GMC Repair: oil pressure sending unit, e mail address, oil pressure sending unit

Question
Hello sir my problem is that I have an oil leak that I have to fix,I thought it might be the oil pan seal,But that was not the problem.It is leaking from the sensor or switch attached to the same metal part that the oil filter attaches to.I went to advanced auto to get the replacement part that I needed but it looks nothing like what is attached to my jimmyThe part that they gave me is OPS68 which is a switch communicator interruptor.What I have on my jimmy looks like a brass nut with a metal extension and at the end of it is a braided wire that extends downward and attaches around a bolt.I have a 1983 S15 Jimmy 2.8 engine.oil is shooting out of the end of the brass nut while engine is running.

Answer
I have a picture of the oil filter and surrounding components but cannot determine what you are describing. If you have an E-mail address and don't mind posting it so I can scan and e-mail you this picture and you can indicate what part you need.

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