The Power Products Hub Cap is designed to provide superior sealing and protection for your vehicle's wheel hub. The hub cap is made from durable aluminum and features an embedded aluminum ring that evenly distributes the load. The molded pressure ridge improves the sealing ability and the patented umbrella style valve seals keep out contaminants and dust. The center-fill vented plug-in design ensures a secure fit and the side fill plug incorporates an O-ring for extra leak protection and a magnet which traps metallic particles. This hub cap is the perfect choice for keeping your vehicle's wheel hub safe and secure. FleetPride is your First Click in Heavy Duty®.