Four Seasons 39480 A/C Expansion Valve

Overview of Four Seasons Expansion Valve 39480

The Four Seasons Expansion Valve 39480 is engineered for precise control of refrigerant flow in automotive air conditioning systems. Designed specifically for Buick and Chevrolet models including the Encore, Encore GX, Sonic, and Trax, this aluminum block-type valve ensures efficient A/C performance with R134a refrigerant.

• Constructed from durable aluminum material for corrosion resistance
• Compatible with R134a refrigerant systems
• Block type design with two mounting holes for secure installation
• Female suction and liquid inlet/outlet fittings with sealing washer style
• Meets or exceeds OEM specifications for reliable fit and function

Four Seasons Expansion Valve Product Line Details

The Expansion Valve product line by Four Seasons focuses on delivering precise refrigerant metering components that regulate the flow of refrigerant into the evaporator. This ensures optimal cooling efficiency and system protection. The 39480 valve is part of this line, offering a block-type design that integrates seamlessly with specific Buick and Chevrolet A/C systems, maintaining OEM standards for performance and durability.

Technical Specifications and Features

This A/C expansion valve features a block-type construction made from aluminum, providing strength and resistance to corrosion. It is designed for use with R134a refrigerant and includes two mounting holes for secure attachment. Both suction and liquid inlet/outlet fittings are female with sealing washer types, ensuring leak-free connections. The suction inlet and outlet fittings have thread diameters of No. 10 and No. 12 respectively, while the liquid inlet and outlet fittings measure No. 6 and No. 8. The valve includes slim line sealing washers (O-Rings 24401 and 24402) to maintain system integrity.

Applications and Common Issues Addressed

• Restores proper refrigerant flow in Buick Encore and Encore GX A/C systems
• Replaces faulty expansion valves causing inconsistent cabin cooling in Chevrolet Sonic
• Solves issues related to A/C system pressure imbalances in Chevrolet Trax
• Prevents evaporator freezing and compressor damage due to improper refrigerant metering
• Addresses leaks and poor sealing in the expansion valve connections

Installation Notes and Tips

Ensure the vehicle’s A/C system is fully evacuated and free of contaminants before installing the Four Seasons Expansion Valve 39480. Use the two mounting holes to securely fasten the valve in place. Verify that all female fittings with sealing washers are properly seated to prevent leaks. It is recommended to replace O-rings during installation to maintain a tight seal. Confirm compatibility with Buick Encore, Encore GX, Chevrolet Sonic, and Trax models prior to installation.

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39480 meets or exceeds OEM specifications, ensuring reliable performance and durability. Manufactured with high-quality aluminum and precision fittings, this valve is designed to maintain system integrity under normal operating conditions. Warranty coverage details should be confirmed with the product documentation or manufacturer.