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Four Seasons 73750 HVAC Mode Door Actuator
| Brand | Four Seasons 73750 |
|---|---|
| Door Linkage | Arm |
| Mounting Ear Qty. | 3 |
| Style | Hvac air door actuator |
| Terminal Pin Qty. | 5 |
| Fits | Fiat and Mazda · 12 vehicles |
Direct replacement. HVAC air door actuator for straightforward climate control service.
Arm linkage design. 3 mounting ears and a 5-terminal connection for a precise fit.
Proven experience. Backed by over 50 years of mobile A/C engineering and testing.
Cross-references Four Seasons 73750, 68313631AA and NA1P61A70 for the same application. See all 3.
HVAC Mode Door Actuator Overview
Four Seasons 73750 is an HVAC air door actuator built for direct replacement service in climate control systems. It is engineered for dependable operation and fits Mazda MX-5 and Fiat 124 Spider applications listed below.
Key Features
- HVAC air door actuator with arm-style door linkage
- 3 mounting ears for secure installation
- 5-terminal electrical connection
- Direct replacement part number 73750
- Cross-references 68313631AA and NA1P61A70 for the same application
Detailed Description
This Four Seasons HVAC mode door actuator, part number 73750, controls air door movement inside the HVAC system to direct airflow through the selected vents. The arm linkage and 5-pin design support precise electrical control, while the 3-ear mounting layout matches the listed replacement applications. Four Seasons draws on more than 50 years of mobile A/C experience, and this part is engineered and tested for long service life in routine HVAC repair work. It is a practical replacement for Mazda MX-5 and Fiat 124 Spider models that need restored mode door operation.
Common Issues It Can Solve
- Incorrect airflow direction from the dash vents
- Stuck or unresponsive HVAC mode changes
- Noisy actuator operation during temperature or vent selection
- Loss of proper vent selection control in the climate system
Installation Notes and Tips
Verify the connector style, terminal count, and mounting ear layout before installation. Compare the removed actuator to Four Seasons 73750 to confirm the arm linkage and electrical interface match the original unit. For best results, inspect the HVAC door movement and related control components before replacing the actuator.
Quality Assurance
Four Seasons states that its products are engineered and tested for years of trouble-free operation, backed by more than 50 years of mobile A/C experience.
Fitment
- Fits 2016-2023 Mazda MX-5, N/A
- Fits 2017-2020 Fiat 124 Spider, N/A
| Year | Make | Model | Notes |
|---|---|---|---|
| 2023 | Mazda | MX-5 | — |
| 2022 | Mazda | MX-5 | — |
| 2021 | Mazda | MX-5 | — |
| 2020 | Fiat | 124 Spider | — |
| 2020 | Mazda | MX-5 | — |
| 2019 | Fiat | 124 Spider | — |
| 2019 | Mazda | MX-5 | — |
| 2018 | Fiat | 124 Spider | — |
| 2018 | Mazda | MX-5 | — |
| 2017 | Fiat | 124 Spider | — |
| 2017 | Mazda | MX-5 | — |
| 2016 | Mazda | MX-5 | — |
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