Genuine OEM Volkswagen Catalyst Seal, part number 5N0253115. This critical gasket forms a tight seal between exhaust components, specifically at the connection point of the catalytic converter, to prevent exhaust gas leaks. It ensures optimal exhaust system performance and emissions control. Made from durable metallic material, it weighs approximately 0.019 kg. Using a genuine OEM seal guarantees precise dimensions and heat resistance, preventing premature leaks and maintaining exhaust system integrity.