Paccar MX-13 12.9 L Diesel 455 hp Engine, 2015 US EPA Label, CARB Compliant, Requires Diesel Exhaust Fluid, Engine Brake, Automatic Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, Aluminum Wheels, 295/75R22.5, Paccar Air Ride Suspension, 213 in Wheelbase, 119 in Cab to Axle, 250 in Cab to End of Frame