This Genuine Tohatsu Marine Part is a flywheel with a ring. It is designed specifically for Tohatsu outboard motors and is a crucial component in the engine's ignition system. The flywheel is responsible for storing and releasing energy to power the spark plugs, which ignite the fuel-air mixture in the combustion chamber. The included ring ensures a secure and precise fit, guaranteeing optimal performance and reliability. With the part number 3N5-06189-0, this Genuine Tohatsu Marine Part is a high-quality replacement or upgrade option for your Tohatsu outboard motor.