Peterbilt’s first lightweight Paccar MX-11 engine was installed recently in the company’s newest vocational truck, the Model 567, in a set-forward front axle configuration. Peterbilt’s first ...

Peterbilt trucks are a familiar presence on US roads. If you're often driving alongside freight traffic, you'll probably spot them with their bright red oval badges at least a couple of times a day.

Peterbilt service engineer Chadd Christian’s fingers indicate sensors for EGR, turbocharger and humidity. His thumb points to the variable-geometry turbo’s water-cooled electronic controls. The big ...