Cat C15 6 Cylinder Diesel Engine, 2008 US EPA Label, 4999 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRO-18210C 10-Speed Manual Transmission, 12000 lb Front Axle, 38000 lb Rears, Meritor RR20-145 Drive Axles, 3.42:1 Axle Ratio, 50000 lb GVWR, Air Ride Cab, 70 in Mid Roof Sleeper Cab, Bunk Beds, Aluminum Wheels, 295/75R22.5, Flex Air Air Ride Suspension, 275 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks