6 Cylinder Ultra Low Sulfur Diesel 455 hp Engine, Engine Coolant Heater, 9804.4 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FR-15210B 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 2.47:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, Aluminum Wheels, 275/80R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 199 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks