Product Details: Keeping you Ready for the Road Ahead™, the Power Products 1-3/8” Oil Fill Cap serves as a simple replacement for the original cap around the oil fill opening of your engine that may be leaking or failing due to wear. Gain a leak-free seal you can count on with this heavy duty oil filler cap’s rubber collar that securely compresses around the rim, successfully staving off debris and contamination of the oil. FleetPride is your First Click in Heavy Duty®.