OE Quality
60-Day Returns

Global Parts 4711990 A/C Evaporator Core - Front
Reliable A/C Evaporator Core for Chevrolet, GMC, and Oldsmobile
The Global Parts A/C Evaporator Core 4711990 is designed to restore efficient cooling performance in select Chevrolet, GMC, and Oldsmobile vehicles. This replacement part is compatible with models such as the Chevrolet Trailblazer, GMC Envoy, and Oldsmobile Bravada, ensuring a precise fit and reliable operation.
- Direct replacement A/C evaporator core for specific GM SUVs
- Compatible with Chevrolet Bravada, Trailblazer, and Trailblazer EXT
- Fits GMC Envoy and Envoy XL models
- Part number 4711990 for accurate identification
- Manufactured by Global Parts for consistent quality
Product Details and Compatibility
This A/C evaporator core is engineered to meet the original equipment specifications for Chevrolet, GMC, and Oldsmobile vehicles listed. The part number 4711990 corresponds to a core designed to fit the HVAC system of the Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy and Envoy XL, as well as the Oldsmobile Bravada. Installing this evaporator core helps maintain the vehicle’s air conditioning system efficiency by properly absorbing heat from the cabin air and enabling effective cooling.
Common Issues Addressed by This Evaporator Core
- Reduced cooling performance or warm air from vents
- Leaks or moisture buildup inside the HVAC system
- Unpleasant odors caused by mold or mildew in the evaporator
- Clogged or damaged evaporator fins affecting airflow
- System pressure imbalances leading to compressor strain
Installation Notes and Tips
- Ensure compatibility by verifying vehicle make, model, and year before installation
- Professional installation is recommended due to HVAC system complexity
- Inspect and replace the receiver/drier or accumulator when replacing the evaporator core
- Evacuate and recharge the A/C system with proper refrigerant after installation
- Check for leaks and proper airflow post-installation to confirm system integrity
Quality Assurance and Warranty Information
Global Parts manufactures this A/C evaporator core to meet industry standards for durability and performance. The part number 4711990 undergoes quality control to ensure it fits and functions as intended in Chevrolet, GMC, and Oldsmobile vehicles. Warranty coverage details should be confirmed with the distributor or installer, as they may vary based on purchase and installation conditions.
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Chevrolet | Trailblazer | 4.2L | L6 | Front | |
| 2002 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Front | |
| 2002 | GMC | Envoy | 4.2L | L6 | Front | |
| 2002 | GMC | Envoy XL | 4.2L | L6 | Front | |
| 2002 | Oldsmobile | Bravada | 4.2L | L6 | Front |
* 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.