Yamaha Lower Unit Assembly - 6L2-45300-14-8DYamaha Lower Unit Assembly Outboard Drivetrain 6L2 45300 14 8D Overview When a lower unit is in good shape, you dont think about itit just shifts clean and runs smooth. But once it starts wearing out, everything from shifting to overall performance takes a hit. This Yamaha assembly is the kind of replacement that brings things back to that solid, dependable feel. Its built right, fits the way it should, and gives you confidence every time you put it