Product Details: Ensuring you are Ready for the Road Ahead™, the Power Products 1-1/2” Oil Fill Cap serves as an easy replacement for the original cap around the oil fill opening of your engine, which may be leaking or failing due to wear. With a rubber collar that compresses around the rim for a leak-free seal, this heavy duty oil filler cap replacement successfully prevents debris and contamination of the oil with reliability you can count on. FleetPride is your First Click in Heavy Duty®.