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, 2002-2009 Chevrolet TrailBlazer, 2002-2009 GMC Envoy, 2009-2014 GMC Yukon, 2003-2008 Isuzu Ascender, and 2005-2009 Saab 9-7X. With 22 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: built to restore 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.
