Genuine OEM Volkswagen Coolant Hose, part number 5C0121447D. This hose is an integral part of the engine cooling circuit, ensuring the efficient flow of coolant to maintain optimal engine temperatures. It is identified at position 26 in the system diagram. Manufactured from robust, temperature-resistant materials, this component is designed for longevity and reliable performance. Genuine OEM coolant hoses are manufactured to precise specifications, ensuring a perfect fit and preventing premature failure or leaks.