Hey guys...

In my '83 300D-

popped the hood, working on tranny problem, I noticed that a large hose, connecting to the firewall on the passenger side, was torn almost completely through.

I want to order a replacement, but don't know what this would be called.
Is there a diagram that actually resembles what is under the hood? So I would really know what I am looking at, and what everything is called?

These "NASA schematic"-type diagrams make my head hurt!

Is there anything that is user-friendly out there?

Thanks guys.