Four Seasons 39039 A/C Expansion Valve

Four Seasons 39039 A/C Expansion Valve

The Four Seasons 39039 expansion valve is a TXV-style A/C flow restrictor built for R134A systems. It regulates refrigerant flow into the evaporator to help maintain proper superheat control in the HVAC circuit.

Fits 1993-1994 Lexus LS400, N/A. This Four Seasons Expansion Valve line is focused on direct-fit HVAC service parts for refrigerant control and system performance restoration.

Key Features

• Part type: A/C expansion valve
• TXV design for refrigerant metering
• Refrigerant type: R134A
• Super heat setting: 5.0
• Brass construction color finish
• Four Seasons part number 39039

Product Details

Four Seasons 39039 is an A/C expansion valve for the Lexus LS400 that meters refrigerant entering the evaporator based on system demand. As a TXV, it helps maintain the correct pressure drop and superheat balance needed for stable cabin cooling in R134A-equipped HVAC systems. If you are servicing a 1993-1994 Lexus LS400 A/C system, this valve provides the correct application-specific replacement path.

This part cross-references Global Parts Distributors LLC 3411895 for the same application.

Common Issues It Can Help Solve

• Weak or inconsistent cabin cooling
• Improper refrigerant metering at the evaporator
• Erratic A/C outlet temperatures
• System performance loss caused by a worn expansion valve
• HVAC flow control problems in R134A systems

Installation Notes and Tips

Verify refrigerant type, valve orientation, and system cleanliness before installation. Replace the expansion valve during A/C service when contamination, restriction, or metering issues are present, and confirm the system is evacuated and charged to the vehicle specification after repair. For fitment, this part is listed for 1993-1994 Lexus LS400, N/A.

Quality Assurance

Four Seasons is a recognized HVAC parts brand with a broad catalog of A/C service components. Part number 39039 is cataloged for direct application matching on the Lexus LS400 platform.