Peterbilt last year achieved record market share in heavy duty (15.3%), thanks in part to the strength of its newest 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.

579, and 589 Peterbilt truck models. Peterbilt also uses the Cummins X15 in the model 589, which replaced the 389 for the ...