Purchased new ones top and bottom. Parts arrived several days ahead of schedule (thank you) .Found a repair video on YouTube and installed the new parts accordingly. A few tips; since you have to remove the control panel from the microwave take a photo of the connections prior to disconnecting them, this is especially helpful on the relays on the interlocks as the connection type is the same. Also note the cam on the new parts was locked back for easier install, but don’t forget to move it into position so the door latches.