If I read you right, yeah those new LED "bulbs" look like a circuit board because -- well -- they are one.
I'd head over to someplace like M4 Products (M4 Products
[ No affiliation - just a suggestion ]
And see if you can find a matching LED light.
Coupl'a additional thoughts - LED lights *should* last a lot longer. Having several burn out would get me thinking.
Some (cheaper) LED lights aren't tolerant of voltage fluctuations. Might make me wonder if I've got power issues.
And I've had hit-or-miss luck on the Chinese cheapies from eBay. In my old coach, I replaced all of the bulbs with Chinese cheapies. About 75% lasted and 25% had early failure.
So - maybe there's an issue or maybe Jayco got a batch of bad ones?