HomeBelts and Cooling > SwitchesFour Seasons 36549 Engine Cooling Fan Switch
Part #: 36549

Four Seasons 36549 Engine Cooling Fan Switch

Temperature Switch
⚙️ 49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Temperature Switch
🚗Fitment: Lexus and Toyota, GS300, GS430, Camry, Solara, GS400, LS400, RAV4, Celica, MR2, and Tercel
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Reliable Engine Cooling Fan Switch for Lexus and Toyota Vehicles

The Four Seasons Temperature Switch 36549 is designed to maintain optimal engine temperature by controlling the cooling fan operation. Engineered for select Lexus and Toyota models, this engine cooling fan switch ensures precise temperature regulation to protect your vehicle's engine.

  • Connector color: White with rectangular shape for secure fit
  • Two male terminals for reliable electrical connection
  • Engine-mounted installation with M16-1.50 male fitting thread size
  • Temperature activation range: turns on at 194°F and off at 185°F
  • Meets or exceeds OEM specifications for dependable performance

About the Four Seasons Temperature Switch Product Line

The Temperature Switch line by Four Seasons focuses on temperature-sensitive components that regulate engine cooling systems. This product line includes switches designed to activate or deactivate cooling fans based on engine temperature, helping maintain efficient engine operation and prevent overheating. The 36549 switch is part of this line, offering precise temperature control and compatibility with various Lexus and Toyota models.

Detailed Product Description

The Four Seasons 36549 engine cooling fan switch is a temperature-activated switch that mounts directly on the engine. It features a white rectangular connector with two male terminals, ensuring a secure and stable electrical connection. The switch operates within a specific temperature range, activating the cooling fan at 194°F and turning it off at 185°F to maintain optimal engine temperature. Its M16-1.50 male fitting thread size allows for straightforward installation on compatible vehicles. This switch is designed to replace original equipment manufacturer parts, meeting or exceeding OEM standards for quality and durability.

Common Applications and Issues Addressed

  • Prevents engine overheating by activating the cooling fan at the correct temperature
  • Resolves cooling fan failure due to faulty temperature switch
  • Eliminates intermittent fan operation caused by worn or damaged switches
  • Ensures proper engine temperature regulation for Lexus Camry, GS300, LS400, and Toyota RAV4, Celica, MR2 models
  • Improves engine performance by maintaining consistent cooling fan control

Installation Notes and Tips

  • Ensure the engine is cool before attempting installation to avoid burns
  • Verify the connector color and shape match your vehicle’s wiring harness (white rectangular connector with two male terminals)
  • Use appropriate tools to remove the old switch and install the new one with the M16-1.50 thread size
  • Check for secure electrical connections and proper mounting location on the engine
  • Test the cooling fan operation after installation to confirm correct function

Quality Assurance and Warranty

The Four Seasons Temperature Switch 36549 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. This part undergoes rigorous quality control to maintain consistent standards. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.

BrandFour Seasons
Part Number36549
PositionTemperature Switch
Connector ColorWhite
Connector GenderMale
Connector ShapeRectangular
DescriptionSwitch-Temp /Engine Mount
Fan Open/ClosedClosed
Fitting GenderMale
Fitting Thread SizeM16-1.50
Meets / Exceeds OEM?YES
Mnt Sys LocEngine Mounted
StyleTemperature
Temperature Off185
Temperature On194
Terminal Quantity2
TypeCooling Fan

This part fits 49 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003LexusGS300N/AEngine mounted coolant fan switch; Temperature Switch
2003LexusGS430N/AEngine mounted coolant fan switch; Temperature Switch
2002LexusGS300N/AEngine mounted coolant fan switch; Temperature Switch
2002LexusGS430N/AEngine mounted coolant fan switch; Temperature Switch
2001LexusGS300N/AEngine mounted coolant fan switch; Temperature Switch
2001LexusGS430N/AEngine mounted coolant fan switch; Temperature Switch
2001ToyotaCamry2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
2001ToyotaSolara2.2LL4N/AEngine Mounted; Position No. 2 In Switch Block; Temperature Switch
2000LexusGS300N/AEngine mounted coolant fan switch; Temperature Switch
2000LexusGS400N/AEngine mounted coolant fan switch; Temperature Switch
2000LexusLS400N/AEngine mounted coolant fan switch; Temperature Switch
2000ToyotaCamry2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
2000ToyotaRAV42.0LL4N/AEngine Mounted; To 7/00; Temperature Switch
2000ToyotaSolara2.2LL4N/AEngine Mounted; Position No. 2 In Switch Block; Temperature Switch
1999LexusGS300N/AEngine mounted coolant fan switch; Temperature Switch
1999LexusGS400N/AEngine mounted coolant fan switch; Temperature Switch
1999LexusLS400N/AEngine mounted coolant fan switch; Temperature Switch
1999ToyotaCamry2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1999ToyotaCelicaN/AEngine mounted coolant fan switch; Temperature Switch
1999ToyotaRAV42.0LL4N/AEngine mounted coolant fan switch; Temperature Switch
1999ToyotaSolara2.2LL4N/AEngine Mounted; Position No. 2 In Switch Block; Temperature Switch
1998LexusGS300N/AEngine mounted coolant fan switch; Temperature Switch
1998LexusGS400N/AEngine mounted coolant fan switch; Temperature Switch
1998LexusLS400N/AEngine mounted coolant fan switch; Temperature Switch
1998ToyotaCamry2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1998ToyotaCelicaN/AEngine mounted coolant fan switch; Temperature Switch
1998ToyotaRAV42.0LL4N/AEngine mounted coolant fan switch; Temperature Switch
1997LexusGS300N/AEngine mounted coolant fan switch; Temperature Switch
1997LexusLS400N/AEngine mounted coolant fan switch; Temperature Switch
1997ToyotaCamry2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1997ToyotaCelica2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1997ToyotaRAV4N/AEngine mounted coolant fan switch; Temperature Switch
1996LexusLS400N/AEngine mounted coolant fan switch; Temperature Switch
1996ToyotaCamry2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1996ToyotaCelica2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1996ToyotaRAV4N/AEngine mounted coolant fan switch; Temperature Switch
1995LexusLS400N/AEngine mounted coolant fan switch; Temperature Switch
1995ToyotaCamry2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1995ToyotaCelica2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1994LexusLS400N/AEngine mounted coolant fan switch; Temperature Switch
1994ToyotaCamryN/AEngine mounted coolant fan switch; Temperature Switch
1994ToyotaCelica2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1994ToyotaMR2N/AEngine mounted coolant fan switch; Temperature Switch
1993ToyotaCamryN/AEngine mounted coolant fan switch; Temperature Switch
1993ToyotaCelica2.2LL4N/AEngine mounted coolant fan switch; Temperature Switch
1993ToyotaMR2N/AEngine mounted coolant fan switch; Temperature Switch
1992ToyotaCamryN/AEngine mounted coolant fan switch; Temperature Switch
1992ToyotaMR2N/AEngine mounted coolant fan switch; Temperature Switch
1990ToyotaTercel1.5LL4N/AEngine mounted coolant fan switch; 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:

11136549155959171140619189547207640211771212771365494915801948889996528942833010A77640AC8582HS771MT0552SW11211SW11211CSW1434SW8513

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.