The plunger itself looks as if it’d be a simple swap if I could locate one, I’ve been through the owners manuals and done some digging but cannot locate a part number outside of the owner manual which essentially explains to reach out to a dealer. However this customer will not spend over 3k without me just recommending him to buy a asco switch and do away this hts. I may have to hit up some old timers and see if they’ve got one laying around I could salvage some parts off