Coupler Part needed maybe posted in the wrong Catagory?

@Forest, I used the search functionality right off and think you are looking for this: https://ogrforum.com/...7#149239177438943697

As you can see, the correct part was identified, and sourced and OP has stated his way forward - he is waiting on Lionel to send him the part in lieu of warranty return and fix.

It is not clear to me if the PW 2321-156 will substitute - it looks like it, but with so many similar looking coupler armatures, who can be sure without further comparison? Immediately, I see that the 2321-156 has a more of an oblong hole than the factory correct part.

Yes it would need to be measured and compared for fit. Many postwar and MPC parts were re-purposed for use in later production. The only way to tell is to compare them. Not to long ago a member was looking for a gear to repair a Lionchief truck. The gear was not available and was going to cost a good price to replace it with the entire newer designed truck. After some comparison I was able to the fix the poster up with an identical gear from the MPC Era. Same part - different number. The old gear was still available. I sent him the new gear for something like $3.00 shipped.

Thank you for the link.

Forest