Definitely from my radiator replacement for the 1999 GMC Sonoma. The new radiator came with 2 new ones, and I didn't replace the old ones.
Thanks for the help!
Maybe a hydraulic fitting from an old Massey Ferguson (1958) tractor I used to have?
I have a GMC Sonoma and replaced the radiator a few years ago - maybe these came with the radiator and I ended up not needing them
That might explain it.
Thanks for the help. No doubt its a GM thing.
I found 2 of these while going through stuff in my garage and cannot figure out what it is and where it goes. I think it may be something with my air compressor but not sure.
Can anyone identify this? And where it is used?