A-Premium HVAC Heater Blend Door Actuator for GM Vehicles — Replaces 20826182, 5-Pin Direct Fit

The A-Premium HVAC heater blend door actuator is a direct-replacement 5-pin unit that restores proper cabin airflow and temperature control for select Buick, Chevrolet, GMC, and Saturn models.

If the temperature in your vehicle won’t change, vents are stuck between hot and cold, or the HVAC system makes clicking noises, a faulty blend door actuator is a common cause. This A-Premium main heater air door actuator replaces OE part numbers such as 20826182 and equivalent references, and is built to match the original fit and function so you can return the climate controls to normal operation.

What vehicles and part numbers does this actuator replace?

This actuator is designed for direct fitment on several General Motors platforms from the late 2000s and early 2010s. Confirm your vehicle’s year, make, and model before ordering to ensure compatibility.

• Compatible with Buick Enclave (2008–2012)
• Compatible with Chevrolet Traverse (2009–2012)
• Compatible with GMC Acadia (2007–2012)
• Compatible with Saturn Outlook (2007–2010)
• Reference/alternate numbers: 604-140, 604140, 15-73989, 20826182, 15232218, 25782069, F04059

How does the A-Premium actuator restore HVAC performance?

The blend door actuator moves internal doors inside the HVAC box to direct airflow and mix hot and cold air for the selected cabin temperature. Replacing a worn or failing actuator eliminates erratic vent behavior, clicking noises, and incorrect temperature output.

• Controls airflow direction and temperature mixing in the HVAC system
• Replaces malfunctioning actuator to regain proper vent operation
• Designed to match OEM mounting points and electrical connector for a straightforward swap

What should I know about installation and electrical connections?

This unit comes with a five-pin electrical connector and installs in the same location as the factory actuator. After installation, a calibration or relearn procedure is typically required so the HVAC control module recognizes the actuator’s endpoints.

• Includes 5-pin connector matching original wiring harness
• Simple bolt-on replacement—verify orientation and torque on fasteners
• Perform actuator calibration/relearn after installation for correct travel limits

What warranty and quality assurances are offered?

A-Premium backs this blend door actuator with a one-year unlimited-mileage guarantee, covering defects in workmanship or materials. The part is produced to meet fitment and function expectations for the referenced GM vehicles.

• One-year unlimited-mileage warranty from A-Premium
• Manufactured to match OEM specifications and connector type
• Buy with confidence guidance: confirm vehicle info and any special notes before purchase

Who is this for: This A-Premium HVAC heater blend door actuator is intended for DIY mechanics, professional technicians, and vehicle owners who own compatible Buick Enclave, Chevrolet Traverse, GMC Acadia, or Saturn Outlook models and are experiencing HVAC control issues. If you need an OE-style replacement with a 5-pin connector and want a part covered by a one-year warranty, this actuator provides a direct-fit option to restore airflow control and interior temperature regulation.