Yamaha Lower Unit Assembly F9.9 6G9-45300-07-4D is built to deliver exceptional performance and reliability for your Yamaha outboard motor. This lower unit assembly ensures smooth and efficient power transfer, enhancing your boat's propulsion and handling in various water conditions. Constructed from high-quality materials, it is designed to withstand the harsh marine environment, providing long-lasting durability and resistance to corrosion. The 6G9-45300-07-4D lower unit assembly is engineered to meet Yamaha's stringent standards of quality and precision. It guarantees a perfect fit and straightforward installation, seamlessly integrating with your F9.9 outboard motor. Upgrade your boating experience with the dependable and robust performance of this Yamaha lower unit assembly, ensuring your outboard motor operates at its peak for many years. This product has been superseded by: 6G9-45300-07-8D. 6G9-45300-07-4D - LOWER UNIT ASSY