Four Seasons 39039 A/C Expansion Valve

Reliable A/C Expansion Valve for Lexus LS400

The Four Seasons Expansion Valve 39039 is designed specifically for the Lexus LS400 to regulate refrigerant flow efficiently. Crafted from durable brass and engineered for R134a refrigerant systems, this TXV type valve ensures optimal air conditioning performance.

• Constructed from brass for durability and corrosion resistance
• Compatible with R134a refrigerant systems
• TXV (Thermostatic Expansion Valve) type for precise refrigerant control
• Super heat rating of 5.0 for accurate temperature regulation
• Part number 39039 ensures exact fit for Lexus LS400 models

About the Four Seasons Expansion Valve Product Line

The Expansion Valve line by Four Seasons focuses on delivering precise refrigerant flow control components for automotive HVAC systems. This product line includes TXV valves like part number 39039, designed to maintain proper super heat levels and improve system efficiency in vehicles such as the Lexus LS400.

Product Details and Specifications

This A/C expansion valve is made from brass, providing long-lasting resistance to wear and corrosion within the vehicle’s air conditioning system. It is engineered for use with R134a refrigerant, the standard for many modern automotive A/C systems. The TXV type valve regulates refrigerant flow based on temperature and pressure, maintaining a super heat value of 5.0 to optimize cooling performance and prevent compressor damage. The Four Seasons 39039 valve is a direct replacement part tailored for the Lexus LS400, ensuring compatibility and reliable operation.

Common Issues Addressed by This Expansion Valve

• Inconsistent or insufficient cooling in Lexus LS400 A/C systems
• Refrigerant flow irregularities causing compressor strain
• Overheating or freezing of evaporator coils due to improper super heat
• Reduced HVAC efficiency from worn or faulty expansion valves
• Leaks or corrosion in older brass expansion valves

Installation Notes and Tips

When installing the Four Seasons Expansion Valve 39039 on a Lexus LS400, ensure the system is properly evacuated and free of contaminants. Handle the brass valve carefully to avoid damage to the sensing bulb and connections. Verify that the refrigerant type is R134a before installation. Proper torque specifications should be followed to prevent leaks and ensure a secure fit.

Quality Assurance and Warranty

Four Seasons manufactures the 39039 expansion valve to meet OEM standards for fit and function. The brass construction and TXV design contribute to reliable, long-term performance in the Lexus LS400 HVAC system. Warranty details are provided by Four Seasons and typically cover defects in material and workmanship under normal use.