Product Details: The Stemco 5" & 6" Wheel Hub Cap Gasket is designed to provide superior protection against debris penetration and lubricant escape. Its precision sealing design helps to prevent harmful contaminants from entering, while its reinforced outer case helps to prevent installation damage and enhance durability. This gasket is made from high-grade rubber for superior strength and durability and is designed to seal minor spindle imperfections and promote positive spindle seating. It is the perfect choice for keeping your wheel hub cap secure and protected. FleetPride is your First Click in Heavy Duty®.