Cummins ISX15 400ST 6 Cylinder 15 L Diesel 400 hp Engine, 2013 US EPA Label, Requires Diesel Exhaust Fluid, 17257 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRO-16210C 10-Speed Manual Transmission, 12000 lb Front Axle, 38000 lb Rears, Dana D404/405 Drive Axles, 3.42:1 Axle Ratio, 50000 lb GVWR, 11R22.5, Air Ride Suspension, 186 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks