They are automotive headlights, you just have to figure out what they were originally designed for.
I found this over on IRV2 forum
my 99 Winnebago has ford lamps. Went to a body shop and they got me a replacement aftermarket assembly for $40. had the bulbs in it too.
36 FL Winne Chieftain ISB Turbo Cummins DPThere is an 8 page tread there where folks are posting what automotive headlight assembly is used in their motorhome. It's at:
Just for fun headlights from smaller vehicles to rvMaybe you could take one of the headlight assemblies out of the motorhome and visit a few body shops and see if anyone recognizes it.
If there are any numbers visible on the remains of your headlights, try using google search with that number.
They're out there, you just have to find them.
Fred