Genuine OEM Nissan Engine Water Pump, part number 2101000Q3K. This component is essential 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. The water pump is constructed from durable materials to withstand high temperatures and pressures. Genuine OEM parts are manufactured to precise specifications, ensuring optimal performance and longevity.