A-Premium Heater Blend Door Actuator for GM Trucks & SUVs 2003–2014 — Direct-Fit with 1-Year Warranty

The A-Premium HVAC Heater Blend Door Actuator is a direct-fit replacement actuator that restores proper HVAC airflow and temperature control for compatible GM trucks and SUVs.

This heavy-duty replacement actuator matches OE size and specifications to replace a failed main mode/blend door actuator on many Cadillac, Chevrolet, GMC and Hummer models from the 2003–2014 model years. It's engineered to fit the same mounting points and connector types as the original part, letting you repair your vehicle's climate control without modifying wiring or HVAC components. A one-year unlimited-mileage warranty from A-Premium backs the unit for added confidence.

Will this actuator fit my vehicle?

Compatibility covers a long list of GM vehicles; fitment depends on year, make and model as well as whether your vehicle used the main or mode blend actuator in that location. Use the Year/Make/Model selector or verify the part reference numbers before ordering to ensure you get the correct actuator for your specific HVAC layout.

• Fits Cadillac Escalade (2003–2014), Escalade ESV (2003–2014), Escalade EXT (2003–2013)
• Compatible with Chevrolet Avalanche, Silverado, Suburban and Tahoe across 2003–2014 ranges listed in product details
• Works for GMC Sierra, Yukon, Yukon XL and Hummer H2 models in the years referenced
• Reference numbers: 1573952, 89018374, 604-112, 604112, 15-73952—verify against your OEM part

How does this actuator restore HVAC performance?

The actuator drives the blend/mode door inside the HVAC housing to route air and mix hot/cold streams as you select temperature and vent modes. When the original actuator fails, you can get stuck on one temperature or lose control of airflow direction; this replacement restores the mechanical movement and electrical signaling required for normal operation.

• Direct-fit dimensions and mounting for straightforward swap with original actuator
• Compatible electrical connector and gearing to match OEM movement range
• Replaces old or failed actuators without modifying ductwork or control modules

What should I check before buying and installing?

Blend door actuators come in different positions and perform distinct functions (main, mode, blend). Verify the actuator location on your vehicle and confirm the part reference or use the vehicle selector on the product page to prevent ordering the wrong unit. If unsure, inspect the existing actuator for matching mounting holes, connector type, and reference number.

• Select Year/Make/Model on the product page and click "Confirm" to validate fitment
• Compare reference numbers printed on the original part to those listed in the product details
• Note actuator position (main/mode/blend) to ensure correct function replacement

What warranty and support does A-Premium provide?

A-Premium backs this replacement actuator with a one-year unlimited-mileage guarantee. Support options and a broad selection of automotive accessories are available through A-Premium, giving you options if you need additional HVAC or electrical components during the repair.

• One-year unlimited-mileage warranty included
• Customer support for fitment questions and troubleshooting
• Wide range of accessory parts to complete HVAC repairs if needed

Who is this for: This actuator is intended for owners and mechanics working on Cadillac, Chevrolet, GMC or Hummer models from the specified years who need a reliable, direct-fit replacement for a failed main/mode blend door actuator. It’s suitable for DIY installers and professional shops that want an OEM-style fit without modifying vehicle wiring or HVAC housings.