Genuine OEM Volkswagen Coolant Pump With Sealing Ring, part number 021121004X. This coolant pump is responsible for circulating engine coolant, preventing overheating and maintaining optimal operating temperature. It is located in the engine cooling system and comes with a sealing ring for a secure fit. Made from robust materials to ensure durability and consistent performance. Genuine OEM coolant pumps are manufactured to exact specifications for reliable fluid circulation and long service life.