Genuine OEM Audi Water Radiator Hose, part number 6C0122051AC. This essential component is responsible for circulating coolant between the radiator and the engine, maintaining optimal operating temperatures. It is positioned on the left side of the engine cooling system. Constructed from durable, heat-resistant rubber, this hose measures approximately 0.6 meters in length and weighs 0.696 kg. Using a genuine OEM hose guarantees the correct routing geometry, precise fitment, and resistance to high temperatures and pressures, preventing leaks and ensuring long-term cooling system integrity.