The Cooking Tray is an OEM part for GE microwaves. This glass tray rotates to ensure even cooking and heating of food. It is designed to fit perfectly in the microwave, providing a stable platform for cookware and dishes. Over time, the cooking tray can become damaged or worn out due to regular use, accidental drops, or exposure to extreme heat. Replacing a damaged cooking tray is essential to maintaining the microwave’s functionality and ensuring food is heated evenly. Symptoms of a bad cooking tray include: Cracks or chips in the glass Difficulty in rotating or wobbling during operation Uneven cooking or heating of food The tray not fitting properly in the microwave This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.WB49X10063 (AP3190166) replaces WB39X10038, WB49X10141, WB49X10193, 907966, AH250009, EA250009, PS250009, WB49X10096.