GM GENUINE PARTS A/C Clutch Cycling Switch OEM Replacement — 15-5720 (15035084), Protects Compressor & Prevents Evaporator Freeze

The GM Genuine Parts 15-5720 (15035084) A/C clutch cycling switch monitors evaporator conditions and cycles the compressor clutch to protect your vehicle’s air conditioning system.

This GM Genuine Parts cycling switch is an OEM-quality replacement designed to match the original equipment used on many General Motors vehicles. Engineered and tested to GM standards, it responds to evaporator temperature and pressure changes by opening or closing the compressor clutch field circuit. When conditions indicate overly low pressure or temperature, the switch interrupts the clutch to prevent compressor damage and maintain safe system operation.

How does this switch keep my A/C system safe?

The switch continuously senses evaporator temperature and refrigerant line pressure, using those inputs to control the compressor clutch. By switching the clutch off when readings fall below safe thresholds, it reduces the risk of compressor wear and potential freezing of the evaporator coil. This preserves system reliability without changing other components.

• Stops compressor under low-pressure or low-temperature conditions
• Prevents evaporator freeze-up and compressor strain
• Works as a proactive sensor-based safety device

Will this part fit my GM vehicle and perform like the original?

Yes — the GM Genuine Parts 15-5720 is produced to GM OE specifications for fit, form, and function. It’s the same design validated by General Motors and commonly supplied as the factory-installed component. That means installation is straightforward and compatibility with the vehicle’s existing harness and mounting locations is maintained.

• Manufactured to GM OE standards for reliable fit
• Direct replacement for applicable factory components
• Validated by General Motors for specified applications

What are the practical benefits of choosing this GM Genuine Parts switch?

Choosing an OEM-validated switch ensures predictable performance and long-term reliability. The component restores correct A/C clutch cycling behavior, helping the vehicle achieve consistent cabin cooling and protecting the compressor from harmful operating conditions. It also aligns with service guidelines recommended by GM for replacement.

• Restores proper compressor clutch engagement and disengagement
• Maintains factory-level durability and reliability
• Backed by General Motors engineering and testing protocols

How is this installed and what should I expect during replacement?

Installation is typically performed in-line with the vehicle’s refrigerant circuit and electrical connector for the A/C clutch. A trained technician will depressurize the system, replace the switch, and then recover and recharge refrigerant per service procedures. Correct installation returns normal clutch cycling and helps avoid unnecessary compressor damage.

• Requires proper A/C service tools and refrigerant handling
• Compatible with original mounting points and connectors
• Recommended for installation by qualified technicians

Who is this for: The GM Genuine Parts 15-5720 A/C clutch cycling switch is intended for owners and technicians servicing GM vehicles who want an OEM-quality replacement to restore correct compressor clutch behavior. It’s suited for anyone repairing intermittent A/C compressor engagement, preventing evaporator freeze, or replacing a factory switch with a GM-validated component to preserve system performance and longevity.