This is a BRAND NEW Aftermarket Gas Furnace HSI (Hot Surface Ignitor) for York/Coleman/Luxaire Furnaces. It is designed to replace York/Coleman/Luxaire part # 025-32625-000 (also S1-02532625000) as well as Model 1124. Simply unplug yours, and plug this one in. We also sell the OEM version of this ignitor in our store. Thank you for looking and good luck!