This Genuine Tohatsu Marine Part is a fuel filter with part numbers 3U1-02230-0 and 3KY-02230-0. It is specifically designed for Tohatsu outboard motors and is used to filter out impurities and contaminants from the fuel before it reaches the engine. This fuel filter ensures that only clean fuel is delivered to the engine, improving its performance and preventing damage caused by dirty fuel. It is a high-quality and reliable part that is manufactured by Tohatsu, ensuring a perfect fit and optimal functionality for your marine engine.