Four Seasons 37322 HVAC Pressure Switch

Four Seasons 37322 HVAC Pressure Switch

The Four Seasons Pressure Switch 37322 is a system-mounted HVAC pressure switch built for accurate refrigerant pressure monitoring in automotive air conditioning systems. With a female connector, female 10mm x 1.25 fitting, and 2-terminal binary design, it supports reliable compressor control in applications that require open/closed pressure response.

Four Seasons Pressure Switch line components are built for direct-fit HVAC service and replacement work. This pressure switch meets or exceeds OEM requirements and uses a steel body with a white finish for a service-ready replacement on vehicles such as Honda Civic and Toyota Corolla applications where the correct pressure switch specification is required.

Key Features

• Four Seasons part number 37322
• HVAC pressure switch for system-mounted applications
• Binary open/closed operation
• Female connector and female fitting design
• 10mm x 1.25 thread size
• 2-terminal electrical connection
• Operate pressure: 29 psi on, 28 psi off
• Steel construction with white finish
• Meets or exceeds OEM requirements

Detailed Description

This Four Seasons HVAC Pressure Switch 37322 is designed to monitor system pressure and signal compressor operation based on the specified low-pressure thresholds. The binary switch configuration helps maintain proper A/C system control by opening and closing at the listed pressure points, making it a practical replacement for service work on vehicles such as Honda Civic and Toyota Corolla when the original pressure switch specification matches. If you are replacing a failed HVAC pressure switch, this part number 37322 provides the correct thread size, connector style, and system-mounted layout for a direct service match.

This part cross-references Standard Ignition S20461 and UAC SW11204C for the same application.

What It Helps Fix

• A/C compressor cycling caused by a faulty pressure switch
• HVAC system shutdown from incorrect pressure signal input
• Intermittent compressor engagement in pressure-controlled systems
• Loss of refrigerant pressure monitoring at the switch location
• Replacement needs for a worn or electrically failed HVAC pressure switch

Installation Notes and Tips

Verify the connector style, 10mm x 1.25 fitting thread, terminal count, and pressure settings before installation. Confirm the vehicle uses a system-mounted binary pressure switch with the same operating thresholds. Inspect the connector and sealing surfaces during service, and compare the original part number to Four Seasons 37322 before final assembly.

Quality Assurance

This Four Seasons pressure switch meets or exceeds OEM requirements for replacement use. It is built as a steel HVAC switch assembly for service applications where correct pressure response and electrical connection are required.