[1retired06]

I have replaced three times over the years. At least with Whirlpools, I was able to use the existing wall mount each time. Simply set the vent, the wall mount is a hook setup, drop the back of the microwave onto the mount, swing up, and there are two bolts through the cabinet into the top of the microwave. On one install, I did have to drill holes as the existing ones did not match up. MWs for the most part come in standard sizes, and I had no problems finding one that fit.