Four Seasons 39675 A/C Expansion Valve - Front

Four Seasons 39675 Expansion Valve for Subaru A/C Service

Four Seasons 39675 is a block-type A/C expansion valve built for Subaru HVAC systems that use R134A refrigerant. It is an aluminum, OE-style replacement for front A/C flow control, with O-ring inlet and outlet connections for a direct service fit.

Key Features

• Block-type A/C expansion valve for Subaru applications
• Aluminum construction for HVAC service durability
• R134A refrigerant type
• Liquid inlet: No. 6 O-ring
• Liquid outlet: No. 10 O-ring
• Suction inlet: No. 12 O-ring
• Suction outlet: No. 12 O-ring
• Style: w/o solenoid
• Super heat: 0.5
• Tonnage: 1.5
• Meets or exceeds OEM requirements

Product Details

Four Seasons Expansion Valve 39675 is engineered for precise refrigerant metering in the air conditioning system. It is used in Subaru Ascent, Subaru Legacy, Subaru Outback, and Subaru Impreza applications, including 2019-2025 Subaru Ascent, front, and 2016-2025 Subaru Legacy and Subaru Outback, plus 2020-2023 Subaru Impreza. This part cross-references UAC EX10625C for the same application.

The Four Seasons expansion valve line is focused on replacement HVAC components that match OE service requirements. For Subaru A/C repair work, this valve supports proper refrigerant flow control in R134A systems and is built to align with factory-style block mounting and O-ring sealing.

Common Problems This Part Addresses

• Incorrect refrigerant metering through the evaporator circuit
• Weak or inconsistent cabin cooling
• Restricted A/C flow caused by a worn internal valve
• Leak points at aging O-ring connections
• HVAC performance issues during Subaru A/C service

Installation Notes and Tips

• Verify the vehicle uses an R134A system before installation.
• Inspect and replace sealing O-rings as needed during A/C service.
• Confirm the block-type mounting and line sizes match the original part.
• Recover, evacuate, and recharge the system using proper HVAC procedures.
• Check for contamination in the system before installing the new valve.

Quality Assurance

Four Seasons backs this expansion valve with more than 50 years of mobile A/C experience and states that its products are engineered and tested for years of trouble-free operation. Part number 39675 is built as an OE-style replacement for Subaru HVAC repair.