Eaton/Cummins Endurant 12-speed AMT now available on all major U.S. truck brands

Eaton Cummins Endurant 12-speed automated manual transmission

The Endurant HD 12-speed automated manual transmission (AMT) is now available at all major North American truck manufacturers, including International, Freightliner, Volvo, Peterbilt and Kenworth.

The first product of an Eaton/Cummins joint venture, the 12-speed AMT was initially released in 2017 on select Paccar trucks. Over the last few years it has slowly spread across the industry, most recently becoming standard equipment on International on-highway trucks.

AMTs are bred from a manual gearbox. Even though the process of shifting is automated, the shift pattern isn’t changed. The first “purpose built” heavy-duty automated transmission on the market when it debuted, the Endurant features torque ratings of up to 1,850 lb.-ft. and 510 maximum horsepower.

Eaton touts the Endurant HD as offering a number of advantages over competing heavy-duty automated transmissions, including:

  • Industry-exclusive transmission fluid pressure sensor
  • Longest maintenance interval
  • Best overall ratio coverage for low-speed maneuverability and downspeeding