The Whirlpool W10859921, specifically the venturi tube, is an important component in gas ranges. The correct mixing of gas and air inside the burner is largely dependent on this small tube. Envision a tiny wind tunnel. A region of low pressure is created as natural gas passes through the venturi tube. A well-balanced air-fuel mixture is produced when the surrounding air is drawn in by the lower pressure. After that, the burner head receives this blended mixture, which effectively ignites to provide a regulated and pure flame. This air-gas ratio can be upset by a malfunctioning venturi tube, which could result in weak flames, uneven cooking, and even possible safety risks.