Genuine OEM Audi Cylinder Head Gasket, part number 03G103383L. This critical gasket forms a high-pressure seal between the cylinder head and the engine block, preventing the leakage of combustion gases, engine oil, and coolant. Its multi-layer steel (MLS) construction is designed to withstand extreme temperatures and pressures within the engine. A genuine OEM gasket ensures precise dimensions and material composition, which is vital for maintaining engine compression, preventing fluid cross-contamination, and ensuring long-term engine reliability.