Four Seasons 39000 A/C Expansion Valve

Four Seasons 39000 A/C Expansion Valve

The Four Seasons Expansion Valve, part number 39000, is a TXV-style A/C flow restrictor for R134A systems. It is built with a brass body and a 4.5 super heat setting to help regulate refrigerant flow in the HVAC circuit.

Compatible with select Honda and Acura applications, including Honda Accord, Civic, CR-V, Insight, Civic del Sol, and Acura Integra and CL, this Four Seasons 39000 expansion valve is a direct-fit service part for common R134A air conditioning repairs.

Key Features

• Brand: Four Seasons Expansion Valve line
• Part number: 39000
• TXV design for refrigerant metering in the A/C system
• Brass construction
• R134A refrigerant type
• 4.5 super heat specification
• Fits select Honda and Acura HVAC applications

Product Details

The Four Seasons 39000 expansion valve controls refrigerant flow into the evaporator so the HVAC system can maintain proper cooling performance. As a TXV, it responds to evaporator conditions and helps manage superheat in R134A-equipped systems. This part cross-references Monroe Shocks & Struts 39001 for the same application.

The Four Seasons Expansion Valve product line covers HVAC service parts for vehicles that require accurate refrigerant metering and stable system operation. For technicians servicing Honda Accord, Honda Civic, or Acura Integra air conditioning systems, this valve provides a specification-matched replacement option for the listed applications.

What It May Help Resolve

• Weak or inconsistent cabin cooling
• Improper refrigerant metering at the evaporator
• HVAC performance issues related to a sticking or worn expansion valve
• Temperature fluctuations during A/C operation
• System inefficiency caused by restricted refrigerant control

Installation Notes and Tips

• Verify R134A system requirements before installation.
• Confirm the vehicle application against the listed fitment for Honda Accord, Honda Civic, Honda CR-V, Honda Insight, Honda Civic del Sol, Acura Integra, and Acura CL.
• Inspect the A/C system for contamination, leaks, and related wear before replacing the valve.
• Follow proper evacuation, recharge, and leak-check procedures after service.

Quality Assurance

Four Seasons HVAC components are cataloged for service replacement use across a wide range of import applications. This part number 39000 is listed for the specified Honda and Acura fitments and is identified as a brass TXV expansion valve for R134A systems.

• Fits 2000-2006 Honda Insight, N/A
• Fits 1994-2002 Honda Accord, N/A
• Fits 1994-2001 Acura Integra, N/A
• Fits 1997-2001 Honda CR-V, N/A
• Fits 1994-2000 Honda Civic, N/A
• Fits 1997-1999 Acura CL, N/A
• Fits 1994-1997 Honda Civic del Sol, N/A