Detroit DD15 6 Cylinder 14.8 L Diesel 505 hp Engine, 2020 US EPA Label, Engine Brake, Detroit DT12-1650 OH1 12-Speed Automatic Transmission, Differential Lock, 12350 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 3.08:1 Axle Ratio, 52350 lb GVWR, Air Ride Cab, 58 in High Rise Sleeper Cab, Bunk Beds, Bunk Heater, Aluminum Wheels, 11R22.5, Airliner Air Ride Suspension, 230 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks, Hour Meter Reads 10212