Cummins ISX15 6 Cylinder 15.0 L Diesel 600 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, 25690 Engine hrs, Engine Brake, Eaton Fuller RTLO-20918B 18-Speed Manual Transmission, Double Differential Locks, 13200 lb Front Axle, 46000 lb Rears, Dana D46-170 Drive Axles, 4.10:1 Axle Ratio, 59200.0 lb GVWR, Air Ride Cab, 62 in Mid Roof Sleeper Cab, Aluminum Wheels, 11R24.5, Neway Air Ride Suspension, 259 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel, Head ...