Genuine OEM Volkswagen Coolant Hose With Coupling, part number 3QF121157H. This component facilitates coolant circulation and is designed with a coupling that allows for quick and secure connection and disconnection. Its function is to ensure efficient coolant flow and simplify maintenance procedures within the cooling system. This part is located at position 21 in the cooling system diagram. Weighing 0.083 kg, it is manufactured to exact specifications. Genuine OEM parts ensure the integrity and performance of the cooling system, providing reliable coolant transfer.