Four Seasons 39429 A/C Expansion Valve - Front

Reliable A/C Expansion Valve for Jaguar, Land Rover, and Volvo

The Four Seasons Expansion Valve 39429 is engineered to regulate refrigerant flow in your vehicle's air conditioning system. Designed specifically for select Jaguar, Land Rover, and Volvo models, this aluminum block-type valve ensures precise temperature control and system efficiency.

• Constructed from durable aluminum material
• Compatible with R134a refrigerant systems
• Block type design 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 performance

About the Four Seasons Expansion Valve Product Line

The Four Seasons Expansion Valve line focuses on high-quality A/C flow restrictors designed to maintain optimal refrigerant metering in automotive HVAC systems. The 39429 model exemplifies this line by offering precise flow control and compatibility with multiple vehicle makes, including Jaguar, Land Rover, and Volvo. This ensures consistent cooling performance and system longevity.

Detailed Product Description and Specifications

This A/C expansion valve is crafted from aluminum, providing corrosion resistance and durability under varying operating conditions. It is designed for use with R134a refrigerant and features a block-type construction with two mounting holes for secure attachment. The valve includes female suction inlet and outlet fittings with No. 10 and No. 12 thread diameters respectively, both non-threaded, and female liquid inlet and outlet fittings with No. 8 thread diameters. The liquid inlet and outlet utilize captured o-ring and female insert o-ring styles to ensure leak-free connections. The valve’s liquid inlet size measures 0.540 inches (13.6 mm), and the liquid outlet size is 0.540 inches (13.8 mm). This part meets or exceeds OEM standards, making it a dependable replacement for your vehicle’s HVAC system.

Compatible Vehicles and Common Applications

• Jaguar Discovery and Discovery Sport
• Jaguar E-Pace
• Land Rover LR2 and Range Rover Evoque
• Volvo S60, S60 Cross Country, S80
• Volvo V60, V60 Cross Country, V70, XC60, XC70

Common Issues Addressed by the Expansion Valve 39429

• Inconsistent cabin cooling or temperature fluctuations
• Reduced A/C system efficiency due to improper refrigerant flow
• Compressor cycling or short cycling problems
• Refrigerant leaks at valve connections
• System freeze-ups caused by faulty expansion valve operation

Installation Notes and Tips

Ensure the A/C system is properly evacuated and free of contaminants before installing the expansion valve. Use the correct o-rings provided or specified to maintain a secure, leak-free seal. The valve’s two mounting holes allow for straightforward attachment; verify alignment with the vehicle’s HVAC system. Avoid overtightening fittings to prevent damage to the aluminum body or o-rings. It is recommended to replace the receiver/drier or accumulator when servicing the expansion valve to maintain system integrity.

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39429 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. This part includes green o-rings ([24661] and [24608]) for secure sealing. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.