Volvo 6 Cylinder 12.8 L Ultra Low Sulfur Diesel 425 hp Engine, 2015 US EPA Label, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Automated Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, Aluminum Wheels, 295/75R22.5 Front Tires, 445/50R22.5 Super Singles Rear Tires, Volvo Air Ride Suspension, 170 in Wheelbase