Mine would be the very noisy discontinued model of this one, I had to pull the cover off for a recall and they sent me a new cover, guess some were over heating, it was exactly the same as the cover i took off except it had none of the compressor info on it so i threw the replacement housing in the trash and kept the old one with the info. I was amazed because i looked at the size and stroke of the piston, it was about 1.25 diameter, stroke of about 1".. cheesy as hell..
http://www.sears.com/craftsman-33-ga...72000P?prdNo=1