Genuine OEM Volkswagen Cylinder Head, part number 03C103351Q. This critical engine component houses the valves, springs, and camshafts, forming the upper part of the engine's combustion chamber. It is essential for controlling the intake and exhaust of gases into the cylinders. Manufactured to exact specifications for precise fit and function. Genuine OEM cylinder heads are cast and machined to strict tolerances, ensuring proper sealing and heat dissipation for long-lasting engine integrity.