The Cooking Tray is an OEM part for Bosch microwaves. As the centerpiece of the microwave, the cooking tray ensures even cooking by rotating food items during the cooking cycle. It supports dishes and rotates continuously to evenly distribute microwave energy throughout recipes. Causes of a bad cooking tray can include wear and tear due to extended use over time. Food splatter or spills left inside the microwave may damage or corrode the tray. Accidental dropping or cracking of heavier dishes placed on the tray can also cause issues. Symptoms of a bad cooking tray include: The tray not spinning or rotating properly during cooking Unevenly or partially cooked food Loud grinding or scraping noises coming from the tray Cracks or breaks visible in the plastic surface This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select Kenmore models.00487763 (AP2837534) replaces 1052164, 35-00-825, 487763, AH3471181, EA3471181, PS3471181, PS8721452.