Genuine OEM Volkswagen Coolant Hose, part number 7E0121058AA. This essential hose is designed to carry coolant, playing a critical role in engine temperature regulation and maintaining optimal operating conditions. It connects various components within the engine cooling system. Weighing 0.048 kg and measuring 0.105 meters in length, this genuine OEM hose provides the precise routing geometry and material resistance required for reliable coolant flow, preventing leaks and ensuring efficient heat transfer.