Genuine OEM Volkswagen Radiator Hose, part number 2Q0122051D. This critical component is responsible for circulating coolant between the engine and the radiator, maintaining optimal engine operating temperatures. It is positioned on the left side of the cooling system, connecting directly to the radiator. Weighing 0.446 kg, this hose is constructed from durable, heat-resistant materials. Using a genuine OEM radiator hose ensures correct routing geometry, proper fluid resistance, and long-term reliability, preventing leaks and maintaining cooling system efficiency.