HomeFour Seasons 73671 HVAC Blend Door Actuator - Left or Right
Part #: 73671

Four Seasons 73671 HVAC Blend Door Actuator - Left or Right

Right and Left
⚙️ 19 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: INFINITI and Nissan, Altima, QX50, QX55, and Sentra
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Reliable HVAC Blend Door Actuator for Infiniti and Nissan Vehicles

The Four Seasons 73671 HVAC Blend Door Actuator is designed to restore proper airflow control in your Infiniti or Nissan vehicle's climate system. Engineered with precision, this actuator ensures smooth operation of the HVAC air door for models like the Altima, QX50, QX55, and Sentra.

  • Door linkage type: Arm for accurate movement
  • Mounting ear quantity: 4 for secure installation
  • Style: HVAC air door actuator tailored for blend door control
  • Terminal pin quantity: 3 for reliable electrical connection

Product Details and Specifications

This HVAC blend door actuator from Four Seasons features an arm-style door linkage that provides precise control over the air mix door position. The actuator includes four mounting ears, ensuring a stable and secure fit within the HVAC housing. With three terminal pins, it offers a dependable electrical interface for consistent performance. The part number 73671 is specifically designed to be compatible with Infiniti and Nissan models such as the Altima, QX50, QX55, and Sentra, making it a suitable replacement for factory blend door actuators in these vehicles.

Common Applications and Problem Resolution

  • Restores proper airflow direction and temperature control in HVAC systems
  • Eliminates issues with inconsistent cabin temperature
  • Resolves blend door actuator clicking or failure noises
  • Fixes problems with air not switching between vents correctly
  • Addresses HVAC system malfunctions related to blend door movement

Installation Notes and Tips

When installing the Four Seasons 73671 blend door actuator, ensure the four mounting ears align correctly with the HVAC housing. Verify the three 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. Refer to vehicle-specific service manuals for detailed removal and installation procedures.

Quality Assurance and Warranty Information

Four Seasons manufactures this HVAC blend door actuator to meet or exceed OEM specifications for durability and performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. For exact warranty terms, consult the product packaging or Four Seasons customer support.

BrandFour Seasons
Part Number73671
Door LinkageArm
Mounting Ear Qty.4
StyleHvac air door actuator
Terminal Pin Qty.3

This part fits 19 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2024INFINITIQX50Left
2024INFINITIQX55Left
2024NissanAltimaRight
2024NissanSentraSN/A
2023INFINITIQX50Left
2023INFINITIQX55Left
2023NissanAltimaRight
2023NissanSentraSN/A
2022INFINITIQX50Left
2022INFINITIQX55Left
2022NissanAltimaRight
2022NissanSentraSN/A
2021NissanAltimaRight
2021NissanSentraSN/A
2020INFINITIQX50Left
2020NissanAltimaRight
2020NissanSentraSN/A
2019INFINITIQX50Left
2019NissanAltimaRight

* 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:

277325NA1A277325NA1B73671ACT1990IMBDAA1398DA1607

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