Product Details: Equip your semi truck's wheels to be Ready for the Road Ahead™, with the SKF 6-Hole Oil Fill Hub Cap, a key component that protects against oil, debris, and dust. Thanks to its exterior cover that shields against harmful roadside materials, this removable hub cap is the ideal choice to guard a wheel's lug nuts, bolts, and axles. Crafted with rugged metals and a streamlined design for an easy-to-install or remove procedure. FleetPride is your First Click in Heavy Duty®.