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Four Seasons 39602 A/C Expansion Valve - Rear
| Brand | Four Seasons 39602 |
|---|---|
| Position | 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 |
| Product line | Expansion Valve |
| Fits | Lexus · 6 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable A/C flow control.
Aluminum construction. Lightweight design resists corrosion in demanding HVAC service.
Block type design. Uses O-ring connections and a solenoid for precise refrigerant control.
Cross-references Four Seasons 39602, Global Parts Distributors LLC 3411800 and UAC EX10265C for the same application. See all 8.
Four Seasons 39602 Expansion Valve
The Four Seasons 39602 expansion valve is a block-type A/C flow restrictor built for R134A systems and rear HVAC service on select Lexus GX470 models. It uses an aluminum body with O-ring connections and solenoid-style construction to support accurate refrigerant metering in the air conditioning circuit.
Key Features
- Four Seasons Expansion Valve, part number 39602
- Block type A/C expansion valve for R134A refrigerant systems
- Aluminum construction for HVAC service applications
- O-ring suction and liquid inlet/outlet connections
- Female suction and liquid fittings with No. 10 and No. 8 thread diameters
- 2 mounting holes for rear HVAC installation
- Meets or exceeds OEM specifications
- 1.5 tonnage rating with -4.0 super heat
Product Details
Four Seasons 39602 is an A/C expansion valve from the Expansion Valve product line, built for precise refrigerant control in automotive HVAC systems. This block-type valve is specified for R134A refrigerant and uses female O-ring fittings on both the suction and liquid sides for service on the rear air conditioning circuit. It is a direct-fit style replacement for the 2004-2009 Lexus GX470 rear expansion valve application and is engineered to meet or exceed OEM requirements. This part cross-references UAC EX10265C for the same application.
Common HVAC Issues This Part Addresses
- Rear A/C outlet air that is too warm
- Irregular refrigerant flow through the expansion circuit
- Loss of cooling performance in the Lexus GX470 rear HVAC system
- Incorrect superheat control in the evaporator circuit
- Service replacement for a worn or leaking expansion valve
Installation Notes and Tips
Fits 2004-2009 Lexus GX470, rear. Verify R134A system compatibility, match the No. 10 suction and No. 8 liquid connection sizes, and confirm the O-ring sealing surfaces are clean before assembly. Replace any damaged seals during HVAC service and evacuate and recharge the system according to factory procedures after installation. Confirm the rear HVAC layout before ordering the Four Seasons 39602 expansion valve.
Quality Assurance
Four Seasons states this expansion valve meets or exceeds OEM specifications for the listed application. The part number 39602 is also listed under common interchange references for the same rear Lexus GX470 HVAC service use.
| 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 |
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