This is a genuine CORTECO oil filler cap, part number 220103S. Designed to provide a reliable and secure seal for your vehicle's engine oil reservoir. A properly functioning oil filler cap is crucial for preventing oil leaks and contamination. It ensures that dirt, debris, and moisture are kept out of the engine, which can lead to premature wear and damage. CORTECO is known for its high-quality sealing solutions, and this oil filler cap is no exception. It is manufactured to meet stringent industry standards, guaranteeing a precise fit and durable performance. Replacing a worn or damaged oil filler cap with this CORTECO part will help maintain the integrity of your engine's lubrication system and contribute to its overall longevity.