Genuine OEM Volkswagen Cylinder Head Gasket, part number 028103383AJ. This metal gasket forms a seal between the cylinder head and the engine block. It is located at the base of the cylinder head assembly. This gasket is crucial for maintaining compression within the cylinders and preventing the mixing of oil, coolant, and combustion gases. Genuine OEM gaskets are manufactured to precise specifications for optimal sealing and engine longevity.