Four Seasons
Temperature Switch

Four Seasons 36510 Engine Cooling Fan Switch

Brand Four Seasons 36510
Connector Color White
Connector Gender Female
Connector Shape Rectangular
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 185 / 203
Temperature On 188 / 215
Terminal Pin Qty. 3
Terminal Quantity 3
Type Temperature
Product line Temperature Switch
Fits Audi, Volkswagen, and Porsche · 182 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable cooling control.

Temperature switch. Opens and closes at set temperatures for precise fan operation.

Three-terminal design. Rectangular female connector with M22 x 1.50 thread.

Cross-references Anchor 3437, Four Seasons 36510 and Gates 51746 for the same application. See all 21.

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Engine Cooling Fan Switch for Audi and Volkswagen

The Four Seasons 36510 Temperature Switch is a radiator-mounted engine cooling fan switch built for vehicles that use a 3-terminal, female connector setup. It monitors coolant temperature and signals the fan circuit at the specified on/off points to help maintain stable operating temperatures in Audi, Volkswagen, and Porsche applications.

Four Seasons Temperature Switch line parts are focused on direct-fit cooling system control, with OE-style fitment details such as the M22x1.50 male thread, rectangular white connector, and 3-pin terminal layout. This Four Seasons 36510 switch meets or exceeds OEM requirements for the listed applications.

Key Features

  • Radiator-mount temperature switch for engine cooling fan control
  • M22 x 1.50 male thread for listed radiator applications
  • White rectangular female connector with 3 terminals
  • Fan open/closed operating range: 185/203 and 188/215
  • Meets or exceeds OEM specifications
  • Direct replacement for select Audi, Volkswagen, and Porsche models

Detailed Description

The Four Seasons 36510 is a temperature switch used in radiator-mounted cooling fan systems to help regulate fan operation based on coolant temperature. It is specified with an open fan function, a 3-terminal pin layout, and a male M22x1.50 fitting thread, making it a precise match for many older European cooling systems. If you are replacing a failed radiator fan temperature switch on an Audi A4, Audi A6, Volkswagen Passat, or Porsche 944, this part number is a direct-fit option for the listed vehicles.

This part cross-references Gates 51746 for the same application.

What It Helps Address

  • Cooling fan that does not switch on at the correct temperature
  • Cooling fan that runs too late or cycles inconsistently
  • Overheating caused by a faulty radiator temperature switch
  • Intermittent fan operation from worn switch contacts
  • Temperature control issues in radiator-mounted fan circuits

Installation Notes and Fitment

Install in the radiator-mounted location specified by the vehicle application and verify the connector style, terminal count, and thread size before replacement. Confirm the cooling system is cool before removal, and match the existing switch’s temperature range and connector configuration to the vehicle’s original setup.

Compatible With: Fits 1996-2002 Audi A4, N/A; Fits 1997-2002 Audi A4 Quattro, N/A; Fits 1999-2001 Volkswagen Passat, N/A; Fits 1994-1998 Audi Cabriolet, N/A; Fits 1998 Volkswagen Passat, N/A; Fits 1990-1994 Volkswagen Passat, N/A; Fits 1995-1997 Audi A6, N/A; Fits 1995-1997 Audi A6 Quattro, N/A; Fits 1995-1997 Audi S6, N/A; Fits 1993-1995 Audi 90, N/A; Fits 1988-1991 Audi 90, N/A; Fits 1993-1995 Audi 90 Quattro, N/A; Fits 1988-1991 Audi 90 Quattro, N/A; Fits 1989-1994 Audi 100, N/A; Fits 1989-1994 Audi 100 Quattro, N/A; Fits 1986-1994 Volkswagen Golf, N/A; Fits 1986-1994 Volkswagen Jetta, N/A; Fits 1985-1993 Volkswagen Cabriolet, N/A; Fits 1987-1993 Volkswagen Fox, N/A; Fits 1991-1992 Audi 80, N/A; Fits 1988-1992 Audi 80 Quattro, N/A; Fits 1992 Audi 90 Quattro, N/A; Fits 1989-1991 Audi 200, N/A; Fits 1989-1991 Audi 200 Quattro, N/A; Fits 1990-1991 Audi Coupe Quattro, N/A; Fits 1988-1990 Audi 80, N/A; Fits 1985-1990 Porsche 944, N/A; Fits 1986-1988 Audi 5000 Quattro, N/A; Fits 1982-1988 Volkswagen Quantum, N/A; Fits 1985-1987 Audi 4000, N/A; Fits 1985-1987 Audi 4000 Quattro, N/A; Fits 1981-1987 Audi Coupe, N/A; Fits 1985 Volkswagen Golf, N/A; Fits 1982-1985 Volkswagen Jetta, N/A; Fits 1983-1984 Porsche 944, N/A; Fits 1980-1984 Volkswagen Rabbit Convertible, N/A; Fits 1980-1984 Volkswagen Vanagon, N/A; Fits 1980-1983 Volkswagen Rabbit Pickup, N/A; Fits 1977-1982 Porsche 924, N/A; Fits 1978-1981 Porsche 928, N/A.

