Used Mack DM688SX Refuse truck for sale. Features: Double Frame, Locking Front Power Divider, Single Exhaust Stack, 31-yard Leach Rear-load Trash Body, Hoist with Kickbar, 3-man Cab Seating, Painted Sun Visor, Stainless Hood Spot Mirrors, Painted Air Cleaner, Front Mount Hydraulic Pump, 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).