Need help to identify lionel steam engine 2934

Your Erie 4-6-4 is from the #31953 "Riding the Rails" hobo train set.  The set was cataloged 2003-04, but the loco was not available for separate sale.

The loco was not listed in the 2005 Greenberg guide, the only place I could think of that shows catalog numbers of set items.  However, if you e-mail Lionel noting the set number and asking for the loco's part number, they should be able to identify it (they ID'd one for me).

I expect the number will start with 286 (i.e., 286XX).  Similar cataloged locos are 28615, 28626. and 28637.