Staff Answer
Sep 24, 2026 - 06:38 PM
The 621702 is the AC heater for the N611, but Norcold used two different heater styles on the N6XX over the years. Newer units take the 638374/ 50822 instead. The easiest way to be sure is to check the label on your old heater (it's in the burner tube area behind the fridge) for the part number or wattage, or send us your model and serial number. Since I can't confirm this 100% from here, please email us at info@rvfridgeguys.com or call 800-712-8822 with your model and serial number and we'll double-check it for you. You can also browse www.rvfridgeguys.com.
