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Four Seasons 73687 HVAC Blend Door Actuator - Left
| Brand | Four Seasons 73687 |
|---|---|
| Position | Left |
| Door Linkage | Gear |
| Mounting Ear Qty. | 4 |
| Style | Hvac air door actuator |
| Terminal Pin Qty. | 5 |
| Fits | Subaru · 24 vehicles |
Gear linkage. Smooth, precise HVAC air door actuation.
Five-pin design. Provides reliable electrical connection for control.
Four Seasons experience. Backed by decades of mobile A/C expertise.
Cross-references Four Seasons 73687, 72131FL02A and 72131FL520 for the same application. See all 6.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Four Seasons 73687 HVAC Blend Door Actuator
The Four Seasons 73687 HVAC blend door actuator is a direct-fit replacement for select Subaru climate control systems. It uses a gear-style door linkage, a 5-pin terminal layout, and a 4-ear mounting design to help restore proper air door movement in the HVAC box.
Compatible with Subaru Legacy, Outback, Crosstrek, Ascent, and Impreza applications, this Four Seasons 73687 actuator is built for drivers addressing temperature blend or airflow control concerns on the left side of the HVAC system.
Key Features
- HVAC air door actuator for blend door control
- Gear-style door linkage for precise door movement
- 4 mounting ears for secure installation alignment
- 5-terminal pin configuration
- Four Seasons part number 73687
- Cross-reference part numbers include 72131FL02A and ACT2006IM
Application Details
This HVAC blend door actuator is used in Subaru climate control systems where the blend door must move accurately to regulate cabin temperature and airflow. It fits 2020-2024 Subaru Legacy, left; 2020-2024 Subaru Outback, left; 2018-2023 Subaru Crosstrek, left; 2019-2022 Subaru Ascent, left; 2020-2021 Subaru Impreza, left; and 2022-2023 Subaru Impreza, N/A. If you are searching for a Subaru Legacy blend door actuator, Subaru Outback HVAC actuator, or Subaru Crosstrek air door actuator, Four Seasons 73687 is the matching replacement for these listed applications.
What It Helps Fix
- Inconsistent cabin temperature from a stuck blend door
- Airflow that does not change correctly between vents and temperature settings
- Clicking or binding noises from the HVAC actuator area
- Loss of left-side temperature blend control
- HVAC doors that do not respond properly to control inputs
Installation Notes
Verify the original actuator’s connector style, mounting ear layout, and door linkage before installation. Match the vehicle year, model, and position exactly to the fitment list, especially for Subaru Impreza applications where the listed positions differ by year. After installation, cycle the HVAC controls to confirm smooth door movement and proper temperature response.
Quality Assurance
Four Seasons states that its HVAC components are engineered and tested for long service life, drawing on more than 50 years of mobile A/C experience. The 73687 is built as an OE-style replacement for the listed Subaru applications and is backed by that product development experience.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2024 | Subaru | Legacy | — | — | — | Left | — |
| 2024 | Subaru | Outback | — | — | — | Left | — |
| 2023 | Subaru | Crosstrek | 2.5L | H4 | GAS | Left | — |
| 2023 | Subaru | Impreza | — | — | — | N/A | — |
| 2023 | Subaru | Legacy | — | — | — | Left | — |
| 2023 | Subaru | Outback | — | — | — | Left | — |
| 2022 | Subaru | Ascent | — | — | — | Left | — |
| 2022 | Subaru | Crosstrek | 2.5L | H4 | GAS | Left | — |
| 2022 | Subaru | Impreza | — | — | — | N/A | — |
| 2022 | Subaru | Legacy | — | — | — | Left | — |
| 2022 | Subaru | Outback | — | — | — | Left | — |
| 2021 | Subaru | Ascent | — | — | — | Left | — |
| 2021 | Subaru | Crosstrek | 2.5L | H4 | GAS | Left | — |
| 2021 | Subaru | Impreza | — | — | — | Left | — |
| 2021 | Subaru | Legacy | — | — | — | Left | — |
| 2021 | Subaru | Outback | — | — | — | Left | — |
| 2020 | Subaru | Ascent | — | — | — | Left | — |
| 2020 | Subaru | Crosstrek | 2.0L | H4 | GAS | Left | — |
| 2020 | Subaru | Impreza | — | — | — | Left | — |
| 2020 | Subaru | Legacy | — | — | — | Left | — |
| 2020 | Subaru | Outback | — | — | — | Left | — |
| 2019 | Subaru | Ascent | — | — | — | Left | — |
| 2019 | Subaru | Crosstrek | 2.0L | H4 | GAS | Left | — |
| 2018 | Subaru | Crosstrek | — | — | — | Left | — |
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