Four Seasons 39058 A/C Expansion Valve

Overview of Four Seasons Expansion Valve 39058

The Four Seasons Expansion Valve 39058 is engineered for precise control of refrigerant flow in automotive air conditioning systems. Designed specifically for Nissan Pathfinder and Infiniti QX4 models, this aluminum block-type valve ensures efficient cooling performance with R134a refrigerant compatibility.

• Constructed from durable aluminum material
• Compatible with R134a refrigerant systems
• Block type design with two mounting holes for secure installation
• Female suction and liquid inlet/outlet fittings with No. 10 and No. 8 thread diameters
• Includes green o-rings for proper sealing and leak prevention
• Meets or exceeds OEM specifications for reliable fit and function

Detailed Product Features and Specifications

This A/C expansion valve from Four Seasons features a block-type design made from aluminum, providing corrosion resistance and long-lasting durability. It is designed to work with R134a refrigerant, the standard for many modern automotive air conditioning systems. The valve includes two mounting holes for secure attachment and features female suction inlet and outlet fittings with No. 10 thread diameters, as well as female liquid inlet and outlet fittings with No. 8 thread diameters. Both liquid inlet and outlet connections use insert o-ring types, ensuring a tight seal with included green o-rings (part numbers 24608 and 24610).

About the Four Seasons Expansion Valve Product Line

The Four Seasons Expansion Valve product line focuses on delivering precise refrigerant flow control components designed to meet or exceed original equipment manufacturer standards. This line emphasizes compatibility and durability, making it suitable for specific vehicle applications such as the Nissan Pathfinder and Infiniti QX4. The 39058 part number is a representative example of this line’s commitment to quality and fitment accuracy.

Common Applications and Problem Resolution

• Restores proper refrigerant flow in Nissan Pathfinder and Infiniti QX4 A/C systems
• Resolves inconsistent cabin cooling or fluctuating air temperatures
• Addresses issues related to A/C compressor cycling or system pressure imbalances
• Prevents refrigerant leaks with secure o-ring seals
• Replaces faulty or worn expansion valves to maintain system efficiency

Installation Notes and Tips

When installing the Four Seasons Expansion Valve 39058, ensure the vehicle’s A/C system is properly evacuated and free of contaminants. Use the two mounting holes to securely fasten the valve in place. Verify that all female fittings are clean and properly aligned before connecting. Replace o-rings as needed to prevent leaks, and confirm compatibility with R134a refrigerant. Professional installation is recommended to maintain system integrity and performance.

Quality Assurance and Warranty

This expansion valve meets or exceeds OEM specifications, ensuring reliable performance and fitment for Nissan Pathfinder and Infiniti QX4 models. Four Seasons provides quality assurance backed by industry standards, although specific warranty details should be confirmed with the product documentation or supplier.