Universal Air SW3122C A/C Thermostat

Universal Air SW3122C Thermostatic Switch

The Universal Air SW3122C is an A/C thermostat for HVAC systems that use a thermostatic switch to control compressor cycling. It supports direct-fit applications across select Cadillac, Buick, Oldsmobile, and Pontiac models from 1980-1990.

Key Features

• Thermostatic switch for A/C clutch and compressor control
• Fits HVAC applications in classic GM vehicles
• Direct fitment coverage for select Cadillac, Buick, Oldsmobile, and Pontiac models
• Part number SW3122C for ordering and catalog lookup
• Universal Air Thermostatic Switch product line

Fitment Details

• Fits 1987-1990 Cadillac Brougham, N/A
• Fits 1985-1990 Cadillac Commercial Chassis, N/A
• Fits 1980-1990 Cadillac DeVille, N/A
• Fits 1980-1990 Cadillac Fleetwood, N/A
• Fits 1980-1985 Cadillac Eldorado, N/A
• Fits 1980-1985 Cadillac Seville, N/A
• Fits 1980-1981 Buick LeSabre, N/A
• Fits 1980 Oldsmobile Cutlass, N/A
• Fits 1980 Oldsmobile Cutlass Calais, N/A
• Fits 1980 Oldsmobile Cutlass Cruiser, N/A
• Fits 1980 Oldsmobile Cutlass Salon, N/A
• Fits 1980 Oldsmobile Cutlass Supreme, N/A
• Fits 1980 Pontiac Bonneville, N/A
• Fits 1980 Pontiac Catalina, N/A
• Fits 1980 Pontiac Firebird, N/A
• Fits 1980 Pontiac Grand Prix, N/A

What It Is Used For

• Restoring A/C compressor cycling control on vehicles with a thermostatic switch
• Replacing a failed A/C thermostat that causes inconsistent cooling
• Addressing compressor engagement issues tied to HVAC temperature control
• Repairing climate control faults in classic Cadillac, Buick, Oldsmobile, and Pontiac models

Installation Notes

Verify the vehicle year, make, and model against the fitment list before ordering. Confirm the existing HVAC control style and connector configuration on the vehicle, and compare the original part number SW3122C during diagnosis and replacement.

Quality Assurance

Universal Air identifies this component as part of its Thermostatic Switch line. Use the confirmed fitment data to match the correct application for Cadillac DeVille, Cadillac Fleetwood, and Pontiac Firebird A/C thermostat service.