the Peterbilt 379 isn’t the quintessential Optimus Prime, if you will. The original design, as seen in the Transformers animated series, was based on a Freightliner FL86 cab over semi-truck.

The ReVolt EREV hybrid electric semi truck promises 40% better fuel economy, electric drive, and 1,200 miles of combined ...

Peterbilt adds the PACCAR TX-12 Pro automated transmission for Models 579, 567, and 589, for vocational and on-highway use.

The Paccar TX-12 Pro transmission now is available with the MX-13 engine in Models 579, 567, and 589 in a new combination for ...