The Stemco 6-Bolt Integrated Sentinel Oil Hub Cap is designed to provide superior protection for your wheel end components. This hub cap is equipped with a distinct red rubber plug, making it easy to differentiate from lower quality competitors. The aluminum hub cap has provided safe and secure wheel end protection. The hubcap glass material is designed to withstand higher heat temperatures before discoloring or deforming. The strong aluminum casting with advanced window material provides superior protection against road debris and contaminants. The 6-Bolt design is compatible with a 5-1/2" bolt circle and 5/16" bolt size. FleetPride is your First Click in Heavy Duty®.