This ignitor - flame sensor is the "Smartvalve" style used on many Comfortmaker, Heil, Tempstar, and Arcoaire gas furnaces manufactured by International Comfort Products (ICP). This part replaces the Honeywell Smartvalve combination ignitor and flame sensor as a single unit and includes the wiring harness with the proper plug connection to plug in to the Smartvalve. This connection style is used on many Comformaker, Heil, Tempstar, and Arcoaire furnace models. This ignitor - flame sensor is the replacement for Comfortmaker Heil Tempstar Arcoaire part numbers 1009524, CARL38632, CAR3UC35, CARQ3400A1024, and Q3400A1024.