The Stemco 6-Bolt Integrated Sentinel Oil Hub Cap is the perfect choice for those looking for a reliable and durable hub cap. This hub cap is equipped with a distinct red rubber plug, making it easy to differentiate from lower quality competitors. The hubcap glass material is designed to withstand higher heat temperatures before discoloring or deforming, while the strong aluminum casting and advanced window material provide superior strength and durability. The flange inner diameter is 4-3/8 and the flange outer diameter is 6-1/4, making it the perfect fit for your vehicle. With its superior strength and durability, it is the perfect choice for those looking for a reliable and long-lasting hub cap. FleetPride is your First Click in Heavy Duty®.