Genuine OEM Volkswagen Vibration Damper, part number 03H105243AF. This part is integrated into the crankshaft assembly to absorb and dampen torsional vibrations generated during engine operation. It is typically mounted on the front of the crankshaft. Manufactured with precise balancing and material properties, genuine OEM vibration dampers are critical for engine longevity and smooth running, preventing excessive stress on the crankshaft and other engine components.