HVAC Heater Blend Door Actuator for Buick, Cadillac, Chevrolet, GMC, Isuzu Replacement Part

Restore precise climate control in your GM family vehicle with this HVAC Heater Blend Door Actuator. Designed to fit Buick, Cadillac, Chevrolet, GMC, and Isuzu models, it replaces several OEM numbers and brings back reliable heating and cooling performance. If your heater won’t switch between hot and cold or the temperature seems stuck, this replacement part helps you reclaim comfort without a costly dealership visit.

Main Description

This blend door actuator is a compatible replacement for OEM numbers 15-73599, 604-120, 89018373, 89018678, and 52474795. It serves a broad array of vehicles from the early 2000s, including 2000–2007 GMC Yukon XL 1500/2500, 1999–2006 Chevrolet Silverado 1500, 2003–2006 Cadillac Escalade and Escalade ESV/EXT, 2003–2009 Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, Buick Rainier, and various Silverado/Sierra Classic models, among others. When the blend door system can’t accurately direct air to cooling or heating, this actuator provides the precise control your climate system relies on for a comfortable ride.

Crafted as a practical replacement part, it enables quick DIY repairs or a straightforward service shop job, helping you fix common HVAC complaints such as uneven cabin temperatures, delayed heat or cool air, and fluctuating fan responses. With broad vehicle coverage, it’s a reliable option for owners who want to keep their climate control consistent across multiple GM-era vehicles.

Benefits & Tips

• Restore reliable temperature control: Fix temperature inconsistencies and regain the ability to direct air where you want it, when you want it.
• Simplify DIY maintenance: A straightforward replacement that reduces downtime and avoids costly dealer repairs.
• Compatibility assurance: Confirm your vehicle’s compatibility with OEM numbers 15-73599, 604-120, 89018373, 89018678, and 52474795 to ensure a correct fit.

Product specifications

• Brand: NONE
• Interchange Part Numbers / OEM No.: 15-73599; 604-120; 89018373; 89018678; 52474795
• Special Features: A/C Heater Blower Motor Resistor
• Origin: Mainland China
• Application: Fits a wide range of models including 2000–2007 GMC Yukon XL 1500/2500, 1999–2006 Chevrolet Silverado 1500/2500/3500, 2003–2006 Cadillac Escalade family (Escalade, Escalade ESV/EXT), 2003–2009 Chevrolet Trailblazer, GMC Envoy, 2003–2006 GMC Sierra/Silverado Classic, 2007 Chevrolet Silverado/Sierra Classic, 2000–2007 GMC Yukon XL, 1999–2009 Isuzu Ascender, 2004–2007 Buick Rainier, and related pickups (Mexico variants included).
• Package contents: 1 x PCS
• Note: This part is intended as a replacement for the listed OEM/interchange numbers and compatible model years. Always verify the part numbers match your original unit before installation.

Package includes:

• 1 x HVAC Heater Blend Door Actuator

Warnings / Reminders

• Compatibility is based on the listed OEM/interchange numbers and model years. Please verify that 15-73599, 604-120, 89018373, 89018678, or 52474795 match your vehicle’s original part.
• Professional installation or a qualified DIY approach is recommended to ensure proper function of the HVAC system after replacement.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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