Mack MP7 6 Cylinder Ultra Low Sulfur Diesel Engine, Requires Diesel Exhaust Fluid, 7820 Engine hrs, Allison 3000 6-Speed Automatic Transmission, 20000 lb Front Axle, 46000 lb Rears, 66000.0 lb GVWR, 315/80R22.5 Front Tires, 315/80R22.5 Rear Tires, Rubber Suspension, 220 in Wheelbase, McNeilus Collection Body