What is the difference between a Lionel "W" tender and the "WX" version?

[rtraincollector]

I sent Roger Carp a email asking him to step in and comment on the good question. 

[rtraincollector]

while there the same in appearence, To most collectors not runners theres a difference, which I believe that actually big Al was hitting on. But there's more than the 671 that it applied to. Basicly the WX was added to tenders that had engines with no magnetraction. So the big thing I guess is also if your set calls for a WX instead of a W then you engine should not have Magnetraction either. To be totally correct. 

[Penny Trains]

This is a 2035 pulling a 6466WX tender:

This is a 2035 with a 2466W tender:

And here's one with a 6466W tender:

Personally, I just can't tell which is which without looking for the number on the bottom.

P.S. aboard!

Becky

[rtraincollector]

Al I have different engines that are matched with the WX and it is what the set calls for. 

examples my 1402W set is a 1666 with a 2466WX

my 2136WS is a 736 with a 2671WX 

but my  2265 is a 736 with a 2046W 

To answer your question thou, it can matter depending on the collector. If it calls for a WX by the book thats the one you need. 

[BigAl 956]

My understanding is the 1952 version of the 681 became a 671 and gave up it's magnetraction due to Korean war limitations. The matching tender was renumbered X signifying it went with the 1952 671 (no magnetraction).

[Randy777]

I am trying to put together some train sets with the correct engine, tender and cars.  One of the reference books I have lists (for example) a 6466WX as the correct tender for a particular set.  I have a 6466W tender.  Are these the same?  If not what is the difference?  I note the same issue with 2046W and 2046 WX.  Thanks!