Need to replace this switch. The ones I get have 2 tits coming out the front and the switch is too big to to fit in were the old one came out. The one I am trying to replace has 2 wire coming out of the switch and the inside is concaved. Does anyone have one for sale or know where I can find on

That sounds like the water temperature switch what the 75 and 76 had. Has nothing to do with the engine fan as the fan is mechanical not electrical. I believe it's function was to operate the EGR solenoid. It might be a tough find as they're no longer in stock through Nissan as per a thread a couple years back. 22120-N4202 is the part number if that's of any help. If you search that number I'm sure a few threads on the subject will come up.