HomeHVAC > SwitchesFour Seasons 20959 A/C Clutch Cycle Switch
Part #: 20959

Four Seasons 20959 A/C Clutch Cycle Switch

Pressure Switch
⚙️ 2 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pressure Switch
🚗Fitment: Lincoln, Town Car
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Overview of Four Seasons Pressure Switch 20959

The Four Seasons Pressure Switch 20959 is designed for precise control of the A/C clutch cycling in HVAC systems. Specifically engineered for the Lincoln Town Car, this pressure switch ensures reliable operation by monitoring system pressure and activating the clutch accordingly.

  • Compatible with Lincoln Town Car models
  • Part number 20959 for accurate identification
  • System mount design with female fitting
  • Thread size M12 x 1.50 for secure installation
  • Durable plastic and metal construction
  • Operates at 12 volts with two male pin terminals
  • Weather Pack sealed terminals for environmental protection
  • Meets or exceeds OEM specifications
  • Open at 0 psi, cycling style with low off pressure at 19 psi

Detailed Product Description

The Four Seasons Pressure Switch 20959 is a cycling pressure switch designed to regulate the A/C clutch cycle by monitoring refrigerant pressure within the system. It features a system mount location with a female fitting and an M12 x 1.50 thread size, ensuring compatibility and ease of installation on the Lincoln Town Car. The switch includes two male pin terminals with Weather Pack connectors, providing a secure and weather-resistant electrical connection. Constructed from a combination of plastic and metal materials, this pressure switch is built to withstand the demanding conditions of automotive HVAC systems. It operates at 12 volts and is designed to open at 0 psi, with a low off pressure set at 19 psi, allowing for precise cycling control of the A/C clutch.

About the Four Seasons Pressure Switch Product Line

The Pressure Switch line from Four Seasons focuses on delivering reliable pressure sensing components for automotive HVAC systems. These switches are engineered to meet or exceed OEM standards, providing consistent performance and durability. The 20959 model exemplifies this line by offering a cycling style pressure switch that integrates seamlessly with system mounts and includes weather-resistant terminals to maintain electrical integrity under various environmental conditions.

Common Applications and Issues Addressed

  • Regulates A/C clutch cycling to prevent compressor damage
  • Prevents system overpressure or underpressure conditions
  • Ensures proper HVAC system operation in Lincoln Town Car vehicles
  • Helps avoid frequent compressor cycling and associated wear
  • Maintains system efficiency by controlling clutch engagement

Installation Notes and Tips

  • Verify compatibility with Lincoln Town Car before installation
  • Ensure the system mount location is clean and free of debris
  • Use appropriate tools for M12 x 1.50 thread size fittings
  • Check electrical connections for secure Weather Pack terminal engagement
  • Confirm system pressure is within specifications before testing

Quality Assurance and Warranty

The Four Seasons Pressure Switch 20959 meets or exceeds OEM quality standards, ensuring reliable performance and durability. The product is manufactured with high-quality plastic and metal materials and includes weather-resistant terminals to withstand harsh automotive environments. Warranty details should be confirmed with the product documentation or supplier.

BrandFour Seasons
Part Number20959
PositionPressure Switch
DescriptionSwitch-Pressure /System Mount
Fitting GenderFemale
Fitting Thread SizeM12 x 1.50
Item Included A Desc24676
Item Included A Qty.1
MaterialPlastic / Metal
Meets / Exceeds OEM?YES
Mnt Sys LocSystem Mount
Number of Terminals2
Open (at 0 psi.)?Yes
Operate Psi Low Off19
StyleCycling
Terminal GenderMale
Terminal TypePin
TypePressure
Voltage12
Weather Pack?Yes

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2005LincolnTown CarN/AFitment Note: Compatible with various models and years, verify compatibility with your vehicle before purchasing.; Pressure Switch
2004LincolnTown CarN/APressure Switch; White; 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:

111209591551032171153219188181207771209594W1Z19E5610AA4W1Z19E561AA8508712A07771MT1312SW11155SW11155CYH1638

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