HomeBelts and Cooling > SwitchesFour Seasons 37377 Engine Cooling Fan Temperature Switch
Part #: 37377

Four Seasons 37377 Engine Cooling Fan Temperature Switch

Temperature Switch
⚙️ 23 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Temperature Switch
🚗Fitment: Mercury, Ford, and Mazda, Capri, Festiva, 626, Probe, RX-7, and Tracer
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Reliable Engine Cooling Fan Temperature Switch for Ford and Mazda

The Four Seasons 37377 Engine Cooling Fan Temperature Switch is designed to maintain optimal engine temperature by controlling the cooling fan operation. Compatible with select Ford, Mazda, and Mercury models, this temperature switch ensures your vehicle's cooling system functions efficiently.

  • Single terminal quantity with a male connector for secure electrical connection
  • Engine and radiator mounted for accurate temperature sensing
  • Temperature activation range: turns on at 206°F and off at 197°F
  • Meets or exceeds original equipment manufacturer (OEM) specifications
  • Part of the Four Seasons Temperature Switch product line, known for precise temperature control components

Product Line Details: Four Seasons Temperature Switch

The Four Seasons Temperature Switch line focuses on temperature-sensitive components that regulate engine cooling systems. This product line includes switches engineered to activate cooling fans at specific temperature thresholds, helping prevent engine overheating and maintaining consistent operating temperatures. The 37377 switch is a key component within this line, providing reliable temperature control for compatible vehicles.

Detailed Product Description

The Four Seasons 37377 Engine Cooling Fan Temperature Switch is designed for engine and radiator mounting, providing accurate temperature monitoring to control the cooling fan. Featuring a single terminal with a male connector, this switch activates the cooling fan at 206°F and deactivates it at 197°F, ensuring the engine remains within safe operating temperatures. This part meets or exceeds OEM standards, making it a dependable replacement for Ford, Mazda, and Mercury vehicles including the Ford Probe, Mazda RX-7, and Mercury Capri.

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 erratic fan operation caused by inconsistent temperature sensing
  • Helps maintain engine performance by regulating radiator fan engagement
  • Addresses cooling system malfunctions in Ford 626, Mazda Festiva, and Mercury Tracer models

Installation Notes and Tips

  • Ensure the switch is mounted securely on the engine or radiator as specified
  • Verify the male connector terminal is properly connected to avoid electrical issues
  • Check the cooling fan operation after installation to confirm correct temperature activation
  • Consult vehicle service manual for specific mounting location and torque specifications

Quality Assurance and Warranty

The Four Seasons 37377 temperature switch is manufactured to meet or exceed OEM quality standards, ensuring reliable performance and durability. This part undergoes rigorous testing to confirm temperature accuracy and electrical integrity. Please refer to Four Seasons warranty terms for coverage details.

BrandFour Seasons
Part Number37377
PositionTemperature Switch
Connector GenderMale
DescriptionSwitch-Temp /Eng/Rad Mount
Meets / Exceeds OEM?YES
Mnt Sys LocEng/Rad Mounted
StyleTemperature
Temperature Off197
Temperature On206
Terminal Quantity1
TypeCooling Fan

This part fits 23 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
1994MercuryCapriN/ATemperature Switch
1993FordFestivaN/ATemperature Switch
1993MercuryCapriN/ATemperature Switch
1992FordFestivaN/ATemperature Switch
1992MercuryCapriN/ATemperature Switch
1991FordFestivaN/ATemperature Switch
1991Mazda626N/AIn Water Outlet; Temperature Switch
1991MercuryCapriN/ATemperature Switch
1990FordFestivaN/ATemperature Switch
1990Mazda626N/AIn Water Outlet; Temperature Switch
1989FordFestivaN/ATemperature Switch
1989FordProbeManualN/ATemperature Switch
1989Mazda626N/AIn Water Outlet; Temperature Switch
1988FordFestivaN/ATemperature Switch
1988Mazda626N/AIn Water Outlet; Temperature Switch
1988MazdaRX-7N/ATemperature Switch
1988MercuryTracerN/ATemperature Switch
1987Mazda626N/AIn Water Outlet; Temperature Switch
1987MazdaRX-7N/ATemperature Switch
1987MercuryTracerN/ATemperature Switch
1986Mazda626N/AIn Water Outlet; Temperature Switch
1986MazdaRX-7N/ATemperature Switch
1985Mazda6262.0LL4DIESELN/AFrom 11/84; 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:

37377A03777E30118840TU204TU211

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