Standard Motor Products 91-6945 A/C Clutch Cycling Switch

The Standard Motor Products 91-6945 A/C Clutch Cycling Switch is a critical component for maintaining proper air conditioning system operation. This pressure-sensing switch monitors refrigerant pressure in the A/C system and controls the engagement and disengagement of the compressor clutch to prevent evaporator freeze-up and compressor damage.

Key Features:

• Monitors low-side A/C system pressure to ensure optimal performance
• Prevents compressor operation when refrigerant pressure is too low, protecting against damage
• Cycles the compressor clutch on and off to maintain proper cabin temperature
• Direct-fit replacement designed to OE specifications for reliable installation
• Typically mounts to the accumulator or suction line for accurate pressure sensing

When refrigerant pressure drops below a safe threshold, this switch deactivates the compressor clutch to prevent operation without sufficient lubrication. Once proper pressure is restored, the switch allows normal cycling to resume. Standard Motor Products manufactures this switch to meet or exceed OE quality standards, ensuring dependable climate control system performance.