MH1141XMB1 Whirlpool Microwave - Instructions

removed perimeter screws from the bottom side and the lower cover is hinged at the wall side. Motor is visible and easily removed with two screws. Take of the old one, install the new one, and reverse the procedure to put the bottom cover back in place. Will nee helper to hold one side of the bottom until couple of screws can be put in on the other side.

Wedged grill into open space and screwed in with existing screws

Not so sure this would qualify as "instructions", but I only needed a screwdriver because the "D" rings of the old vent filters broke off and I had to pry to old ones out. Keep in mind, I am mechanically disadvantaged and can barely change an A/C filter ... that being said, all I did for this order was input my Model number and PartSelect found the correct replacement part. I receive the parts super quick (faster than the other 2 purchases I did that day). The only bummer was the packaging ... super huge box for small tiny parts. Otherwise, I now know where to go for replacement parts. This project should be a "no-brainer" for most DYI's, so getting the right parts with just a model number was lifesaving for me :0)