well the bachmann thomas engines are not dcc ready u would either have to find a special seller who dcc's them thereselves or do it yourelf, but u can use bachmann decoders but i suppose any one would probably fit, seeing how there is a lot of space left in most of the engines, but ones like edward have no room whatsoever left in the engine, so then u would have to use the tender but if i could give u instructions on how to do so, i would but sadly i know how to do it by heart and for some odd reason cant write it out, so if what i typed did nothing sorry for wastin yo time man