Paccar MX-13 6 Cylinder 12.9 L Diesel 455 hp Engine, 2020 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Power Windows, Eaton Fuller Automated Transmission, Double Differential Locks, 13200 lb Front Axle, 40000 lb Rears, 3.36:1 Axle Ratio, 53200 lb GVWR, Air Ride Cab, Aluminum Wheels, 11R22.5, Airglide Air Ride Suspension, 191 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel