Genuine OEM BMW Cylinder Head Cover Shaft Seal, part number 11127507217. This seal is specifically designed to prevent oil or other fluids from leaking around a shaft that passes through the cylinder head cover. Its precise dimensions and material composition ensure a tight seal, maintaining engine cleanliness and proper lubrication. Made from durable rubber, it is built to withstand engine temperatures and pressures. Genuine OEM seals provide the exact fit and sealing properties required for engine longevity.