Kenworth Parts

I would love to find a place where I can view the parts fiche/diagrams but I can't find anything anywhere. I did manage to find Kenworth's Online Parts Counter but you have to be an actual fleet to gain access. What does everyone else do for parts, diagrams and availability?

 

Thanks. The problem is I don't always know what the name of the part I'm looking for is to tell them. Having access to the fiche helps me look that stuff up.

 

As a previous auto mechanic, I'm used to having that option as well as aftermarket support. Now that I'm delving heavily into the heavy equipment realm I've found this issue to be a stumbling block.