Dan, most of the ones offered are repaired units, I don't know of anyone who sells a replacement Regulator. Your unit MUST be rebuildable to get a new one. I will look and see if I can find the info on a source. Again they do come up every now and then on Ebay but they are on the Big Buck side. Most of the time the pot metal drive gear for the windshield strip is worn smooth. Would be nice if some one would make a replacement gear for them.