How do I find toy train part numbers?

How do I find toy train part numbers?

Thanks for the list of sources for parts in the Fall 2025 issue of CTT. I have nine prewar and postwar engines awaiting attention; I’ll need parts for some of them, and your list will be invaluable. But some sources don’t do searches for parts, which raises the question: Where do we find part numbers? At one time I found owner’s manuals and instruction sheets for Lionel engines on the Lionel website, but the last time I looked I couldn’t track t…