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Four Seasons 37856 Engine Cooling Fan Temperature Switch
| Brand | Four Seasons 37856 |
|---|---|
| Connector Shape | Round |
| Terminal Quantity | 2 |
| Connector Gender | Male |
| Description | Switch-temp /radiator mount |
| Function | Temperature switch |
| Meets / Exceeds OEM? | Yes |
| Mnt Sys Loc | System mount |
| Style | Temperature |
| Type | Temperature |
| Product line | Temperature Switch |
| Fits | Nissan · 5 vehicles |
OE direct replacement. Meets OEM requirements for dependable cooling system control.
Temperature switch. Monitors heat and helps trigger fan operation when needed.
Round connector. Male 2-terminal design for a straightforward electrical connection.
Cross-references Four Seasons 37856, A14206 and SW506 for the same application. See all 4.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Four Seasons 37856 Temperature Switch
Four Seasons 37856 is an engine cooling fan temperature switch for radiator mount applications. It uses a round male connector with 2 terminals and meets or exceeds OEM requirements for direct replacement service.
Key Features
- Engine cooling fan temperature switch for radiator mount use
- Round connector shape with male terminals
- 2-terminal electrical connection
- System mount design for temperature-based fan control
- Meets or exceeds OEM specifications
- Four Seasons Temperature Switch line for cooling system service
Product Details
The Four Seasons Temperature Switch line is built for cooling system control where radiator-mounted temperature sensing is required. Part number 37856 is used to trigger fan operation based on coolant temperature, helping maintain proper engine cooling performance in Nissan 210 and Nissan 280ZX applications. This part cross-references A14206 and SW506 for the same application. Four Seasons 37856 is also listed under interchange TU196.
Compatible With 1980-1982 Nissan 210 and 1979-1980 Nissan 280ZX, this temperature switch supports direct-fit replacement service for vehicles using a radiator-mounted temperature switch with a round, 2-terminal male connector.
Common Issues This Part May Address
- Cooling fan not switching on at the correct temperature
- Fan cycling inconsistently due to a worn temperature switch
- Overheating caused by delayed radiator fan activation
- Faulty temperature signal at the radiator mount
- Electrical connection problems at the switch terminal interface
Installation Notes and Tips
Verify connector shape, terminal count, and mounting location before installation. This part is specified as a radiator mount, system mount temperature switch with a round male connector and 2 terminals. Confirm the vehicle uses the same temperature switch style and compare the original part number 37856 against the existing component before replacement.
Quality Assurance
Four Seasons states that this part meets or exceeds OEM requirements, supporting OE-style replacement for cooling system repair and maintenance.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 1982 | Nissan | 210 | Manual | N/A | Temperature Switch |
| 1981 | Nissan | 210 | Manual | N/A | Temperature Switch |
| 1980 | Nissan | 210 | Manual | N/A | Temperature Switch |
| 1980 | Nissan | 280ZX | — | N/A | Temperature Switch |
| 1979 | Nissan | 280ZX | — | N/A | Temperature Switch |
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