Four Seasons 39486 A/C Expansion Valve - Rear

Reliable Four Seasons Expansion Valve for Automotive A/C Systems

The Four Seasons Expansion Valve 39486 is engineered to regulate refrigerant flow in automotive air conditioning systems using R134a refrigerant. Designed with durable aluminum construction, this block-type valve ensures consistent performance and compatibility with various vehicle makes and models requiring precise A/C flow control.

• Constructed from corrosion-resistant aluminum for durability
• Compatible with R134a refrigerant systems
• Block-type design with two mounting holes for secure installation
• Female suction and liquid inlet/outlet fittings with sealing washer style
• Meets or exceeds OEM specifications for reliable fit and function

Detailed Features and Specifications of Part Number 39486

This Four Seasons Expansion Valve 39486 features a block-type design without a solenoid, optimized for vehicles using R134a refrigerant. The valve includes two mounting holes for stable attachment. Both suction and liquid inlet/outlet fittings are female with sealing washer types, ensuring leak-free connections. The suction inlet fitting thread diameter is No. 10 (not threaded), and the suction outlet fitting thread diameter is No. 12 (not threaded). Liquid inlet and outlet fittings have thread diameters No. 6 and No. 8 respectively, also not threaded. The liquid inlet size measures 0.34 inches (8.6 mm), and the liquid outlet size is 0.46 inches (11.8 mm). Suction inlet size is 0.63 inches (16 mm). The aluminum color and material provide corrosion resistance and long service life.

About the Four Seasons Expansion Valve Product Line

The Four Seasons Expansion Valve product line focuses on delivering precise refrigerant flow control components for automotive HVAC systems. This line includes block-type valves like part number 39486, designed to meet or exceed OEM standards. These valves are engineered to maintain optimal A/C system performance and reliability across a range of vehicle applications.

Common Applications and Issues Addressed

• Regulates refrigerant flow to maintain proper cooling efficiency
• Prevents compressor damage caused by improper refrigerant pressure
• Eliminates inconsistent cabin temperatures due to faulty expansion valves
• Resolves A/C system leaks related to worn or damaged valve fittings
• Supports restoration of factory A/C performance in vehicles using R134a refrigerant

Installation Notes and Tips

When installing the Four Seasons Expansion Valve 39486, ensure the valve is mounted securely using the two provided mounting holes. Confirm that all female fittings with sealing washers are properly seated to prevent refrigerant leaks. This valve is designed for systems using R134a refrigerant; verify compatibility with your vehicle’s A/C system before installation. Avoid threading fittings as the valve’s inlet and outlet connections are not threaded.

Quality Assurance and Warranty Information

Four Seasons Expansion Valve 39486 meets or exceeds OEM specifications, ensuring reliable performance and fitment. Manufactured with high-quality aluminum, this valve offers corrosion resistance and durability. While specific warranty details are not provided, Four Seasons products typically adhere to industry standards for quality and reliability.