Genuine OEM Volkswagen Coolant Hose, part number 07Z121063L. This hose is a critical component of the engine cooling system, responsible for transporting coolant between the engine, radiator, and other thermal management parts. It is located in the engine bay, connecting to various junctions. The hose measures approximately 0.21 meters in length. Genuine OEM coolant hoses are manufactured to precise specifications for durability, correct routing, and optimal coolant flow, ensuring reliable engine temperature control.