Need a rear pilot for about Locomotive O Gauge Bachman is shut down thought I would check to see if anyone might have one available Thanks Tom Weaver
I can't see the end of your pilot to confirm what I found, so you will have to determine if the info I am giving you is accurate. The part number on the Bachmann web site is, 335-04-01. It appears that this is the same pilot that Bachmann also uses on the Trainmaster, BL2 and the EF4. There is one on eBay for about 13 bucks, but it is yellow. If you are okay with repainting it, this looks like a good option. Here is the link if you are interested, WBB pilot. You need to see if the details on the pilot in the link match your pilot.
Try Brasseur. I had the same problem years ago for the exact same engine. I am pretty sure I got my replacement truck from them.