oil pressure sender

[bigskiohio]

My gauges dont work so trying to fix what i can on a 35 year old boat.This is my
oil sender b ut why is there two.

 

[steves937]

Re: oil pressure sender

One might be a switch to turn a light on, safety shut down or run a electric fuel pump. You might have to tell us more info ie make model

 

[bigskiohio]

Re: oil pressure sender

boat info on bottom at the signature

 

[gadget73]

Re: oil pressure sender

Larger one is probably the guage, small one is the buzzer. Probably happens that engine only has one oil pressure port. Engines with multiple ports have two senders as well, but they aren't plumbed that way.