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Four Seasons 37381 Engine Cooling Fan Temperature Switch
| Brand | Four Seasons 37381 |
|---|---|
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Description | Switch-Temp /Radiator Mount |
| Function | temperature switch |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | System Mount |
| Style | Temperature |
| Temperature Off | 206 |
| Temperature On | 215 |
| Terminal Quantity | 2 |
| Type | Temperature |
| Product line | Temperature Switch |
| Fits | Nissan · 6 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable cooling control.
Temperature-activated switch. Turns on at 215 and off at 206 for precise fan control.
Rectangular female connector. Two-terminal design for a straightforward electrical connection.
Cross-references Four Seasons 37381, 21595D4000 and 2159502E00 for the same application. See all 5.
Engine Cooling Fan Temperature Switch for Nissan Maxima
Four Seasons 37381 is a radiator-mount engine cooling fan temperature switch built for temperature-based fan control. It uses a rectangular female connector with 2 terminals and meets or exceeds OEM requirements for the listed application.
Key Features
- Temperature switch for radiator mount applications
- Rectangular connector shape with female 2-terminal design
- Temperature on at 215 and off at 206
- System mount style for cooling fan temperature control
- Meets or exceeds OEM specifications
Product Details
This Four Seasons Temperature Switch line part, 37381, is used in the engine cooling system to monitor coolant temperature and trigger fan operation at the specified thresholds. It is a direct-fit style replacement for 1984-1989 Nissan Maxima temperature switch applications and is built to match the original electrical and mounting configuration. Four Seasons 37381 is also referenced by cross numbers such as A03781 and SW528 for the same application.
The Temperature Switch product line from Four Seasons focuses on cooling-system electrical components that help maintain proper fan cycling and temperature control. For Nissan Maxima owners searching for a radiator mount temperature switch, this part number is a relevant OE-style replacement option.
Common Problems It Can Address
- Cooling fan not switching on at the correct temperature
- Fan running too late and allowing engine temperature to rise
- Intermittent temperature signal at the radiator mount
- Faulty temperature switch causing inconsistent fan cycling
- Replacement need for a worn or failed Nissan Maxima cooling fan switch
Installation Notes and Tips
Verify the connector shape, terminal count, and mounting location before installation. Confirm the temperature on and temperature off values match the original specification for your vehicle. This part is listed for 1984-1989 Nissan Maxima temperature switch applications, so compare the existing switch and connector before replacement.
Quality Assurance
Four Seasons 37381 meets or exceeds OEM requirements for the listed application, supporting a direct replacement standard for cooling system service.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 1989 | Nissan | Maxima | — | N/A | Temperature Switch |
| 1988 | Nissan | Maxima | — | N/A | Temperature Switch |
| 1987 | Nissan | Maxima | — | N/A | Temperature Switch |
| 1986 | Nissan | Maxima | Manual | N/A | Temperature Switch |
| 1985 | Nissan | Maxima | Manual | N/A | Temperature Switch |
| 1984 | Nissan | Maxima | Manual | N/A | Temperature Switch |
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