Genuine OEM Volkswagen Cylinder Head, part number 038103351B. This cylinder head is the upper part of the engine's combustion chamber, sealing the cylinders and housing critical components such as valves, camshafts, and spark plugs. It is a new, genuine OEM part. Genuine OEM cylinder heads are manufactured to precise tolerances for optimal compression, heat dissipation, and sealing, ensuring engine integrity and performance.