Four Seasons 39090 A/C Expansion Valve

Four Seasons 39090 A/C Expansion Valve

The Four Seasons 39090 expansion valve is a brass TXV for R134A air conditioning systems. It regulates refrigerant flow into the evaporator and helps maintain proper superheat control for stable cabin cooling in the 1997-2001 Honda Prelude.

Key Features

• Four Seasons Expansion Valve line
• Part number 39090
• Brass construction
• TXV design for R134A refrigerant
• Super heat setting: 4.5
• Direct fit for 1997-2001 Honda Prelude A/C service

Product Details

This A/C expansion valve meters refrigerant into the evaporator based on system demand, helping the HVAC system maintain the correct pressure drop and refrigerant feed rate. For Honda Prelude models from 1997 through 2001, the Four Seasons 39090 is a service replacement for restoring proper A/C operation when the original valve is restricted, sticking, or no longer controlling refrigerant flow correctly. The brass body and TXV design make it a practical choice for R134A-equipped systems that need accurate superheat management.

This part cross-references Global Parts Distributors LLC 3411308 for the same application.

Common Repair Symptoms

• Weak or inconsistent cabin cooling
• Evaporator starvation from restricted refrigerant flow
• High or unstable vent temperatures
• Compressor cycling caused by improper expansion valve control
• A/C performance loss in a 1997-2001 Honda Prelude

Installation Notes

Verify refrigerant type before installation; this valve is specified for R134A systems. Inspect the A/C system for contamination, moisture, and debris before replacing the valve, and confirm the correct superheat setting during service. Always evacuate and recharge the system according to factory procedures after component replacement.

Quality Assurance

Four Seasons supplies HVAC service parts for automotive air conditioning repairs, and the 39090 expansion valve is built to meet the application requirements listed for the Honda Prelude platform.