Genuine OEM Volkswagen Coolant Pump, part number 059121016E. This pump is responsible for circulating coolant throughout the engine's cooling system, preventing the engine from overheating. It is typically mounted to the engine block and driven by the engine's accessory belt. This specific model includes a glued-in sealing ring for enhanced leak prevention. Genuine OEM parts ensure the correct material composition and manufacturing tolerances for reliable and long-lasting performance in your vehicle's cooling system.