Staff Answer
Sep 28, 2026 - 06:25 AM
With serial 1240732, your N821RT is below 9126825, so it takes the 637779 kit, which is discontinued now. The 621268001 is for the N41X/N51X, so it won't fit. If your boards have failed, the Norcold N8X is the replacement fridge.
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.
