Volvo D13 6 Cylinder 12.8 L Diesel 425 hp Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Automated Transmission, 12000 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 2.47:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, Aluminum Wheels, 295/75R22.5 Front Tires, 445/50R22.5 Super Singles Rear Tires, Air Ride Suspension, 178 in Wheelbase, Dual Fuel Tanks