Four Seasons 39231 A/C Expansion Valve

Four Seasons 39231 Expansion Valve Overview

The Four Seasons 39231 A/C expansion valve is a TXV-style HVAC flow restrictor built for R134A systems. With a brass body and a 0.5 super heat setting, it helps regulate refrigerant flow through the evaporator for stable air conditioning performance.

Compatible With 1994-2000 Lexus SC300 and 1994-2000 Lexus SC400 applications, this Four Seasons Expansion Valve is a direct-fit service part for select Lexus HVAC repairs. The Four Seasons 39231 is also cross-referenced to Febi-Bilstein 39231 for the same application.

Key Features

• TXV A/C expansion valve for HVAC refrigerant control
• Brass construction for use in automotive air conditioning service
• Configured for R134A refrigerant systems
• 0.5 super heat specification
• Four Seasons Expansion Valve line, Part Number 39231

Fitment Details

• Fits 1994-2000 Lexus SC300, N/A, Expansion Valve
• Fits 1994-2000 Lexus SC400, N/A, Expansion Valve

Product Use and Common Repair Needs

• Restores refrigerant metering at the evaporator inlet
• Addresses weak or inconsistent cabin cooling
• Helps correct improper refrigerant flow in R134A systems
• Supports repair of HVAC performance issues tied to a worn or restricted TXV
• Useful when servicing Lexus SC300 and Lexus SC400 air conditioning systems

Installation Notes and Tips

Verify refrigerant type, system cleanliness, and OE-style fitment before installation. Replace the expansion valve during A/C service when contamination, restriction, or poor evaporator control is present, and evacuate and recharge the system according to factory procedures after repair. Confirm the Four Seasons 39231 matches the original valve configuration for the vehicle.

Quality Assurance

Four Seasons supplies HVAC service parts for automotive air conditioning repairs, and this expansion valve is built to match the listed application and refrigerant specification. Part number 39231 is identified for select Lexus SC300 and Lexus SC400 models.