Detroit DD13 12.8 L Diesel 410 hp Engine, 2017 US EPA Label, Requires Diesel Exhaust Fluid, Engine Brake, Detroit DT12 12-Speed Automated Transmission, 12000 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 2.47:1 Axle Ratio, 52000 lb GVWR, 295/75R22.5, Airliner Air Ride Suspension, 189 in Wheelbase, Dual Fuel Tanks