This Genuine Tohatsu Marine Part is an exciter coil with the part number 3B7-06120-1. The exciter coil is an essential component in the ignition system of a Tohatsu outboard motor. It is responsible for generating the initial electrical charge that is required to ignite the fuel-air mixture in the engine's combustion chamber. This particular exciter coil is a genuine Tohatsu part, ensuring high quality and compatibility with your Tohatsu outboard motor. By replacing your old or faulty exciter coil with this genuine Tohatsu part, you can ensure optimal ignition performance and reliable operation of your outboard motor.