Used Peterbilt 389 Tri Axle Dump Truck for sale. Features: Double Frame, Full Locking Rears, Dual Power Steering Boxes, 20,000 lb. Ridewell Non-Steerable Lift Axle, 20 ft. x 76 in. Aluminum Morocco Dump Body, Slide Auto Tarper, Single Exhaust Stack, Heated Body Option, Stainless Air Cleaners, Stainless Power Mirrors, Power Windows, Leather Seats, Stainless Sun Visor, Air Conditioning, Cruise Control, and more. Coopersburg Kenworth has a huge selection of new and used trucks. We also stock used trailers, new and used parts, and have a full service department and body shop.