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Four Seasons 36520 Engine Cooling Fan Switch
Engine Cooling Fan Temperature Switch
Four Seasons Temperature Switch 36520 is a radiator-mounted engine cooling fan switch built for temperature-based fan control. It uses a 2-terminal male connector with an M22 x 1.50 thread and opens at 203 degrees while switching off at 194 degrees.
Use this Four Seasons temperature switch when you need a direct replacement for radiator-mounted cooling fan control on select Saab, Porsche, Audi, and Volkswagen applications. Part number 36520 meets or exceeds OEM requirements and is built for the specified temperature range and connector style.
Key Features
- Brand: Four Seasons Temperature Switch
- Part number: 36520
- Radiator mount temperature switch for engine cooling fan control
- 2-terminal male connector with black open connector shape
- M22 x 1.50 fitting thread
- Fan open/closed function with 203°F on and 194°F off
- Meets or exceeds OEM specifications
Product Details
This engine cooling fan switch is designed to monitor coolant temperature at the radiator and trigger fan operation at the specified threshold. The Four Seasons 36520 temperature switch is a practical OE-style replacement for vehicles that rely on a threaded radiator-mounted thermal switch, including Saab 900, Porsche 924, Audi 4000, Volkswagen Rabbit Convertible, and Volkswagen Rabbit Pickup applications listed below. If your original switch has the wrong temperature range, damaged terminals, or inconsistent fan cycling, this part number 36520 restores the correct switching point for the cooling system.
Four Seasons Temperature Switch is the product line designation for temperature-based cooling system switches, and this part follows the original mounting and electrical configuration for the listed applications.
Common Issues This Part Can Address
- Cooling fan not turning on at the correct temperature
- Cooling fan staying on longer than expected after warm-up
- Faulty radiator-mounted temperature switch signal
- Broken, corroded, or loose 2-terminal connector interface
- Incorrect replacement thread size or temperature range
Installation Notes
- Verify radiator mount location and M22 x 1.50 thread before installation.
- Confirm the connector style matches the vehicle harness: 2-terminal male, open connector shape.
- Check the cooling system for proper coolant level and fan circuit operation after replacement.
- Use the vehicle’s service information to confirm the specified on/off temperature range.
Quality Assurance
Four Seasons 36520 meets or exceeds OEM requirements for the listed application details. This part cross-references Anchor 3413 for the same application.
Compatible with select 1980-1984 Audi 4000, 1980-1984 Volkswagen Rabbit Convertible, 1980-1984 Volkswagen Rabbit Pickup, 1986-1994 Saab 900, and 1987 Porsche 924 radiator-mounted cooling fan switch applications.
| Brand | Four Seasons |
|---|---|
| Part Number | 36520 |
| Position | Temperature Switch |
| Connector Color | Black |
| Connector Gender | Male |
| Connector Shape | Open |
| Description | Switch-Temp /Radiator Mount |
| Fan Open/Closed | Open |
| Fitting Gender | Male |
| Fitting Thread | M22x1.500 |
| Fitting Thread Size | M22 x 1.50 |
| Function | temperature switch |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | Radiator Mount |
| Style | Temperature |
| Temperature Off | 194 |
| Temperature On | 203 |
| Terminal Pin Qty. | 2 |
| Terminal Quantity | 2 |
| Type | Temperature |
This part fits 23 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1994 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1993 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1992 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1991 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1990 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1989 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1988 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1987 | Porsche | 924 | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch | ||
| 1987 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1986 | Saab | 900 | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1984 | Volkswagen | Rabbit Convertible | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1983 | Audi | 4000 | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch | ||
| 1983 | Volkswagen | Rabbit Convertible | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1983 | Volkswagen | Rabbit Pickup | 1.7L | L4 | N/A | Radiator Mounted; 2 Term.; Temperature Switch |
| 1982 | Audi | 4000 | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch | ||
| 1982 | Volkswagen | Rabbit Convertible | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1982 | Volkswagen | Rabbit Pickup | 1.7L | L4 | N/A | Radiator Mounted; 2 Term.; Temperature Switch |
| 1981 | Audi | 4000 | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch | ||
| 1981 | Volkswagen | Rabbit Convertible | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1981 | Volkswagen | Rabbit Pickup | 1.7L | L4 | N/A | Radiator Mounted; 2 Term.; Temperature Switch |
| 1980 | Audi | 4000 | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch | ||
| 1980 | Volkswagen | Rabbit Convertible | N/A | Radiator Mounted; 2 Term.; Temperature Switch | ||
| 1980 | Volkswagen | Rabbit Pickup | N/A | Radiator Mounted; 2 Term.; Temperature Switch |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.