The Wave Guide Locking Button is an OEM part for GE microwaves. This small yet essential component secures the wave guide cover in place, ensuring that the microwave's internal components are protected from food particles and debris. It plays a key role in maintaining the microwave's efficiency and safety. Causes of a bad wave guide locking button can include regular wear and tear, damage from frequent use, or accidental breakage. If the locking button is compromised, the wave guide cover may become loose, leading to potential damage or inefficiency in the microwave's operation. Symptoms of a bad wave guide locking button include: Wave guide cover becoming loose or falling off Difficulty securing the wave guide cover in place Rattling noise inside the microwave Visible damage or wear on the locking button This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models. Note: This part is a quantity of one. Order quantity needed.WB03X27704 (AP6783280) replaces WB02X10997, 4813990, PS12582530.