This is a genuine CORTECO oil filler cap, part number 220147S. It is designed to provide a reliable and secure seal for your vehicle's oil filler opening. A properly functioning oil filler cap is crucial for maintaining the integrity of your engine's lubrication system. It prevents dirt, debris, and moisture from entering the crankcase, which can lead to premature wear and damage. It also stops engine oil from escaping, preventing potential leaks and maintaining the correct oil level. Crafted with quality materials, this CORTECO cap is built to withstand the demanding conditions under the hood, including heat and exposure to various automotive fluids. Its precise fit ensures easy installation and a tight seal, giving you peace of mind. Replacing a damaged or missing oil filler cap promptly is essential for the longevity and performance of your engine. Trust in CORTECO for dependable sealing solutions.