Yamaha - Lower Unit Assembly - F350 - 6AW-45300-34-8D - See Description For Applicable ModelYamaha Lower Unit Assembly Gearcase & Drive System F350 6AW 45300 34 8D Overview On a V8 like the Yamaha F350, the lower unit is carrying serious load every time you push the throttle forward. This assembly is built to handle that kind of power, delivering smooth, consistent transfer from the engine down to the prop. If your current unit is worn or starting to show signs of failure, this is the kind of replacement that brings everything back into