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Four Seasons 39088 A/C Expansion Valve
| Brand | Four Seasons 39088 |
|---|---|
| Color | Gold |
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Size IN | 0.35 |
| Liquid Inlet Size MM | 9 |
| Liquid Inlet Style | FIO |
| Liquid Inlet Thread Type | Not Threaded |
| Liquid Inlet Type | Insert O-Ring |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 10 |
| Liquid Outlet Style | FIO |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | Insert O-Ring |
| Lqd Out Size IN | 0.650 |
| Lqd Out Size MM | 16.54 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| O-Ring A Number/Desc | [24606] / Green O-Ring |
| O-Ring B Number/Desc | [24610] / Green O-Ring |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suc In Size IN | 0.650 |
| Suc In Size MM | 16.54 |
| Suc Out Size IN | 0.650 |
| Suc Out Size MM | 16.54 |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | FIO |
| Suction Inlet Thread Type | Not Threaded |
| Suction Inlet Type | Insert O-Ring |
| Suction Outlet Fitting Gender | Female |
| Suction Outlet Fitting Thread Diameter | No. 10 |
| Suction Outlet Style | FIO |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | Insert O-Ring |
| Super Heat | 7.500 |
| Switch Included? | Not Included |
| Tonnage | 1.000 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Kia and Hyundai · 19 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable fit and function.
Aluminum construction. Lightweight block-type design for efficient refrigerant control.
R134A compatible. Built for use with this common refrigerant type.
Cross-references ATE 230043, Davico Mfg 17642 and Four Seasons 39088 for the same application. See all 21.
Four Seasons 39088 Expansion Valve Overview
Four Seasons 39088 is a block-type A/C expansion valve for R134A systems, built with an aluminum body and OE-style fitment details. It is used in HVAC systems on select Kia and Hyundai vehicles, including the Optima, XG350, Sonata, Magentis, and XG300.
The Four Seasons Expansion Valve line focuses on precise refrigerant control at the evaporator inlet. This 39088 valve follows the listed OE-style mounting and port dimensions, with a w/o solenoid design and a 7.5 super heat setting for the specified application.
Key Features
- Part number 39088 from Four Seasons Expansion Valve
- Block-type A/C expansion valve for R134A refrigerant
- Aluminum construction with gold finish
- Female FIO suction and liquid connections with insert O-ring sealing
- Mounting hole quantity: 2
- Meets or exceeds OEM specifications
- Designed for 1.0 tonnage applications
- OE-style fitment for Hyundai Sonata and Kia Optima applications
Detailed Description
Four Seasons 39088 regulates refrigerant flow into the evaporator to help maintain proper A/C system performance. It uses female suction inlet and outlet fittings with No. 10 thread diameter, plus female liquid inlet and outlet fittings with No. 6 and No. 10 thread diameters, all in an insert O-ring FIO style. The valve is specified without a solenoid and includes the listed OE-style dimensions for the confirmed vehicle applications. For shoppers searching for a Hyundai Sonata expansion valve, Kia Optima A/C expansion valve, or Hyundai XG350 HVAC flow restrictor, this part number 39088 matches the documented fitment.
What It Helps Address
- Weak or inconsistent cabin cooling
- Incorrect refrigerant metering at the evaporator
- A/C performance issues tied to a worn expansion valve
- Temperature fluctuations in the HVAC system
- Service replacement for a leaking or restricted valve
Installation Notes and Tips
Verify the system uses R134A refrigerant and confirm the block-type valve layout before installation. Match the suction and liquid port sizes, thread diameters, and insert O-ring style to the original component. Replace seals as required during service, evacuate the system properly, and recharge to the vehicle manufacturer’s specifications after repair. Fits 2001-2006 Kia Optima, N/A; Fits 2002-2005 Hyundai XG350, N/A; Fits 1999-2004 Hyundai Sonata, N/A; Fits 2002 Kia Magentis, N/A; Fits 2001 Hyundai XG300, N/A.
Quality Assurance
Four Seasons lists this expansion valve as meeting or exceeding OEM requirements for the specified application. Cross-reference part numbers include UAC EX529443C and Global Parts Distributors LLC 3411395 for the same application.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Kia | Optima | 2.4L | L4 | N/A | Expansion Valve |
| 2006 | Kia | Optima | 2.7L | V6 | N/A | Expansion Valve |
| 2005 | Hyundai | XG350 | — | — | N/A | Expansion Valve |
| 2005 | Kia | Optima | — | — | N/A | Expansion Valve |
| 2004 | Hyundai | Sonata | — | — | N/A | Expansion Valve |
| 2004 | Hyundai | XG350 | — | — | N/A | Expansion Valve |
| 2004 | Kia | Optima | — | — | N/A | Expansion Valve |
| 2003 | Hyundai | Sonata | — | — | N/A | Expansion Valve |
| 2003 | Hyundai | XG350 | — | — | N/A | Expansion Valve |
| 2003 | Kia | Optima | — | — | N/A | Expansion Valve |
| 2002 | Hyundai | Sonata | — | — | N/A | Expansion Valve |
| 2002 | Hyundai | XG350 | — | — | N/A | Expansion Valve |
| 2002 | Kia | Magentis | — | — | N/A | Expansion Valve |
| 2002 | Kia | Optima | — | — | N/A | Expansion Valve |
| 2001 | Hyundai | Sonata | — | — | N/A | Expansion Valve |
| 2001 | Hyundai | XG300 | — | — | N/A | Expansion Valve |
| 2001 | Kia | Optima | — | — | N/A | Expansion Valve |
| 2000 | Hyundai | Sonata | — | — | N/A | Expansion Valve |
| 1999 | Hyundai | Sonata | — | — | N/A | Expansion Valve |
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