Staff Answer
Sep 26, 2026 - 09:55 AM
No. The 618548 is for the older N6XX/N8XX and 900/9000 models, and it's been discontinued. For your Polar N8XRT you want the thermistor 638391/50824, which fits all the Polar N7X, N8X and N10X models and is in stock.
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.
