Staff Answer
Sep 25, 2026 - 07:01 AM
Hi Mike, glad to help. The DC Board 637764/628669 you asked on has been discontinued by Norcold. The N843 fridge is discontinued too, and Norcold's replacement for it is the Norcold N8X 8 cu ft refrigerator. See our Norcold replacement guide.
To fix your N843, a good choice is the Dinosaur 6212XX board, which is in stock and made for the N6XX/N8XX. The OEM Norcold 628661 also fits many N8XX models, but on older wiring it can need an adapter kit that's no longer available. The right choice depends on your 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.
