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Four Seasons 39557 A/C Expansion Valve
| Brand | Four Seasons 39557 |
|---|---|
| Color | Aluminum |
| 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 | Female Insert O-Ring |
| Liquid Inlet Thread Type | Not Threaded |
| Liquid Inlet Type | O-Ring |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 10 |
| Liquid Outlet Style | Female Insert O-Ring |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | O-Ring |
| Lqd Out Size IN | 0.650 |
| Lqd Out Size MM | 16.4 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suc In Size IN | 0.650 |
| Suc In Size MM | 16.4 |
| Suc Out Size IN | 0.65 |
| Suc Out Size MM | 16.4 |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | Female Insert 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 | Female Insert O-Ring |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | O-Ring |
| Super Heat | -9.0 |
| Switch Included? | Not Included |
| Tonnage | 1.5 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Genesis and Hyundai · 10 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable system performance.
Aluminum construction. Lightweight material helps resist corrosion in demanding HVAC service.
Block type design. Compact expansion valve layout for efficient refrigerant flow control.
Cross-references Four Seasons 39557, 217557 and 759767 for the same application. See all 7.
Four Seasons 39557 Expansion Valve Overview
Four Seasons 39557 is a block-type A/C expansion valve for R134A systems. Built from aluminum and configured as a non-solenoid valve, it regulates refrigerant flow to support proper evaporator performance in select Hyundai, Genesis, and Kia applications.
This Four Seasons Expansion Valve line focuses on OE-style HVAC flow control for service repairs where accurate refrigerant metering matters. Part number 39557 is a direct-fit style replacement for vehicles such as the Hyundai Genesis, Hyundai Equus, Genesis G80, Genesis G90, and Kia Stinger.
Key Features
- Block-type A/C expansion valve for R134A refrigerant systems
- Aluminum construction with aluminum finish
- Female insert O-ring inlet and outlet connections
- Liquid inlet size: 9 mm; liquid outlet size: 16.4 mm
- Suction inlet and outlet size: 16.4 mm
- 2 mounting holes for secure installation
- Meets or exceeds OEM requirements
- Super heat setting: -9.0
- Style: without solenoid
Detailed Description
Four Seasons 39557 is an A/C expansion valve designed to meter refrigerant into the evaporator with the correct flow characteristics for the listed vehicle applications. The block-style aluminum body uses female insert O-ring fittings on both the liquid and suction sides, helping maintain a proper seal in R134A HVAC systems. This part number 39557 is specified for select 2015-2016 Hyundai Genesis, 2015-2016 Hyundai Equus, 2017-2019 Genesis G90, 2017 Genesis G80, 2018 Genesis G80 to 6/23/17, and 2023 Kia Stinger applications.
This part cross-references A17557 and 217557 for the same application.
What It Helps Address
- Weak or inconsistent cabin cooling
- Incorrect refrigerant metering at the evaporator
- HVAC performance issues caused by a worn expansion valve
- Temperature fluctuations during A/C operation
- Service replacement needs on R134A systems
Installation Notes and Tips
Verify the vehicle’s refrigerant type, fitting style, and mounting layout before installation. Confirm the application by model year and note that 2018 Genesis G80 coverage applies to vehicles built to 6/23/17. Replace seals and evacuate and recharge the system according to OEM service procedures after installation. Use the listed O-ring connection sizes and mounting hole count to match the original HVAC configuration.
Quality Assurance
Four Seasons 39557 is listed as meeting or exceeding OEM specifications for the covered applications. It is engineered for direct replacement use in compatible Hyundai Genesis, Hyundai Equus, Genesis G80, Genesis G90, and Kia Stinger HVAC systems.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2023 | Kia | Stinger | 2.5L | L4 | N/A | Expansion Valve |
| 2019 | Genesis | G90 | — | — | N/A | Expansion Valve |
| 2018 | Genesis | G80 | — | — | N/A | To 6/23/17; Expansion Valve |
| 2018 | Genesis | G90 | — | — | N/A | Expansion Valve |
| 2017 | Genesis | G80 | — | — | N/A | Expansion Valve |
| 2017 | Genesis | G90 | — | — | N/A | Expansion Valve |
| 2016 | Hyundai | Equus | — | — | N/A | Expansion Valve |
| 2016 | Hyundai | Genesis | — | — | N/A | Expansion Valve |
| 2015 | Hyundai | Equus | — | — | N/A | Expansion Valve |
| 2015 | Hyundai | Genesis | — | — | N/A | Expansion Valve |
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