Kenmore Glass Turntable Plate / Tray 12 1/2 " # 3390W1A027 This microwave rack ONLY fits the Kenmore models listed below. If you are unsure about compatibility please email us with your model number BEFORE ORDERING. Replacement glass plate / tray for Kenmore microwave ovens. Measures approximately 12 3/4 inches in overall diameter. Outside diameter of turntable track is 11 inches. This microwave tray replaces Sears part # : 3390W1A027