Moving up in the PACCAR line takes us to the MX-11, which is used in Peterbilt model 567 and 579 trucks. This 10.8-liter engine can put out as much as 430 horsepower and 1,650 pound-feet of torque.

Peterbilt has introduced two new heavy-duty battery-electric vehicles. The new models are the OEM’s next-generation Model 579EV and the all-new Model 567EV. Peterbilt said the Model 567EV is the ...

Peterbilt Motors Co. on Friday, Oct. 21, unveiled new design enhancements for medium-duty Models 210 and 220 cabovers in the Class 6 and Class 7 markets.

There are two engine brands that power Peterbilt trucks: PACCAR and Cummins. The PACCAR engines include MX-13, MX-11, PX-9, and PX-7, while the Cummins models are limited to X15, ISX12N, L9N, and ...

That's exactly the kind of thinking that went into Peterbilt Motors Co.'s new Model 579 Ultraloft integrated sleeper on-highway truck, which the company designed to top the industry in offering ...

The Peterbilt Model 352 cabover tractor was such an iconic design that in an unusual departure from its numeric-based identification system, the company actually gave it a name. It remains ...

The Denton, Texas, original equipment manufacturer said Oct. 27 that Prime ordered 900 Peterbilt Model 579s, all with Paccar MX-13 engines, for one of the Springfield, Missouri, carrier’s ...

Peterbilt is retiring its Model 389, a truck that has carried the torch for the glory days of trucking for 17 years. The Model 389 r eplaced 379 in 2006 with redesigned headlamps fenders and trim ...

As Skoog explained, Peterbilt had a very practical reason for the redesign: The Model 389 had been the last truck rolling off the line that did not have the wider, modern 2.1-meter cab.