Yamaha Lower Unit Assembly - 200 - 225 - 66K-45300-12-NA - See Description for Applicable ModelsYamaha Lower Unit Assembly 200 225 HP Drivetrain Component 66K 45300 12 NA Overview When a lower unit starts slipping or taking on water, youll feel it fastespecially on these bigger V6 setups. This Yamaha lower unit assembly is built to bring back solid, dependable power transfer and smooth shifting on 200 and 225 horsepower outboards. Its the kind of replacement you go with when you want everything lined up right and running like it should. Once its