Check the listing for details. Blower Assembly 70-23641-81 Protech - Fasco. Condition: New. Listed at 289.99 USD. Rheem Ruud Weather King Corsaire Furnace Inducer Motor 70-23641-86 This is an BRAND NEW OEM Rheem/Ruud/Weather King/Corsaire Furnace Inducer Motor / Exhaust Motor.The Rheem/Ruud/WKing/Corsiare #s 70-23641-81 (Fasco #s 70219567 & 7021-9137). Inducer motor is 208-230 volt and 3200 rpm. Motor does come with a new gasket. .Thanks for looking and good luck!Function: An inducer motor is designed to expel the exhaust gas from the furnace. Older inefficient furnaces allowed the flue gas to escape the unit with virtually no resistance. Newer high efficient furnace heat exchangers are so restrictive that the flue gases cannot exit the furnace though “natural draft”. Therefore, the inducer is required to pull the flue gases through the heat exchanger. The inducer motor is usually the first thing that starts up when your furnace calls for heat.Replaces Old Part #s: 70-23563-02 70-23641-81