natural Gas Options

Peterbilt Model 579

Peterbilt has a new powertrain option for the on-highway Model 579 and vocational Model 567, as well as the 384 and 365. It pairs Eaton’s UltraShift Plus automated transmission with the Cummins Westport ISX12 G natural gas engine.

The transmission is available in both the 13-speed MHP and 10-speed LAS versions, while the 11.9-liter ISX12 G comes with up to 400 hp and 1450 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. It can benefit both new and veteran operators through precision shifting that senses and adjusts to grades, weight, and driver throttle commands.

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