Four Seasons 39158 A/C Expansion Valve - Front

Overview of Four Seasons Expansion Valve 39158

The Four Seasons Expansion Valve 39158 is engineered for precise control of refrigerant flow in automotive air conditioning systems. Designed specifically for Land Rover Range Rover and Range Rover Sport models, this aluminum block-type valve ensures efficient cooling performance with R134a refrigerant compatibility.

• Constructed from durable aluminum material with aluminum color finish
• Compatible with R134a refrigerant systems
• Block type design with two mounting holes for secure installation
• Female suction and liquid inlet/outlet fittings with specific thread diameters
• Meets or exceeds OEM specifications for reliable performance

Four Seasons Expansion Valve Product Line Details

The Expansion Valve product line by Four Seasons focuses on delivering precise refrigerant flow restriction components for automotive HVAC systems. This line includes block-type valves like the 39158, designed to maintain optimal air conditioning efficiency and system reliability. Each valve is manufactured to meet OEM standards, ensuring compatibility and durability for specific vehicle applications such as Land Rover Range Rover and Range Rover Sport.

Technical Specifications and Features

The Four Seasons Expansion Valve 39158 features a block-type design made from aluminum, providing corrosion resistance and lightweight durability. It is designed for use with R134a refrigerant and includes two mounting holes for secure attachment. The valve has female suction inlet and outlet fittings with No. 10 and No. 12 thread diameters respectively, both non-threaded. Similarly, the liquid inlet and outlet fittings are female with No. 6 and No. 8 thread diameters, also non-threaded. The liquid inlet and outlet styles are Fio with insert o-ring types, ensuring a tight seal. The valve includes green o-rings ([24606] and [24608]) to maintain system integrity. This part meets or exceeds OEM requirements, making it a reliable replacement for Land Rover Range Rover and Range Rover Sport A/C systems.

Common Applications and Problem Solving

• Restores proper refrigerant flow in Land Rover Range Rover and Range Rover Sport A/C systems
• Resolves issues related to inconsistent cabin cooling or fluctuating temperatures
• Addresses A/C system inefficiencies caused by faulty or worn expansion valves
• Prevents compressor damage by regulating refrigerant pressure accurately
• Eliminates refrigerant leaks due to worn or damaged valve seals

Installation Notes and Tips

When installing the Four Seasons Expansion Valve 39158, ensure the vehicle is compatible with R134a refrigerant systems. Use the two mounting holes to secure the valve firmly in place. Verify that the female suction and liquid fittings align correctly with the system’s tubing, and confirm the insert o-rings are properly seated to prevent leaks. It is recommended to replace the o-rings during installation to maintain a proper seal. Professional installation is advised to ensure system integrity and performance.

Quality Assurance and Warranty

This Four Seasons Expansion Valve 39158 is manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The part includes factory-installed green o-rings for sealing and is constructed from corrosion-resistant aluminum. Four Seasons typically offers a limited warranty on their HVAC components; please refer to the product documentation or manufacturer for specific warranty details.