The Microwave Vent Grill is an OEM part for Whirlpool microwaves. It is designed to cover the vent openings on the microwave, allowing air to circulate while preventing debris from entering the appliance. The vent grill plays a crucial role in maintaining proper airflow and ensuring the microwave operates efficiently. Over time, exposure to heat and cooking residues can cause the grill to deteriorate, impacting its functionality and the overall appearance of the microwave. Symptoms of a bad vent grill include: Visible cracks or damage to the grill Discoloration or warping from heat exposure Loose or missing pieces Reduced airflow or ventilation issues This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models. Color: White. Black: 8183851 Biscuit: 8183852 Stainless: 81846088183948 (AP3119831) replaces 4393727, 4393773, 8169463, 868773, AH391973, EA391973, PS391973.