It's not at all uncommon to get used parts from Lionel. Most of the parts come from teardowns of returned or damaged locomotives. I have a second RCMC that I'm going to return again, the original and this one both had HS compound on the bridge, so clearly they were used. The first one was really wonky in the motor drive, this replacement just zorches the smoke unit with double power all the time! It's binary, on or off, no smoke volume control from the CAB2. I must admit it was impressive, but since this is a diesel, I don't want quite that impressive.