Cummins ISX12 6 Cylinder 12.9 L Ultra Low Sulfur Diesel 425 hp Engine, 2013 US EPA Label, 13620.6 Engine hrs, Engine Brake, Eaton Fuller Manual Transmission, 18739 lb Front Axle, 23000 lb Rears, 41740 lb GVWR, 385/65R22.5 Front Tires, 11R22.5 Rear Tires, Dual Steering Boxes, Air Trac Air Ride Suspension, 222 in Wheelbase, Dual PTO, 2014 Patts fabrication 360 gal Steel Tank, Viking PTO Driven Pump