Staff Answer
Sep 27, 2026 - 06:27 PM
With serial 1281736, your N821LT is below 9126825, so the 637779 kit is the one. It's discontinued now, though. If your boards have failed, the fridge would need to be replaced, and the Norcold N8X is the current replacement.
If you have any questions, just reach out at info@rvfridgeguys.com or call us at 800-712-8822. You can find everything we carry at www.rvfridgeguys.com.
