The Microwave Vent Grille is an OEM replacement part specific to Whirlpool microwaves. It is positioned at the top of the microwave above the magnetron to allow heat to properly vent when cooking or reheating foods. The vent grille is designed with openings that protect against accidental contact with internal components while circulating warm air to maintain safe temperatures. The vent measures 30 x 3.5 inches. Causes of a bad Vent Grille can include physical damage from impacts or mishandling, warping or discoloration due to exposure to heat, or wear and tear over time. A compromised vent grille can affect ventilation efficiency and the microwave’s performance. Symptoms of a bad vent grille include: Excessive heat buildup inside the microwave cavity Warm areas around the external casing and control panel Burning or uneven heating of foods Potentially hazardous situation if the magnetron overheats This OEM Whirlpool replacement part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models. Color: Black - For white order 8183948. For biscuit order 8183852. For stainless orders 8205008This part fixes the following symptomsDoor won't close8184608 (AP3133625) replaces 8169507, 920172, AH392273, EA392273, PS392273.