The old cartridge looked fine from the outside. I think the cap was over tightened with a rubber washer in the bottom and a little cold expansion blew it out.
I ran the washer and dishwasher a little while ago, no leaks!
Program and install my TPMS tomorrow and we are ready!
Vance and Robin
Winston (Old English Sheepdog)
2018 Entegra Coach Cornerstone 45Y