Paccar Introduces Automated Transmission

By David Lubach24 August 2017

Paccar introduced its own 12-speed automated transmission this week at its technical center in Bellevue, Wash.

Paccar’s new 12-speed automated transmission.

The company claims it is the lightest heavy-duty transmission for on-highway commercial vehicles and said it is designed to complement the Paccar’s MX engines and axles. Kenworth and Peterbilt will begin offering the automated transmission to North American customers in October.

“The PACCAR Automated Transmission is engineered to work seamlessly with PACCAR MX engines and PACCAR axles and provide industry-leading performance,” said Landon Sproull, PACCAR vice president. “Together, PACCAR Powertrain components deliver superior fuel economy, uptime, and driver satisfaction — top priorities for our customers.”

The automated transmission is designed for line-haul applications up to 110,000 lb. gross vehicle weight. It is available for engine ratings up to 510 hp and 1,850 lb.ft. of torque and includes tightly integrated electronic communications with the PACCAR MX engine.

The automated transmission offers what Paccar claims is the best overall gear ratio coverage available providing improved low-speed maneuverability and the transmission is up to 105 lb. lighter than comparable transmissions, savings that customers can use to haul more payload. The 750,000 mile oil change interval is the longest available for line-haul applications, which reduces maintenance costs and increases uptime. 

The transmission includes a differentiated fluid pressure detection system that protects the gears and shafts from low fluid conditions and allows Paccar to offer what it says is industry-leading warranty coverage. Other components include a maintenance-free clutch and an internally routed electrical system to maximize durability. Paccar’s new column-mounted shifter puts gear selection and engine brake controls at the driver’s fingertips for better ergonomics and improved performance.

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