This is a genuine oil filler cap from VICTOR REINZ, part number 71-34067-00. It is designed to provide a reliable and secure seal for your vehicle's oil system. Proper sealing of the 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 could lead to premature wear and damage. VICTOR REINZ is known for producing high-quality engine components, and this oil filler cap is no exception. It is manufactured to meet or exceed original equipment specifications, ensuring a perfect fit and long-lasting performance.