I changed out my water pump, the top inlet pipe that that pushes into the pump Y's off and runs back toward the fire wall crumbled away where the O-ring attaches. After searching my local parts stores without any luck I jammed two thinner O-rings on what was left of the tube, gooped high temp gasket sealer, put it back together and let it dry. So far so good, for a temp fix. Please help........ What is that thing called, I cannot find it anywhere?