HomeHVAC > A/C Clutch and CompressorUniversal Air SW6490C A/C Thermostat
Part #: SW6490C

Universal Air SW6490C A/C Thermostat

Thermostatic Switch
38 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Thermostatic Switch
Fitment: American Motors, Mercury, and Ford, Gremlin, Hornet, Comet, Cougar, Montego, Falcon, and Mustang
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Overview of Universal Air SW6490C A/C Thermostat

The Universal Air SW6490C is a reliable A/C thermostat designed specifically for select Ford and Mercury vehicles. This thermostatic switch ensures proper operation of the HVAC system by regulating temperature control within the A/C clutch and compressor assembly.

  • Compatible with Ford Mustang, Mercury Cougar, and Mercury Montego models
  • Part number SW6490C for precise identification and fitment
  • Part of the Universal Air Thermostatic Switch product line
  • Designed for HVAC A/C clutch and compressor systems
  • Ensures accurate temperature regulation for efficient A/C performance

Product Line: Universal Air Thermostatic Switch

The Thermostatic Switch line by Universal Air focuses on components that regulate temperature within automotive HVAC systems. This product line includes thermostats engineered to maintain optimal operation of A/C clutches and compressors, contributing to consistent climate control in compatible vehicles. The SW6490C is a part of this line, providing dependable temperature sensing and switching functions for Ford and Mercury models.

Detailed Product Description

The SW6490C A/C thermostat is engineered to work seamlessly with the HVAC systems of Ford Mustang, Mercury Cougar, and Mercury Montego vehicles. It functions as a thermostatic switch that monitors and controls the temperature within the A/C clutch and compressor assembly. By accurately sensing temperature changes, it helps engage or disengage the compressor clutch as needed, preventing overheating and ensuring efficient air conditioning performance. This part is essential for maintaining the proper cycling of the A/C system and avoiding potential damage caused by temperature fluctuations.

Common Applications and Issues Addressed

  • Prevents compressor clutch from overheating during operation
  • Helps maintain consistent cabin temperature in Ford Mustang and Mercury models
  • Reduces risk of HVAC system failure due to temperature misregulation
  • Addresses intermittent A/C clutch engagement problems
  • Supports proper cycling of the A/C compressor in Cougar and Montego vehicles

Installation Notes and Tips

  • Ensure vehicle compatibility with Ford Mustang, Mercury Cougar, or Mercury Montego before installation
  • Disconnect the battery and relieve system pressure prior to replacement
  • Follow manufacturer torque specifications when securing the thermostat
  • Inspect related HVAC components for wear or damage during installation
  • Test the A/C system after installation to confirm proper operation

Quality Assurance and Warranty

The Universal Air SW6490C is manufactured to meet industry standards for HVAC components. While specific warranty details are not provided, Universal Air products typically undergo quality control testing to ensure durability and reliable performance in automotive applications. For warranty information, refer to the product packaging or contact the manufacturer directly.

This part fits 38 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1971MercuryCougar7.0LV8N/AThermostatic Switch
1971MercuryCougar5.8LV8N/AThermostatic Switch
1971MercuryMontego5.8LV8N/AThermostatic Switch
1971MercuryMontego4.1LL6N/AThermostatic Switch
1971MercuryMontego7.0LV8N/AThermostatic Switch
1971MercuryMontegoN/AThermostatic Switch
1970MercuryCougarBase5.8LV8N/AThermostatic Switch
1970MercuryCougarXR-75.8LV8N/AThermostatic Switch
1970MercuryCougarXR-76.4LV8N/AThermostatic Switch
1970MercuryCougarXR-77.0LV8N/AThermostatic Switch
1970MercuryCougarBoss 4297.0LV8N/AThermostatic Switch
1970MercuryCougarCobra Jet7.0LV8N/AThermostatic Switch
1970MercuryCougarBase6.4LV8N/AThermostatic Switch
1970MercuryCougarBase7.0LV8N/AThermostatic Switch
1970MercuryCougarBoss 3025.0LV8N/AThermostatic Switch
1970MercuryMontegoN/AThermostatic Switch
1969MercuryCougarBase7.0LV8N/AThermostatic Switch
1969MercuryCougarBase5.8LV8N/AThermostatic Switch
1969MercuryCougarXR-75.8LV8N/AThermostatic Switch
1969MercuryCougarXR-76.4LV8N/AThermostatic Switch
1969MercuryCougarBoss 4297.0LV8N/AThermostatic Switch
1969MercuryCougarBoss 302N/AThermostatic Switch
1969MercuryCougarCobra Jet7.0LV8N/AThermostatic Switch
1969MercuryCougarBase6.4LV8N/AThermostatic Switch
1969MercuryCougarXR-77.0LV8N/AThermostatic Switch
1969MercuryCougarBoss 3025.0LV8N/AThermostatic Switch
1969MercuryMontegoN/AThermostatic Switch
1968MercuryCougar4.7LV8N/AThermostatic Switch
1968MercuryCougar7.0LV8N/AThermostatic Switch
1968MercuryCougar5.0LV8N/AThermostatic Switch
1968MercuryMontego6.4LV8N/AThermostatic Switch
1968MercuryMontego3.3LL6N/AThermostatic Switch
1968MercuryMontego4.7LV8N/AThermostatic Switch
1968MercuryMontego7.0LV8N/AThermostatic Switch
1967MercuryCougarBaseN/AThermostatic Switch
1966FordMustangN/AThermostatic Switch
1965FordMustangBase4.7LV8N/AThermostatic Switch
1965FordMustangShelby GT-3504.7LV8N/AThermostatic 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:

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