I have an 1983 completely rebuilt SD22 diesel in my 85 Samurai. I want to install a Murphy switch that will shut down fuel if the engine temperature rises above 200 F. Looking for a parts list  Between me and my mechanic we will figure out the rest. He is busy so I don't want to take his time researching.

Is your fuel cutoff mechanical or a solenoid?  If it is a solenoid, you can interrupt the circle to the solenoid.