Restore proper HVAC door movement with the Dorman - OE Solutions HVAC Blend Door Actuator 604-946, a direct-fit replacement for the 2002-2006 Acura MDX, 2002-2004 Honda Odyssey, and 2003-2008 Honda Pilot. This small electric actuator drives an HVAC door to position airflow, temperature, or mode, and it's cataloged for the MAIN position — many vehicles use several actuators, so review the application notes to confirm it matches the location and function of the one you're replacing.
- Direct replacement: engineered to install like the original air door actuator on the listed applications.
- Position specific: vehicles often have multiple HVAC door actuators; verify this part matches the position and function you need.
- Durable construction: designed and tested to strict standards to help resist wear and electrical burnout for reliable operation.
- Trustworthy quality: backed by a team of experts and engineers in the United States, with more than a century of experience.
If a failed actuator is the cause of clicking or knocking behind the dash, inconsistent temperature, or air coming from the wrong vents, this replaces it. See the Buyer's Guide tab for the full application and engine details.
Interchange: ADA515 · ADS4327 · 79160S0XA01 · DA1237 · ADR4327
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this blend door actuator do?
It's a small electric motor and gear that moves an HVAC door to position airflow, temperature, or mode inside the climate control system. This unit is cataloged for the MAIN position.
Which vehicles does the 604-946 fit?
It's a direct-fit replacement for the 2002-2006 Acura MDX, 2002-2004 Honda Odyssey, and 2003-2008 Honda Pilot. See the Buyer's Guide tab for full application details.
How do I know I'm ordering the right actuator?
Many vehicles use several actuators for different positions and functions. Review this part's application notes to confirm it matches the location and function of the one you need to replace.
What are signs this actuator may need replacing?
Common signs include clicking or knocking behind the dash, inconsistent cabin temperature, or air coming from the wrong vents. If a failed actuator is the cause, this replaces it.
What interchange numbers does this part replace?
It cross-references ADA515, ADS4327, 79160S0XA01, DA1237, and ADR4327. Match your original number or verify fitment for your vehicle before ordering.
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