Genuine OEM Audi Cylinder Head Gasket, part number 057103383JB. This gasket is a critical engine component designed to establish a secure, leak-proof seal between the cylinder head and the engine block, which is fundamental for maintaining engine compression and preventing the intermixing of engine fluids. It is installed directly between the cylinder head and the engine block. With a thickness of approximately 0.002 meters, this gasket is engineered for precise fitment. Selecting a genuine OEM cylinder head gasket ensures the exact material specifications and manufacturing tolerances for reliable engine performance and longevity.