Genuine OEM Volkswagen Coolant Hose, part number 5Q0122051CN. This coolant hose is a critical component of the engine's cooling system, responsible for transporting coolant between various parts of the engine and radiator. It features a quick connect fitting for straightforward installation and secure connection. Proper coolant flow is essential for maintaining optimal engine temperature. Genuine OEM hoses are manufactured to exact specifications for durability and reliable performance.