This Knob is an OEM part for Frigidaire dryers. This component is an essential part of the dryer's control panel, allowing you to select and adjust various settings and cycles. It provides a tactile and user-friendly interface for operating the dryer. Causes of a bad knob can include wear and tear, accidental damage, or improper handling. Symptoms of a bad knob may include: Cracks, breakage, or detachment from the control panel. Difficulty in turning or adjusting the settings. Inaccurate selection of desired settings. This OEM Frigidaire part can also be used on Electrolux, Frigidaire, Gibson, Kelvinator, Westinghouse, and Sears/Kenmore.Part Number 131965300 (AP2107936) replaces 131666607, 131666601, 131666604, 131666606, 820923, AH419092, EA419092, PS419092.