I had my car into the local mechanic a couple of weeks ago and he informed me my crank sensor was leaking,I went to rock auto and they show o-rings and it looks like 2 of them does anyone know if this is correct,sensor still works fine,so I'm taking the cheap way out anybody replace these. thanks

 

I think there is only one o-ring.

 

Yup, replace the o-ring (I think there's only one, but there maybe 2, I don't remember. Mine always leaked! (Motor is torn apart, so it's not leaking now! )