The Mounting Plate is an OEM part for Whirlpool microwaves. This part is designed to mount and stabilize the microwave over the range, ensuring it is safely anchored in its designated space. The mounting plate serves as an interface between the microwave and the wall or cabinet, distributing the weight evenly and providing a firm foundation for the appliance. Causes of a bad Mounting Plate can stem from improper installation, which may lead to undue stress and eventual warping or weakening of the material. Symptoms of a bad Mounting Plate include: Loose microwave unit Difficulty in aligning or installing the microwave  Visible signs of wear, rust, or damage on the plate This OEM Whirlpool part can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore/Sears brand appliances.W11025649 (AP6245752) replaces W10440498, 4545957, PS12074431, W10245177.