ZTUOAUMA Adjustable Oil Pressure Switch Sensor 765754 76575-4 4D-4785 1/8-27NPT Highest to 7 PSI Normally Open for Hobbs Honeywell M4006-4 Caterpillar CAT 2Y-4439

just what i needed to replace switch on an old tractor rebuild.

worked

The brakes lights were not turning on when I pressed the brake pedal on my diesel pusher motorhome. The two original pressure switches were not closing so I replaced them with two of these switches, since they have the same 4 psi trigger threshold. I had to use a 1/4" to 1/8" NPT adaptor pushing ($6 on Amazon) to fit the 1/4" threaded opening on the brake pedal. They work great so far. Time will tell how long they last.

The mounting 1/8" pipe threads fit exactly. This was my biggest concern. The failed switch I replaced with this one had an integral ground that worked through the treads, but this one has a separate terminal that I wired directly to ground. I liked that because proper grounding is assured. I bench tested this switch for activation pressure and saw it go on at exactly 4 psi as advertised. Great switch and is priced right too.

I’m using this for the methanol injection kit on my audi and it works great. The threads are hard to find fittings for so I just re-tapped the end of it to a more standard thread that I could find fittings/nuts for. Way cheaper and wayyyy higher quality than the crappy plastic switch that came with the snow performance methanol kit. This one it actually solid and feels really nice compared to that one

wouldnt buy. shouldve bought the right part name brand and had my generator up and running last year

Used it on a generac generator and it worked

I use the pressure switch to monitor the boiler pressure low setpoint of 4 psi. It is wired to the alarm system and will beep the keypads and send a text if tripped.