[rheavn]

Forest Olivier found this replacement gauge for the inside AquaHot temperature gauge and I put one in my coach too.  When I called Cyberdyne, the manufacturer of the original gauge, they did not offer much technical support.  I decided to use the Intellitronix  2 1/16" led digital water temperature that included the sender.  Part # is M9113R.  The look is almost exactly the same and fits perfectly.  I got mine from JC Whitney for $45.  Installation was simple and was able to use the existing wiring.  New gauge has a lifetime warranty.

Sending unit part #S8013