Four Seasons 39617 A/C Expansion Valve - Front

Overview of Four Seasons Expansion Valve 39617

The Four Seasons Expansion Valve 39617 is designed for precise control of refrigerant flow in automotive air conditioning systems. Engineered from durable aluminum, this block-type A/C expansion valve is compatible with various Audi models, including the Q7, Q8, and their high-performance variants.

• Constructed from aluminum for durability and 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 No. 12 and No. 8 thread diameters
• Sealing washer style fittings for reliable leak prevention
• Meets or exceeds OEM specifications
• Designed without a solenoid and does not include a switch
• Superheat rating of -0.500 and 1.000 tonnage capacity

Four Seasons Expansion Valve Product Line Details

The Expansion Valve product line by Four Seasons focuses on delivering precise refrigerant metering components that maintain optimal A/C system performance. This line emphasizes OEM compatibility and reliable materials, such as aluminum, to ensure long-lasting operation. The 39617 valve fits within this line by providing a block-type valve solution tailored for specific Audi models, supporting efficient cooling and system stability.

Technical Description and Compatibility

The Four Seasons Expansion Valve 39617 is specifically engineered for use with R134a refrigerant in Audi vehicles including the Q7, Q8, Q8 e-tron Sportback, RS Q8, SQ7, SQ8, SQ8 e-tron, and SQ8 e-tron Sportback. Its aluminum construction offers resistance to corrosion and heat, while the block-type design ensures consistent refrigerant flow control. The valve features female suction and liquid inlet/outlet fittings with No. 12 and No. 8 thread diameters, all utilizing sealing washers to prevent leaks. The two mounting holes provide secure attachment points, facilitating proper installation and alignment within the HVAC system.

Common Applications and Problem Resolution

• Regulates refrigerant flow to maintain proper evaporator temperature
• Prevents compressor damage caused by improper refrigerant metering
• Addresses issues with inconsistent cabin cooling performance
• Helps eliminate A/C system freeze-ups due to incorrect superheat levels
• Replaces faulty or worn expansion valves in compatible Audi models

Installation Notes and Tips

When installing the Four Seasons Expansion Valve 39617, ensure the system is properly evacuated and charged with R134a refrigerant. Verify that all sealing washers are correctly positioned to prevent leaks at the suction and liquid fittings. Use the two mounting holes to secure the valve firmly, avoiding overtightening which could damage the aluminum body. It is recommended to inspect the entire A/C system for other worn components during replacement to maintain optimal performance.

Quality Assurance and Warranty

This expansion valve meets or exceeds OEM standards for fit, form, and function, ensuring reliable operation in specified Audi models. Manufactured with high-quality aluminum and precision engineering, the Four Seasons Expansion Valve 39617 is designed for durability and consistent performance. Warranty coverage details should be confirmed with the product documentation or supplier.