Dorman - OE Solutions HVAC Blend Door Actuator 604-870
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Dorman - OE Solutions HVAC Blend Door Actuator 604-870
Dorman - OE Solutions HVAC Blend Door Actuator 604-870 - view 2
Dorman - OE Solutions HVAC Blend Door Actuator 604-870 - view 3

Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-870

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$53.99
MPN: 604-870
UPC: 885484541207
Item Package Quantity: 1
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Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-870
Dorman - OE Solutions HVAC Blend Door Actuator P/N:604-870
$53.99

Keep cabin temperature under control with the Dorman blend door actuator 604-870, a direct-fit replacement for the 2007-2013 Acura MDX and 2009-2015 Honda Pilot. This is the LEFT MAIN unit — the small electric motor that rotates the HVAC blend door to set the mix of heated and cooled air behind the dash.

  • Direct replacement: engineered to drop in like the original left main air door actuator on the listed applications.
  • Position specific: vehicles often use several different HVAC door actuators for different positions and functions — review this part's application notes to confirm it matches the location 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.
  • Trustworthy quality: backed by US-based engineers and more than a century of experience.

Signs the original actuator may need replacing include inconsistent or stuck cabin temperature and a clicking or knocking noise from behind the dash. If a failed left main blend door actuator is the cause, this Dorman air door actuator replaces it. When you don't know which actuator position you need, consult a qualified service technician.

Interchange: APBDA0315 · ADS4261 · 73271 · 79160STXA41 · DA1307 · ADA307 · ADR4261

This part cross-references / interchanges with the following part numbers:

APBDA0315, ADS4261, 73271, 79160STXA41, DA1307, ADA307, ADR4261

Frequently Asked Questions

Does this Dorman blend door actuator fit my Acura MDX or Honda Pilot?

Yes — it's a direct-fit replacement for the 2007-2013 Acura MDX and 2009-2015 Honda Pilot. It is the LEFT MAIN actuator, so confirm it matches the position you need to replace.

What does a Dorman air door actuator do?

It's a small electric motor that rotates the HVAC blend door to control the mix of heated and cooled air, setting the cabin temperature you select.

What are signs this Dorman heater blend door actuator may need replacing?

Common signs include inconsistent or stuck cabin temperature and a clicking or knocking noise behind the dash. Diagnose the cause before replacing.

Is this the only actuator in my vehicle?

No — these vehicles often use several HVAC door actuators for different positions. This is the LEFT MAIN unit; review the application notes to confirm it's the one you need.

What other part numbers does the Dorman hvac heater blend door actuator 604 replace?

It cross-references APBDA0315, ADS4261, 73271, 79160STXA41, DA1307, ADA307, and ADR4261.

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