Genuine OEM Audi Coolant Hose with Coupling, part number 8W0819334J. This hose is designed to connect various components within the engine cooling system, facilitating the flow of coolant. It features an integrated quick-release coupling for efficient installation and serviceability. The hose is positioned connecting to the coolant expansion tank and other auxiliary lines. Weighing 0.2505 kg and measuring approximately 0.405 m in length, it is made from durable, heat-resistant rubber. Using a genuine OEM hose with coupling ensures a leak-free connection, correct routing, and the precise functionality of the quick-release mechanism, vital for system integrity and ease of maintenance.