/live/media/FS/FS_36504_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
Four Seasons 36504 Engine Cooling Fan Switch
| Brand | Four Seasons 36504 |
|---|---|
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Description | Switch-Temp /Radiator Mount |
| Fan Open/Closed | Open |
| Fitting Gender | Male |
| Fitting Thread | M16 x 1.50 |
| Fitting Thread Size | M16-1.50 |
| Function | temperature switch |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | Radiator Mount |
| Style | Temperature |
| Temperature Off | 185 |
| Temperature On | 203 |
| Terminal Pin Qty. | 2 |
| Terminal Quantity | 2 |
| Type | Temperature |
| Product line | Temperature Switch |
| Fits | Nissan · 8 vehicles |
OE direct replacement. Meets OEM requirements for a straightforward swap.
Temperature switch. Opens at 203° and closes at 185° for precise fan control.
Rectangular connector. Female 2-terminal design with M16 x 1.50 threads.
Cross-references Eastern Catalytic 50289, Four Seasons 36504 and 155973 for the same application. See all 16.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Engine Cooling Fan Switch for Nissan Applications
Four Seasons 36504 is a radiator-mounted temperature switch for engine cooling fan control. It uses a rectangular female connector with 2 terminals and an M16 x 1.50 male thread for direct radiator mounting on listed Nissan applications.
Built as a temperature switch that meets or exceeds OEM requirements, this Four Seasons Temperature Switch line part is specified with fan open/closed operation and a 185°F off / 203°F on temperature range. It is a direct-fit option for Nissan NX, Pulsar NX, and Sentra cooling system service.
Key Features
- Four Seasons Temperature Switch, part number 36504
- Radiator mount design for engine cooling fan control
- Rectangular female connector with 2 terminals
- M16 x 1.50 male thread for the fitting
- Fan open/closed operation
- 185°F off and 203°F on temperature range
- Meets or exceeds OEM specifications
Detailed Product Overview
This engine cooling fan switch monitors radiator temperature and signals the fan circuit at the specified operating point. Four Seasons 36504 is listed for 1986-1992 Nissan Sentra, 1988-1990 Nissan Pulsar NX, and 1991-1992 Nissan NX radiator-mounted applications. The part number 36504 is also referenced across multiple aftermarket and OE cross-reference listings for the same application.
As part of the Four Seasons Temperature Switch product line, this component is focused on accurate temperature-based fan operation for vehicles that use a radiator-mounted switch. For Nissan NX, Nissan Pulsar NX, and Nissan Sentra service, it provides the connector, thread size, and temperature range needed for the listed fitments.
Common Problems This Part Can Address
- Cooling fan not switching on at the correct radiator temperature
- Cooling fan staying on longer than expected after warm-up
- Faulty radiator-mounted temperature switch signal
- Intermittent fan operation caused by switch wear or electrical failure
- Cooling system control issues on listed Nissan NX, Pulsar NX, and Sentra models
Installation Notes and Tips
Verify the radiator-mounted switch location, connector shape, terminal count, and M16 x 1.50 thread before installation. Confirm the vehicle uses the listed temperature range and fan control style, especially on 1986-1987 Nissan Sentra Canada emissions applications and the specified Nissan NX and Pulsar NX models. Compare the original switch to Four Seasons 36504 to ensure the electrical connector and thread match.
Quality Assurance
Four Seasons lists this temperature switch as meeting or exceeding OEM requirements for the specified application. Cross-reference part numbers for the same application include Eastern Catalytic 50289 and A6644.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1992 | Nissan | NX | — | — | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1991 | Nissan | NX | — | — | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1990 | Nissan | Pulsar NX | — | — | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1989 | Nissan | Pulsar NX | 1.8L | L4 | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1988 | Nissan | Pulsar NX | 1.8L | L4 | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1988 | Nissan | Sentra | — | — | N/A | Radiator Mounted; Canada Emissions; Temperature Switch |
| 1987 | Nissan | Sentra | 1.6L | L4 | N/A | Radiator Mounted; Canada Emissions; Temperature Switch |
| 1986 | Nissan | Sentra | 1.6L | L4 | N/A | Radiator Mounted; Canada Emissions; From 1/86; Temperature Switch |
| No rows match your filter. | ||||||