Genuine OEM Volkswagen oil filter housing cap, part number 059115311G. This component serves as the primary cover for the oil filter housing, ensuring the filter element is held securely in place and maintaining the integrity of the lubrication system. It is located at the top of the oil filter assembly. This cap is manufactured to exact factory tolerances to ensure a perfect seal and prevent oil leaks. Genuine OEM parts are essential for this application to maintain the correct pressure and sealing characteristics required for engine longevity.