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Four Seasons 39397 A/C Expansion Valve
| Brand | Four Seasons 39397 |
|---|---|
| Material | Aluminum |
| Color | Aluminum |
| Refrigerant Type | R134a |
| Type | Block type |
| Mounting Hole Quantity | 2 |
| Suction Inlet Fitting Gender | Female |
| Suction Outlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 8 |
| Suction Outlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Thread Type | 3/4" - 18 |
| Suction Outlet Thread Type | 7/8" - 18 |
| Liquid Inlet Fitting Gender | Female |
| Liquid Outlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Outlet Fitting Thread Diameter | No. 8 |
| Liquid Inlet Thread Type | 5/8 - 18 |
| Liquid Outlet Thread Type | 3/4" - 18 |
| Description | Expansion valves |
| Liquid Inlet Style | Female insert o-ring |
| Liquid Outlet Style | Female insert o-ring |
| Meets / Exceeds OEM? | Yes |
| O-Ring A Number/Desc | [24606] / green o-ring |
| O-Ring A Quantity | 1 |
| O-Ring B Number/Desc | [24608] / green o-ring |
| O-Ring B Quantity | 2 |
| O-Ring C Number/Desc | [24610] / green o-ring |
| O-Ring C Quantity | 1 |
| Style | W/o solenoid |
| Suction Inlet Style | Female insert o-ring |
| Suction Outlet Style | Female insert o-ring |
| Fits | — |
OE direct replacement. Meets or exceeds OEM requirements for dependable A/C flow control.
Aluminum construction. Lightweight material helps resist corrosion in the A/C system.
Block type design. Female insert O-ring fittings support a secure, leak-resistant seal.
Cross-references Four Seasons 39397, Global Parts Distributors LLC 1814002 and Global Parts Distributors LLC 1814007 for the same application. See all 18.
Four Seasons 39397 Expansion Valve Overview
Four Seasons 39397 is a block-type A/C expansion valve for R134A systems. Built from aluminum and engineered to meet or exceed OEM requirements, it regulates refrigerant flow to help maintain proper evaporator performance in the HVAC system.
For buyers searching for an A/C expansion valve for Honda Civic or Toyota Corolla applications, this Four Seasons expansion valve is a direct-fit style service part for R134A-equipped systems that use the listed port and thread configurations.
Key Features
- Brand: Four Seasons Expansion Valve
- Part number: 39397
- Block-type A/C expansion valve
- Aluminum construction with aluminum finish
- R134A refrigerant type
- Female insert O-ring liquid and suction connections
- Meets or exceeds OEM specifications
- Designed without a solenoid
- Super heat setting: 5.500
- Tonnage: 1.500
Product Details
Four Seasons 39397 is an HVAC flow restrictor used to meter refrigerant into the evaporator based on system demand. The block-style design, female inlet and outlet fittings, and specified thread sizes support accurate replacement in applications that call for No. 8 and No. 10 suction connections and No. 6 and No. 8 liquid connections. If you are sourcing an A/C expansion valve for Honda Civic or Toyota Corolla service work, this part number 39397 provides an OEM-style replacement path for R134A systems.
This part cross-references UAC EX33412C for the same application.
What It Helps Address
- Incorrect refrigerant metering at the evaporator
- Weak or inconsistent cabin cooling
- Improper A/C system pressure balance
- Expansion valve replacement during HVAC service
- R134A system repair on vehicles using a block-type valve
Installation Notes
Verify the refrigerant type, fitting style, thread diameters, and mounting hole count before installation. Replace the O-rings with the correct green O-ring sizes specified for the system, and evacuate and recharge the A/C system according to factory service procedures after installation. Confirm the valve orientation and line routing match the original component before tightening connections.
Quality Assurance
Four Seasons positions this expansion valve as an OEM-level replacement part that meets or exceeds original equipment requirements. The aluminum construction and application-specific fitment details support consistent service replacement for HVAC repairs.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| No rows match your filter. | ||||