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Four Seasons 39497 A/C Expansion Valve - Front
| Brand | Four Seasons 39497 |
|---|---|
| Position | Front |
| Color | Aluminum |
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Size IN | 0.4 |
| Liquid Inlet Size MM | 10.15 |
| 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. 10 |
| Liquid Outlet Style | O-Ring |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | O-Ring |
| Lqd Out Size IN | 0.61 |
| Lqd Out Size MM | 15.5 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suc In Size IN | 0.72 |
| Suc In Size MM | 18.3 |
| Suc Out Size IN | 0.72 |
| Suc Out Size MM | 18.3 |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 8 |
| 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. 12 |
| Suction Outlet Style | O-Ring |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | O-Ring |
| Super Heat | -1.000 |
| Switch Included? | Not Included |
| Tonnage | 2.0 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Land Rover · 28 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable service.
Aluminum block type. Lightweight construction with O-ring connections for a secure seal.
R134A compatible. Built for modern refrigerant systems without a solenoid.
Cross-references Dynomax 39497, UAC EX9771C and 217497 for the same application. See all 8.
Four Seasons 39497 Expansion Valve
Four Seasons 39497 is a block-type A/C expansion valve for R134A systems, built with an aluminum body and O-ring connections for controlled refrigerant metering. It is a direct-fit HVAC flow restrictor for select Land Rover Discovery, Range Rover, Range Rover Sport, and Discovery Sport front applications.
Key Features
- Brand: Four Seasons Expansion Valve
- Part number: 39497
- Block-type A/C expansion valve for R134A refrigerant
- Aluminum construction with aluminum finish
- O-ring inlet and outlet sealing surfaces
- Female suction and liquid fittings
- 2 mounting holes
- Style: w/o solenoid
- Meets or exceeds OEM specifications
- 2.0 tonnage rating
Product Details
The Four Seasons Expansion Valve line is built for precise refrigerant control in automotive air conditioning systems. This 39497 valve regulates liquid refrigerant flow into the evaporator, helping maintain proper system balance in R134A-equipped vehicles. It uses female O-ring fittings with No. 6 liquid inlet, No. 10 liquid outlet, No. 8 suction inlet, and No. 12 suction outlet connections, along with a block-type layout for the specified HVAC configuration. This part number 39497 is listed for front-position Land Rover applications including Discovery, Range Rover, Range Rover Sport, and Discovery Sport models.
This part cross-references UAC EX9771C for the same application.
What It Helps Address
- Irregular cabin cooling caused by incorrect refrigerant metering
- Warm air from the vents when the A/C system is underperforming
- Evaporator flow control issues in R134A systems
- Pressure imbalance related to a worn or restricted expansion valve
- Front A/C performance concerns on Land Rover Discovery, Range Rover, Range Rover Sport, and Discovery Sport vehicles
Installation Notes and Tips
Verify the vehicle’s refrigerant type, fitting style, and mounting layout before installation. This valve uses O-ring sealing surfaces and a block-type design, so the mating surfaces should be clean and free of debris before assembly. Confirm the front HVAC application and match the suction and liquid port sizes to the original system configuration. For best results, evacuate and recharge the A/C system according to factory service procedures after replacement.
Quality Assurance
Four Seasons lists this expansion valve as meeting or exceeding OEM requirements. The part is engineered for the specified Land Rover front A/C applications and is built to support proper refrigerant control in R134A systems.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2024 | Land Rover | Discovery | 2.0L | L4 | Front | Solihull Plant Built; Expansion Valve |
| 2023 | Land Rover | Discovery | 2.0L | L4 | Front | Solihull Plant Built; Expansion Valve |
| 2022 | Land Rover | Discovery | 2.0L | L4 | Front | Solihull Plant Built; Expansion Valve |
| 2022 | Land Rover | Range Rover | — | — | Front | Expansion Valve |
| 2022 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
| 2021 | Land Rover | Range Rover | — | — | N/A | Expansion Valve |
| 2021 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
| 2020 | Land Rover | Discovery | — | — | Front | Expansion Valve |
| 2020 | Land Rover | Discovery Sport | — | — | Front | Expansion Valve |
| 2020 | Land Rover | Range Rover | — | — | N/A | Expansion Valve |
| 2020 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
| 2019 | Land Rover | Discovery | — | — | Front | Expansion Valve |
| 2019 | Land Rover | Discovery Sport | — | — | Front | Expansion Valve |
| 2019 | Land Rover | Range Rover | — | — | N/A | Expansion Valve |
| 2019 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
| 2018 | Land Rover | Discovery | — | — | Front | Expansion Valve |
| 2018 | Land Rover | Discovery Sport | — | — | Front | Expansion Valve |
| 2018 | Land Rover | Range Rover | — | — | N/A | Expansion Valve |
| 2018 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
| 2017 | Land Rover | Discovery | — | — | Front | Expansion Valve |
| 2017 | Land Rover | Range Rover | — | — | Front | Expansion Valve |
| 2017 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
| 2016 | Land Rover | Range Rover | — | — | Front | Expansion Valve |
| 2016 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
| 2015 | Land Rover | Range Rover | — | — | Front | Expansion Valve |
| 2015 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
| 2014 | Land Rover | Range Rover | — | — | Front | Expansion Valve |
| 2014 | Land Rover | Range Rover Sport | — | — | Front | Expansion Valve |
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