1. OEM Number: AC heater blower resistor replace part number are 89019100, 15‑81095, 1581772, 22807121. Please make sure the OEM number matches the part you are replacing. 2. Vehicle Compatibility: Replacement for Rainier 2004‑2007, replacement for Trailblazer 2002‑2009, replacement for Trailblazer EXT 2003‑2006, replacement for Envoy 2002‑2009. 3. Improved Performance: By ensuring the correct working of your vehicle's AC blower motor, the resistor enhances overall performance of the heating and cooling system. 4. Long Lasting Materials: Manufactured from high strength ABS materials, the resistor is sturdy and designed to last, saving you from frequent replacements. 5. Ideal Replacement: High performance replacement part, suitable for replacing damaged or old car blower motor resistors, fitting perfectly with the original car. Spec: Item Type: Heater Blower Motor Resistor Material: ABS OEM Part Number: 89019100, 15-81095, 1581772, 22807121 Fitment: Replacement for Rainier 2004-2007 Replacement for Trailblazer 2002-2009 Replacement for Trailblazer EXT 2003-2006 Replacement for Envoy 2002-2009 Replacement for Envoy XL 2002-2006 Replacement for Envoy XUV 2004-2005 Replacement for Jimmy 2002-2005 Replacement for Isuzu Ascender 2003-2008 Replacement for Bravada 2002-2004 packing list: 1 x AC Blower Motor Resistor Note: Please double check the part number of your item, matching information is for reference only.