Mack MP7 6 Cylinder 10.8 L Ultra Low Sulfur Diesel 405 hp Engine, 2014 US EPA Label, Requires Diesel Exhaust Fluid, Engine Brake, Mack Mdrive Automated Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000.0 lb GVWR, Aluminum Wheels, 275/80R22.5, Air Ride Suspension, 230 in Wheelbase, PTO, Auto Lube, Dual Fuel Tanks