I was at my RV dealership recently (getting propane fill-up) and inside the parts area they had a display someone built. They showed all the standard type light bulbs used in most RV's, from driving-running lights like the 1157 to the two pronged ones use in most standard RV light fixtures, and a bunch of others I had no clue what they were.
Under them they had labeled their LED replacement. I thought that was a pretty cool display someone put together. It took a lot of thought and some pretty good knowledge of what bulb would replace which. I wish I would have taken a photo of it. Next time I go, I will.
Anyway, point to be made... yes ... you can get a replacement. But not sure which one will work for you. Maybe you can visit your RV dealership parts store. If anyone should know, it would be them.