Product Details: The Kit Masters Engine Cooling Fan Clutch Seal and Friction Lining Kit ensures you are Ready for the Road Ahead™, boasting Auto Lock technology, a patented fail-safe innovation. Built to outperform and outlast the competition, this rear air, heavy duty fan clutch repair kit boasts unparalleled dual seal performance and the most durable friction material. FleetPride is your First Click in Heavy Duty®.