Pro Star Air tanks

[DVT873]

Back when those fittings were available we had less than a 50% success rate with replacing o'rings or fittings. Problem was deicing salts and chlorides could work their way in and even get past the o'rings. Even if that crap didn't get past the o'ring it still ate up the bore. Pushing the new fitting in would damage the o'ring. Even if you got in there and tried to clean up the surface. That is assuming you could even get the snap ring out. The snap ring groove would get screwed up and the snap ring wouldn't seat. Snow plow trucks were the worst.