Part number madness, need some clarification from the swap guru's Options

[enderswift]

hey everyone,

I'm hoping you guys can help me out with some part number research. I managed to get my hands on a copy of Toyota's EPC and its been a great asset in collecting parts Only problem is, I'm seeing some part number contradictions between whats posted on 6gc and other sites, and whats listed on the EPC catalog. Basically the epc lists part numbers piece meal whereas 6gc has part number for kits. Heres an example:

the EPC shows a 3sgte oil pump assembly to have a part number of 15100 (and gives separate part number for the associated gaskets and seals)
The stickies in 6gc give a oil pump assembly number of 15100-88460

I'm not exactly sure what those 5 extra numbers represent.

is the 6gc number a kit number? (meaning it comes with all gaskets and seals?)

[enderswift]

Thanks a bunch man! very informative. And yea I figured the epc was old, especially when i had to run an xp virtual machine in win 7 to get it to start. Well, I guess I have more work to do. Do you have any more details on microcat? It doesn't seem like they sell to the public, which makes sense considering Toyota no doubt wants to make cash on maintenance. What would you say is the best way to go about getting a comprehensive source for part numbers? ToyoDIY no longer has diagrams, my EPC is outdated, all the sites have numbers for different gens or contradicting numbers, and I really don't want to just walk into a dealer and piss off the parts counter guy with 45 min of part searching haha