Four Seasons 38620 A/C Expansion Valve

Four Seasons 38620 Expansion Valve

The Four Seasons 38620 A/C expansion valve is a block-type HVAC flow restrictor built for R134A systems. It uses an aluminum body with female O-ring connections and OE-style dimensions for service on select Volkswagen applications.

Key Features

• Block-type A/C expansion valve for R134A refrigerant systems
• Aluminum construction with aluminum finish
• Female O-ring suction and liquid connections
• Mounting hole quantity: 2
• Super heat setting: 6.300
• Meets or exceeds OEM requirements
• Style: w/o solenoid
• Compatible with select Volkswagen Corrado, Golf, Jetta, and Passat applications

Product Details

Four Seasons 38620 is an A/C expansion valve designed for precise refrigerant metering in R134A air conditioning systems. This block-type valve uses female O-ring inlet and outlet fittings with OE-style thread sizes for the suction and liquid sides, helping maintain proper refrigerant flow across the evaporator circuit. It is listed for 1990-1992 Volkswagen Corrado, 1985-1992 Volkswagen Golf, 1985-1992 Volkswagen Jetta, and 1990-1992 Volkswagen Passat. The Four Seasons Expansion Valve line focuses on direct-fit HVAC service parts, and part number 38620 is also referenced as 57395 in Four Seasons interchange data.

Common Problems This Part Can Address

• Inconsistent cabin cooling performance
• Restricted or improper refrigerant metering
• Warm air from the vents during A/C operation
• Erratic evaporator temperature control
• Service replacement for a worn or leaking expansion valve

Installation Notes and Tips

• Verify refrigerant type before installation; this valve is specified for R134A systems.
• Inspect mating surfaces and replace damaged O-rings during service.
• Confirm suction and liquid line thread sizes and fitting orientation before assembly.
• Evacuate and recharge the system according to factory service procedures after replacement.
• Check the A/C system for contamination, leaks, or compressor issues that could affect valve performance.

Quality Assurance

Four Seasons 38620 is built to meet or exceed OEM specifications for the listed applications. It is engineered as a direct replacement A/C expansion valve for select Volkswagen Corrado, Golf, Jetta, and Passat models.