More research:
https://ogrforum.ogaugerr.com/...7#157406524381225207
@gunrunnerjohn posted:Well, not in this case unless the parts site is totally wrong!
This model doesn't have the modular motherboard that allows you to use those boards. This is the reverse unit they show.
All I can find today https://www.lionelsupport.com/...H-8-40B-4002-6-18211
https://www.lionelsupport.com/...ocuments/2718211.pdf
Another model using that same exact PCB https://www.lionelsupport.com/...el-Loco-8495-6-18566