This LG Part is for MJS63771901 MIcrowave Glass Turntable Tray, Disconnect the power before installing this part.Always wear work gloves to protect your hands. Please be aware that it is recommended to use safety equipment and to disconnect the appliance from all utilities prior to any service or repair. Please refer to your owner’s manual to confirm part numbers and for instructions as some repairs require a trained service professional to complete. When ordering parts from the website, please verify your part number is correct for your model before ordering. Parts may look the same but the size and shape can have small variations.