Four Seasons 20957 A/C Clutch Cycle Switch

Overview of Four Seasons Pressure Switch 20957

The Four Seasons Pressure Switch 20957 is designed for reliable operation in HVAC systems of select Ford, Lincoln, and Mercury vehicles. This A/C clutch cycle switch helps regulate system pressure to maintain optimal air conditioning performance in models like the Crown Victoria, Grand Marquis, GT, and Town Car.

• Pressure switch with system mount design
• Compatible with Ford, Lincoln, Mercury vehicles including Crown Victoria, Grand Marquis, GT, Town Car
• Fitting thread size M12 x 1.50 with female fitting gender
• Operates at low pressure on/off points: 21 psi off, 33 psi on
• Durable plastic and metal construction with weather pack terminals
• 12-volt cycling style switch with two male pin terminals
• Meets or exceeds OEM specifications

Detailed Product Description

The Four Seasons Pressure Switch 20957 is a cycling pressure switch designed to monitor and control the A/C clutch cycle in automotive HVAC systems. Featuring a system mount style and a female fitting with M12 x 1.50 thread size, this switch integrates seamlessly into the air conditioning system. It operates by opening at 0 psi and cycling the compressor clutch on at 33 psi and off at 21 psi, ensuring proper pressure regulation. The switch is constructed from a combination of plastic and metal materials for durability and includes two male pin terminals with weather pack connectors to resist environmental exposure.

This part is compatible with Ford, Lincoln, and Mercury vehicles, specifically models such as the Crown Victoria, Grand Marquis, GT, and Town Car. The 12-volt cycling pressure switch is engineered to meet or exceed OEM standards, providing reliable performance in maintaining HVAC system efficiency.

About the Four Seasons Pressure Switch Product Line

The Pressure Switch line from Four Seasons focuses on precision pressure control components for automotive HVAC systems. These switches are designed to cycle the compressor clutch based on system pressure, protecting the A/C system from damage due to abnormal pressure conditions. The 20957 model exemplifies this line by offering accurate pressure operation points and durable construction suitable for system mount applications in select Ford, Lincoln, and Mercury vehicles.

Common Applications and Issues Addressed

• Prevents compressor damage by regulating clutch cycling
• Maintains proper refrigerant pressure within the HVAC system
• Helps avoid system shutdowns caused by pressure irregularities
• Ensures consistent air conditioning performance in Ford Crown Victoria and Lincoln Town Car
• Replaces faulty or worn pressure switches causing A/C cycling problems

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Mount the switch securely on the system mount location
• Use appropriate tools for M12 x 1.50 thread fittings to avoid damage
• Verify electrical connections with male pin terminals and weather pack connectors
• Test system pressure operation points after installation to confirm proper function

Quality Assurance and Warranty

The Four Seasons Pressure Switch 20957 meets or exceeds OEM specifications, ensuring reliable performance and durability. Constructed from quality plastic and metal materials with weather-resistant terminals, this switch is built to withstand typical automotive operating conditions. While specific warranty details are not provided, Four Seasons products generally adhere to industry standards for quality and reliability.