Staff Answer
Sep 28, 2026 - 06:19 AM
No, the 621988 has been replaced by the 637775 kit, and that's discontinued too. If the N811 optical board has 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.
