Ditto on the bypass tube. Unless it's caved in from somebody using channel locks on it, they seem to last darn near forever, even when they're on the thin side. As far as the heater hose outlet, I'd probably replace it. Some Kroil, patience and maybe a little heat should get it out without much issue. Sometimes it takes a few days of spraying, heating and gentle persuasion, but I've never had one that wouldn't come out. Being an iron intake, heat really helps.
