Quicksilver 8M6013838 - Thermostat kit for Yamaha 9.9-200hpFor the best performance, efficiency and reliability, keep your engine running at its optimal temperature with a new Quicksilver 8M6013838 Thermostat Kit for Yamaha 9.9-200hp outboards.Key Product Features Fits Yamaha 9.9-200hp outboards; Provides proper engine cooling temperature to help assure peak performance and efficiency; Helps regulate the temperature of your engine to prevent damage that can occur from overheating; Includes thermostat, thermostat cover and gasket; Quicksilver parts are engineered and manufactured to meet or exceed OEM specifications; Application Information:Fits Yamaha 9.9-200hp outboards