Please help identify sensor

[ageless]

Miraculously, I have 2 sensors (opposing engines) that have both started leaking (oil). Only one has a label on it and the P/N returns no results. 12v71 engines, sensor is the one the arrow points to. Any idea what they operate? They both leak oil out of a small hole in the sensor

 

[ageless]

they look like this but only have (2) connections

 

[SKYCHENEY]

oil pressure switch. Standard part. You can get one at napa

 

[Captain Ralph]

There may be two pressure bars like this on your engine.
One for oil pressure an the other for fuel pressure.
I'm guessing you are leaking from your Nason Oil pressure alarm switches.
Your ships prints will offer the pressure spec.

 

[ageless]

disregard

 

[SKYCHENEY]

disregard

Oil coming from somewhere else?