Homeβ€Ί HVAC > A/C Clutch and Compressorβ€Ί Universal Air SW3122C A/C Thermostat
Part #: 881B1

Universal Air SW3122C A/C Thermostat

Thermostatic Switch
111 vehicles fit this part
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Thermostatic Switch
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Reliable A/C Thermostat for Select GM Vehicles

The Universal Air Thermostatic Switch SW3122C is designed to maintain optimal air conditioning performance in various Buick, Cadillac, Oldsmobile, and Pontiac models. This A/C thermostat ensures precise temperature control for your vehicle's HVAC system.

  • Compatible with Buick Bonneville, LeSabre, and Park Avenue models
  • Fits Cadillac DeVille, Eldorado, Fleetwood, and Seville
  • Suitable for Oldsmobile Cutlass, Cutlass Supreme, and Cutlass Calais
  • Works with Pontiac Firebird, Grand Prix, and Catalina
  • Part number SW3122C for accurate identification and fitment

About the Universal Air Thermostatic Switch Product Line

The Thermostatic Switch line by Universal Air focuses on precise temperature regulation components for automotive HVAC systems. This product line is engineered to provide reliable switching functions that help maintain consistent air conditioning clutch engagement and compressor operation, contributing to efficient climate control in compatible vehicles.

Product Details and Compatibility

The SW3122C A/C Thermostat is specifically designed for use in select General Motors vehicles, including Buick, Cadillac, Oldsmobile, and Pontiac models such as the Bonneville, Brougham, Catalina, Cutlass series, DeVille, Eldorado, Firebird, Fleetwood, Grand Prix, LeSabre, and Seville. This thermostatic switch plays a critical role in regulating the A/C clutch and compressor by activating or deactivating the system based on temperature thresholds, ensuring the HVAC system operates within optimal parameters.

Common Applications and Issues Addressed

  • Prevents A/C compressor from running continuously, avoiding premature wear
  • Helps maintain consistent cabin temperature by regulating clutch engagement
  • Resolves intermittent A/C clutch cycling problems
  • Addresses HVAC system overheating or failure to engage issues
  • Improves overall air conditioning system reliability in compatible GM vehicles

Installation Notes and Tips

  • Ensure vehicle compatibility by verifying make and model before installation
  • Disconnect battery before replacing the thermostatic switch to prevent electrical shorts
  • Locate the existing A/C thermostat near the compressor clutch or within the HVAC system
  • Handle the switch carefully to avoid damage to terminals and connectors
  • Test the system after installation to confirm proper operation of the A/C clutch and compressor

Quality Assurance and Warranty

The Universal Air Thermostatic Switch SW3122C is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Universal Air products typically undergo quality control testing to ensure reliable operation in automotive HVAC applications. For warranty information, refer to the product packaging or contact the manufacturer directly.

BrandPhillips
Part Number881B1
PositionThermostatic Switch
Amperage Rating2.11
Bulb Base TypePGJ13
Bulb ColorClear
Bulb FinishClear
Bulb MaterialGlass
Bulb TechnologyHalogen
Bulb TypeStandard Fog Lamp
DOT ApprovedYes
Diameter0.35
Filament Quantity1
Filament TypeC-6
HalogenYes
Length2.75
Street LegalYes
Terminal Quantity2
Terminal TypeBlade Pin
Voltage12.8
Wattage27
Wiring Harness IncludedNo

