I found it on ebay but Vintage Parts USA makes them. The castings are OK but they are a bit rough. They come somewhat polished. I bead basted this one and then tumbled it for a few hours to satin it out. That helps make the rough casting int he grooves between the fins less noticeable. I stuck some thin strips of weather stripping inside the cover to hole the coil in since it was a bit of a loose fit.