Genuine OEM Volkswagen Coolant Hose, part number 3Q0122157B. This hose is a critical component of the engine cooling system, responsible for transporting coolant between engine components and the radiator. It is located in the engine bay, connecting various parts of the cooling circuit. The hose has a length of 0.09 meters and a width of 0.041 meters. Genuine OEM coolant hoses are manufactured to exact specifications, ensuring proper flow rate, temperature resistance, and durability to prevent leaks and maintain optimal engine temperature.