This part fits 111 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
1990CadillacBrougham5.7LV8N/AThermostatic Switch
1990CadillacCommercial ChassisN/AThermostatic Switch
1990CadillacDeVilleN/AThermostatic Switch
1990CadillacFleetwoodN/AThermostatic Switch
1989CadillacBroughamN/AThermostatic Switch
1989CadillacCommercial ChassisN/AThermostatic Switch
1989CadillacDeVilleN/AThermostatic Switch
1989CadillacFleetwoodBaseN/AThermostatic Switch
1989CadillacFleetwoodd'EleganceN/AThermostatic Switch
1989CadillacFleetwood60 SpecialN/AThermostatic Switch
1988CadillacBroughamN/AThermostatic Switch
1988CadillacCommercial ChassisN/AThermostatic Switch
1988CadillacDeVilleN/AThermostatic Switch
1988CadillacFleetwoodd'EleganceN/AThermostatic Switch
1988CadillacFleetwood60 SpecialN/AThermostatic Switch
1988CadillacFleetwoodBaseN/AThermostatic Switch
1987CadillacBroughamN/AThermostatic Switch
1987CadillacCommercial ChassisN/AThermostatic Switch
1987CadillacDeVilleN/AThermostatic Switch
1987CadillacFleetwoodd'EleganceN/AThermostatic Switch
1987CadillacFleetwood75N/AThermostatic Switch
1987CadillacFleetwood60 SpecialN/AThermostatic Switch
1987CadillacFleetwoodBaseN/AThermostatic Switch
1987CadillacFleetwood75 FormalN/AThermostatic Switch
1986CadillacCommercial ChassisN/AThermostatic Switch
1986CadillacDeVilleN/AThermostatic Switch
1986CadillacFleetwood754.1LV8N/AThermostatic Switch
1986CadillacFleetwood75 Formal4.1LV8N/AThermostatic Switch
1986CadillacFleetwoodBase4.1LV8N/AThermostatic Switch
1985CadillacCommercial Chassis4.1LV8GASN/AThermostatic Switch
1985CadillacDeVille4.1LV8GASN/AThermostatic Switch
1985CadillacEldoradoBase4.1LV8GASN/AThermostatic Switch
1985CadillacEldoradoTouring4.1LV8GASN/AThermostatic Switch
1985CadillacEldoradoBiarritz4.1LV8GASN/AThermostatic Switch
1985CadillacEldoradoCabriolet4.1LV8GASN/AThermostatic Switch
1985CadillacFleetwood75 Formal4.1LV8GASN/AThermostatic Switch
1985CadillacFleetwoodBrougham4.1LV8GASN/AThermostatic Switch
1985CadillacFleetwoodd'Elegance4.1LV8GASN/AThermostatic Switch
1985CadillacFleetwood754.1LV8GASN/AThermostatic Switch
1985CadillacFleetwoodBase4.1LV8GASN/AThermostatic Switch
1985CadillacFleetwoodBrougham d'Elegance4.1LV8GASN/AThermostatic Switch
1985CadillacSeville4.1LV8GASN/AThermostatic Switch
1984CadillacDeVille4.1LV8GASN/AThermostatic Switch
1984CadillacEldoradoTouring4.1LV8GASN/AThermostatic Switch
1984CadillacEldoradoBiarritz4.1LV8GASN/AThermostatic Switch
1984CadillacEldoradoBase4.1LV8GASN/AThermostatic Switch
1984CadillacEldoradoCabriolet4.1LV8GASN/AThermostatic Switch
1984CadillacFleetwoodBrougham d'Elegance4.1LV8GASN/AThermostatic Switch
1984CadillacFleetwoodFormal6.0LV8GASN/AThermostatic Switch
1984CadillacFleetwoodBrougham4.1LV8GASN/AThermostatic Switch
1984CadillacFleetwoodBase6.0LV8GASN/AThermostatic Switch
1984CadillacSeville4.1LV8GASN/AThermostatic Switch
1983CadillacDeVille4.1LV8GASN/AThermostatic Switch
1983CadillacEldorado4.1LV8GASN/AThermostatic Switch
1983CadillacFleetwoodBrougham4.1LV8GASN/AThermostatic Switch
1983CadillacFleetwoodFormal6.0LV8GASN/AThermostatic Switch
