Why waste money on a whole new handle just because this little bracket broke? It broke on our microwave and we have been using this mount for about nine months without issue. Our microwave model number is ME21R7051SG and it just slides into place. There are no built-in threads because that never seems to work for me, I just used a larger bolt and drove it straight through the bracket, basically a self-tapping sort of thing. Very easy to throw in.

I do believe that the top and bottom mounts are actually different designs, not just turned upside down, so unfortunately this will only work for the bottom. It is already to scale though, I added a picture of how I drew on my supports, I printed it upside down for simplification. Let me know if you have issues printing.