Genuine OEM Volkswagen Engine Coolant Hose Adapter, part number 5WA122291F. This adapter is crucial for connecting different sections of the coolant hose, maintaining the integrity and efficiency of the engine's cooling circuit. It is situated within the coolant hose assembly, facilitating proper fluid flow. Made from durable, heat-resistant plastic, it ensures a secure and leak-proof connection. Choosing a genuine OEM adapter guarantees the correct material composition and precise dimensions for optimal performance and longevity in a high-temperature environment.