Paccar PX-6 6 Cylinder 6.7 L Ultra Low Sulfur Diesel 260 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Allison Automatic Transmission, 10000 lb Front Axle, 16000 lb Rears, Dana R20060S Drive Axles, 5.29:1 Axle Ratio, 26000 lb GVWR, Aluminum Wheels, 11R22.5, Air Ride Suspension, 270 in Wheelbase, Liftgate