Quality Assurance

Four Seasons lists this temperature switch as meeting or exceeding OEM requirements for the specified applications, supporting accurate replacement in radiator-mounted cooling fan systems.

This part fits 182 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersPositionNotes
2002AudiA4———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
2002AudiA4 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
2001AudiA4———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
2001AudiA4 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
2001VolkswagenPassat———N/A3 Blade Term.; Temperature Switch
2000AudiA4———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
2000AudiA4 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
2000VolkswagenPassat———N/A3 Blade Term.; Temperature Switch
1999AudiA4———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1999AudiA4 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1999VolkswagenPassat———N/A3 Blade Term.; Temperature Switch
1998AudiA4———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1998AudiA4 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1998AudiCabriolet———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1998VolkswagenPassat———N/ARadiator Mounted; 3 Term; Temperature Switch
1997AudiA4———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1997AudiA4 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1997AudiA6———N/ATemperature Switch
1997AudiA6 QuattroAWD——N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1997AudiCabriolet———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1997AudiS6———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1996AudiA4———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1996AudiA6———N/ATemperature Switch
1996AudiA6 QuattroAWD——N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1996AudiCabriolet———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1996AudiS6———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1995Audi90———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1995Audi90 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1995AudiA6———N/ATemperature Switch
1995AudiA6 QuattroAWD——N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1995AudiCabriolet———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1995AudiS6———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1994Audi100———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1994Audi100 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1994Audi90———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1994Audi90 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1994AudiCabriolet———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1994VolkswagenGolf———N/ARadiator Mounted; 3 Term; Temperature Switch
1994VolkswagenJetta———N/ARadiator Mounted; 3 Term; Temperature Switch
1994VolkswagenPassat———N/ARadiator Mounted; 3 Term; Temperature Switch
1993Audi100———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1993Audi100 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1993Audi90———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1993Audi90 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1993VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1993VolkswagenFox———N/ARadiator Mounted; 3 Term; Temperature Switch
1993VolkswagenGolf———N/ARadiator Mounted; 3 Term; Temperature Switch
1993VolkswagenJetta———N/ARadiator Mounted; 3 Term; Temperature Switch
1993VolkswagenPassat———N/ARadiator Mounted; 3 Term; Temperature Switch
1992Audi100———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1992Audi100 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1992Audi80———N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1992Audi80 QuattroAWD——N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1992Audi90 QuattroAWD——N/A3 Blade Term.; Temperature Switch
1992VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1992VolkswagenFox———N/ARadiator Mounted; 3 Term; Temperature Switch
1992VolkswagenGolf———N/ARadiator Mounted; 3 Term; Temperature Switch
1992VolkswagenJetta———N/ARadiator Mounted; 3 Term; Temperature Switch
1992VolkswagenPassat———N/ARadiator Mounted; 3 Term; Temperature Switch
1991Audi100———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1991Audi100 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1991Audi200———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1991Audi200 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1991Audi80———N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1991Audi80 QuattroAWD——N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1991Audi90———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1991Audi90 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1991AudiCoupe Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1991VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1991VolkswagenFox———N/ARadiator Mounted; 3 Term; Temperature Switch
1991VolkswagenGolf———N/ARadiator Mounted; 3 Term; Temperature Switch
1991VolkswagenJetta———N/ARadiator Mounted; 3 Term; Temperature Switch
1991VolkswagenPassat———N/ARadiator Mounted; 3 Term; Temperature Switch
1990Audi100———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990Audi100 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990Audi200———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990Audi200 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990Audi80———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990Audi80 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990Audi90———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990Audi90 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990AudiCoupe Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1990Porsche944———N/ATemperature Switch
1990VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1990VolkswagenFox———N/ARadiator Mounted; 3 Term; Temperature Switch
1990VolkswagenGolf———N/ARadiator Mounted; 3 Term; Temperature Switch
1990VolkswagenJetta———N/ARadiator Mounted; 3 Term; Temperature Switch
1990VolkswagenPassat———N/ARadiator Mounted; 3 Term; Temperature Switch
1989Audi100———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1989Audi100 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1989Audi200———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1989Audi200 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1989Audi80———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1989Audi80 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1989Audi90———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1989Audi90 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1989Porsche944———N/ATemperature Switch
