Dorman - OE Solutions HVAC Blend Door Actuator 604-993
Dorman - OE Solutions HVAC Blend Door Actuator 604-993

Blend Door Actuator for 2009-2014 Chevrolet Tahoe & More - Dorman 604-993

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$53.99
MPN: 604-993
Item Package Quantity: 1
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Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-993
Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-993
$53.99

Help keep your cabin at the temperature you set with the DORMAN blend door actuator 604-993, the small motor that positions the HVAC blend door to mix hot and cold air behind the dash. It drops in as a direct-fit replacement across a wide range of GM, Isuzu, and Saab vehicles, including the 2007-2013 Chevrolet Silverado 1500, 2009-2014 Chevrolet Tahoe, and 2002-2009 Chevrolet TrailBlazer. With applications spanning MAIN, AUXILIARY, RIGHT MAIN, and UPPER MAIN positions, check the fitment details and position before ordering; see the Buyer's Guide tab for the full list.

  • Application-specific design: engineered and tested for a seamless repair on the specified GM, Isuzu, or Saab vehicles, so you order the right actuator with confidence.
  • Captive screws save time: frustration-free screws stay in place while you line up the actuator inside the HVAC case, easing that tricky part of the job.
  • Direct replacement: designed to match the fit and function of the original actuator on the listed applications.

If a failed actuator is the cause of your inconsistent airflow temperature or a clicking noise behind the dash, this is the part that replaces it. Because access often means removing the dash, a well-tested unit helps you avoid doing the job twice.

Frequently Asked Questions

What does the DORMAN hvac blend door actuator 604-993 do?

It drives the HVAC blend door that mixes hot and cold air behind the dash, controlling the temperature of the air delivered to the cabin on the listed applications.

Is this the right blend door actuator for a 2007-2013 Chevy Silverado 1500?

Yes, it is listed for the 2007-2013 Chevrolet Silverado 1500. Confirm your year, model, and the actuator position in the Buyer's Guide tab before ordering.

Which position does 604-993 cover?

The catalog lists MAIN, AUXILIARY, RIGHT MAIN, and UPPER MAIN positions across the applications. Check the fitment details and position for your specific vehicle before you order.

What are signs this blend door actuator may need replacing?

Common signs include a clicking or knocking noise behind the dash and air temperature that no longer matches the setting. Diagnose the cause before replacing, as other components can produce similar symptoms.

Does it come with mounting screws?

This actuator features captive screws that stay in place while you line it up inside the HVAC case, making that usually tricky step of the installation easier.

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