Four Seasons 39621 A/C Expansion Valve

The Four Seasons 39621 expansion valve is a precision-engineered component designed to regulate refrigerant flow in automotive air conditioning systems. This valve controls the amount of refrigerant entering the evaporator, ensuring optimal cooling performance and system efficiency.

Key Features:

• Manufactured to meet or exceed OEM specifications for reliable performance
• Precision-calibrated metering device controls refrigerant flow and pressure
• Quality-tested construction ensures proper system operation and longevity
• Direct replacement component for specific vehicle applications
• Designed and validated by Four Seasons, the largest aftermarket mobile climate control parts supplier

As a critical component in the A/C system, the expansion valve converts high-pressure liquid refrigerant into a low-pressure mist before it enters the evaporator core. This precise metering action is essential for maintaining proper cooling capacity and preventing compressor damage. Four Seasons expansion valves are manufactured using quality materials and undergo rigorous testing to ensure dependable performance in demanding automotive environments.