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Peterbilt, Kenworth Offer Eaton’s 12-Speed Endurant Transmission

October 04, 2017

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Eaton's Endurant 12-speed automated transmission. Photo: Eaton
Eaton's Endurant 12-speed automated transmission. Photo: Eaton

Eaton’s recently released 12-Speed Endurant automated transmission, developed in a joint venture with Cummins, will be offered on major truck models from both Peterbilt and Kenworth.

Peterbilt announced the transmission’s availability for its Model 579 and 567, and Kenworth announced that it would be offered on the T680. Introduced by Eaton Cummins Automated Transmission Technologies, the purpose-built Endurant transmission was engineered for integration with the Cummins X15 engine to provide improved fuel efficiency, performance, and low-speed maneuverability. The transmission offers engine ratings up to 510 horsepower and 1,850 lb-ft of torque, and weight savings up to 105 pounds less than competitive automated transmissions, according to Eaton.

The Endurant is standard with the Paccar column-mounted shifter, putting gear selection and engine brake controls at the driver’s fingertips for better ergonomics and improved performance.

“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,” said Patrick Dean, Kenworth chief engineer.

Other key features include a cooler-free precision lubrication system with a 750,000-mile lube change interval, encapsulated sensors and wiring, and a standard eight-bolt PTO opening location. The Endurant offers a 5-year/750,000-mile warranty and a 3-year/350,000-mile clutch warranty.

“Endurant has a wide range of benefits including its lightweight design and longer service intervals,” said Scott Newhouse, Peterbilt’s chief engineer. “Its integration with the column mounted shifter will make it a top choice for both fleet and owner-operator customers.”

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