Norcold Burner/ Orifice Assembly 621955 (N400/ N500/ N41/ N51/ N305/ N306) This is the burner assembly (burner and orifice) that fits many smaller model Norcold refrigerators. Fits these Norcold refrigerator models:N410 / N412 series: N410, N410U, N410.3, N410.3U, N412, N412U, N412.3, N412.3U, N412.... See More