Used Freightliner 122SD Tri Axle Dump Truck for sale. Features: Double Frame, Dual Power Steering Boxes, Full Locking Rears, Dual Exhaust, Air Ride Cab, 18.5 ft. x 70 in. MAC Aluminum Dump Body, Auto Tarper, Air Locking Tailgate, 20,000 lb. Steerable Lift Axle, Power Windows, Power Locks, Tilt Steering Column, Power Heated Mirrors, Air Conditioning, Cruise Control, Stainless Sun Visor, and more. Hundreds of new and used trucks, trailers, and parts for sale at Coopersburg & Liberty Kenworth. Two convenient locations: Coopersburg, PA (near Allentown) and Swedesboro, NJ (near Philadelphia).