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Four Seasons 39543 A/C Expansion Valve
Reliable A/C Expansion Valve for Chevrolet Impala Models
The Four Seasons Expansion Valve 39543 is engineered to regulate refrigerant flow in the air conditioning system of Chevrolet Impala and Impala Limited vehicles. Designed with durable aluminum construction, this block-type valve ensures consistent performance with R134a refrigerant compatibility.
Key Features of Four Seasons Expansion Valve 39543
- Constructed from corrosion-resistant aluminum for durability
- Compatible with R134a refrigerant systems
- Block type design with two mounting holes for secure installation
- Female suction and liquid inlet/outlet fittings with sealing washer style
- Meets or exceeds OEM specifications for Chevrolet Impala and Impala Limited
- Designed without solenoid for straightforward operation
Detailed Product Description
This Four Seasons Expansion Valve from the Expansion Valve product line is specifically designed to control the flow of refrigerant in the A/C system of Chevrolet Impala and Impala Limited models. The valve features female suction inlet and outlet fittings with No. 10 thread diameter, and female liquid inlet and outlet fittings with No. 6 and No. 8 thread diameters respectively, all utilizing sealing washer styles to ensure leak-free connections. The block-type aluminum construction provides reliable heat transfer and corrosion resistance, essential for maintaining optimal air conditioning performance. The valve is compatible with R134a refrigerant, the standard for many modern vehicles, and is designed without a solenoid, simplifying the system's mechanical operation.
Common Applications and Issues Addressed
- Regulates refrigerant flow to maintain proper cooling efficiency
- Prevents compressor damage caused by improper refrigerant pressure
- Eliminates inconsistent cabin temperatures due to faulty expansion valves
- Resolves A/C system leaks related to worn or damaged valve fittings
- Restores proper air conditioning function in Chevrolet Impala and Impala Limited vehicles
Installation Notes and Tips
- Ensure compatibility with Chevrolet Impala or Impala Limited before installation
- Use proper sealing washers on liquid inlet and outlet fittings to prevent leaks
- Verify that the refrigerant type is R134a for system compatibility
- Check mounting holes and secure valve firmly using the two provided points
- Consult vehicle service manual for specific installation procedures and torque specifications
Quality Assurance and Warranty
The Four Seasons Expansion Valve 39543 meets or exceeds OEM standards, ensuring reliable performance and durability. Manufactured with precision aluminum components and designed for direct fitment on Chevrolet Impala and Impala Limited models, this valve supports long-term A/C system functionality. Warranty details should be confirmed with the product documentation or manufacturer.
| Brand | Four Seasons |
|---|---|
| Part Number | 39543 |
| Position | Expansion Valve |
| Color | Aluminum |
| Description | Expansion Valves |
| Liquid Inlet Fitting Gender | Female |
| Liquid Inlet Fitting Thread Diameter | No. 6 |
| Liquid Inlet Size IN | 0.34 |
| Liquid Inlet Size MM | 8.6 |
| 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 |
| Lqd Out Size IN | 0.46 |
| Lqd Out Size MM | 11.8 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 2 |
| Refrigerant Type | R134A |
| Style | w/o Solenoid |
| Suc In Size IN | 0.63 |
| Suc In Size MM | 16 |
| Suc Out Size IN | 0.700 |
| Suc Out Size MM | 17.7 |
| 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. 10 |
| Suction Outlet Style | Sealing Washer |
| Suction Outlet Thread Type | Not Threaded |
| Suction Outlet Type | Sealing Washer |
| Super Heat | -4.0 |
| Switch Included? | Not Included |
| Tonnage | 1 |
| Type | Block Type |
This part fits 9 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2020 | Chevrolet | Impala | N/A | w/ R134a; Expansion Valve | |||
| 2019 | Chevrolet | Impala | 3.6L | V6 | N/A | w/ R134a; Expansion Valve | |
| 2018 | Chevrolet | Impala | N/A | Expansion Valve | |||
| 2017 | Chevrolet | Impala | 2.5L | L4 | GAS | N/A | Expansion Valve |
| 2017 | Chevrolet | Impala | 2.5L | L4 | FLEX | N/A | Expansion Valve |
| 2017 | Chevrolet | Impala | 3.6L | V6 | FLEX | N/A | Expansion Valve |
| 2017 | Chevrolet | Impala | 3.6L | V6 | BI-FUEL | N/A | Expansion Valve |
| 2016 | Chevrolet | Impala | N/A | Expansion Valve | |||
| 2016 | Chevrolet | Impala Limited | N/A | Expansion Valve |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.