Restore proper temperature control from your dashboard with the Dorman - OE Solutions HVAC Blend Door Actuator 604-870. This small electric motor drives the blend door that mixes heated and cooled air to set cabin temperature, and it drops in as a direct replacement for the left main position on the 2007-2013 Acura MDX and 2009-2015 Honda Pilot. Many vehicles use several different HVAC door actuators for specific positions and functions, so review this part's application notes to confirm it matches the left main actuator you need to replace.
- Direct replacement: engineered to drop in like the factory air door actuator on the listed Acura and Honda applications and configurations.
- Position specific: serves the left main location — verify the position and function against the actuator you're replacing before installing.
- 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.
If a failed blend door actuator is the cause of inconsistent or stuck cabin temperatures, this unit replaces it.
Interchange: APBDA0315 · ADS4261 · 73271 · 79160STXA41 · DA1307 · ADA307 · ADR4261
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this blend door actuator do?
It is a small electric motor that drives the HVAC blend door, which mixes heated and cooled air to control the temperature of the air coming from your vents.
Which vehicles does the 604-870 fit?
It is a direct replacement for the 2007-2013 Acura MDX and 2009-2015 Honda Pilot. See the Buyer's Guide tab to confirm your specific configuration.
Which actuator position is this?
This is the left main actuator. Since these vehicles use several HVAC door actuators, review the application notes to verify it matches the position and function you need to replace.
What are signs this actuator may need replacing?
Common signs include a clicking or knocking noise behind the dash, or temperature that stays stuck or won't change on one side. Diagnose the cause before replacing.
How do I know which actuator I need?
Confirm the position and function against the actuator you're removing. If you're unsure which actuator position to replace, consult a qualified service technician.
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