Dorman 604-704 HVAC Blend Door Actuator - Main

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Dorman 604-704 HVAC Blend Door Actuator - Main

Brand	Dorman 604-704
Position	Main
Material	Plastic
Package Contents	1 Air Door Actuator
Switch Activation Type	Rotary
Terminal Gender	Male
Terminal Quantity	5
Terminal Type	Pin
Fits	Chevrolet, GMC, and Cadillac · 84 vehicles

OE-style replacement. Precision-engineered to match original quality and performance.

Rotary design. Uses a rotary switch activation for smooth HVAC control.

Plastic housing. Lightweight construction with a 5-pin male terminal connection.

Cross-references Standard Ignition ADR4275, 22808882 and ADS4275 for the same application. See all 3.

$53.81Free shipping

In stock · usually ships same day before 1pm CST

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Dorman HVAC Blend Door Actuator 604-704

Dorman 604-704 is an HVAC heater blend door actuator built to match the fit and function of the original unit on specific GM trucks and SUVs. It uses a rotary switch activation design with a 5-pin male terminal layout and a plastic housing for direct replacement service.

Compatible with applications such as Chevrolet Silverado 1500, GMC Sierra 1500, Cadillac Escalade, and Chevrolet Tahoe, this HVAC blend door actuator helps restore proper air distribution and temperature control. This part cross-references Standard Ignition (e.g., ADR4275) for the same application.

Key Features

HVAC blend door actuator for heater and air distribution control
Rotary switch activation type
5-pin male terminal configuration
Plastic housing for OE-style replacement fitment
Matches original equipment quality and performance on listed vehicles
Direct replacement for select Cadillac, Chevrolet, and GMC applications

Detailed Description

This Dorman HVAC blend door actuator is engineered for specific 2014-2020 GM vehicles, including Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, Tahoe, Suburban 3500 HD, GMC Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Yukon, Yukon XL, and Cadillac Escalade models. It is designed to replace the original blend door actuator used in the HVAC system, helping the system move the air door as commanded by the climate controls. Part number 604-704 is a practical OE-style solution when the original actuator is worn, noisy, or no longer responding correctly.

What It Helps Fix

Temperature stuck on hot or cold
Airflow not changing between vents, floor, or defrost
Clicking or ticking noises from behind the dash
HVAC blend door movement that is slow, erratic, or unresponsive
Loss of proper cabin comfort control in the climate system

Installation Notes and Tips

Verify the terminal count, terminal gender, and rotary activation style before installation. Confirm the vehicle application by year, make, model, and HVAC position, since this part is listed for the main position only. After installation, cycle the ignition and HVAC controls to allow the system to relearn actuator position if required by the vehicle.

Quality Assurance

Dorman 604-704 is precision-engineered to match the quality and performance of the original blend door actuator on the listed applications. It is a direct replacement part for select Chevrolet Silverado 2500 HD, GMC Yukon, and Cadillac Escalade fitments, with OE-style construction intended for dependable HVAC service.

