The 12007259 is a genuine Bosch Ignitor Switch. The Bosch 12007259 triggers the spark ignition system to ignite the burner. It is recommended to either refer to your appliance service manual, contact your appliance manufacturer, or contact a service professional to validate the needed part number for your appliance prior to purchasing. The Bosch 12007259 Ignitor Switch fits the following brands of ranges: Bosch The 12007259 is a new part that doesn't replace any other part.