Is this after market

[MCH86GN]

This bell housing, I believe is an aftermarket oil pressure transducer. It has a connector to it and it splits into two wires. Here is a picture of my old one. If anyone knows let me know, I need to figure out how to disconnect the existing wiring, because my oil pressure doesn't read correctly anymore. A shop recommended a place for a replacement and I got it, now my stock oil pressure gauge remains at 100psi.

 

[BlackBandit]

The one with three prongs is factory. The tee and the otherone (with the arrow pointed at it) are aftermarket.