I replaced my brake master cylinder today and accidentally broke off a little yellow sensor that was screwed into this little metal block that connects all the brake lines together and joins them with the master cylinder. I don't have access to a junkyard that will let me pull the part i need, and i have no idea what it is called or its part number to search for one on the internet. For the time being my friend and I rigged up a plug for where it screws into the block and it doesn't seem to be leaking right now. I would like to fix it properly though if possible.
I have a 93 Jeep Grand Cherokee 4.0L V6 4WD
Below is a picture of what I'm talking about. It's the little yellow thing in my hand. The threaded part was broken off so I'm holding it up near where it screwed into the metal box.
Any know the name of this part or its part number?