Online stores that sell computer parts?

Where do iProduct repair stores get their parts?

• As far as I know, Apple does not sell off parts to 3rd parties so when someone takes a broken iProduct to a technician where do these parts come from that they use to fix the item? If they are certified does that necessarily mean that Apple has given them parts to fix items with? Seeing as Apple stores themselves don't even have the luxury to replace many things, unless they're computer parts of course, in store I feel like this is not the case but just wanted to make sure.

• Answer:

  Here is one place on the web where you can get replacement parts: http://www.repairsuniverse.com/