I have a 2010 optimax that has mercury stainless prop an want to know if this will fit it to help with steering?
It can help with steering, it just has to do with alignment of trim tab and steering. A local Mercury technician can diagnose steering problem exactly though. If you have further questions contact us at the number at the top of the page.
This is a aftermarket part, you'll need to call or email us with your engine serial number so we can look up the diagram of your engine to see if this matches to your OEM part number from your diagram.