HomeHVAC > A/C Clutch and CompressorFour Seasons 20952 A/C Trinary Switch
Part #: 20952

Four Seasons 20952 A/C Trinary Switch

Pressure Switch
⚙️ 38 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pressure Switch
🚗Fitment: Acura and Mazda, NSX, 626, and MX-6
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Overview of Four Seasons Pressure Switch 20952

The Four Seasons Pressure Switch 20952 is a system-mounted trinary pressure switch designed for select Acura and Mazda vehicles. Engineered to meet or exceed OEM specifications, this 12-volt pressure switch ensures reliable operation of your vehicle's HVAC system, particularly in models like the Acura NSX and Mazda CX-7.

  • 12-volt electrical system compatibility
  • Male pin terminal type with four terminals
  • Gray color housing with steel construction
  • 3/8" x 24 male fitting thread size
  • Weather Pack connector for secure connections
  • Open comp and fan switch operation
  • System-mounted trinary pressure switch style
  • Compatible with Acura and Mazda models including 2, 3, 5, 6, 626, CX-7, MX-6, and NSX

Four Seasons Pressure Switch Product Line Details

The Pressure Switch product line from Four Seasons focuses on delivering reliable HVAC control components that integrate seamlessly with vehicle air conditioning clutch and compressor systems. The 20952 A/C Trinary Switch is part of this line, providing precise pressure monitoring and control to protect the compressor and regulate fan operation in compatible Acura and Mazda vehicles.

Detailed Product Description

This Four Seasons Pressure Switch 20952 is a trinary pressure switch designed to monitor refrigerant pressure within the A/C system. It features a 12-volt rating and a durable steel body with a gray finish. The switch includes a male Weather Pack connector with four pin terminals, ensuring a secure and weather-resistant electrical connection. The 3/8" x 24 male fitting thread size allows for direct system mounting, simplifying installation. Both the compressor and fan switches operate in an open state, providing accurate pressure control to maintain system efficiency and protect components.

Common Applications and Issues Addressed

  • Prevents compressor damage due to abnormal refrigerant pressure
  • Controls fan operation to maintain optimal engine temperature
  • Ensures proper A/C clutch engagement in Acura and Mazda models
  • Helps avoid system shutdowns caused by pressure irregularities
  • Maintains HVAC system performance in vehicles like the Mazda MX-6 and Acura 3

Installation Notes and Tips

  • Verify compatibility with your specific Acura or Mazda model before installation
  • Ensure the system is depressurized before removing the old pressure switch
  • Use appropriate tools to avoid damaging the 3/8" x 24 male fitting thread
  • Check electrical connections for secure fit with the Weather Pack male connector
  • Follow vehicle manufacturer torque specifications when mounting the switch

Quality Assurance and Warranty

The Four Seasons Pressure Switch 20952 meets or exceeds OEM standards for fit, form, and function. Constructed from steel with a weather-resistant connector, it is built for durability in demanding automotive environments. This part is backed by Four Seasons' quality assurance protocols, ensuring reliable performance in compatible Acura and Mazda vehicles. Warranty details are provided by Four Seasons and should be confirmed at the time of purchase.

BrandFour Seasons
Part Number20952
PositionPressure Switch
ColorGray
Comp Open/ClosedOpen
Connector GenderMale
DescriptionSystem Mounted Trinary Pressure Switch
Fan Open/ClosedOpen
Fitting GenderMale
Fitting Thread Size3/8" x 24
Item Included A Desc24606
Item Included A Qty.1
MaterialSteel
Meets / Exceeds OEM?YES
Mnt Sys LocSystem Mounted
Number of Terminals4
StylePressure
Terminal TypePin
TypeTrinary
Voltage12
Weather Pack?Yes

This part fits 38 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2014Mazda2N/APressure Switch
2013Mazda2N/APressure Switch
2012Mazda2N/APressure Switch
2011Mazda2N/APressure Switch
2010Mazda5N/APressure Switch
2009Mazda3N/APressure Switch
2009Mazda5N/APressure Switch
2008Mazda3N/APressure Switch
2008Mazda5N/APressure Switch
2008MazdaCX-7N/ATo 5/1/08; Pressure Switch
2007Mazda3N/APressure Switch
2007Mazda5N/APressure Switch
2007Mazda6N/APressure Switch
2007MazdaCX-7N/APressure Switch
2006Mazda3N/APressure Switch
2006Mazda5N/APressure Switch
2006Mazda6N/APressure Switch
2005AcuraNSXN/APressure Switch
2005Mazda3N/APressure Switch
2004AcuraNSXN/APressure Switch
2004Mazda3N/APressure Switch
2003AcuraNSXN/APressure Switch
2002AcuraNSXN/APressure Switch
2001AcuraNSXN/APressure Switch
2000AcuraNSXN/APressure Switch
1999AcuraNSXN/APressure Switch
1998AcuraNSXN/APressure Switch
1997AcuraNSXN/APressure Switch
1997Mazda626N/APressure Switch
1996AcuraNSXN/APressure Switch
1996Mazda626N/APressure Switch
1996MazdaMX-62.5LV6N/APressure Switch
1995AcuraNSXN/APressure Switch
1995Mazda626N/APressure Switch
1995MazdaMX-62.5LV6N/APressure Switch
1994AcuraNSXN/APressure Switch
1994Mazda626N/APressure Switch
1994MazdaMX-62.5LV6N/APressure 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:

11120952155102817116781918817620776420952A07764GB6M61503MT0620SW11149SW11149C

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