Genuine OEM Audi Coolant Hose, part number 8K0265235H. This hose is a vital component of the cooling system, responsible for the reliable transport of coolant between engine and heat exchanger components. It is engineered with specific material compounds to resist high temperatures, pressure fluctuations, and chemical degradation. Genuine OEM hoses provide the correct pre-formed geometry to prevent kinking and ensure a secure, leak-free connection.