Genuine OEM Volkswagen Toothed Belt Pulley, part number 027105263B. This pulley is a crucial component of the engine's timing system, responsible for driving the toothed belt that synchronizes the rotation of the crankshaft and camshaft(s). Precise timing is essential for optimal engine performance, fuel efficiency, and emissions control. Manufactured from high-quality metal with exact tooth profiles, genuine OEM pulleys ensure reliable operation and prevent premature wear or slippage of the timing belt, safeguarding the engine from catastrophic damage.