I did some research and it appears that the Winnebago Part 139134-01-03A you mention is a 35" satin/nickel ceiling fan. To that extent, the closest replacement we have is the 12V RV Ceiling Fan w/ Wall Switch # 344410TSDC36BNOKCY.
This fan is brushed nickel with a cherry/oak finish, has a 12V powered, 34 1/2" diameter fan, and includes a replacement wall switch, which offers 4 fan speeds. view full answer...