Universal Air SW11176C HVAC Pressure Switch

Universal Air HPCO Switch for HVAC Pressure Control

The Universal Air HPCO Switch, part number SW11176C, is an HVAC pressure switch used in air conditioning systems that require high-pressure cutout control. It is a direct-fit service part for select Chevrolet, GMC, Buick, Oldsmobile, and Pontiac applications, including Chevrolet Cavalier, Corsica, Celebrity, and Firebird models.

Key Features

• HVAC pressure switch for high-pressure cutout control
• Universal Air HPCO Switch product line
• Part number SW11176C for accurate ordering and service matching
• Fits select GM passenger cars and commercial chassis applications
• Supports service work on aging A/C systems with confirmed vehicle fitment

Detailed Description

Universal Air SW11176C is an HVAC pressure switch built for vehicles that use an HPCO switch in the air conditioning circuit. This part is listed for 1994-1995 Chevrolet P30 and GMC P3500, plus select 1987-1992 Buick Century, 1987-1992 Oldsmobile Cutlass Ciera, 1990-1991 Chevrolet Cavalier with system mount switch, 1987-1991 Chevrolet Corsica, 1987-1991 Pontiac 6000, 1987-1990 Chevrolet Celebrity, 1987-1989 Chevrolet Cavalier, 1987-1988 Oldsmobile Firenza, and 1987 Pontiac Firebird. If you are sourcing a replacement HVAC pressure switch for a Chevrolet Cavalier or Chevrolet Corsica, SW11176C provides a fitment-specific service option.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• A/C compressor cycling caused by a failed high-pressure cutout switch
• Intermittent HVAC operation tied to pressure switch faults
• System shutdown from incorrect pressure signal input
• Diagnostic trouble related to pressure switch circuit issues
• Loss of A/C protection logic in the HVAC control circuit

Installation Notes and Tips

Verify the original switch style and connector match before installation. Confirm the vehicle application against the listed fitment, especially on 1990-1991 Chevrolet Cavalier models that require a system mount switch. After installation, inspect the HVAC system for proper pressure response and normal compressor operation.

Quality Assurance

Universal Air HVAC service parts are cataloged for specific vehicle applications to support accurate replacement selection. Part number SW11176C should be matched to the vehicle’s original HPCO switch specification before service.