Four Seasons 39660 A/C Expansion Valve

Reliable A/C Expansion Valve for Lexus and Toyota Models

The Four Seasons Expansion Valve 39660 is engineered to regulate refrigerant flow in automotive air conditioning systems. Designed specifically for select Lexus and Toyota vehicles, 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 fittings with O-ring seals for suction and liquid inlets/outlets
• Meets or exceeds OEM specifications for reliable performance
• Designed without a solenoid switch, suitable for 1.5 ton A/C systems

About the Four Seasons Expansion Valve Product Line

The Expansion Valve product line by Four Seasons focuses on precise refrigerant flow restriction to optimize air conditioning performance. This line includes block-type valves like part number 39660, which are designed to maintain proper superheat levels and ensure consistent cooling in vehicles such as the Lexus ES300h and Toyota RAV4 Prime. These valves are engineered to meet OEM standards, providing a direct replacement for factory-installed components.

Detailed Product Description and Specifications

Part number 39660 features a block-type expansion valve constructed from aluminum, offering corrosion resistance and durability. It is designed for use with R134a refrigerant and includes female fittings on both suction and liquid sides, all sealed with O-rings to prevent leaks. The suction inlet and outlet fittings have a No. 10 thread diameter, while the liquid inlet and outlet fittings have No. 6 and No. 10 thread diameters respectively. This valve supports a 1.5 ton A/C system and maintains a superheat value of -0.8, ensuring efficient refrigerant metering and system protection.

Compatible Vehicles and Common Applications

• Compatible with Lexus models: ES300h, LS500h, NX350h, UX250h
• Compatible with Toyota models: Corolla, Mirai, Prius, Prius AWD-e, RAV4, RAV4 Prime, Venza
• Used to regulate refrigerant flow in automotive A/C systems
• Helps resolve issues such as inconsistent cabin cooling and refrigerant flow imbalance
• Prevents compressor damage caused by improper refrigerant metering

Installation Notes and Tips

Ensure the system is fully evacuated and free of contaminants before installing the expansion valve. Use proper torque specifications on the two mounting holes to avoid leaks. Verify that all O-ring seals are properly seated on the female fittings to maintain system integrity. This valve does not include a solenoid switch, so confirm compatibility with the vehicle’s A/C control system prior to installation.

Quality Assurance and Warranty

The Four Seasons Expansion Valve 39660 meets or exceeds OEM standards for fit, form, and function. Manufactured with precision aluminum and designed for R134a refrigerant systems, this valve provides reliable performance in compatible Lexus and Toyota vehicles. Warranty details should be confirmed with the product documentation or supplier.