Four Seasons 36659 A/C Clutch Cycle Switch

Overview of Four Seasons Pressure Switch 36659

The Four Seasons Pressure Switch 36659 is a reliable A/C clutch cycle switch designed for precise pressure control in automotive HVAC systems. Engineered to meet or exceed OEM specifications, this switch is compatible with a range of GM vehicles including Chevrolet Silverado, GMC Sierra, and Cadillac Escalade models.

• Black color with durable plastic and metal construction
• Round connector shape with female fitting and M12 x 1.50 thread size
• Operates at low pressure on/off points of 26 psi and 46 psi respectively
• Two male pin terminals for secure electrical connection
• System mount style for direct installation on the A/C system
• 12-volt operation suitable for standard automotive electrical systems

Four Seasons Pressure Switch Product Line Details

The Pressure Switch line from Four Seasons focuses on delivering precise pressure sensing components for HVAC systems. The 36659 model is part of this line, offering cycling style pressure switches that regulate the A/C clutch operation by monitoring system pressure. This ensures efficient cycling and protection of the compressor in vehicles such as the Chevrolet Blazer and GMC Jimmy.

Detailed Product Description

This A/C clutch cycle switch features a robust design combining plastic and metal materials to withstand automotive operating conditions. The switch mounts directly on the system and includes a round connector with female fitting threads sized M12 x 1.50 for compatibility with factory connections. It has two male pin terminals and operates on 12 volts, making it suitable for a wide range of GM trucks and SUVs. The switch opens at 0 psi and cycles on/off between 26 and 46 psi, providing reliable pressure control to protect the A/C compressor and maintain system efficiency.

Common Applications and Issues Addressed

• Prevents compressor damage due to abnormal pressure levels
• Ensures proper cycling of the A/C clutch in vehicles like the Chevrolet Tahoe and GMC Yukon
• Helps maintain consistent cabin cooling performance
• Replaces faulty or worn pressure switches causing A/C cycling problems
• Addresses intermittent compressor engagement or failure to engage

Installation Notes and Tips

• Verify compatibility with your specific make and model before installation
• Ensure system is depressurized and electrical power is disconnected prior to replacement
• Use proper tools to avoid damaging the M12 x 1.50 threaded fitting
• Check electrical connections for secure fit on the two male pin terminals
• Test system operation after installation to confirm correct cycling pressure

Quality Assurance and Warranty

The Four Seasons Pressure Switch 36659 meets or exceeds OEM standards for fit, form, and function. Manufactured with quality plastic and metal components, it is designed for durability and reliable performance in demanding automotive environments. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in material and workmanship.