Is there a good online web site with all of Harleys oem parts diagrams, and part #'s ?

 

Never seen one. Buy a parts manual.

 

I bought a microfiche parts catalog for my '67 Honda. The quality is marginal. It's tough to make out some of the part numbers.

If there's a hard copy parts catalog still available for your bike, get it. It'll treat you better.

If you can find a microfiche and your curiosity is still getting the best of you, get it. They're cheap. But you'll spend a couple hours at the library printing it or creating a .pdf of it.

 

If seen alot of sights like this for my 2003 Yamaha WR450F
dirt bike. it makes it alot easier to go to the dealer and buy a part, if you've already got the part # in hand.