This is a genuine ELRING oil filler cap, part number 036.164. Designed to provide a secure and leak-free seal for your vehicle's oil system, this cap is essential for maintaining engine health and preventing oil loss. Crafted with durable materials, the ELRING 036.164 is built to withstand engine bay temperatures and resist degradation from oil and other automotive fluids. Its precise fit ensures it installs easily and stays firmly in place during operation. Properly sealing the oil filler opening is crucial for preventing dirt, moisture, and other debris from entering the engine, which can lead to premature wear and costly repairs. Replacing a worn or damaged oil filler cap with this quality part from ELRING offers peace of mind and contributes to the longevity of your engine.