Duralight Furnace Flame Sensor Replacement For York Coleman Evcon Luxaire S1-02527773700 Duralight Two Year Replacement Warranty Straight Flame Sensor Overall Length 3-3/4" (Not Including Electrical Terminal) Ceramic Length 1" - Flame Rod Length 2-1/2" Replaces Part Numbers 024-35354-000, 025-35354-700, S1-02527773000 and S1-02527773700