HomeHVAC > SwitchesFour Seasons 37325 A/C Clutch Cycle Switch
Part #: 37325

Four Seasons 37325 A/C Clutch Cycle Switch

Temperature Switch
⚙️ 31 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Temperature Switch
🚗Fitment: Toyota, Highlander, Sienna, Sequoia, and Tundra
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Reliable Temperature Control for Toyota HVAC Systems

The Four Seasons Temperature Switch 37325 is designed to provide precise electronic activation control for your vehicle's air conditioning system. Engineered for Toyota models including Highlander, Sequoia, Sienna, and Tundra, this A/C clutch cycle switch ensures consistent cycling to maintain optimal system performance.

  • Electronic activation control for accurate temperature regulation
  • Durable black plastic construction with a square connector shape
  • System mount design for straightforward installation
  • Operates at 12 volts with two terminals for reliable connectivity
  • Temperature cycling style with on/off thresholds at 38°F and 32°F
  • Meets or exceeds OEM specifications for Toyota HVAC systems

About the Four Seasons Temperature Switch Product Line

The Temperature Switch line by Four Seasons focuses on delivering precise temperature-based control components for automotive HVAC systems. This product line includes switches designed to cycle the A/C clutch on and off electronically, helping maintain the desired cabin temperature and system efficiency. The 37325 switch is part of this line, offering compatibility with select Toyota vehicles and engineered to meet OEM standards.

Detailed Product Description

The Four Seasons 37325 A/C Clutch Cycle Switch is a temperature-activated switch that mounts directly to the HVAC system. It features a cycling style operation, turning the A/C clutch on at 38°F and off at 32°F to regulate compressor engagement based on system temperature. The switch uses a 12-volt electrical system and includes two terminals with a square connector shape for secure connections. Its black plastic housing is designed for durability and resistance to environmental factors, although it does not include a Weather Pack connector. This switch is compatible with Toyota Highlander, Sequoia, Sienna, and Tundra models, ensuring proper fit and function.

Common Applications and Issues Addressed

  • Regulates A/C clutch cycling to prevent compressor overuse
  • Maintains consistent cabin temperature by controlling system activation
  • Prevents HVAC system overheating or freezing by cycling at set temperatures
  • Replaces faulty or worn temperature switches causing A/C cycling problems
  • Ensures proper operation of Toyota HVAC systems in Highlander, Sequoia, Sienna, and Tundra vehicles

Installation Notes and Tips

  • Mount the switch securely on the HVAC system as specified for your Toyota model
  • Ensure the two-terminal square connector is properly seated to avoid electrical issues
  • Verify system voltage is 12 volts before installation
  • Check temperature thresholds to confirm switch operation after installation
  • Consult vehicle service manual for specific mounting location and wiring details

Quality Assurance and Warranty

The Four Seasons Temperature Switch 37325 meets or exceeds OEM specifications, providing reliable performance for Toyota HVAC systems. Manufactured with quality plastic materials and tested for durability, this switch is backed by Four Seasons' commitment to automotive component standards. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandFour Seasons
Part Number37325
PositionTemperature Switch
Activation ControlElectronic
ColorBlack
Connector ShapeSquare
DescriptionSwitch-Temp /System Mount
MaterialPlastic
Meets / Exceeds OEM?YES
Mnt Sys LocSystem Mount
Number of Terminals2
StyleCycling
Temperature Off32
Temperature On38
TypeTemperature
Voltage12
Weather Pack?No

This part fits 31 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010ToyotaHighlanderN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2010ToyotaSiennaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2009ToyotaHighlanderN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2009ToyotaSiennaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2008ToyotaHighlanderN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2008ToyotaSiennaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2007ToyotaHighlander3.3LV6N/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2007ToyotaSequoiaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2007ToyotaSiennaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2006ToyotaHighlander3.3LV6N/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2006ToyotaSequoiaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2006ToyotaSiennaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2006ToyotaTundraN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2005ToyotaHighlander3.3LV6N/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2005ToyotaSequoiaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2005ToyotaSiennaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2005ToyotaTundraN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2004ToyotaHighlanderN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2004ToyotaSequoiaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2004ToyotaSiennaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2004ToyotaTundraN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2003ToyotaHighlanderN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2003ToyotaSequoiaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2003ToyotaTundraN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2002ToyotaHighlanderN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2002ToyotaSequoiaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2002ToyotaTundraN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2001ToyotaHighlanderN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2001ToyotaSequoiaN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2001ToyotaTundraN/AA/C Clutch Cycle Switch (Temperature Switch); Temperature Switch
2000ToyotaTundraN/AA/C Clutch Cycle Switch (Temperature 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:

203725324002737325886250C010A03725MT1636

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