This part fits 84 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Position	Notes
2020	Cadillac	Escalade	Main	Packaging Type: Box
2020	Cadillac	Escalade ESV	Main	Packaging Type: Box
2020	Chevrolet	Tahoe	Main	Packaging Type: Box
2020	GMC	Yukon	Main	Packaging Type: Box
2020	GMC	Yukon XL	Main	Packaging Type: Box
2019	Cadillac	Escalade	Main	Packaging Type: Box
2019	Cadillac	Escalade ESV	Main	Packaging Type: Box
2019	Chevrolet	Silverado 1500 LD	Main	Packaging Type: Box
2019	Chevrolet	Silverado 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2019	Chevrolet	Silverado 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2019	Chevrolet	Suburban 3500 HD	Main	Packaging Type: Box
2019	Chevrolet	Tahoe	Main	Packaging Type: Box
2019	GMC	Sierra 1500 Limited	Main	Packaging Type: Box
2019	GMC	Sierra 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2019	GMC	Sierra 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2019	GMC	Yukon	Main	Fits vehicles requiring outside air, comes in a box.
2019	GMC	Yukon XL	Main	Fits vehicles requiring outside air, comes in a box.
2018	Cadillac	Escalade	Main	Fits vehicles requiring outside air, comes in a box.
2018	Cadillac	Escalade ESV	Main	Fits vehicles requiring outside air, comes in a box.
2018	Chevrolet	Cheyenne	Main	Fits vehicles requiring outside air, comes in a box.
2018	Chevrolet	Silverado 1500	Main	Fits vehicles requiring outside air, comes in a box.
2018	Chevrolet	Silverado 2500	Main	Fits vehicles requiring outside air, comes in a box.
2018	Chevrolet	Silverado 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2018	Chevrolet	Silverado 3500	Main	Fits vehicles requiring outside air, comes in a box.
2018	Chevrolet	Silverado 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2018	Chevrolet	Suburban 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2018	Chevrolet	Tahoe	Main	Fits vehicles requiring outside air, comes in a box.
2018	GMC	Sierra	Main	Fits vehicles requiring outside air, comes in a box.
2018	GMC	Sierra 1500	Main	Fits vehicles requiring outside air, comes in a box.
2018	GMC	Sierra 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2018	GMC	Sierra 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2018	GMC	Yukon	Main	Fits vehicles requiring outside air, comes in a box.
2018	GMC	Yukon XL	Main	Fits vehicles requiring outside air, comes in a box.
2017	Cadillac	Escalade	Main	Fits vehicles requiring outside air, comes in a box.
2017	Cadillac	Escalade ESV	Main	Fits vehicles requiring outside air, comes in a box.
2017	Chevrolet	Cheyenne	Main	Fits vehicles requiring outside air, comes in a box.
2017	Chevrolet	Silverado 1500	Main	Fits vehicles requiring outside air, comes in a box.
2017	Chevrolet	Silverado 2500	Main	Fits vehicles requiring outside air, comes in a box.
2017	Chevrolet	Silverado 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2017	Chevrolet	Silverado 3500	Main	Fits vehicles requiring outside air, comes in a box.
2017	Chevrolet	Silverado 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2017	Chevrolet	Suburban 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2017	Chevrolet	Tahoe	Main	Fits vehicles requiring outside air, comes in a box.
2017	GMC	Sierra	Main	Fits vehicles requiring outside air, comes in a box.
2017	GMC	Sierra 1500	Main	Fits vehicles requiring outside air, comes in a box.
2017	GMC	Sierra 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2017	GMC	Sierra 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2017	GMC	Yukon	Main	Fits vehicles requiring outside air, comes in a box.
2017	GMC	Yukon XL	Main	Fits vehicles requiring outside air, comes in a box.
2016	Cadillac	Escalade	Main	Fits vehicles requiring outside air, comes in a box.
2016	Cadillac	Escalade ESV	Main	Fits vehicles requiring outside air, comes in a box.
2016	Chevrolet	Cheyenne	Main	Fits vehicles requiring outside air, comes in a box.
2016	Chevrolet	Silverado 1500	Main	Fits vehicles requiring outside air, comes in a box.
2016	Chevrolet	Silverado 2500	Main	Fits vehicles requiring outside air, comes in a box.
2016	Chevrolet	Silverado 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2016	Chevrolet	Silverado 3500	Main	Fits vehicles requiring outside air, comes in a box.
2016	Chevrolet	Silverado 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2016	Chevrolet	Suburban 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2016	Chevrolet	Tahoe	Main	Fits vehicles requiring outside air, comes in a box.
2016	GMC	Sierra	Main	Fits vehicles requiring outside air, comes in a box.
2016	GMC	Sierra 1500	Main	Fits vehicles requiring outside air, comes in a box.
2016	GMC	Sierra 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2016	GMC	Sierra 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2016	GMC	Yukon	Main	Fits vehicles requiring outside air, comes in a box.
2016	GMC	Yukon XL	Main	Fits vehicles requiring outside air, comes in a box.
2015	Cadillac	Escalade	Main	Fits vehicles requiring outside air, comes in a box.
2015	Cadillac	Escalade ESV	Main	Fits vehicles requiring outside air, comes in a box.
2015	Chevrolet	Cheyenne	Main	Fits vehicles requiring outside air, comes in a box.
2015	Chevrolet	Silverado 1500	Main	Fits vehicles requiring outside air, comes in a box.
2015	Chevrolet	Silverado 2500	Main	Fits vehicles requiring outside air, comes in a box.
2015	Chevrolet	Silverado 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2015	Chevrolet	Silverado 3500	Main	Fits vehicles requiring outside air, comes in a box.
2015	Chevrolet	Silverado 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2015	Chevrolet	Tahoe	Main	Fits vehicles requiring outside air, comes in a box.
2015	GMC	Sierra	Main	Fits vehicles requiring outside air, comes in a box.
2015	GMC	Sierra 1500	Main	Fits vehicles requiring outside air, comes in a box.
2015	GMC	Sierra 2500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2015	GMC	Sierra 3500 HD	Main	Fits vehicles requiring outside air, comes in a box.
2015	GMC	Yukon	Main	Fits vehicles requiring outside air, comes in a box.
2015	GMC	Yukon XL	Main	Fits vehicles requiring outside air, comes in a box.
2014	Chevrolet	Cheyenne	Main	Fits vehicles requiring outside air, comes in a box.
2014	Chevrolet	Silverado 1500	Main	Fits vehicles requiring outside air, comes in a box.
2014	GMC	Sierra	Main	Fits vehicles requiring outside air, comes in a box.
2014	GMC	Sierra 1500	Main	Fits vehicles requiring outside air, comes in a box.
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Directly replaces or cross-references 3 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Standard Ignition — ADR427522808882ADS4275