Peterbilt said its medium-duty Models 548, 537, and 536 with Pacaar PX-9 engines will be available with Paccar TX-12 and TX-12 Pro automated transmissions.
Paccar TX-12 Pro Automated Transmission Available for Vocational Trucks
The Paccar TX-12 Pro automated transmission is now available on Peterbilt vocational trucks, both the Model 567 and Model 579.