The product is a brand new 2017 Sea-Doo Spark 900 coolant thermostat valve with the manufacturer part number 420822651. Specifically designed for Sea-Doo personal watercraft, this engine component plays a crucial role in regulating the engine's operating temperature by controlling the flow of coolant. The thermostat valve helps ensure optimal performance and prevents overheating, enhancing the overall reliability and longevity of the watercraft's engine.