Replace your laundry appliance's worn or damaged control knob with this genuine OEM knob assembly for LG devices. The knob assembly (AEZ33665708) fits a D-shaped shaft and allows you to control cycle settings with ease. If your appliance's knob is cracked, broken, or missing, this replacement will get you back in control. Sold individually, it may differ in appearance but functions equivalent to previous parts like 4940ER3015B. Verify your device's model number for compatibility before purchasing.