Kitchen Aid Glass Turntable Tray / Plate 11-7/8" 4393799 by ERP 30QBP4185 Glass Turntable/Carousel tray for Kitchen Aid Microwave Ovens Measures 11-7/8" in diameter. Outside diameter of turntable track is 9 inches. Outside diameter of turntable track is 9 inches. This microwave plate replaces Kitchen Aid: 4393799 8206226 This microwave tray fits the Kitchen Aid models listed below.