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.
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.
This part fits
12 vehicles spanning 2007-2012.
Fits these Makes
Select vehicle
Year
Make
Model
Description
2008-2012
Buick
Enclave
Buick Enclave Main Mode HVAC Blend Door Actuator TRQ HCA73604
2008-2012
Buick
Enclave
Buick Enclave Main Temperature HVAC Blend Door Actuator TRQ HCA73604
2008-2012
Buick
Enclave
Buick Enclave Main Air Inlet HVAC Blend Door Actuator TRQ HCA73604
2009-2012
Chevrolet
Traverse
Chevrolet Traverse Main Mode HVAC Blend Door Actuator TRQ HCA73604
2009-2012
Chevrolet
Traverse
Chevrolet Traverse Main Temperature HVAC Blend Door Actuator TRQ HCA73604
2009-2012
Chevrolet
Traverse
Chevrolet Traverse Main Air Inlet HVAC Blend Door Actuator TRQ HCA73604
2007-2012
GMC
Acadia
GMC Acadia Main Mode HVAC Blend Door Actuator TRQ HCA73604
2007-2012
GMC
Acadia
GMC Acadia Main Temperature HVAC Blend Door Actuator TRQ HCA73604
2007-2012
GMC
Acadia
GMC Acadia Main Air Inlet HVAC Blend Door Actuator TRQ HCA73604
2007-2010
Saturn
Outlook
Saturn Outlook Main Air Inlet HVAC Blend Door Actuator TRQ HCA73604
2007-2010
Saturn
Outlook
Saturn Outlook Main Mode HVAC Blend Door Actuator TRQ HCA73604
2007-2010
Saturn
Outlook
Saturn Outlook Main Temperature HVAC Blend Door Actuator TRQ HCA73604
Part Interchange
Brand Label
Part Number
Dorman - OE Solutions
604-140
This item may be interchangeable with parts from other brands with the above part numbers.
This information is provided only for reference and does not guarantee that the item you are
purchasing is identical to parts with part numbers from the brands listed above.
To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.
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.
HCA73604
In Stock
Product Reviews
There are no reviews for this product yet.
Customer Q&A
Got a question about this part? Post it and get answers from our team.
RichardMay 16, 2026
does this fit the driver side of the 2011 model ?
Thank you for your inquiry! Could you please provide your 17-digit VIN?
Jean · May 18, 2026
KatiAugust 3, 2025
What is the difference between this actuator and the TRQ - HCA40169? Which one is the replacement for a blend door actuator and for a recirculation door actuator?
HCA40169 is the HVAC Blend Door Actuator and HCA73604 is the Main Temperature HVAC Blend Door Actuator
Michael · August 4, 2025
Showing 1–2 of 2 questions
Customer service
877-844-3393
Monday - Friday 8:00am - 9:30pm ET Saturday - Sunday 8:00am - 4:30pm ET
Ask a Question
Check Your Email
We sent a verification email to .
Click the Verify Email button in the email to submit your question.
This extra step helps prevent spam.
Chevrolet is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by Chevrolet or General Motors Company.See all trademarks.
Select Your Vehicle
Specify your vehicle's year, make and model to guarantee fit.