Staff Answer
Sep 24, 2026 - 09:01 PM
I wouldn't do that. On the N51X, the heater tubes are made for specific heaters (AC and DC on 3-way models), and swapping them can damage the heaters or the cooling unit. Also note that the 630804 AC heater has been discontinued. If the old heater is stuck, penetrating oil and patience usually free it. Our tech support service can walk you through it. 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.
