Used 2019 Peterbilt 579

This 2019 Peterbilt 579 delivers the perfect balance of power, reliability, and driver comfort. Under the hood, it is equipped with the legendary Cummins X15 engine producing 450 horsepower, paired to an Eaton Fuller RTLO18918B 18-speed transmission. With just over 508,000 miles, this truck is ready to keep running strong. The drivetrain is supported by a Dana Spicer D40-155 rear axle with a 2.93 ratio riding on Flex Air suspension, while the 14,600-pound front axle adds strength and stability. With a wheelbase of 240 inches, this Peterbilt is spec’d to handle the road with ease. Inside, the cab is designed around the driver with a 78-inch high roof sleeper. It features a single bunk, Bendix collision mitigation with Wingman Fusion, and premium ergonomics that make long hauls more comfortable and efficient. The sleeper and cab combine practicality with comfort, offering the right balance of work-ready durability and a home-away-from-home feel. On the outside, the truck is finished in a sharp blue and gray paint scheme that stands out on the road. Cab extenders, roof fairings, air cleaner lights, and chicken lights add both aerodynamic efficiency and classic Peterbilt style. The aluminum wheels and fixed fifth wheel complete the professional appearance, while the clean frame rails and polished accents reflect the care and maintenance history of this fleet-owned unit. Tires are set up with 22.5 low profiles all around. This truck has had an excellent maintenance program, so you can buy with confidence knowing it has been fleet cared for. This Peterbilt 579 is work-ready today and stands as a strong investment for any operator or fleet.