Paccar MX-13 6 Cylinder 12.9 L Diesel 485 hp Engine, 2016 US EPA Label, Requires Diesel Exhaust Fluid, 20828 Engine hrs, Engine Brake, Eaton Fuller Automated Transmission, Differential Lock, 13200 lb Front Axle, 38000 lb Rears, 51200 lb GVWR, Air Ride Cab, 70 in Mid Roof Sleeper Cab, Dynasys Auxiliary Power Unit, Aluminum Wheels, 275/80R22.5 Front Tires, 275/80R22.5 Rear Tires, Air Ride Suspension, 244 in Wheelbase, Dual Fuel Tanks