Used Peterbilt 579 Sleeper for sale. Features: Collision Mitigation System, Espar Heater, 2 Bunks, Refrigerator, Air Ride Seats, Air Ride Cab and Sleeper, Dual Hood-mounted Spot Mirrors, Power Locks and Windows, Dual Heated Moto Mirrors, Engine Block Heater, Shore Power Plug, Body-color-painted Bumper and Chassis Fairings, and remainder of 5-year/500,000 mile Engine and Aftertreatment Warranty, Remainder of 3-year/400,000 mile Chassis Warranty. Coopersburg & Liberty Kenworth has new trucks, used trucks, trailers, and parts for sale. Locations: Coopersburg, PA (near Allentown), Swedesboro, NJ (near Philadelphia), and TRP 068 (Pottstown, PA).