Good gravy youse guys are simply A-M-A-Z-I-N-G!
Looking around my own house I found several low voltage power adapters that have similar plugs but as expected none were/are an exact match. (Also contacted the original seller for replacement parts, still waiting a reply from them.) Thanks for inspiring me to look more "locally" aka inside my own place.
It makes sense Jack's RoadPro part would/could be the perfect fit as the needed cord fits a 12 VDC portable combo heater/cooler of the vehicle type: https://www.equalizerfusion.com/Prod...uctDetail/1434
Using the RoadPro number as a search parameter there's a plethora of similar cords available.
Originally bought to keep my work materials warm during the winter have recently begun using it to cool drinks during the summer months---it works amazing. Being a bit anal and "needing" replacement parts long before they're really really necessary I hope to have one at the ready.
Thanks again Guys & Gals----life savers ya'all are!