Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-100
$44.99
(You save)
Restore proper heat, cool, and defrost delivery with the Dorman - OE Solutions HVAC Blend Door Actuator, part number 604-100. This electric actuator drives the HVAC blend/air door so the system can direct airflow and temperature as commanded. It's cataloged for the MAIN, AUXILIARY, and LEFT MAIN positions, and installs as a direct-fit replacement across a wide range of GM cars, trucks, and vans plus Mack medium- and heavy-duty trucks — including the 1996-2005 Chevrolet Astro, 1995-2005 Chevrolet Blazer, 1994-2004 Chevrolet S10, 1995-2006 Chevrolet Tahoe, 1992-2006 GMC Yukon, 1996-2001 Oldsmobile Bravada, and 2008-2017 Mack CXU. See the Buyer's Guide tab for the full list of 75 applications.
Direct replacement: engineered to drop in like the original air door actuator on the listed years, makes, models, and configurations.
Position specific: many vehicles use several different HVAC door actuators — review the application notes to confirm this one matches the position and function of the actuator you're replacing.
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.
It's a small electric motor that moves the HVAC blend/air door, directing airflow and controlling temperature so the system delivers heat, cool, or defrost as commanded.
Which actuator position does 604-100 cover?
It's cataloged for the MAIN, AUXILIARY, and LEFT MAIN positions. Many vehicles use several actuators, so check the application notes to match the exact position and function you need.
What are signs this actuator may need replacing?
Common signs include a clicking or knocking noise behind the dash, air that won't change temperature or switch between vents/defrost, or inconsistent HVAC output. Diagnose the cause before replacing.
Will this fit my vehicle?
It's a direct-fit replacement for many GM and Mack applications, from the 1996-2005 Chevrolet Astro to the 2008-2017 Mack CXU. See the Buyer's Guide tab and confirm fitment for your vehicle.
Is this a direct replacement?
Yes. It's engineered to drop in like the original air door actuator on the listed years, makes, models, and configurations without modification.
Write a Review
Dorman
Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-100
Restore precise cabin temperature control with the Dorman - OE Solutions HVAC Blend Door Actuator 604-943. This electric actuator positions the LEFT MAIN air door that blends heated and cooled air,...
Keep your climate system moving air where you set it with the Dorman - OE Solutions HVAC Blend Door Actuator 604-924. This small electric motor drives the air door inside the HVAC case, positioning...
Take command of the main HVAC air door and quiet down erratic climate control with the Dorman - OE Solutions HVAC Blend Door Actuator 604-936. This electric actuator drives the MAIN air door inside...
WARNING:
These products can expose you to chemicals including lead and phthalates, 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.
