Four Seasons 39134 A/C Expansion Valve - Front

Four Seasons 39134 Expansion Valve Overview

The Four Seasons 39134 expansion valve is a block-type A/C flow restrictor built for R134A systems and engineered for front HVAC service on select Lexus LS430 applications. This aluminum expansion valve helps regulate refrigerant flow into the evaporator for stable cooling performance in the cabin.

For Lexus LS430 owners searching for a front A/C expansion valve, Four Seasons 39134 provides an OE-style replacement that meets or exceeds OEM requirements. It is a direct-fit service part for 2001-2006 Lexus LS430 front applications and is identified by part number 39134.

Key Features

• Block-type A/C expansion valve for HVAC refrigerant control
• Aluminum construction with aluminum finish
• Designed for R134A refrigerant systems
• Captured O-ring liquid and suction connections
• Female inlet and outlet fittings
• 2 mounting holes for secure installation
• OE-level replacement that meets or exceeds OEM specifications
• Fits 2001-2006 Lexus LS430, front

Product Details

Four Seasons Expansion Valve 39134 is built for front HVAC use on the Lexus LS430 and is configured without a solenoid. The valve uses captured O-ring sealing surfaces on both suction and liquid connections, with female fittings and non-threaded interfaces for service-friendly replacement. It is specified for a 1.5 ton application and is intended for R134A refrigerant systems. The part number 39134 is also useful when cross-checking service records or ordering the correct A/C expansion valve for 2001-2006 Lexus LS430 front repairs.

This part cross-references Global Parts Distributors LLC 3411361 for the same application.

Common Problems This Part Can Address

• Inconsistent cabin cooling from a restricted or sticking expansion valve
• Warm air from the vents when refrigerant metering is no longer stable
• Uneven evaporator performance in the front HVAC system
• A/C performance loss after contamination or wear in the refrigerant circuit
• Service replacement needs on 2001-2006 Lexus LS430 front A/C systems

Installation Notes and Tips

Before installation, verify the vehicle is a 2001-2006 Lexus LS430 with front HVAC service requirements and confirm the system uses R134A refrigerant. Inspect the mating surfaces, replace worn O-rings as needed, and ensure the captured O-ring connections seat correctly during assembly. Proper evacuation and recharge procedures should be followed after the A/C system is opened.

Use the part number 39134 to confirm the correct replacement during ordering and service lookup. For Lexus LS430 front A/C repairs, matching the valve style and connection sizes is important for proper refrigerant control.

Quality Assurance

Four Seasons lists this expansion valve as meeting or exceeding OEM requirements, making it a technical replacement choice for front A/C service on the Lexus LS430. The Four Seasons 39134 expansion valve is built to support accurate refrigerant metering in the specified application.