Genuine OEM Volkswagen Toothed Belt Pulley, part number 0XW105263B. This pulley is integral to the timing system, driving the timing belt to ensure precise synchronization between the camshaft and crankshaft. Accurate engine timing is fundamental for smooth running and efficiency. This part is located within the engine's timing belt assembly. Genuine OEM parts ensure the correct tooth engagement and material durability for consistent timing performance.