Yamaha - Lower unit assy - 6FK-45300-03-8DYamaha Lower Unit Assy 6FK 45300 03 8D The Yamaha Lower Unit Assy 6FK 45300 03 8D is specifically designed to provide exceptional performance and reliability for your Yamaha outboard motor. This lower unit assembly ensures a precise fit and optimal operation, enhancing the overall efficiency of your marine engine. Constructed with high quality materials, it is built to withstand the challenges of marine environments, offering long lasting durability