I am going to help my neighbor change out his impeller. He has a 2001 optimax 150. I can get the serial number if needed. I just want to make sure I have him order the right kit. OEM is what I am looking for. If there is anything unique to changing the impeller on this motor that would be nice to know also. I have changed them on smaller mercs and my Alpha. I have looked at a part schematic and it looks similar so I don't foresee any issues unless I am missing something.
