HomeFour Seasons 73640 HVAC Blend Door Actuator
Part #: 73640

Four Seasons 73640 HVAC Blend Door Actuator

⚙️ 7 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Sequoia
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Reliable HVAC Blend Door Actuator for Toyota Sequoia

The Four Seasons 73640 HVAC blend door actuator is designed to restore proper airflow control in your Toyota Sequoia's heating and cooling system. Engineered with precise door linkage and mounting features, this actuator ensures accurate temperature regulation inside your vehicle.

  • Door linkage type: Arm for smooth operation
  • Mounting ear quantity: 3 for secure installation
  • Style: HVAC air door actuator tailored for blend door control
  • Terminal pin quantity: 5 for reliable electrical connection

Product Details and Specifications

This HVAC blend door actuator from Four Seasons, part number 73640, is specifically designed for Toyota Sequoia models. It features an arm-style door linkage that moves the blend door to regulate air temperature effectively. The actuator includes three mounting ears, providing a stable and secure fit within the HVAC system. With five terminal pins, it ensures consistent electrical connectivity for precise control signals. This component is essential for maintaining the comfort and climate control functionality of your vehicle.

Common Applications and Problem Resolution

  • Restores proper blend door movement to fix inconsistent cabin temperatures
  • Eliminates clicking or knocking noises from the HVAC system
  • Resolves issues with air not switching between heat and cold settings
  • Corrects malfunctioning temperature control in Toyota Sequoia HVAC systems

Installation Notes and Tips

When installing the Four Seasons 73640 blend door actuator, ensure the three mounting ears align correctly with the HVAC housing. Verify the five terminal pins are securely connected to avoid electrical faults. It is recommended to test actuator operation before reassembling the dashboard components to confirm proper function.

Quality Assurance and Warranty

Four Seasons manufactures this HVAC blend door actuator to meet or exceed OEM standards for fit and function. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.

BrandFour Seasons
Part Number73640
Door LinkageArm
Mounting Ear Qty.3
StyleHvac air door actuator
Terminal Pin Qty.5

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2007ToyotaSequoiaN/A
2006ToyotaSequoiaN/A
2005ToyotaSequoiaN/A
2004ToyotaSequoiaN/A
2003ToyotaSequoiaN/A
2002ToyotaSequoiaN/A
2001ToyotaSequoiaN/A

* 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:

73640871060C040ACT1964IMBDAA1377DA1578

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