Detroit DD15 6 Cylinder 14.8 L Diesel 455 hp Engine, 2018 US EPA Label, Requires Diesel Exhaust Fluid, 19399 Engine hrs, Engine Brake, Detroit DT12-V 12-Speed Automated Transmission, 12500 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 2.47:1 Axle Ratio, 52350.0 lb GVWR, Air Ride Cab, 72 in High Rise Sleeper Cab, Bunk Beds, Aluminum Wheels, 295/75R22.5, Airliner Air Ride Suspension, 232 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks