Genuine OEM Volkswagen Coolant Hose, part number 06K121065T. This hose is part of the engine cooling system, responsible for transporting coolant. It is located in the engine bay, connecting various components of the cooling circuit. The hose is constructed from durable materials designed to withstand engine temperatures and pressures. Genuine OEM coolant hoses are manufactured to precise specifications, ensuring proper flow and preventing leaks for optimal engine cooling.