This Genuine Tohatsu Marine Part is a speedometer sender with the part number 3B7-72643-0. It is specifically designed for Tohatsu outboard motors and is used to accurately measure and transmit speed data to the speedometer gauge on the boat's dashboard. This sender is a crucial component for monitoring the speed of the vessel, ensuring a safe and enjoyable boating experience. Made with high-quality materials, this Genuine Tohatsu Marine Part guarantees durability and reliability, making it a perfect choice for replacing or upgrading your speedometer sender.