Yamaha Lower Unit Assembly - LF225 - 69K-45300-23-8D - See Description for Applicable ModelsYamaha Lower Unit Assembly Complete Drivetrain System 69K 45300 23 8D Overview When a lower unit is dialed in, you get smooth power to the prop and solid control without even thinking about it. This assembly handles everything from shifting to transferring engine torque into the water, so it takes a lot of abuse over time. Once things start wearing out down there, youll hear it or feel it pretty quickly. Swapping in a complete unit like this is