HomeHVAC > SwitchesFour Seasons 20054 HVAC Cut-Off Switch
Part #: 20054

Four Seasons 20054 HVAC Cut-Off Switch

Pressure Switch
13 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Pressure Switch
Fitment: Ford and Mercury, Ranger, Explorer, Explorer Sport Trac, and Mountaineer
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Four Seasons 20054 Pressure Switch Overview

Four Seasons Pressure Switch 20054 is a system-mounted HVAC cut-off switch for high-pressure A/C protection. It is built with a brown plastic and metal body, a round female connector, and a 10mm x 1.25 female fitting for direct service on the A/C system. This 12-volt pressure switch uses a 2-pin terminal layout and a closed-comp operation profile for pressure control in the HVAC circuit.

Compatible With Ford Ranger, Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer applications that use a high-pressure A/C system mounted switch. Four Seasons 20054 is an OE-style pressure switch replacement for vehicles needing accurate high cut-out control.

Key Features

  • HVAC cut-off switch for high-pressure A/C system control
  • System-mounted pressure switch design
  • Brown plastic / metal construction
  • Round female connector with 2-pin terminal layout
  • 10mm x 1.25 female thread fitting
  • 12-volt electrical specification
  • High cut-out style with closed-comp operation
  • Weather Pack sealed connection
  • Meets or exceeds OEM requirements

Product Details

The Four Seasons Pressure Switch line focuses on HVAC control components that manage refrigerant system pressure and protect A/C hardware from unsafe operating conditions. Part number 20054 is a pressure-operated cut-off switch that mounts directly in the system and uses a high-pressure threshold to open the circuit when pressure rises to the specified limit. It is a direct-fit service part for Ford Ranger, Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer models listed below. This part cross-references UAC SW11167C for the same application.

Fits 2009-2011 Ford Ranger, N/A; Fits 2009-2010 Ford Explorer, N/A; Fits 2009-2010 Ford Explorer Sport Trac, N/A; Fits 2004-2005 Ford Explorer, N/A; Fits 2004-2005 Ford Explorer Sport Trac, N/A; Fits 2004-2005 Mercury Mountaineer, N/A.

Common Problems This Part Can Address

  • A/C compressor shutdown caused by high system pressure
  • Intermittent HVAC operation from a failing pressure switch
  • Loss of A/C protection logic in the refrigerant circuit
  • Faulty pressure signal at the system-mounted switch location
  • Electrical connection issues at the HVAC pressure switch interface

Installation Notes and Tips

Verify the connector style, 10mm x 1.25 thread size, and vehicle application before installation. This pressure switch is system mounted and should be matched to the correct high-pressure A/C configuration for the vehicle. Confirm the existing switch location and harness connector before replacement to ensure proper fitment on Ford Explorer, Ford Explorer Sport Trac, Ford Ranger, or Mercury Mountaineer applications.

Quality Assurance

Four Seasons 20054 is listed as meeting or exceeding OEM requirements, making it a service replacement built to OE-level specifications for HVAC pressure control.

BrandFour Seasons
Part Number20054
PositionPressure Switch
ColorBrown
Comp Open/ClosedClosed
Connector GenderFemale
Connector ShapeRound
DescriptionSwitch-Pressure /System Mount
Fitting GenderFemale
Fitting Thread Size10mm x 1.25
Harness Connector[37235] / Harness Connector
Item Included A Desc24606
Item Included A Qty.1
MaterialPlastic / Metal
Meets / Exceeds OEM?YES
Mnt Sys LocSystem Mounted
Number of Terminals2
Off Pressure485
Operate Psi High Off485
Operate Psi High On280
StyleHigh Cut-Out
Terminal TypePin
TypePressure
Voltage12
Weather Pack?Yes

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011FordRanger4.0LV6N/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure Switch
2010FordExplorerN/AHigh Pressure A/C System Mounted; w/ Rear AC; Pressure Switch
2010FordExplorer Sport TracN/AHigh Pressure A/C System Mounted; w/ Rear AC; Pressure Switch
2010FordRanger4.0LV6N/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure Switch
2009FordExplorerN/AHigh Pressure A/C System Mounted; w/ Rear AC; Pressure Switch
2009FordExplorer Sport TracN/AHigh Pressure A/C System Mounted; w/ Rear AC; Pressure Switch
2009FordRanger4.0LV6N/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure Switch
2005FordExplorerN/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure Switch
2005FordExplorer Sport TracN/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure Switch
2005MercuryMountaineerN/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure Switch
2004FordExplorerN/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure Switch
2004FordExplorer Sport TracN/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure Switch
2004MercuryMountaineerN/AFitment Note: HVAC Cut-Off Switch for High Pressure A/C System Mounted; Pressure 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:

111200541551166171152319194739200542078524C4Z13K359AA4C4Z19D594A6L2Z19D594AA904621A07852F3AH19D594CAF3AZ19D594CMT1194SW11167SW11167CSW6092SW6393

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