Paccar transmission now available with MX-11 engine on Kenworth T680

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Updated Mar 19, 2018

Kenworth on Wednesday announced is was making the Paccar Automated Transmission available for order on its T680 equipped with the MX-11 engine.

Previously, the Eaton Cummins engineered transmission was available matched only to an MX-13.

Kurt Swihart, Kenworth marketing director, says the lightweight transmission, which is 105 pounds lighter than comparable models, is a good match for the MX-11, which is 400 pounds lighter than 13-liter engines.

“The proprietary Paccar Powertrain, which includes Paccar’s 10.8-liter MX-11 engine, 12-speed transmission and 40,000-pound tandem rear axle, provides outstanding performance through weight savings, increased fuel efficiency and enhanced driveability for Kenworth T680s operating in linehaul and regional haul applications,” he says.

The Paccar Transmission is paired with Kenworth’s new column-mounted shifter, putting gear selection and engine brake controls at the driver’s fingertips for better ergonomics and improved performance. The shifter position on the steering wheel column also frees up dash space by eliminating engine brake control switches.

Jason Cannon has written about trucking and transportation for more than a decade and serves as Chief Editor of Commercial Carrier Journal. A Class A CDL holder, Jason is a graduate of the Porsche Sport Driving School, an honorary Duckmaster at The Peabody in Memphis, Tennessee, and a purple belt in Brazilian jiu jitsu. Reach him at [email protected].