HomeHVAC > Temperature Controls and Related ComponentsDorman 604-871 HVAC Blend Door Actuator - Auxiliary
Part #: 604-871

Dorman 604-871 HVAC Blend Door Actuator - Auxiliary

Auxiliary
⚙️ 14 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$62.18Free Shipping
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Honda and Acura, Pilot and MDX
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman HVAC Blend Door Actuator 604-871

The Dorman HVAC Blend Door Actuator 604-871 is designed for precise control of airflow temperature in Acura MDX and Honda Pilot vehicles. This rotary switch actuator features a durable plastic construction and a 7-pin male terminal connection for reliable HVAC system performance.

  • Rotary switch activation type for smooth operation
  • 7-pin male terminal configuration ensures secure electrical connection
  • Durable plastic material for long-lasting use
  • Compatible with Acura MDX and Honda Pilot models
  • Includes one air door actuator per package

Detailed Product Description

The Dorman 604-871 HVAC Blend Door Actuator is engineered to regulate the blend door within the heating, ventilation, and air conditioning system of select Acura MDX and Honda Pilot vehicles. Its rotary switch activation type allows for precise modulation of the blend door position, controlling the mix of hot and cold air to maintain the desired cabin temperature. The actuator features a 7-pin male terminal interface, providing a secure and stable electrical connection to the vehicle’s HVAC control system. Constructed from durable plastic, this actuator is built to withstand the thermal and mechanical stresses typical in automotive HVAC environments.

Common Applications and Problem Resolution

  • Restores proper airflow temperature control in Acura MDX and Honda Pilot HVAC systems
  • Eliminates issues with inconsistent cabin temperature regulation
  • Resolves blend door actuator failure symptoms such as unusual noises or unresponsive HVAC controls
  • Addresses HVAC blend door stuck or misaligned conditions
  • Improves overall climate control system reliability

Installation Notes and Tips

  • Ensure vehicle compatibility with Acura MDX or Honda Pilot models before installation
  • Disconnect the vehicle battery prior to actuator replacement to prevent electrical shorts
  • Carefully remove the old blend door actuator to avoid damage to surrounding HVAC components
  • Verify the 7-pin male terminal connection is secure and properly aligned during installation
  • Test HVAC system operation after installation to confirm proper actuator function

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. The 604-871 HVAC Blend Door Actuator undergoes rigorous quality control testing to maintain consistent operation within Acura MDX and Honda Pilot HVAC systems. Warranty coverage details are provided by Dorman and should be reviewed at the time of purchase for specific terms and conditions.

BrandDorman
Part Number604-871
MaterialPlastic
Package Contents1 Air Door Actuator
Switch Activation TypeRotary
Terminal GenderMale
Terminal Quantity7
Terminal TypePin

This part fits 14 vehicles. Search below:

YearMakeModelPositionNotes
2015HondaPilotAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2014HondaPilotAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2013AcuraMDXAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2013HondaPilotAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2012AcuraMDXAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2012HondaPilotAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2011AcuraMDXAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2011HondaPilotAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2010AcuraMDXAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2010HondaPilotAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2009AcuraMDXAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2009HondaPilotAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2008AcuraMDXAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2007AcuraMDXAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

79260STXA01ADR4297ADS4297APBDA0316

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.