1989VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1989VolkswagenFox———N/ARadiator Mounted; 3 Term; Temperature Switch
1989VolkswagenGolf———N/ARadiator Mounted; 3 Term; Temperature Switch
1989VolkswagenJetta———N/ARadiator Mounted; 3 Term; Temperature Switch
1988Audi5000 QuattroAWD2.3LL5N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1988Audi5000 QuattroAWD2.2LL5N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1988Audi80———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1988Audi80 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1988Audi90———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1988Audi90 Quattro———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1988Porsche944———N/ATemperature Switch
1988VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1988VolkswagenFox———N/ARadiator Mounted; 3 Term; Temperature Switch
1988VolkswagenGolf———N/ARadiator Mounted; 3 Term; Temperature Switch
1988VolkswagenJetta—1.8LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1988VolkswagenQuantum———N/ARadiator Mounted; 3 Term; Temperature Switch
1987Audi4000———N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1987Audi4000 Quattro———N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1987Audi5000 QuattroAWD2.3LL5N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1987Audi5000 QuattroAWD2.2LL5N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1987AudiCoupe———N/AOn Radiator; 3 Blade Term.; Temperature Switch
1987Porsche944———N/ATemperature Switch
1987VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1987VolkswagenFox———N/ARadiator Mounted; 3 Term; Temperature Switch
1987VolkswagenGolf—1.6LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1987VolkswagenJetta—1.8LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1987VolkswagenQuantum———N/ARadiator Mounted; 3 Term; Temperature Switch
1986Audi4000———N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1986Audi4000 Quattro———N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1986Audi5000 QuattroAWD——N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1986AudiCoupe———N/AOn Radiator; 3 Blade Term.; Temperature Switch
1986Porsche944———N/ATemperature Switch
1986VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1986VolkswagenGolf—1.8LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1986VolkswagenJetta—1.8LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1986VolkswagenQuantum———N/ARadiator Mounted; 3 Term; Temperature Switch
1985Audi4000———N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1985Audi4000 Quattro———N/ALocated in Radiator; 3 Blade Term.; Temperature Switch
1985AudiCoupe———N/AOn Radiator; 3 Blade Term.; Temperature Switch
1985Porsche944———N/ATemperature Switch
1985VolkswagenCabriolet———N/ARadiator Mounted; 3 Term; Temperature Switch
1985VolkswagenGolf—1.6LL4N/ARadiator Mount; Temperature Switch
1985VolkswagenGolf—1.8LL4N/ARadiator Mount; Temperature Switch
1985VolkswagenJetta—1.6LL4N/A3 Blade Term.; Temperature Switch
1985VolkswagenJetta—1.8LL4N/A3 Blade Term.; Temperature Switch
1985VolkswagenQuantum—2.2LL5N/ARadiator Mounted; 3 Term; Temperature Switch
1985VolkswagenQuantum—1.8LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1984AudiCoupe———N/AOn Radiator; 3 Blade Term.; Temperature Switch
1984Porsche944———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1984VolkswagenJetta———N/A3 Blade Term.; Temperature Switch
1984VolkswagenQuantum—2.2LL5N/ARadiator Mounted; 3 Term; Temperature Switch
1984VolkswagenQuantum—1.8LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1984VolkswagenRabbit Convertible———N/ARadiator Mounted; 3 Term; Temperature Switch
1984VolkswagenVanagon———N/ARadiator Mounted; 3 Term; Temperature Switch
1983AudiCoupe———N/AOn Radiator; 3 Blade Term.; Temperature Switch
1983Porsche944———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1983VolkswagenJetta———N/A3 Blade Term.; Temperature Switch
1983VolkswagenQuantum—2.2LL5N/ARadiator Mounted; 3 Term; Temperature Switch
1983VolkswagenQuantum—1.7LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1983VolkswagenRabbit Convertible———N/ARadiator Mounted; 3 Term; Temperature Switch
1983VolkswagenRabbit Pickup—1.7LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1983VolkswagenVanagon———N/ARadiator Mounted; 3 Term; Temperature Switch
1982AudiCoupe———N/AOn Radiator; 3 Blade Term.; Temperature Switch
1982Porsche924———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1982VolkswagenJetta———N/A3 Blade Term.; Temperature Switch
1982VolkswagenQuantum—1.7LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1982VolkswagenRabbit Convertible———N/ARadiator Mounted; 3 Term; Temperature Switch
1982VolkswagenRabbit Pickup—1.7LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1982VolkswagenVanagon———N/ARadiator Mounted; 3 Term; Temperature Switch
1981AudiCoupe———N/AOn Radiator; 3 Blade Term.; Temperature Switch
1981Porsche924———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1981Porsche928———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1981VolkswagenRabbit Convertible———N/ARadiator Mounted; 3 Term; Temperature Switch
1981VolkswagenRabbit Pickup—1.7LL4N/ARadiator Mounted; 3 Term; Temperature Switch
1981VolkswagenVanagon———N/ARadiator Mounted; 3 Term; Temperature Switch
1980Porsche924———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1980Porsche928———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1980VolkswagenRabbit Convertible———N/ARadiator Mounted; 3 Term; Temperature Switch
1980VolkswagenRabbit Pickup———N/ARadiator Mounted; 3 Term; Temperature Switch
1980VolkswagenVanagon———N/ARadiator Mounted; 3 Term; Temperature Switch
1979Porsche924———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1979Porsche928———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1978Porsche924———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1978Porsche928———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
1977Porsche924———N/ARadiator Mounted Engine Cooling Fan Switch; Temperature Switch
Directly replaces or cross-references 21 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 3437Four Seasons — 36510Gates — 51746Karlyn — 50315Marmon Ride Control — A66141559372078702117642127648019651711384111365101918952588999674321959481A321959481DAC8594HS764MT0561SW509SW8374