This is an OEM part sourced directly from the manufacturer. This switch kit is designed to help you operate the 8? surface burner on your range or cooktop. This witch turns the surface burner on and off, and allows you to control how much heat the element is producing. The control knob attaches to this part for easy operation. This kit comes with all of the hardware you will need to successfully install the replacement switch. Before beginning the repair make sure you have unplugged your appliance.