Detroit DD15 6 Cylinder 14.8 L Ultra Low Sulfur Diesel 505 hp Engine, 2019 US EPA Label, Requires Diesel Exhaust Fluid, 7858 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Detroit DD12-1750 12-Speed Automated Transmission, 12350 lb Front Axle, 40000 lb Rears, Meritor MP-40-14X4 Drive Axles, 2.15:1 Axle Ratio, Air Ride Cab, 70 in High Rise Sleeper Cab, Bunk Beds, Thermo King TriPac Auxiliary Power Unit, Aluminum Wheels, 11R22.5 Front Tires, 445/50R22.5 Super Singles Rear Tires, Air Ride Suspension, 227 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks