Genuine OEM Audi Engine Coolant Hose, part number 6R0122109G. This hose is a critical component in the engine cooling system, designed to transport coolant between various engine components and the radiator or expansion tank. It ensures efficient heat dissipation and maintains optimal engine operating temperature. Manufactured from durable, heat-resistant rubber compounds, this hose is engineered for precise routing and secure connections. Choosing a genuine OEM hose guarantees exact fitment, proper fluid resistance, and long-term reliability, preventing leaks and maintaining cooling system integrity.