Hi Lou,
The trouble with that 6-24573 B unit is that it has black trucks which wouldn't be a good match for your 2343 engine with silver trucks. It would be a better match for the postwar 2383 diesels.
A better match for your set would be the 6-18101 B unit that goes with the Lionel 6-11711 A-B-A set. ![](https://ogrforum.ogaugerr.com/static/images/graemlins/icon_smile.gif)
Jim