This is the replacement spark igniter or surface burner igniter for your range. This igniter has a blue tube, but the tube can come in a variety of colors, and still do the same job. The spark igniter produces the spark that lights the surface burner. The main reason to replace the igniter is if the wires shorts out, or the porcelain has cracked, and it will no longer produce a spark. If your gas igniter glows but will not light, it is a good indication that the spark igniter will need to be replaced. Be sure to turn off the gas to the range before you complete this repair. This part is sold individually and is an OEM part.