OE Quality
60-Day Returns

Four Seasons 39602 A/C Expansion Valve - Rear
Reliable A/C Expansion Valve for Lexus GX470
The Four Seasons Expansion Valve 39602 is engineered to regulate refrigerant flow in your Lexus GX470's air conditioning system. Designed specifically for R134a refrigerant, this block-type valve ensures efficient cooling performance and system protection.
- Constructed from durable aluminum for long-lasting use
- Compatible with R134a refrigerant systems
- Block type design with two mounting holes for secure installation
- Female suction and liquid inlet/outlet fittings with O-ring seals
- Meets or exceeds OEM specifications for reliable fit and function
- Includes solenoid style for precise refrigerant control
- Designed for 1.5 ton A/C systems, suitable for Lexus GX470
About the Four Seasons Expansion Valve Product Line
The Four Seasons Expansion Valve line focuses on delivering precise refrigerant flow control components for automotive HVAC systems. This Expansion Valve model 39602 is part of that line, offering a block-type valve with integrated solenoid functionality. It is designed to meet or exceed original equipment manufacturer standards, ensuring compatibility and performance in vehicles like the Lexus GX470.
Detailed Product Description
This A/C expansion valve is crafted from aluminum, providing corrosion resistance and durability under typical automotive operating conditions. It features female suction and liquid inlet/outlet fittings with No. 10 and No. 8 thread diameters respectively, all utilizing O-ring seals to prevent refrigerant leaks. The valve is designed for use with R134a refrigerant and supports a 1.5 ton cooling capacity, making it suitable for the Lexus GX470's HVAC system. The block-type design includes two mounting holes for secure attachment, and the solenoid style allows for controlled refrigerant flow, optimizing system efficiency and superheat control at -4.0.
Common Applications and Issues Addressed
- Regulates refrigerant flow to maintain proper cooling performance
- Prevents compressor damage caused by improper refrigerant pressure
- Eliminates inconsistent cabin temperatures due to faulty expansion valves
- Resolves refrigerant leaks associated with worn or damaged fittings
- Improves overall A/C system reliability in Lexus GX470 vehicles
Installation Notes and Tips
- Ensure system is evacuated and free of refrigerant before removal
- Verify compatibility with Lexus GX470 and R134a refrigerant systems
- Inspect O-rings and replace if necessary to prevent leaks
- Use proper torque on mounting bolts to avoid damage
- Test A/C system operation after installation to confirm proper function
Quality Assurance and Warranty
The Four Seasons Expansion Valve 39602 meets or exceeds OEM specifications, ensuring reliable fit and function for the Lexus GX470. Manufactured with high-quality aluminum and precision engineering, this valve is designed for durability and consistent performance. While specific warranty details are not provided, Four Seasons products typically adhere to industry standards for quality and reliability.
| Brand | Four Seasons |
|---|---|
| Part Number | 39602 |
| Position | Expansion Valve, Rear |
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 8 |
| Liquid Inlet Style | O-Ring |
| Liquid Inlet Thread Type | Not Threaded |
| Liquid Inlet Type | O-Ring |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 8 |
| Liquid Outlet Style | O-Ring |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | O-Ring |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| Refrigerant Type | R134A |
| Style | w/ Solenoid |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | O-Ring |
| Suction Inlet Thread Type | Not Threaded |
| Suction Inlet Type | O-Ring |
| Suction Outlet Fitting Gender | Female |
| Suction Outlet Fitting Thread Diameter | No. 10 |
| Suction Outlet Style | O-Ring |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | O-Ring |
| Super Heat | -4.0 |
| Switch Included? | Not Included |
| Tonnage | 1.5 |
| Type | Block Type |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Lexus | GX470 | Rear | Expansion Valve |
| 2008 | Lexus | GX470 | Rear | Expansion Valve |
| 2007 | Lexus | GX470 | Rear | Expansion Valve |
| 2006 | Lexus | GX470 | Rear | Expansion Valve |
| 2005 | Lexus | GX470 | Rear | Expansion Valve |
| 2004 | Lexus | GX470 | Rear | Expansion Valve |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.