I could tell you the thread pitch, just got to check but not sure on size, do you still have the egr fitting? its hidden so I just cut it and bent the pipe over a couple times and clamped/crimped it
Found a bad ass program for making switch panels. Although this setup here would cost $47 to make. So... Ill just pick up some ABS and make it myself. lol
Here will be the switches for the SC and 2nd cooling fan. Also a voltage gauge if i can find a 5v power source.