The Frigidaire 131873500 Timer Knob allows precise control over your dryer’s cycle settings for reliable and consistent operation. This control knob attaches to the dryer’s timer shaft, enabling users to select and adjust drying times with a simple turn. It works by activating the internal timer mechanism, ensuring the appliance runs for the chosen duration and stops as intended. Designed in a clean white finish to match compatible models, it also maintains the appliance’s appearance. Replacing a worn or broken knob helps restore accurate control, improves ease of use, and supports the overall functionality and dependability of your dryer.