1983CadillacFleetwoodBase6.0LV8GASN/AThermostatic Switch
1983CadillacFleetwoodBrougham d'Elegance4.1LV8GASN/AThermostatic Switch
1983CadillacSeville4.1LV8GASN/AThermostatic Switch
1982CadillacDeVille4.1LV8GASN/AThermostatic Switch
1982CadillacDeVille4.1LV6GASN/AThermostatic Switch
1982CadillacEldorado4.1LV8GASN/AThermostatic Switch
1982CadillacEldorado4.1LV6GASN/AThermostatic Switch
1982CadillacFleetwoodBase6.0LV8GASN/AThermostatic Switch
1982CadillacFleetwoodBrougham4.1LV8GASN/AThermostatic Switch
1982CadillacFleetwoodBrougham d'Elegance4.1LV8GASN/AThermostatic Switch
1982CadillacFleetwoodBrougham d'Elegance4.1LV6GASN/AThermostatic Switch
1982CadillacFleetwoodFormal6.0LV8GASN/AThermostatic Switch
1982CadillacFleetwoodBrougham4.1LV6GASN/AThermostatic Switch
1982CadillacSeville4.1LV8GASN/AThermostatic Switch
1982CadillacSeville4.1LV6GASN/AThermostatic Switch
1981BuickLeSabreN/AThermostatic Switch
1981CadillacDeVille4.1LV6GASN/AThermostatic Switch
1981CadillacDeVille6.0LV8GASN/AThermostatic Switch
1981CadillacEldorado4.1LV6GASN/AThermostatic Switch
1981CadillacEldorado6.0LV8GASN/AThermostatic Switch
1981CadillacFleetwoodBrougham4.1LV6GASN/AThermostatic Switch
1981CadillacFleetwoodBase6.0LV8GASN/AThermostatic Switch
1981CadillacFleetwoodBrougham d'Elegance4.1LV6GASN/AThermostatic Switch
1981CadillacFleetwoodBrougham d'Elegance6.0LV8GASN/AThermostatic Switch
1981CadillacFleetwoodFormal6.0LV8GASN/AThermostatic Switch
1981CadillacFleetwoodBrougham6.0LV8GASN/AThermostatic Switch
1981CadillacSeville4.1LV6GASN/AThermostatic Switch
1981CadillacSeville6.0LV8GASN/AThermostatic Switch
1980BuickLeSabreN/AThermostatic Switch
1980CadillacDeVille6.0LV8GASN/AThermostatic Switch
1980CadillacDeVille4.1LV6GASN/AThermostatic Switch
1980CadillacEldoradoN/AThermostatic Switch
1980CadillacFleetwoodBrougham6.0LV8GASN/AThermostatic Switch
1980CadillacFleetwoodBrougham4.1LV6GASN/AThermostatic Switch
1980CadillacFleetwoodBrougham d'Elegance4.1LV6GASN/AThermostatic Switch
1980CadillacFleetwoodFormal6.0LV8GASN/AThermostatic Switch
1980CadillacFleetwoodBase6.0LV8GASN/AThermostatic Switch
1980CadillacFleetwoodBrougham d'Elegance6.0LV8GASN/AThermostatic Switch
1980CadillacSevilleN/AThermostatic Switch
1980OldsmobileCutlassN/AThermostatic Switch
1980OldsmobileCutlass CalaisN/AThermostatic Switch
1980OldsmobileCutlass CruiserN/AThermostatic Switch
1980OldsmobileCutlass SalonN/AThermostatic Switch
1980OldsmobileCutlass SupremeN/AThermostatic Switch
1980PontiacBonneville3.8LV6GASN/AThermostatic Switch
1980PontiacBonneville4.3LV8GASN/AThermostatic Switch
1980PontiacBonneville4.9LV8GASN/AThermostatic Switch
1980PontiacCatalina5.7LV8DIESELN/AThermostatic Switch
1980PontiacCatalina5.7LV8GASN/AThermostatic Switch
1980PontiacCatalina3.8LV6GASN/AThermostatic Switch
1980PontiacCatalina4.3LV8GASN/AThermostatic Switch
1980PontiacCatalina4.9LV8GASN/AThermostatic Switch
1980PontiacCatalina4.4LV8GASN/AThermostatic Switch
1980PontiacFirebirdN/AThermostatic Switch
1980PontiacGrand PrixN/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:

78717BP881

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