Used Peterbilt 579 Sleeper for sale. Features: Air Ride Cab, Espar Heater, Disc Brakes, Stainless Quarter Fenders, Stainless Mudflap Brackets, Hood Spot Mirrors, Sun Visor with Lights, Power Heated Mirrors, Power Locks and Windows, Tilt Steering Column, Leather Air Ride Seats, 2-bed Sleeper, Refrigerator, Air Conditioning, Cruise Control, and remainder of 5-year/600k mile Engine and Aftertreatment 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).