The Whirlpool 74003944 serves as an authentic substitute ignition knob intended for Whirlpool, Amana, Magic Chef, and select Maytag range models. This knob controls your stovetop's gas burners. When cranked, it releases a tiny quantity of gas and ignites it with a spark, enabling you to easily light and regulate the flame on your burners. Replacing an obsolete or flawed ignition knob is a relatively easy step that will reestablish your range's functionality. The new knob is typically placed on the burner control shaft and links to the previous ignition system. Following setup, simply turn the knob to turn on the igniter and light the burner. Having a functional ignition knob has multiple benefits. Most importantly, it ensures security and ease of burner operation.