Genuine OEM Audi Engine Coolant Reservoir Hose, part number 8K0819362. This hose is specifically designed to connect the engine coolant reservoir to the rest of the cooling system, facilitating the flow of coolant and allowing for expansion and contraction. Its molded shape ensures a precise fit and correct routing within the engine bay. Constructed from durable EPDM rubber with a protective textile sleeve, it offers excellent resistance to heat and coolant chemicals. Using a genuine OEM hose guarantees the correct material, dimensions, and pressure rating for reliable, leak-free performance.