Paccar MX-13 6 Cylinder 12.9 L Diesel 455 hp Engine, 2013 US EPA Label, Requires Diesel Exhaust Fluid, 24292 Engine hrs, Engine Brake, Eaton Fuller FO-16E310C-LAS Automated Transmission, Differential Lock, 12350 lb Front Axle, 40000 lb Rears, Spicer DSP40 Drive Axles, 3.36:1 Axle Ratio, 52350 lb GVWR, 72 in High Rise Sleeper Cab, Bunk Beds, Aluminum Front Wheels, 295/75R22.5, Air Ride Suspension, 234 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks