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Dorman 604-901 HVAC Blend Door Actuator - Left Upper Main or MainOE Quality 60-Day Returns
Part #: 604-901

Dorman 604-901 HVAC Blend Door Actuator - Left Upper Main or Main

Main
19 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, RX350, RX400h, Highlander, RX330, and Avalon
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HVAC Blend Door Actuator for Toyota and Lexus

This Dorman HVAC blend door actuator is built for specific Toyota and Lexus applications where precise air-door movement is needed for proper cabin airflow control. It uses a rotary switch activation design and a plastic housing to match the original actuator style on listed vehicles, including Toyota Highlander, Lexus RX330, Lexus RX350, Lexus RX400h, and Toyota Avalon applications.

Key Features

  • Direct replacement HVAC blend door actuator for selected Toyota and Lexus models
  • Rotary switch activation type for blend or mode door control
  • Plastic construction for OE-style fit and function
  • Matches original actuator performance on listed applications
  • Cross-reference part numbers: 8710607060, APBDA0324

Detailed Description

Dorman Part Number 604-901 is a heater blend door actuator engineered to match the quality and performance of the original unit on specific vehicles. It is used in HVAC systems to move the blend or mode door, helping regulate where heated or cooled air is directed inside the cabin. This part number 604-901 is listed for 2007-2009 Lexus RX350, 2006-2008 Lexus RX400h, 2004-2007 Toyota Highlander, 2004-2006 Lexus RX330, and 1999-2004 Toyota Avalon applications. For buyers searching for a Toyota Highlander HVAC blend door actuator or a Lexus RX350 mode door actuator, this replacement is built around the original fitment and function.

What It Helps Fix

  • Airflow stuck on one vent setting
  • Inconsistent temperature blend between hot and cold air
  • HVAC mode door movement problems
  • Clicking or binding from a failed actuator
  • Loss of proper cabin air distribution in Toyota and Lexus HVAC systems

Installation Notes and Tips

Verify the vehicle year, make, model, and actuator position before installation. This part is listed for Main and Left Upper Main positions depending on application, so match the original unit location carefully. Inspect the HVAC housing and door linkage for damage or obstruction before installing the replacement actuator. Confirm connector style and mounting points against the removed part to ensure proper alignment.

Quality Assurance

Dorman designs this actuator as an OE-style replacement for the listed applications, with fit and performance intended to align with the original part on supported Toyota and Lexus vehicles. Part number 604-901 is built to meet the needs of HVAC repair work where accurate blend door control is required.

BrandDorman
Part Number604-901
MaterialPlastic
Package Contents1 Air Door Actuator
Switch Activation TypeRotary

This part fits 19 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2009LexusRX350MainMode; Evaporator Housing; Packaging Type: Box
2008LexusRX350MainMode; Evaporator Housing; Packaging Type: Box
2008LexusRX400hLeft Upper MainHVAC Blend Door Actuator for mode selection in box packaging.
2007LexusRX350MainMode; Evaporator Housing; Packaging Type: Box
2007LexusRX400hLeft Upper MainHVAC Blend Door Actuator for mode selection in box packaging.
2007ToyotaHighlanderMainHVAC Blend Door Actuator for mode selection in box packaging.
2006LexusRX330MainHVAC Blend Door Actuator for mode selection in box packaging.
2006LexusRX400hLeft Upper MainHVAC Blend Door Actuator for mode selection in box packaging.
2006ToyotaHighlanderMainHVAC Blend Door Actuator for mode selection in box packaging.
2005LexusRX330MainHVAC Blend Door Actuator for mode selection in box packaging.
2005ToyotaHighlanderMainHVAC Blend Door Actuator for mode selection in box packaging.
2004LexusRX330MainHVAC Blend Door Actuator for mode selection in box packaging.
2004ToyotaAvalonXLSMainHVAC Blend Door Actuator for mode selection in box packaging.
2004ToyotaHighlanderMainHVAC Blend Door Actuator for mode selection in box packaging.
2003ToyotaAvalonXLSMainHVAC Blend Door Actuator for mode selection in box packaging.
2002ToyotaAvalonXLSMainHVAC Blend Door Actuator for mode selection in box packaging.
2001ToyotaAvalonXLSMainHVAC Blend Door Actuator for mode selection in box packaging.
2000ToyotaAvalonXLSMainHVAC Blend Door Actuator for mode selection in box packaging.
1999ToyotaAvalonXLSMainHVAC 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:

8710607060APBDA0324

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

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