OE Quality
60-Day Returns

Universal Air EX10735C A/C Expansion Valve
Reliable A/C Expansion Valve for Buick Encore GX and Chevrolet Trailblazer
The Universal Air Block Expansion Valve EX10735C is designed to regulate refrigerant flow in the air conditioning systems of select Buick and Chevrolet models. Engineered for precise performance, this A/C expansion valve helps maintain optimal cooling efficiency in your vehicle's HVAC system.
- Compatible with Buick Encore GX and Chevrolet Trailblazer models
- Part number EX10735C for accurate identification
- Part of the Universal Air Block Expansion Valve product line
- Controls refrigerant flow to ensure consistent A/C system operation
- Designed for HVAC A/C flow restrictor applications
About the Universal Air Block Expansion Valve Product Line
The Block Expansion Valve line from Universal Air focuses on delivering reliable A/C flow restrictors that regulate refrigerant pressure and flow within automotive HVAC systems. This product line is engineered to meet the specific requirements of various vehicle makes and models, including the Buick Encore GX and Chevrolet Trailblazer, ensuring compatibility and system efficiency.
Product Details and Functionality
The EX10735C A/C expansion valve plays a critical role in your vehicle’s air conditioning system by controlling the amount of refrigerant entering the evaporator. This regulation is essential for maintaining proper cooling performance and preventing system issues such as freezing or insufficient cooling. Designed specifically for Buick Encore GX and Chevrolet Trailblazer models, this valve ensures that the HVAC system operates within manufacturer specifications.
Common Issues Addressed by This Expansion Valve
- Inconsistent or weak air conditioning cooling
- Refrigerant flow irregularities causing system inefficiency
- Evaporator freezing due to improper refrigerant regulation
- HVAC system pressure imbalances
- Reduced overall A/C system performance
Installation Notes and Tips
When installing the Universal Air Block Expansion Valve EX10735C, ensure the vehicle is compatible by verifying the make and model—Buick Encore GX or Chevrolet Trailblazer. Proper handling of refrigerant lines and adherence to HVAC system service procedures are essential. It is recommended to have the installation performed by a qualified technician to maintain system integrity and safety.
Quality Assurance and Warranty
Universal Air manufactures the EX10735C expansion valve to meet industry standards for durability and performance. While specific warranty details are not provided, Universal Air products typically undergo quality control testing to ensure reliable operation within the specified vehicle applications.
This part fits 5 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2021 | Buick | Encore GX | Select | N/A | Block Expansion Valve |
| 2021 | Buick | Encore GX | Essence | N/A | Block Expansion Valve |
| 2021 | Buick | Encore GX | Preferred | N/A | Block Expansion Valve |
| 2021 | Chevrolet | Trailblazer | N/A | Block Expansion Valve | |
| 2020 | Buick | Encore GX | N/A | Block Expansion Valve |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.