That's great. Hopefully over time I'll know which parts work with what.
Oldgreyguy, as a follow up to GRJ, Lionel may list an item as unavailable for a specific locomotive, in your case, but it may be available for a similar lok with a different road name. I’ve found needed parts that are used by a similar item on the Lionel parts web site. Yeah, as you mess with this stuff more, you learn these tricks. Sometimes it can be very time consuming.