Genuine OEM Volkswagen Complete Cylinder Head, part number 03N103061A. This component forms the top seal of the engine cylinders, housing valves and providing a combustion chamber. It is the main structural component of the engine's top end. The cylinder head weighs 13.842 kg. Genuine OEM cylinder heads are manufactured to exact tolerances for proper sealing, heat dissipation, and valve operation, ensuring engine integrity and longevity.