★★★★★
April 1, 2026
damper control
damper control fixed my HVAC issue
Replaces
Part Details
Specifications
About TRQ:
TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
Returns: Parts with electrical components cannot be returned once installed.
Left Hand Drive:
All of our auto parts are intended for Left Hand Drive USDM vehicles. If your vehicle is Right Hand Drive, please ensure the part is correct for your specific vehicle.
Attention California Customers:
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
FREE Shipping is standard on Orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii, Alaska and US Territories. Shipping is not available to Canada.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses. Final shipping costs are available at checkout.
HCA40143
damper control fixed my HVAC issue
Works as expected in my 2005 Mercury Grand Marquis. Great price and fast shipping.
It fit into the space and fixed my issue of no heat. The real test will be how long the plastic gears last. Hopefully as long as the original (20 yeats).
So far so good all good
Fits and works great. A real bear to install.
Amazing it was the right part no hassle no stress. I always look forward to shopping with 1A Auto
Works great
It fit perfectly and fixed my problem of no cold air. Now my AC blows ice cold air.
The part I received was just what I needed. It was too difficult for me to replace due to having to remove the dash.
Works as it is supposed too. It was an exact fit connections and all. Very satisfied and I would recommend this product to those diy that want a good product for less money.
This is listed to fit the 1993-2011 Mercury Grand Marquis with Automatic Temperature Control
If you can set the air to a certain temperature in degrees, than you have automatic temp control.
