This Genuine Tohatsu Marine Part is an extension housing, specifically designed for Tohatsu outboard motors. The part number is 345Q61110-0. The extension housing is an essential component that connects the engine to the propeller, allowing for smooth and efficient power transfer. Made with high-quality materials, this genuine Tohatsu part ensures durability and reliability, providing optimal performance for your marine engine. Whether you need to replace a worn-out extension housing or upgrade your existing one, this genuine Tohatsu Marine Part is the perfect choice for maintaining the performance and longevity of your outboard motor.