Bill USN-1...I had the same thing happen to all 3 gauges oxidize in my American Eagle as well as others RVers on here. Buying new ones was Crazy money so I found this company that rebuilds with way better that factory lenses. Turn a round was fast since I had it done while my coach was in the winter storage. ultrarvproducts.com 800-417-4559
Give them call for the current pricing.
2004 American Eagle "J"/400 ISL/Spartan MM
Luxe Ryder Trailer
2007 Honda ST1300 & 2004 Honda Rune