Yamaha Lower Unit Assy - 6G9-45300-02-EK. The Yamaha Lower Unit Assy - 6G9-45300-02-EK is meticulously crafted to deliver exceptional performance and reliability for your Yamaha outboard motor. This lower unit assembly ensures a precise fit and optimal functionality, significantly enhancing the overall efficiency of your marine engine. Constructed from high-quality materials, it is built to withstand the harshest marine environments, offering long-lasting durability and consistent performance.. With the Yamaha Lower Unit Assy - 6G9-45300-02-EK, experience smooth and efficient power transmission that minimizes drag and maximizes thrust. This results in improved fuel economy and a smoother ride on the water. Trust in Yamaha's commitment to quality and innovation with this lower unit assembly, ensuring your boat operates at its peak in all conditions, providing a reliable and enjoyable boating experience.. This product has been superseded by: 6G8-45300-26-EL. 6G8-45300-25-EL - LOWER UNIT