Universal Hot Surface Ignition Integrated Furnace Control. Includes 21D64-2 universal ignitor. Replaces over 200 OEM & Competitive Ignition Modules. Kits which include wire harnesses K & L, will replace Carrier Controls: HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011 or HK42FZ016