This CORTECO oil filler cap, part number 220061H, is designed to provide a reliable seal for your engine's oil reservoir. Properly sealing the oil filler prevents contaminants from entering the engine and ensures that oil does not leak out during operation. This cap is manufactured to meet or exceed original equipment specifications for fit and function. Ensure your engine's lubrication system remains clean and efficient with this quality component from CORTECO. It is a crucial part for maintaining engine health and preventing potential damage.