The Whirlpool WPW10157419 has become a range holder orifice, a vital component of your gas range's burner system. It's a small, typically metal component that holds the orifice, a tiny nozzle that controls the flow of gas to the burner. The orifice size determines your burner's flame size and heat output. When you turn the burner knob, gas flows through the gas line and into the orifice holder. The orifice restricts gas flow, leading to increased pressure and a controlled stream of gas exiting through the burner cap. This regulated gas mixes with air and burns, culminating in the burner flame. A functioning range holder orifice ensures that your gas range works effectively and securely.