Four Seasons 39280 A/C Expansion Valve - Front

Overview of Four Seasons Expansion Valve 39280

The Four Seasons Expansion Valve 39280 is designed specifically for Lexus LS460 and LS600h models. This A/C expansion valve regulates refrigerant flow within the air conditioning system, ensuring optimal cooling performance for vehicles using R134a refrigerant.

• Constructed from durable aluminum material with an aluminum finish
• Block type design with two mounting holes for secure installation
• Compatible with R134a refrigerant systems
• Female suction and liquid inlet/outlet fittings with captured o-ring seals
• Meets or exceeds OEM specifications for reliable performance

Four Seasons Expansion Valve Product Line

The Expansion Valve product line by Four Seasons focuses on precise control of refrigerant flow in automotive A/C systems. This line includes block type valves engineered for compatibility with specific vehicle makes and models, such as the Lexus LS460 and LS600h. The 39280 part number represents a component designed to maintain system efficiency and durability through quality materials and exact fitment.

Detailed Product Description

The Four Seasons Expansion Valve 39280 features a block type design made from aluminum, providing corrosion resistance and lightweight durability. It is engineered for use with R134a refrigerant, common in many modern vehicles. The valve includes two mounting holes for secure attachment and female fittings on both suction and liquid inlet/outlet ports. These fittings use captured o-ring seals (green o-rings, part numbers 24611 and 24661) to prevent leaks and maintain system integrity. The suction inlet and outlet fittings have a No. 12 thread diameter, while the liquid inlet and outlet fittings have No. 6 and No. 10 thread diameters respectively, all designed without threading to accommodate o-ring seals.

Common Applications and Issues Addressed

• Regulates refrigerant flow to prevent A/C system freezing or overheating
• Maintains consistent cabin cooling performance in Lexus LS460 and LS600h
• Replaces faulty or worn expansion valves causing poor air conditioning output
• Helps resolve refrigerant leaks due to damaged fittings or seals
• Supports efficient operation of R134a refrigerant systems

Installation Notes and Tips

• Ensure compatibility with Lexus LS460 and LS600h models before installation
• Inspect and replace o-rings as needed to prevent leaks
• Use proper torque on mounting holes to avoid damage to the aluminum valve body
• Confirm system is evacuated and charged correctly after installation
• Follow manufacturer guidelines for refrigerant handling and safety

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39280 meets or exceeds OEM standards, ensuring reliable fit and function for Lexus LS460 and LS600h vehicles. Manufactured with high-quality aluminum and precision fittings, this valve is designed for durability and leak-free operation. Warranty details should be confirmed with the product documentation or supplier.