Paccar MX 6 Cylinder Ultra Low Sulfur Diesel Engine, Requires Diesel Exhaust Fluid, 4328.5 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, 13200 lb Front Axle, 40000 lb Rears, Paccar MT40 14x4 Drive Axles, 3.55:1 Axle Ratio, 53200 lb GVWR, Air Ride Cab, 62 in Mid Roof Sleeper Cab, Bunk Heater, Sleeper Air Conditioner, Aluminum Wheels, 295/75R22.5, Airglide Air Ride Suspension, 255 in Wheelbase, Air Sliding 5th Wheel