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Four Seasons 37383 Engine Cooling Fan Temperature Switch
| Brand | Four Seasons 37383 |
|---|---|
| Connector Shape | Round |
| Terminal Quantity | 2 |
| Connector Gender | Male |
| Description | Switch-temp /radiator mount |
| Meets / Exceeds OEM? | Yes |
| Mnt Sys Loc | System mount |
| Style | Temperature |
| Type | Temperature |
| Product line | Temperature Switch |
| Fits | Audi, Chrysler, Ford, Land Rover, Porsche, and Volkswagen · 34 vehicles |
OE direct replacement. Meets OEM requirements for dependable temperature control.
Temperature switch. Round connector with two male terminals for a clean connection.
System mount. Built for cooling system temperature sensing and control.
Cross-references Four Seasons 37383, 251959481 and A03783 for the same application. See all 4.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Temperature Switch for Radiator-Mounted Cooling Control
Four Seasons Temperature Switch 37383 is an engine cooling fan temperature switch built for radiator-mounted applications. It uses a round connector with 2 male terminals and meets or exceeds OEM requirements for direct replacement service. This part is listed for select Land Rover, Audi, Porsche, Volkswagen, Chrysler, and Ford applications, including Defender 90, Discovery, Range Rover, and other radiator-mounted temperature switch setups.
Key Features
- Four Seasons Temperature Switch, part number 37383
- Round connector shape with 2 male terminals
- Radiator mount / system mount design
- Temperature-style switch for engine cooling fan control
- Meets or exceeds OEM specifications
- Fits select Land Rover Defender 90, Discovery, and Range Rover applications
Product Details
The Four Seasons Temperature Switch line focuses on replacement thermal control components for cooling systems. Part number 37383 is a radiator-mounted engine cooling fan temperature switch that helps manage fan operation based on coolant temperature. It is listed for 1994-1995 Land Rover Defender 90, 1994-1996 Land Rover Discovery, 1987-1995 Land Rover Range Rover, 1993 Land Rover Defender 110, plus select Audi, Porsche, Volkswagen, Chrysler, and Ford models. This part cross-references A03783 for the same application.
Common Issues This Part May Address
- Cooling fan not switching on at the correct temperature
- Cooling fan running continuously after engine warm-up
- Intermittent radiator fan operation
- Temperature-related overheating concerns tied to fan control
- Faulty radiator-mounted thermal switch signal
Installation Notes and Tips
Install the switch in the radiator-mounted location specified by the vehicle application. Verify connector shape, terminal count, and mounting style before installation to confirm match with the original part. Because fitment varies by make, model, and year, confirm the vehicle listing for your Land Rover Defender 90, Discovery, Range Rover, or other supported application before replacement.
Quality Assurance
Four Seasons lists this temperature switch as meeting or exceeding OEM requirements for replacement use. The part is built for direct-fit cooling system service in the applications shown.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1997 | Land Rover | Defender 90 | — | — | — | N/A | Temperature Switch |
| 1996 | Land Rover | Discovery | — | — | — | N/A | Temperature Switch |
| 1995 | Land Rover | Defender 90 | — | — | — | N/A | Temperature Switch |
| 1995 | Land Rover | Discovery | — | — | — | N/A | Temperature Switch |
| 1995 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1994 | Land Rover | Defender 90 | — | — | — | N/A | Temperature Switch |
| 1994 | Land Rover | Discovery | — | — | — | N/A | Temperature Switch |
| 1994 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1993 | Land Rover | Defender 110 | — | — | — | N/A | Temperature Switch |
| 1993 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1992 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1991 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1990 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1989 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1988 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1987 | Audi | Coupe | — | — | — | N/A | Black; Located in Radiator; Temperature Switch |
| 1987 | Land Rover | Range Rover | — | — | — | N/A | Temperature Switch |
| 1986 | Audi | Coupe | — | — | — | N/A | Black; Located in Radiator; Temperature Switch |
| 1985 | Audi | Coupe | — | — | — | N/A | Black; Located in Radiator; Temperature Switch |
| 1985 | Audi | Quattro | — | — | — | N/A | Black; Located in Radiator; Temperature Switch |
| 1985 | Chrysler | Town & Country | 2.2L | L4 | — | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1985 | Porsche | 944 | — | — | — | N/A | Temperature Switch |
| 1984 | Audi | Coupe | — | — | — | N/A | Black; Located in Radiator; Temperature Switch |
| 1984 | Audi | Quattro | — | — | — | N/A | Temperature Switch |
| 1984 | Porsche | 944 | — | — | — | N/A | Temperature Switch |
| 1983 | Audi | Coupe | — | — | — | N/A | Black; Located in Radiator; Temperature Switch |
| 1983 | Audi | Quattro | — | — | — | N/A | Temperature Switch |
| 1983 | Porsche | 944 | — | — | — | N/A | Temperature Switch |
| 1982 | Audi | Coupe | — | — | — | N/A | Black; Located in Radiator; Temperature Switch |
| 1982 | Volkswagen | Vanagon | 1.6L | L4 | DIESEL | N/A | Temperature Switch |
| 1981 | Audi | Coupe | — | — | — | N/A | Black; Located in Radiator; Temperature Switch |
| 1980 | Ford | Fiesta | — | — | — | N/A | Temperature Switch |
| 1979 | Ford | Fiesta | — | — | — | N/A | Temperature Switch |
| 1978 | Ford | Fiesta | — | — | — | N/A | Temperature Switch |
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