Four Seasons 20058 A/C Compressor Cut-Out Switch

Four Seasons Pressure Switch 20058 Overview

The Four Seasons Pressure Switch 20058 is a compressor-mounted A/C compressor cut-off switch for 12-volt HVAC systems. It uses a 2-terminal pin connection, a female connector, and a no-threads/clip-in fitting style for direct pressure-switch service on supported GM applications.

Built with plastic and metal construction and marked as meeting or exceeding OEM requirements, this high cut-out pressure switch is specified for high-pressure compressor-mounted use. It is a direct-fit option for many Cadillac, Chevrolet, and GMC vehicles, including Cadillac CTS, Chevrolet Silverado 1500, and GMC Sierra 1500 applications.

Key Features

• Four Seasons Pressure Switch line component for HVAC service
• Part number 20058 for compressor-mounted A/C cut-off applications
• High cut-out style with 475 psi off pressure and 260 psi high-on pressure
• 2 terminals with pin-type electrical connection
• Female connector and female fitting design
• No-threads/clip-in mounting style for compressor-mounted installation
• 12-volt electrical specification
• Weather Pack sealed connection
• Plastic and metal construction
• Meets or exceeds OEM requirements

Product Details

Four Seasons Pressure Switch 20058 is designed for pressure-based A/C compressor control on supported GM platforms. The switch monitors refrigerant pressure at the compressor and opens or closes the circuit at the specified thresholds to help maintain proper HVAC operation. This part cross-references AP Exhaust 20058 and Global Parts Distributors LLC 1711517 for the same application.

Compatible vehicle coverage includes long-tail searches such as 2000-2013 Chevrolet Silverado 1500 A/C compressor cut-off switch, 2000-2013 GMC Sierra 1500 pressure switch, and 2003-2013 Cadillac CTS compressor-mounted HVAC pressure switch. It also appears in fitment for Chevrolet Avalanche, Tahoe, Suburban, Express van, Colorado, Equinox, and related Cadillac and GMC models.

Common Problems This Part Addresses

• A/C compressor cycling incorrectly due to pressure switch failure
• Compressor shutdown caused by a faulty high-pressure cut-off signal
• Intermittent HVAC operation from worn electrical terminals or connector issues
• Pressure-related A/C system protection faults on compressor-mounted switches
• Loss of cooling performance tied to an inoperative pressure switch

Installation Notes and Tips

Verify the connector style, terminal count, mounting location, and pressure calibration before installation. This switch is compressor mounted and uses a clip-in, no-thread fitting, so the replacement must match the original port and electrical configuration. Confirm the vehicle’s HVAC system requirements against the listed fitment before service.

Fits 2013 Cadillac ATS, N/A; Fits 2003-2013 Cadillac CTS, N/A; Fits 2002-2013 Cadillac Escalade, N/A; Fits 2007-2013 Chevrolet Avalanche, N/A; Fits 2000-2013 Chevrolet Silverado 1500, N/A; Fits 2000-2013 GMC Sierra 1500, N/A.

Quality Assurance

Four Seasons identifies this pressure switch as meeting or exceeding OEM specifications, supporting OE-style replacement quality for compatible Cadillac, Chevrolet, and GMC HVAC systems. Part number 20058 is engineered for direct pressure-switch service in supported compressor-mounted applications.