Excellent thread! I just got into the MEP generators with my trailer mounted 2011 MEP-802A...
My gen had the sockets and lights already installed just had to make the jumper from the instrument light switch to the three gauges. I didn't see it noted here but the "stock" bulbs are just 194 24v. I ordered a cheep batch of multi-volt LEDs from Amazon and they work great
https://www.amazon.com/gp/product/B0744LFFG8/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
I will probably go with a better brand of 194 24V LEDs at some point but I just wanted something expedient to see if they would work. Time will tell if the cheepo ones hold up.
I also replaced the #6S6, S12 base, S-6 shape (3 each) green panel lights. Seems to be an old standard bulb and couldn't find an LED equivalent. Amazon again:
https://www.amazon.com/gp/product/B00JXI4CSQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
Pics taken in the dark so only the panel lights are providing the light you see (no flash).
View attachment 718807
View attachment 718808
Now I have to move on to figure out what's wrong with the temp gauge pegged and fuel gauge reading empty when tank full... TM troubleshooting ahoy!

Good times... Good times
Thanks for the great info!
OD