The Whirlpool WPW10407678 is a range holder orifice, a small but important part of your Whirlpool gas range. It is essential for controlling the gas flow to your cooktop's burners. The orifice, nestled inside the burner assembly, functions as a little gatekeeper. It has an aperture with a specified size that regulates how much gas can flow through. The flame you utilize for cooking is then produced by combining this controlled gas flow with air. A clogged or worn-out aperture can cause disruptions to the gas flow. It's possible that your burners will not light easily, will burn unevenly, or will run at the wrong temperature. In extreme circumstances, a malfunctioning orifice may potentially cause a gas leak, which would be dangerous.