Four Seasons 39179 A/C Expansion Valve O-Ring Type

The Four Seasons 39179 is an O-ring type expansion valve designed for automotive air conditioning systems. This critical A/C component regulates refrigerant flow between the high-pressure and low-pressure sides of the system, ensuring optimal cooling performance and efficiency.

Key Features:

• O-ring style expansion valve for reliable sealing and leak prevention
• Precision-engineered to meet OE specifications for proper refrigerant metering
• Durable construction designed to withstand temperature extremes and system pressures
• Direct replacement component for restoring A/C system performance
• Manufactured by Four Seasons, a trusted name in automotive climate control parts

The expansion valve plays a vital role in your vehicle's air conditioning system by controlling the amount of refrigerant released into the evaporator. When this component fails, symptoms may include poor cooling, intermittent A/C operation, or frost buildup on A/C lines. This Four Seasons replacement valve helps restore proper system function and cabin comfort.