Staff Answer
Sep 24, 2026 - 07:07 PM
The 638997 front optical board fits the NX641, NXA641, NX841 and NXA841 regardless of serial number, so it would fit your NXA641R. Unfortunately, it has been discontinued by Norcold and we're out of stock. 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.
