Paula B Vestavia Hills , AL May 16, 2018 Appliance: Model MODEL NUMBER IS ON THE APPLIANCE SOMEWHERE Plastic ring under plate in microwave didn't fit, it wobbled Appliance Parts Pros sent me the new one I ordered by using the serial and model numbers inside the microwave door and the maker's name. The new one fits and so far it is working just fine. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes