Genuine OEM Volkswagen Refrigerant Adapter, part number 5WA816517. This adapter serves to connect different components within the air conditioning refrigerant circuit, ensuring a sealed and efficient system. It is crucial for the proper functioning of the A/C system. The part is located at position 50 in the diagram. Genuine OEM parts are manufactured to precise specifications, ensuring exact fitment and material integrity for reliable and long-lasting performance in the air conditioning system.