Originally Posted by Spk64
I am not sure what size is on your coach. Mine took the 8-1/2" for a Newmar. I believe the listed size is the overall diameter.
So if it matches your diameter, it could be it. My replacement housing was slightly shallower but I left the housing and just swapped lens. After putting in a nice plate of LED's.
I just replaced mine. I ordered "Gustafsons" with the housings on Amazon or Ebay about $20 which included two new gaskets (housing to coach, housing to lens). Steve was "right on" when saying the housing was shallower ( also magnetic which looked like plated steel). I wanted the OEM look and stainless steal so I kept the original housings, used just the new gasket against the lens, and had to slightly elongate the lens hole pattern (.050 inch) outward on the four lense screw holes (with my mill. A drill with some side force would most likely have done the job too. It is only plastic). In the end they look like OEM.
Info only lens only would have cost $8.