2021 Peterbilt 579 Day Cab – PACCAR MX-13, 455 HP, 12-Speed Automated

This used Peterbilt 579 day cab is powered by a PACCAR MX-13 engine producing 455 HP and paired with a PACCAR PO-17F112C12 12-speed automated transmission. With 420,500 miles, a 6x4 drivetrain, 2.64 rear axle ratio, and 180-inch wheelbase, this 579 is well equipped for regional hauling and fleet applications.

The truck features Jake brakes, a collision mitigation system, horizontal exhaust, and an air-slide fifth wheel. Dual fuel tanks provide 120 gallons of total capacity, with a 50-gallon left-hand tank and 70-gallon right-hand tank. The chassis is rated at a 52,000-lb GVWR, including a 12,000-lb front axle and 40,000-lb rear axles, and rides on 295/75R22.5 tires.

This Peterbilt 579 offers a practical combination of PACCAR power, automated shifting, safety technology, and day-cab maneuverability for fleets or owner-operators looking for a well-spec'd used Class 8 truck.