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Dorman 604-188 HVAC Blend Door Actuator Compatible with Select Hummer / Pontiac / Saturn Models

Free shipping on orders over $29.99

$22.21

$ 10 .99 $10.99

In Stock
  • Direct replacement - made to match the fit and function of the original air door actuator on certain vehicle years, makes, models and configurations
  • Position specific - vehicles often have multiple different HVAC door actuators; review this part's application notes to verify it matches the location and function of the actuator you need to replace
  • Durable construction - designed and tested to strict standards to help resist wear and electrical burnout for reliable operation and long service life
  • Trustworthy quality - backed by a team of experts and engineers in the United States, and more than a century of experience
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool


This air door actuator directly replaces the original actuator on specific vehicle years, makes, models, configurations and positions to restore proper HVAC operation. Please note that many vehicles have several different air door actuators, which are designed for specific positions and functions in the vehicle. To ensure you have what you need, carefully review the application notes for this part to verify it matches the position and function of the actuator you need to replace. In some online ordering systems, you may need to enter your vehicle information first to see the application notes for your vehicle. If you don't know which actuator position you need to replace, consult a qualified service technician. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Hummer H3: 2006, 2007, 2008, 2009, 2010] - [Hummer H3T: 2009, 2010] - [Pontiac Solstice: 2006, 2007, 2008, 2009] - [Saturn Sky: 2007, 2008, 2009, 2010]


user
Reviewed in the United States on February 4, 2025
Good part at a good price. It is dimensionally identical to the OEM parts and fit well. However, the indent on the side where the wire clips is not molded deep enough and the latch will not secure the wires as is. I used an exacto knife to remove a square of plastic from this area and that allowed the clip to latch and function properly. So far it's is functioning as it should and heat now works again. Make sure you examine all the actuators in your car, I had to replace two of these for heat to work properly.
Mike
Reviewed in the United Arab Emirates on January 28, 2024
works as expected
Killowatt
Reviewed in the United States on January 10, 2024
No problems
S. Bryant
Reviewed in the United States on July 16, 2023
Solved my problem and functions exactly as it should.
Agent37620
Reviewed in the United States on June 4, 2023
This part saved me $3,000 after the car I bought, I was told by previous owner it was the compressor but once I realized I didn’t have heat either I knew this was most likely the issue. Now I get to drive the beautiful streets of Maui with nice cold A/C
Massih
Reviewed in the United States on November 10, 2023
Don't not buy this item or any Doman product. They simply don't not work. It is the second Dorman item that didn't work. I purchased this to fix my Saturn sky heating issue but it didn't work. I had to buy GM Original Equipment for this issue to get resolved. I am out of Amazon return windows and I can't return this. So don't by this item. Get one GM oe item.
Dan R Barnes
Reviewed in the United States on October 26, 2023
It worked and fit up in dash panel alright.
Ki~~~li
Reviewed in Canada on August 15, 2022
Air mixture cannot blow hot air. After the actuator replacement all works great right away.
Heriberto Contreras Carranza
Reviewed in Mexico on June 25, 2022
Funciona bien y facil de instalar
glider guider
Reviewed in the United States on March 13, 2021
This was a fairly easy fix and got my heater working perfectly again in my H3 Hummer. There are two of these units under the dash. By having someone else cycle through the different settings of my heater/AC while I had my head under the dash, I could see that one of them was not moving. So I used the three screws to replace it. It was quite a tight fit of my head and body under the dash but it could be done. I would guess if you took the vehicle in they would remove the dash which is always a problem because something invariable starts rattling after they put it back. Also it would be vastly more expensive than a D.I.Y. job like this. I was worried about lining up the device with the receptacle but as it turns out this is a non-issue so do not worry about it. Just fit it together and then turn the device until the screw holes line up.
Matthew Vanbrocklin
Reviewed in the United States on October 13, 2021
I ordered 2, but only needed to replace one of several under the drivers side dash near the center. Located the defective one (clicking) and replaced it in about 5 minutes (3 screws - only fits one way). Hardest part was just getting to it even with the seat all the way back. Remember to calibrate immediately after installation. The problem we had was when you turned the temp to cold we would hear a clicking sound, but heat still came out - fixed now.
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