This refrigerator defrost drain pan collects water produced during the automatic defrost cycle and helps manage moisture inside the appliance. Positioned near the bottom of the refrigerator, it allows collected water to safely evaporate with the heat generated from normal compressor operation. This part may need replacement if the existing pan becomes cracked, warped, or damaged, leading to water leaks, excess moisture, or unpleasant odors around the refrigerator.
OEM stands for Original Equipment Manufacturer. Simply put, this means that the company who made your appliance is also supplying the replacement part for it.