The Meritor 6.75" Axles Oil Dual Dynamics Hub Cap is designed to provide superior protection for your vehicle's axle. This hub cap is made from a combination of aluminum and hi-impact poly materials, making it both durable and lightweight. It features a screw-on design with a plug and gasket or O-ring included. The poly screw-on caps also come with a vented plug and hub odometer-ready. This hub cap is designed to provide superior protection against dirt, dust, and other debris, ensuring your vehicle's axle is kept in optimal condition. FleetPride is your First Click in Heavy Duty®.