Coolant Temperature Sending Unit?
 

So this might be a dumb question but I can't find it, does anybody know where it is located on these trucks?

https://www.dieselbombers.com/1st-ge...-location.html check this out jason and see if it helps :humm:

Thanks, thats where I thought it was. I dont remember ever seeing that thread. I expected it to be up by the front of the engine for some reason.