Used Peterbilt 579 sleeper for sale. Features: Air Ride Cab, Espar Heater, Stainless Hood Spot Mirrors, Painted Sun Visor with Lights, Power Heated Mirrors, Power Locks and Windows, Tilt Steering Column, Air Ride Seats, 2-bed Bunk, Refrigerator, Collision Mitigation System, Air Conditioning, Cruise Control, and more. Hundreds of new and used trucks, trailers, and parts for sale at Coopersburg & Liberty Kenworth. Three convenient locations: Coopersburg, PA (near Allentown), Swedesboro, NJ (near Philadelphia), and TRP Parts (Pottstown, PA).