2020 Peterbilt 579

2020 Peterbilt 579 This 2020 Peterbilt 579 features a clean white exterior, gray interior, and an UltraLoft double-bunk sleeper for spacious overnight accommodations. Powered by a 455-horsepower PACCAR MX-13 diesel paired with a 12-speed Endurant automated transmission, it has 732,999 miles and rides on Flex Air suspension. An extensive maintenance history includes replacement of cooling-system components, electrical components, tires, steering components, and air-conditioning parts. In July 2026, the truck received a new head gasket along with replacement cylinder-head and injector components sourced from a PACCAR MX-13 with fewer than 300,000 miles. A DEF-system delete was completed in May 2025. The detailed repair history gives buyers a useful picture of the work already performed on this double-bunk sleeper tractor. Specs & Highlights: - 732,999 miles - PACCAR MX-13 diesel engine rated at 455 horsepower - 12-speed Endurant automated transmission - UltraLoft raised-roof double-bunk sleeper - White exterior and gray interior - 6x4 drivetrain with tandem rear axles - Flex Air suspension - Aluminum wheels - August 2025: replacement recap drive tires - December 2025: batteries and alternator replaced - January 2026: water pump replaced - February 2026: steer tires, wheel seals, and kingpins replaced; annual DOT inspection performed - March 2026: radiator, coolant reservoir, and batteries replaced - May 2026: A/C line, coolant hose, and battery cables replaced - July 2026: new head gasket and replacement cylinder head and injectors - Replacement head and injectors sourced from an engine with fewer than 300,000 miles - DEF-system delete completed in May 2025 Located in Athens, AL 35613 For more information, please call 833-265-6113 and mention ID 11178