PartsSquare Manual A/C Heater Blower Motor Resistor 89019100 Replacement for 2004 2005 2006 2007 BUICK RAINIER 2002 2003 2004 2005 2006 2007 2008 2009 GMC ENVOY 2002 2003 2004 OLDSMOBILE BRAVADA Replaces dealer part numbers of Blower Motor Resistor: 89019100, RU377, 973008, 52409643, 89018439, 89018604, 1581772, 1580860, 1581095, 22807121, 3A1296, 15415789, 1580858, 20299, 84049100, DR755, 15373437 Blower Motor Resistor Fitting for the following years and models: 2004 2005 2006 2007 BUICK RAINIER, 2002 2003 2004 2005 2006 2007 2008 2009 CHEVROLET TRAILBLAZER Manual A/C Heater Blower Motor Resistor Replacement for 2002 2003 2004 2005 2006 2007 2008 2009 GMC ENVOY, 2003 2004 2005 2006 2007 2008 ISUZU ASCENDER, 2002 2003 2004 OLDSMOBILE BRAVADA. 100% Brand New and tested prior to leaving the factory. Not remanufactured or rebuilt. High Quality Replacement Part. 1.Cut off the engine and disconnect the battery. 1. Wait until the blower motor cool to room temperature. 2. The most important is clearing dust for the blower motor via professional motor detergent, please dont use water to clean!!! 3. Wait until blower motor get dry. 4. Disconnect the electrical connector at the resistor. If the new blower motor resistor didn&#039;t work after correct replacement, your blower motor might had worked abnormally before your replacement. Replacement: Remove the negative battery terminal. Locate the blower motor resistor on the passenger side under the dash board. It is mounted to the the blower housing near the blower motor. Disconnect the electrical connector to the blower motor resistor. Remove the screws or bolts to the blower motor resistor and remove the resistor. Installation is the reverse of the removal. Not remanufactured or rebuilt. High Quality Replacement Part. Exact Fit for easy installation. 100% Brand New and tested prior to leaving the factory.