No, I purchased this new BUT many years ago and do not have any proof of purchase so warranty is out.
Jim, you mentioned a screw in this assembly. There is none on this loco. That's why I said it was a poor design. If I clipped the wires the whole assembly would come off.
Please give me a little more detail on your "FIX". Like I said, I am a newbe. I had the train for years but it has been a Christmas thing for the grand children.