Is there anywhere online to get a replacement tail light lens for my 2013 MF1635? Seems all I can find is the AGCO website that requires you to have a username and password which I don't have. Is there anywhere else?
To look up parts for MF, go to Agcopartsbooks.com. Directly below the "Sign In" box is a box that says "Guest User" and a button (View Books). Clicking that button will get you into the parts books. Look up your tractor, find the p/n for the lens. (Sounds like you already got that far...)
To order parts online, take that P/N to Jackssmallengines.com and enter it in. There's your tail light. Add it to your cart, and order directly through Jacks. Prices have been better than dealer for me, and since there are no local dealers, that's how I get parts.
Note that Jack's doesn't stock the parts, so you'll wait two weeks or more for it, but it'll get there.
You can order pretty much any agco part through them, which is nice.