Volvo D13H455 6 Cylinder 12.8 L Diesel 455 hp Engine, 2013 US EPA Label, Requires Diesel Exhaust Fluid, 25648 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Volvo AT2612D 12-Speed Automated Transmission, 13200 lb Front Axle, 38000 lb Rears, Meritor MT-40-14X Drive Axles, 2.47:1 Axle Ratio, 51200 lb GVWR, Air Ride Cab, 77 in Mid Roof Sleeper Cab, Bunk Beds, Thermo King Auxiliary Power Unit, Aluminum Wheels, 275/80R22.5, Air Assist Front Suspension, Air Ride Suspension, 232 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks