Gil, It has an industrial 45 engine in it. The other wd engine had a broken piston. Wayne put the 45 engine in it. It has a wd rearend and serial number, it is a 1953 model. That is about all I know about it. It runs great. Piston #4 has stuck rings. I have some things to do to it, but I think it is going to be a good tractor. Thanks, Ricky