Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-921
$80.99
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Help restore proper HVAC operation with the Dorman hvac heater blend door actuator 604-921, a vacuum-style defroster air door actuator that moves the HVAC air door to direct airflow inside the vehicle. It installs as a direct-fit replacement for the MAIN position on many Chevrolet, GMC and Isuzu vans and trucks, including the 1996-2023 Chevrolet Express 2500 and the 1996-2023 Chevrolet Express 3500 — see the Buyer's Guide tab for the full list.
Direct replacement: engineered to install and operate like the original air door actuator on the listed applications.
Position specific: vehicles often use several different HVAC door actuators, so review the application notes to confirm this one matches the location and function you need to replace.
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 US-based experts and engineers and more than a century of experience.
It is made of plastic and uses rotary switch activation. If a failed MAIN-position actuator is the cause of poor airflow, this Dorman air door actuator replaces it. Ships as one air door actuator. Country of origin: China.
Interchange: 1996840 · 89018674 · DA1339 · ADA631
This part cross-references / interchanges with the following part numbers:
1996840, 89018674, DA1339, ADA631
Frequently Asked Questions
What does the Dorman 604-921 blend door actuator do?
It's an air door actuator with rotary switch activation that moves the HVAC air door to direct airflow inside the cabin. If a failed MAIN-position actuator is causing poor airflow, this replaces it.
Is this the correct blend door actuator for my vehicle?
It fits the MAIN position on the listed vans and trucks. Because a vehicle can use several different HVAC door actuators, review the application notes to confirm this one matches the position and function you need to replace.
Which vehicles does the 604-921 fit?
It fits many Chevrolet, GMC and Isuzu vans and trucks, such as the 1996-2023 Chevrolet Express 2500 and 1996-2023 Chevrolet Express 3500. See the Buyer's Guide tab for the full list.
What is the actuator made of?
It uses a durable plastic construction with rotary switch activation, designed and tested to strict standards to help resist wear and electrical burnout. The package contains one air door actuator.
What other part numbers does the Dorman 604 blend door actuator replace?
It cross-references the following interchange numbers: 1996840, 89018674, DA1339 and ADA631.
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Dorman - OE Solutions
Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-921
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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.
