Don, I have a 2010 200 ProXS. I went to the on-line Mercury parts catalogue on your site to find which hub kit I need. I typed in my Serial # (1B806445) and it came back as no results found? If it helps, the Model # is 1-200p73ey.
Also, once I figure out which one I need, should I stay with the stock plastic/rubber one or upgrade to metal?