We are unable to find any Model or Serial #'s on our Duerr log splitter. Where do you "hide" them? It is very important that we have these 3's for a insurance problem.

Hi,
Usually it is plainly visible on the frame near the engine. I have seen them on the beam, and in an unusual place in that it is on the underside of the frame near the engine on one side on the vertically bent part of the frame which means that you might have to look from both sides to verify it is or is not there.
Peace,
Clarke