Norcold Lower Refrigerator Shelf 632443 (fits the newer N410/ N412/ N500/ N510/ N512) This shelf fits all N5XX models with a serial number above 18721783. Fits these Norcold refrigerator models:N410 / N412 series: N410, N410U, N410.3, N410.3U, N412, N412U, N412.3, N412.3U, N412.3FN510 / N512 series:... See More