Paccar PX-7 6 Cylinder 6.7 L Diesel 300 hp Engine, 2016 US EPA Label, Requires Diesel Exhaust Fluid, Engine Brake, Automatic Transmission, 10000 lb Front Axle, 23000 lb Rears, 33000.0 lb GVWR, 11R22.5, Spring Suspension, 190 in Wheelbase, 120 in Cab to Axle, 210 in Cab to End of Frame