Used Mack CTP713B Tri Axle Dump Truck for sale. Features: Double Frame, Dual Power Steering Boxes, Locking Front Power Divider, 20,000 lb. Steerable Hendrickson Lift Axle, 17.5 ft. x 48 in. Steel Dump Body, Coal Chute, Auto Tarper, Painted Sun Visor, Stainless Heated Mirrors, Power Passenger Window, Tilt Steering Column, Air Conditioning, Cruise Control, Single Exhaust Stack, and more. 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).