Four Seasons 39466 A/C Expansion Valve - Rear

Reliable A/C Expansion Valve for Buick, Chevrolet, GMC, and Saturn

The Four Seasons Expansion Valve 39466 is engineered to regulate refrigerant flow in your vehicle's air conditioning system. Designed specifically for select Buick, Chevrolet, GMC, and Saturn models, this aluminum block-type valve ensures efficient cooling performance with R134a refrigerant compatibility.

Key Features of Four Seasons Expansion Valve 39466

• Constructed from durable aluminum 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 performance
• Includes slim line sealing washers (O-Rings 24401 and 24402) for leak prevention

Detailed Description of the Expansion Valve

This Four Seasons Expansion Valve from the Expansion Valve product line is a precision-engineered component that controls refrigerant flow between the condenser and evaporator. Its aluminum construction provides strength and heat resistance, while the block type design simplifies mounting with two holes. The valve features female suction inlet and outlet fittings with No. 10 and No. 12 thread diameters respectively, both non-threaded, ensuring a proper seal with included slim line sealing washers. Liquid inlet and outlet fittings are also female with No. 6 and No. 8 thread diameters, designed for sealing washer connections. This valve is compatible with R134a refrigerant, commonly used in modern automotive A/C systems.

Compatible Vehicles and Applications

This expansion valve is compatible with the following makes and models:

• Buick Enclave
• Chevrolet Acadia, Traverse
• GMC Acadia, Terrain
• Saturn Outlook

It is designed to replace OEM part numbers and meets or exceeds original equipment manufacturer standards, ensuring proper fit and function in these vehicles.

Common Issues Addressed by This Expansion Valve

• Inconsistent or insufficient air conditioning cooling
• Refrigerant flow restrictions causing system inefficiency
• Leaks due to worn or damaged sealing washers
• Failure of the block type valve leading to A/C system malfunction
• Corrosion or wear in original aluminum expansion valves

Installation Notes and Tips

• Ensure system is evacuated and depressurized before removal
• Inspect and replace sealing washers (O-Rings 24401 and 24402) to prevent leaks
• Verify compatibility with vehicle make and model prior to installation
• Use proper torque specifications on mounting bolts to avoid damage
• Check for refrigerant leaks after installation and recharge system with R134a refrigerant

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39466 is manufactured to meet or exceed OEM standards, providing reliable performance and durability. This part undergoes rigorous quality control to ensure proper fit and function. Warranty coverage details should be confirmed with the original parts provider or manufacturer documentation.