This is a genuine ELRING oil filler cap, part number 964.810. Designed to provide a reliable and secure seal for your engine's oil reservoir, this cap is essential for preventing oil leaks and protecting the engine from external contaminants. Crafted with durable materials, the ELRING 964.810 oil filler cap is built to withstand the demanding conditions under the hood. Its precise fit ensures it integrates seamlessly with your vehicle's oil filler neck, maintaining the integrity of your engine's lubrication system. Properly sealing the oil filler is crucial for engine health. A faulty or missing cap can lead to oil loss, increased engine wear, and potential damage. Replacing your oil filler cap with a quality part like this ELRING component ensures optimal performance and longevity of your engine.