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Four Seasons 39597 A/C Expansion Valve
| Brand | Four Seasons 39597 |
|---|---|
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Style | Sealing Washer |
| Liquid Inlet Thread Type | Not Threaded |
| Liquid Inlet Type | Sealing Washer |
| Liquid Outlet Fitting Gender | Female |
| Liquid Outlet Fitting Thread Diameter | No. 8 |
| Liquid Outlet Style | Sealing Washer |
| Liquid Outlet Thread Type | Not Threaded |
| Liquid Outlet Type | Sealing Washer |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suction Inlet Fitting Gender | Female |
| Suction Inlet Fitting Thread Diameter | No. 10 |
| Suction Inlet Style | Sealing Washer |
| Suction Inlet Thread Type | Not Threaded |
| Suction Inlet Type | Sealing Washer |
| Suction Outlet Fitting Gender | Female |
| Suction Outlet Fitting Thread Diameter | No. 12 |
| Suction Outlet Style | Sealing Washer |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | Sealing Washer |
| Super Heat | 6.0 |
| Switch Included? | Not Included |
| Tonnage | 1 |
| Type | Block Type |
| Product line | Expansion Valve |
| Fits | Chevrolet and Buick · 14 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable service.
Aluminum construction. Resists corrosion in demanding A/C systems.
Block type design. Provides precise refrigerant flow control.
Cross-references Four Seasons 39597, UAC EX10565C and UAC EX10567C for the same application. See all 8.
Four Seasons 39597 Expansion Valve
The Four Seasons 39597 A/C expansion valve is a block-type HVAC flow restrictor built for R134A systems. It meters refrigerant flow into the evaporator to help maintain stable cooling performance in supported Chevrolet and Buick applications.
Key Features
- Block-type A/C expansion valve for R134A refrigerant systems
- Aluminum construction
- Female suction and liquid fittings with sealing washer connections
- 2 mounting holes for direct HVAC service replacement
- Super heat setting: 6.0
- Meets or exceeds OEM requirements
- Style: without solenoid
Product Details
Four Seasons Expansion Valve 39597 is an OE-style replacement part for HVAC service on select Chevrolet Blazer, Chevrolet Cruze, Chevrolet Volt, and Buick Cascada models. This expansion valve regulates refrigerant entering the evaporator, helping the air conditioning system maintain proper pressure drop and refrigerant metering. It uses aluminum construction, female inlet and outlet connections, and sealing washer-style ports for the suction and liquid lines. This part cross-references UAC (e.g., EX10565C, EX10567C) for the same application.
Vehicle Fitment
- Fits 2019-2023 Chevrolet Blazer, N/A
- Fits 2016-2019 Buick Cascada, N/A
- Fits 2016-2019 Chevrolet Cruze, N/A
- Fits 2016 Chevrolet Volt, N/A
Common Issues This Part Can Address
- Weak or inconsistent cabin cooling
- Improper refrigerant metering at the evaporator
- A/C performance loss after HVAC service
- Restriction-related pressure imbalance in the system
- Expansion valve wear or contamination in R134A systems
Installation Notes
Verify refrigerant type, port style, and line connection sizes before installation. This valve is configured for R134A systems and uses No. 10 suction inlet, No. 12 suction outlet, No. 6 liquid inlet, and No. 8 liquid outlet thread diameters with non-threaded sealing washer interfaces. Confirm the vehicle application and HVAC layout for the Chevrolet Blazer, Chevrolet Cruze, Chevrolet Volt, or Buick Cascada before service.
Quality Assurance
Four Seasons 39597 is built to meet or exceed OEM specifications for the listed applications. The aluminum block-type design and OE-style connection layout support accurate replacement during A/C system repair.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2023 | Chevrolet | Blazer | — | — | N/A | Expansion Valve |
| 2022 | Chevrolet | Blazer | — | — | N/A | Expansion Valve |
| 2021 | Chevrolet | Blazer | — | — | N/A | Expansion Valve |
| 2020 | Chevrolet | Blazer | — | — | N/A | Expansion Valve |
| 2019 | Buick | Cascada | — | — | N/A | Expansion Valve |
| 2019 | Chevrolet | Blazer | — | — | N/A | Expansion Valve |
| 2019 | Chevrolet | Cruze | — | — | N/A | Expansion Valve |
| 2018 | Buick | Cascada | — | — | N/A | Expansion Valve |
| 2018 | Chevrolet | Cruze | — | — | N/A | Expansion Valve |
| 2017 | Buick | Cascada | — | — | N/A | Expansion Valve |
| 2017 | Chevrolet | Cruze | — | — | N/A | Expansion Valve |
| 2016 | Buick | Cascada | — | — | N/A | Expansion Valve |
| 2016 | Chevrolet | Cruze | 1.4L | L4 | N/A | Expansion Valve |
| 2016 | Chevrolet | Volt | — | — | N/A | Expansion Valve |
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