Four Seasons 39073 A/C Expansion Valve

Reliable Four Seasons Expansion Valve for Automotive A/C Systems

The Four Seasons Expansion Valve 39073 is engineered to regulate refrigerant flow in automotive air conditioning systems using R134a refrigerant. Constructed from durable aluminum, this block-type valve ensures consistent performance and compatibility with various vehicle makes and models requiring precise A/C flow control.

• Material: Aluminum construction for corrosion resistance and durability
• Designed for R134a refrigerant systems
• Block type expansion valve with two mounting holes for secure installation
• Female suction and liquid inlet/outlet fittings with O-ring seals
• Meets or exceeds OEM specifications for reliable fit and function

Detailed Features and Specifications

The Four Seasons Expansion Valve 39073 features a block-type design that facilitates efficient refrigerant metering in automotive A/C systems. Both suction inlet and outlet fittings are female with No. 10 thread diameters, while liquid inlet and outlet fittings are female with No. 6 and No. 8 thread diameters respectively. The valve uses O-ring type seals on liquid inlet and outlet connections, ensuring leak-free operation. Its aluminum body provides lightweight strength and resistance to corrosion, suitable for long-term use in various vehicle environments.

About the Four Seasons Expansion Valve Product Line

The Expansion Valve product line by Four Seasons focuses on precise refrigerant flow restriction components designed to maintain optimal air conditioning system performance. This line includes block-type valves like part number 39073, engineered to meet or exceed OEM standards, ensuring compatibility and reliable operation across multiple vehicle applications.

Common Applications and Issues Addressed

• Regulates refrigerant flow to maintain proper evaporator pressure
• Prevents compressor damage caused by improper refrigerant metering
• Helps resolve inconsistent cabin cooling or fluctuating A/C performance
• Addresses refrigerant leaks due to worn or damaged expansion valves
• Supports system efficiency by maintaining correct refrigerant superheat levels

Installation Notes and Tips

Ensure the system is fully evacuated and free of contaminants before installing the expansion valve. Verify that the O-rings are properly seated on the liquid inlet and outlet fittings to prevent leaks. Use the two mounting holes to securely fasten the valve in place, and confirm compatibility with your vehicle’s A/C system refrigerant type R134a. Avoid overtightening fittings to maintain seal integrity.

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39073 meets or exceeds OEM specifications, providing dependable performance for automotive air conditioning systems. Manufactured with high-quality aluminum and precision fittings, this valve is designed for durability and long service life. Warranty details should be confirmed with the product documentation or manufacturer.