This Genuine Tohatsu Marine Part is an Over-Heat Sensor with the part number 3C8-76172-0. It is designed specifically for Tohatsu outboard motors and serves as a crucial component in monitoring the engine's temperature. The over-heat sensor is responsible for detecting any excessive heat levels within the engine and sending signals to the boat's control system. This helps to prevent potential damage or overheating issues by triggering necessary safety measures or alerts. As a genuine Tohatsu part, it guarantees high-quality and reliable performance, ensuring the smooth operation and longevity of your marine engine.