The Control Knob is an OEM part compatible with Whirlpool cooktops. It is a crucial component that allows you to control and adjust the temperature or heat settings of individual burners or heating elements on the cooktop surface. Symptoms of a bad Control Knob include: Difficulty turning or adjusting the knob Knob feeling loose or wobbly Incorrect temperature or heat settings when using the knob Knob falling off or detaching from the control panel Causes of a bad control knob can include general wear and tear over time, physical damage from impact or excessive force, or issues with the internal mechanisms or connections that facilitate the knob's operation. This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore cooktops and ranges.8286096WH (AP3865759) replaces 1179221, 8286096BT, AH987637, EA987637, PS987637.