Four Seasons 39540 Block Type A/C Expansion Valve - Kit

The Four Seasons 39540 is a block-type expansion valve kit designed for automotive air conditioning systems. This precision-engineered component regulates refrigerant flow to the evaporator while reducing pressure to lower refrigerant temperature, ensuring optimal cabin comfort and A/C system performance.

Key Features:

• Block-type design for reliable refrigerant flow control
• Kit configuration without solenoid valve
• Specifically calibrated for proper tonnage, superheat, and maximum operating pressure (MOP)
• Engineered to meet or exceed OE fit, form, and function requirements
• High-quality components for long-lasting performance
• Includes application-specific O-rings, gaskets, and seals for ease of installation

Four Seasons is the largest aftermarket climate control parts supplier in the industry, with over 45 years of experience in automotive air conditioning. Each expansion valve undergoes rigorous testing and validation to ensure premium quality and proper system operation. Using the correct expansion valve is critical, as A/C performance issues can often be traced back to misapplied or low-quality valves.