Peterbilt last year achieved record market share in heavy duty (15.3%), thanks in part to the strength of its newest truck, the Model 589. With its 2023 debut, the 589 took the mantle of Peterbilt’s ...

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

Peterbilt will make powertrains with a TX-12 Pro automated transmission and Paccar MX-13 engine combination an option available to buyers of its 579, 567 and 589 tractors, the Paccar unit said ...

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