*** Note: This glass tray has 3 partial-circles to engage the coupler. In some cases, the factory used a tray that has 3 triangles. For that glass tray use part# W11367904. *** The Cooking Tray is an OEM part for Whirlpool microwaves. This glass tray sits on the turntable support and rotates to ensure that food heats evenly throughout the cooking cycle. It is designed to fit securely within the microwave, providing a stable platform for various dishes and containers. Over time, the cooking tray can become damaged due to regular use, drops, or exposure to extreme temperatures. If the tray is cracked or broken, it can lead to uneven cooking and potential safety hazards. Symptoms of a bad cooking tray include: Visible cracks or chips on the glass surface The tray not rotating properly Uneven heating or cooking of food The tray wobbling or not fitting securely on the turntable support This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.  This part fixes the following symptomsTray won't turn4393799 (AP3130793) replaces 4393751, 588305, 8206226, AH373741, EA373741, PS373741.