On Wednesday both Kenworth and Peterbilt announced the new Endurant 12-speed automated transmission from Eaton Cummins Automated Transmission Technologies is available in specific tractors.
Kenworth’s T680 on-highway flagship and Peterbilt’s Models 579 and 567 are now available with the new transmission, paired with the Cummins X15 Efficiency Series engine.
Introduced by Eaton Cummins Automated Transmission Technologies, the purpose-built Endurant transmission is engineered for seamless integration with the Cummins X15 engine to provide excellent fuel efficiency, performance and low-speed maneuverability. The transmission offers engine ratings up to 510-hp and 1,850 lb.-ft. of torque, and weight savings up to 105 lb. less than competitive automated transmissions.
The Endurant is standard with both OEM’s new column-mounted shifter, putting gear selection and engine brake controls at the driver’s fingertips for better ergonomics and improved performance.
Other key features of the transmission include a cooler-less precision lubrication system with a 750,000 mile lube change, encapsulated sensors and wiring, and standard 8-bolt PTO opening location. The Endurant offers a 5-year/750,000-mile warranty, and a 3-year/350,000-mile clutch warranty.
“The 12-speed Endurant automated transmission is an important technological advancement for the Kenworth T680. Fleets and truck operators will benefit from its light weight, efficiency, reduced maintenance, and driver comfort,” says Patrick Dean, Kenworth chief engineer.
“The Endurant transmission was optimized for the Cummins X15 engine and gives our customers another powertrain option,” adds Peterbilt Chief Engineer Scott Newhouse. “Endurant has a wide range of benefits including its light weight design and longer service intervals. Its integration with the column mounted shifter will make it a top choice for both fleet and owner operator customers.”