Dale Ziegler Jr. spent nine days with his father installing aftermarket accessories on his 2024 Peterbilt 579. The rig is powered by Paccar's MX-13 engine with a 12-speed automated manual transmission ...
Peterbilt Motors Co. has unveiled a restyled version of its Model 579 flagship on-highway truck that offers a 7% fuel economy improvement compared with the truck it replaces, which was launched in ...
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