Genuine OEM Volkswagen Cylinder Head Valve Guide, part number 037103419B. This critical engine component guides the precise movement of engine valves within the cylinder head, maintaining proper valve alignment and sealing. It is situated inside the cylinder head, providing a bearing surface for the valve stem. Weighing approximately 0.021 kg and measuring 0.037m in length, this guide is manufactured to exact factory tolerances. Using a genuine OEM valve guide ensures proper fitment, material composition, and durability, which are crucial for maintaining valve train stability and preventing premature wear.