Four Seasons 39613 A/C Expansion Valve

Four Seasons 39613 Expansion Valve Overview

The Four Seasons 39613 expansion valve is a block-type A/C flow restrictor built for R134A systems. It uses an aluminum body with sealing-washer connections and meets or exceeds OEM requirements for direct replacement service.

Four Seasons Expansion Valve 39613 is a fitment-based replacement for select Chevrolet Equinox, GMC Terrain, and Buick Envision applications. It is specified as a solenoid-free valve with a 1.000 ton rating and a -8.000 super heat setting.

Key Features

• Block-type A/C expansion valve for R134A refrigerant systems
• Aluminum construction for HVAC service applications
• Female inlet and outlet fittings with sealing washers
• Liquid side thread sizes: No. 6 inlet and No. 8 outlet
• Suction side thread sizes: No. 10 inlet and No. 12 outlet
• Two mounting holes for OE-style installation
• Meets or exceeds OEM specifications
• Style without solenoid

Detailed Description

Four Seasons 39613 is an A/C expansion valve used to regulate refrigerant flow through the evaporator circuit in R134A-equipped HVAC systems. The block-style design, aluminum housing, and sealing-washer fittings support OE-style service on vehicles that use this configuration. This part number is commonly referenced for Chevrolet Equinox, GMC Terrain, and Buick Envision A/C repair work, including 2018-2024 Chevrolet Equinox, 2018-2024 GMC Terrain, and 2016-2020 Buick Envision applications.

This part cross-references UAC EX10615C for the same application. Four Seasons 39613 is also identified by interchange references including 759829, 23176941, 84116004, 84400227, and A99490.

What It Is Used For

• Restoring proper refrigerant metering in the A/C system
• Addressing weak or inconsistent cabin cooling
• Correcting evaporator feed issues caused by a worn expansion valve
• Replacing a leaking or restricted HVAC flow control component
• Supporting OE-style repair on Chevrolet Equinox, GMC Terrain, and Buick Envision models

Installation Notes and Tips

Verify refrigerant type, fitting style, and thread sizes before installation. This valve uses female sealing-washer connections and is specified without a solenoid, so confirm the original system layout matches the replacement part. Inspect the surrounding A/C components, including the evaporator, lines, and seals, before reassembly to help prevent repeat service.

Quality Assurance

Four Seasons 39613 is listed as meeting or exceeding OEM specifications for the covered applications. Its OE-style construction and fitment data make it a direct replacement option for service on supported Chevrolet, GMC, and Buick vehicles.