I was wondering the same thing, but I'm at work and people keep bothering me with non-train stuff! So.....*drum roll*.....TJ is correct!!!!!!
1986-90 Lionel #8625, 6921 Loco & Caboose: This is a Lionel Pennsylvania locomotive (DC current), tender and caboose, #8625 and #6921, made from 1986-90. This engine/tender and caboose came from various inexpensive sets made in the 1980s. The engine is plastic and is DC only, it cannot be used with the standard Lionel AC transformers. The tender has the mechanical chugging sound. All three pieces are in excellent condition as can be seen from the pics. No individual boxes came with these cars, since they were in a set box. They are fully operational and ready to run. Price is $45 plus shipping.
Great call, TJ!