Genuine OEM Audi Coolant Hose, part number 4E0265379Q. This hose is crucial for the engine cooling system, carrying coolant between various engine components and the radiator to dissipate heat. It ensures proper fluid circulation to maintain optimal operating temperature. Made from durable, heat-resistant materials, this hose is designed for a precise fit and reliable, leak-free performance. Choosing a genuine OEM hose guarantees the correct routing geometry, material composition, and pressure resistance for long-term durability and system integrity.