Four Seasons 39290 A/C Expansion Valve

Reliable A/C Expansion Valve for Mitsubishi Vehicles

The Four Seasons Expansion Valve 39290 is engineered to regulate refrigerant flow in your Mitsubishi ASX, Lancer, Outlander, and Outlander Sport models. Designed with durable aluminum construction, this block-type valve ensures consistent air conditioning performance with R134a refrigerant systems.

• Constructed from corrosion-resistant aluminum for durability
• Compatible with R134a refrigerant type
• Block type design with 2 mounting holes for secure installation
• Female suction and liquid inlet/outlet fittings with No. 10 and No. 6/No. 8 thread diameters
• Includes green o-rings for reliable sealing
• Meets or exceeds OEM specifications for Mitsubishi vehicles

Four Seasons Expansion Valve Product Line Overview

The Expansion Valve product line by Four Seasons focuses on precise refrigerant flow control within automotive HVAC systems. This line is designed to maintain optimal air conditioning efficiency and system reliability by using high-quality materials and exact fitment specifications. The 39290 model exemplifies this approach, providing a direct replacement part that supports proper cooling performance in select Mitsubishi models.

Detailed Product Description and Specifications

The Four Seasons 39290 A/C Expansion Valve is a block-type valve made from aluminum, offering resistance to corrosion and heat. It is specifically designed for use with R134a refrigerant, common in modern automotive air conditioning systems. The valve features two mounting holes for secure attachment and female fittings on both suction and liquid inlet/outlet ports. The suction inlet and outlet fittings have a No. 10 thread diameter, while the liquid inlet and outlet fittings have No. 6 and No. 8 thread diameters respectively, all with non-threaded insert o-ring styles to ensure leak-free connections. The included green o-rings (part numbers 24608 and 24610) provide additional sealing reliability. This expansion valve is compatible with Mitsubishi ASX, Lancer, Outlander, and Outlander Sport models, meeting or exceeding OEM standards for fit and function.

Common Applications and Issues Addressed

• Regulates refrigerant flow to maintain proper A/C system pressure
• Prevents compressor damage caused by improper refrigerant metering
• Eliminates inconsistent cabin cooling or fluctuating temperatures
• Resolves issues related to refrigerant leaks at the expansion valve
• Restores efficient air conditioning performance in Mitsubishi ASX, Lancer, Outlander, and Outlander Sport

Installation Notes and Tips

Ensure the A/C system is fully evacuated and free of contaminants before installing the expansion valve. Use proper tools to avoid damaging the aluminum fittings and carefully install the green o-rings to prevent leaks. Verify that the valve is securely mounted using the two mounting holes and confirm all connections are tight but not over-torqued. It is recommended to replace the expansion valve as part of a comprehensive A/C system service to maintain optimal performance.

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39290 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. This part undergoes rigorous quality control to maintain consistent standards. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in material and workmanship.