Genuine OEM Volkswagen A/C Expansion Valve Seal, part number 7E6820139. This critical sealing component is designed to create a leak-proof connection for the A/C expansion valve within the heating and air conditioning system. Weighing 0.056 kg, it is manufactured from specific materials to resist refrigerant and extreme temperatures. Choosing a genuine OEM seal ensures proper material compatibility, precise dimensions for a tight fit, and long-term prevention of refrigerant leaks, which are vital for A/C system efficiency and environmental compliance.