let me clear things up a little bit. There are 2 o-rings for the level gauge. One is on the tube itself and the other is on the flange piece which is located on the inside of the pan. If the one on the insode of the pan is leaking putting an o-ring on the tube will not correct it. This kit 1846146C91 from International is used to repair a leak at the flange w/o removing the pan.