Mitsubishi CAPS Part Lookup Application
I know there's another thread here somewhere about the Mitsubishi CAPS program, but I figure I'd link to the latest version I could find (covers up to 9G Galants). You can use this application to pull up diagrams for almost everything on your car and then get part numbers that you can use at https://www.mitsubishiparts.com/oe_parts_catalog.html to get prices and even order the parts.
I see requests for part numbers every now and then, so I figure this would help you all out. I use it ALL the time to cross-ref part numbers from different models when I go junkyard digging.
You can download the program directly from here: http://www.stealth316.com/misc/wincaps-setup.exe
EDIT: 100 MB! Dialup users beware.
More info on it can be found here: http://www.stealth316.com/2-wincaps.htm