The Whirlpool WP74011550 is a replacement burner control knob intended for Whirlpool brand ranges. This knob serves as a conduit between you and your cooktop's gas burners. Usually, it has indications for the flame level settings—from low to high—as well as a potential "off" position. Turning the knob is all it takes to adjust the burner flame. Depending on the setting chosen, the knob's connection to a valve stem controls the amount of gas that flows to the burner, producing a bigger or smaller flame. Replacing a broken or damaged knob with an authentic Whirlpool WP74011550 assures appropriate operation and continuous safe cooking on your Whirlpool range. Broken or damaged knobs might make it difficult or impossible to manage your burners safely and effectively.