Help identifying part for replacement

[Michaelwnc]

93 Thomas Navistar international 3600 with dt 360. Need help identifying these valves on the bottom of my air tank. Two of them are leaking so I'm of course loosing pressure unnecessarily. Anyone know what would be the proper part name or number to get some replacements. Doesn't look like there is any way to service or tighten them. They are not leaking at the exit port but instead around the actual valve workings on either side. Thanks in advance.

[ewo1]

Originally Posted by Michaelwnc

93 Thomas Navistar international 3600 with dt 360. Need help identifying these valves on the bottom of my air tank. Two of them are leaking so I'm of course loosing pressure unnecessarily. Anyone know what would be the proper part name or number to get some replacements. Doesn't look like there is any way to service or tighten them. They are not leaking at the exit port but instead around the actual valve workings on either side. Thanks in advance.

Simple petcock valves….

[Michaelwnc]

Thanks ewo1! Is that something I could pick up at Napa? Are they generally standard size or should I remove one to take it in with me just to be sure? Thanks a million.

[BarnYardCamp]

I'd take one....

[Michaelwnc]

Will do, I figured as much but never hurts to ask. Thanks all.

[Dbacks2k4]

Petcock drain valves. I replaced mine with a different variant to make draining water from my tanks easier.

https://youtube.com/watch?v=0a6HfZ6yyY4