Kenworth is offering Eaton's 10-speed UltraShift Plus VAS transmission on selected medium-duty trucks for the first time, including the T370, T440 and T470 equipped with the 8.9-liter Paccar PX-9 engine.

The transmission is recommended for construction, refuse, municipal pickup and delivery, and agricultural applications. It provides select Kenworth medium-duty trucks with an alternative to manual or traditional automatic transmissions.

By using an electronic clutch actuation system, with a system that enables quick shifts and clutch engagement regardless of engine RPM. The system automatically selects an appropriate start gear and adapts shifts based on driving environment.

The transmission can handle the maximum torque rating of any medium-duty engine, according to Kenworth and provides more control of engine and transmission functions for automated shifting and vehicle launches.

The UltraShift Plus VAS features Hill Start Aid, creep modes, auto neutral, and engine and clutch over speed protection. The transmission employs grade sensing, weight computation and driver throttle commands for better reliability and performance during launch and shift decisions.

“Kenworth has an excellent partnership with Eaton, and our medium-duty truck customers will benefit from the performance and value of the Eaton UltraShift Plus VAS transmission option for the Kenworth T370, T440 and T470,” said Kurt Swihart, Kenworth marketing director.

To read more about Eaton transmissions, read our "On-Highway Transmission News" here.