I replaced the stem in my 2016 one twice. Installed the new “Brass” one about 6 months ago. But this one comes with a 5 year warranty. I like that I do not need to switch the selector when I want to switch from city water to tank water. Just disconnect the water hose and turn on the pump.
I bought mine directly from Anderson. Not sure how the inventory levels are because of Covid.
2015 Ram 3500 Regular Cab DRW CTD Asian trans 410 rear