Four Seasons 39677 A/C Expansion Valve - Rear

Reliable A/C Expansion Valve for Land Rover and Subaru Models

The Four Seasons Expansion Valve 39677 is engineered to regulate refrigerant flow in your vehicle's air conditioning system. Designed specifically for Land Rover Defender 90 and Subaru Crosstrek and Impreza models, this aluminum block-type valve ensures efficient cooling performance with R134a refrigerant.

• Constructed from durable aluminum for long-lasting use
• Compatible with R134a refrigerant systems
• Block type design without solenoid for precise flow control
• O-ring style liquid and suction inlet/outlet connections
• Meets or exceeds OEM specifications for reliable fit and function

Product Line Details: Four Seasons Expansion Valve

The Four Seasons Expansion Valve product line focuses on delivering precise refrigerant flow restrictors that maintain optimal A/C system performance. This line includes block-type valves like part number 39677, designed to provide consistent superheat control and efficient cooling without the need for solenoid components. The Expansion Valve line supports various vehicle makes and models, including Land Rover and Subaru, ensuring compatibility and durability.

Technical Description and Features

Part number 39677 is a block-type A/C expansion valve made from aluminum, suitable for use with R134a refrigerant. It features O-ring style liquid inlet and outlet connections sized No. 6 and No. 10 respectively, as well as suction inlet and outlet connections sized No. 12. The valve operates with a superheat value of -7.000 and is rated for a 1-ton cooling capacity. This design helps regulate refrigerant flow precisely, maintaining system efficiency and preventing compressor damage.

Common Applications and Issues Addressed

• Restores proper refrigerant flow in Land Rover Defender 90 and Subaru Crosstrek and Impreza A/C systems
• Resolves inconsistent cabin cooling or fluctuating temperatures
• Prevents compressor overload caused by improper refrigerant metering
• Eliminates issues related to refrigerant leaks at expansion valve connections
• Improves overall air conditioning system reliability and performance

Installation Notes and Tips

This expansion valve does not include mounting hardware, so ensure you have the necessary tools and components for installation. The O-ring style connections require careful sealing to prevent refrigerant leaks. It is recommended to replace O-rings during installation and verify compatibility with your vehicle’s A/C system. Proper evacuation and recharge of the refrigerant system are essential after installation.

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39677 meets or exceeds OEM standards, ensuring a reliable replacement part for your Land Rover or Subaru vehicle. Manufactured with precision aluminum and designed for R134a refrigerant systems, this valve supports consistent A/C performance. Warranty details should be confirmed with the product documentation or supplier.