Finding an exploded diagram

[Ferris11]

I have a simple but probably stupid question on my part on how to find an exploded diagram of a part on boats.net. When I finally find the page for my particular motor they list "select component" what I would call a category. Which "component" category would include the thermostat?

[99yam40]

for my C40TLRX it is the CYLINDER CRANKCASE

[Ferris11]

Thanks. I had a brain freeze today and it was driving me nuts.