Staff Answer
Sep 27, 2026 - 06:28 PM
Yes. With serial 911018, your N621 is below 9126825, so the 637779 kit is the right one. It replaces both the rear power board and the front optical board as a matched pair, so it doesn't matter which optical board was put in before. Heads-up: the kit is discontinued now.
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.
