Detroit DD15 6 Cylinder 14.8 L Diesel 505 hp Engine, 2022 US EPA Label, Requires Diesel Exhaust Fluid, 3647 Engine hrs, Engine Brake, Detroit DT12-0A 12-Speed Automated Transmission, 12350 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 3.08:1 Axle Ratio, 52350.0 lb GVWR, Air Ride Cab, 72 in High Rise Sleeper Cab, Bunk Beds, Aluminum Outer Wheels, 11R22.5, Airliner Air Ride Suspension, 241 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks