I'm kind'a slow, but I finally learned. :lol: Auto Zone carries a voltage regulator for buses with generators. The last one I bought was about half what a Bosch regulator cost. I ran the cheap one for several years . . . anything electrical on bus (battery, regulator, starter, light bulbs, generator, etc.) had a life expectancy of about 4 or 5 months. I put a Bosch regulator on it about 4 years ago and all my electrical problems vanished. The lesson here is "cheap" doesn't always equal "cheap." :wink: