Genuine OEM Audi Radiator Coolant Hose, part number 5Q0122101FR. This essential component is responsible for transporting coolant between the engine and the radiator, playing a critical role in the engine's thermal management system. Positioned on the left side, its complex molded shape ensures precise routing and connection within the engine bay. Weighing 0.682 kg, this hose is constructed from durable, heat-resistant materials designed to withstand high temperatures and pressures. Choosing a genuine OEM coolant hose guarantees correct routing geometry, material integrity, and resistance to fluid degradation, preventing leaks and ensuring efficient engine cooling.