Staff Answer
Sep 26, 2026 - 07:35 AM
I can't confirm the 620863 (newer style) works on your older N300 serial. The wiring and mounting differ from the 619168. Both have been discontinued by Norcold. The N300 is discontinued too, and Norcold's replacement is the Norcold N4150. See our Norcold replacement guide.
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.
