Hey all,
Thought I'd share that Toyota listed their entire parts database as well as original part diagrams online. It first went online last year I believe. You can find every diagram and every part for our 4Runners located here:
Toyota 4Runner Parts & Accessories | Toyota Parts Center Online
They also have all other Toyotas listed in case you have others. It's extremely helpful and the search function works well. You'll also see diagrams of different models such as the 3RZ, manual transmission, trims, etc. Just click on the "see more images" once you're on a diagram page. I have found it immensely helpful and no longer need a dealer to look up parts for me.