Genuine OEM Audi Engine Shaft Oil Seal, part number 0AR525275A. This critical sealing component is designed to prevent oil leakage from rotating engine shafts, such as the crankshaft or camshaft, ensuring that engine oil remains contained within the lubrication system. It is typically installed at the interface where a shaft exits an engine casing. Weighing approximately 0.032 kg and measuring 0.065m in diameter, this seal is made from high-quality, oil-resistant elastomer. Choosing a genuine OEM oil seal guarantees the correct material composition, precise dimensions, and optimal sealing properties, which are vital for preventing costly oil leaks and maintaining engine reliability and performance.