Used Western Star 4900 SA Flat-top Sleeper for sale. Features: Air Ride Cab, Full Locking Rears, Dual Power Steering Boxes, Dual Exhaust Stacks, Stainless Air Cleaners, Hydraulic Heavy Duty Cable Winch, Heated Mirrors, Power Windows, Tilt/Telescopic Steering Column, Leather Air Ride Seats, Stainless Sun Visor, Air Conditioning, Cruise Control, 4-speed Auxiliary Transmission, 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).