Skip navigation

Westport certifies Eaton UltraShift PLUS

Eaton Corporation’s UltraShift PLUS automated heavy-duty transmissions have been certified for use with the Westport HD 15-liter high-pressure direct-injection liquefied natural gas engine (made by Westport Innovations Inc). This provides a greater range of applications for two-pedal systems (brake and accelerator) with heavy-duty linehaul and heavy-haul applications.

The engines and transmissions, with gross vehicle weight (GVW) ratings up to in excess of 110,000 pounds, are available on Kenworth T800 and Peterbilt 367, 386, and 387 chassis.

Certification covers all makes and models of UltraShift PLUS, which now includes eight platforms and more than 50 different models. UltraShift PLUS transmissions are also certified with major diesel engine manufacturers in North America, including Cummins, Detroit Diesel, Caterpillar, International/Navistar, and Volvo.

All UltraShift PLUS launches and shifts are automated with the use of a new self-adjusting electronic clutch actuator for fast, smooth engagements. All the new transmissions also share a Hill Start Aid feature to prevent rollbacks on grades; an oil level sight glass to easily check fluid levels; six- and eight-bolt power take-off availability at no extra cost; Automatic, Manual, and Low mode selections; as well as a creep feature for improved maneuverability with continuous low-speed control.

For more information, visit

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.