Staff Answer
Sep 24, 2026 - 07:51 PM
That number looks like a serial number from the board itself rather than a Norcold part number. If it's the top control board on an N15DC or N20DC, the replacement is the 641043 control board, which fits both models regardless of serial number and is in stock. If it came off the rear power board, it may be the 640178/ 50907 control module instead. 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.
