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Global Parts 8231671 HVAC Heater Core - Rear
Overview of Global Parts HVAC Heater Core 8231671
The Global Parts HVAC Heater Core 8231671 is designed specifically for select Buick, Chevrolet, and GMC models. Engineered with durable aluminum, this heater core ensures reliable heat transfer and long-lasting performance for your vehicle's heating system.
- Specific fitment for Buick Envoy, Envoy XL, Envoy XUV, Chevrolet Trailblazer, Trailblazer EXT, GMC Rainier
- Constructed from corrosion-resistant aluminum material
- Non-adjustable pipe positioning for direct replacement
- Part number 8231671 for precise identification
Durable Aluminum Construction for Efficient Heating
This HVAC heater core is made from aluminum, a material known for its excellent thermal conductivity and resistance to corrosion. The aluminum construction helps maintain efficient heat exchange within the heating system of your Buick Envoy or Chevrolet Trailblazer. The part is designed with fixed pipe positioning, matching the original equipment specifications to simplify installation and ensure proper fitment.
Compatible Vehicles and Fitment Details
The Global Parts heater core 8231671 is specifically compatible with the following vehicles: Buick Envoy, Envoy XL, Envoy XUV; Chevrolet Trailblazer, Trailblazer EXT; and GMC Rainier. This specific fitment ensures that the heater core integrates seamlessly with the HVAC system of these models, maintaining optimal heating performance.
Common Issues Addressed by This Heater Core
- Insufficient cabin heat due to clogged or leaking heater core
- Coolant leaks inside the vehicle cabin
- Fogging or moisture buildup on windows from heater core failure
- Overheating engine caused by compromised heater core function
- Unpleasant odors from coolant leaks within the HVAC system
Installation Notes and Tips
Installation of the Global Parts heater core 8231671 requires removal of the dashboard and HVAC housing in the specified Buick, Chevrolet, or GMC models. Since the pipe positioning is fixed, no adjustments are necessary, which helps reduce installation complexity. It is recommended to flush the cooling system and replace any worn hoses during installation to ensure optimal performance and longevity.
Quality Assurance and Warranty Information
Global Parts provides this heater core with quality standards that meet or exceed OEM specifications. The aluminum material offers durability and resistance to corrosion, contributing to a longer service life. Please refer to Global Parts' warranty policy for specific coverage details related to part number 8231671.
This part fits 59 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | 5.3L | V8 | Rear | |
| 2009 | Chevrolet | Trailblazer | 6.0L | V8 | Rear | |
| 2009 | Chevrolet | Trailblazer | 4.2L | L6 | Rear | |
| 2009 | GMC | Envoy | 4.2L | L6 | Rear | |
| 2009 | GMC | Envoy | 5.3L | V8 | Rear | |
| 2008 | Chevrolet | Trailblazer | 5.3L | V8 | Rear | |
| 2008 | Chevrolet | Trailblazer | 6.0L | V8 | Rear | |
| 2008 | Chevrolet | Trailblazer | 4.2L | L6 | Rear | |
| 2008 | GMC | Envoy | 4.2L | L6 | Rear | |
| 2008 | GMC | Envoy | 5.3L | V8 | Rear | |
| 2007 | Buick | Rainier | 5.3L | V8 | Rear | |
| 2007 | Buick | Rainier | 4.2L | L6 | Rear | |
| 2007 | Chevrolet | Trailblazer | 5.3L | V8 | Rear | |
| 2007 | Chevrolet | Trailblazer | 6.0L | V8 | Rear | |
| 2007 | Chevrolet | Trailblazer | 4.2L | L6 | Rear | |
| 2007 | GMC | Envoy | 4.2L | L6 | Rear | |
| 2007 | GMC | Envoy | 5.3L | V8 | Rear | |
| 2006 | Buick | Rainier | 5.3L | V8 | Rear | |
| 2006 | Buick | Rainier | 4.2L | L6 | Rear | |
| 2006 | Chevrolet | Trailblazer | 5.3L | V8 | Rear | |
| 2006 | Chevrolet | Trailblazer | 6.0L | V8 | Rear | |
| 2006 | Chevrolet | Trailblazer | 4.2L | L6 | Rear | |
| 2006 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Rear | |
| 2006 | Chevrolet | Trailblazer EXT | 5.3L | V8 | Rear | |
| 2006 | GMC | Envoy | 4.2L | L6 | Rear | |
| 2006 | GMC | Envoy | 5.3L | V8 | Rear | |
| 2006 | GMC | Envoy XL | 5.3L | V8 | Rear | |
| 2006 | GMC | Envoy XL | 4.2L | L6 | Rear | |
| 2005 | Buick | Rainier | 5.3L | V8 | Rear | |
| 2005 | Buick | Rainier | 4.2L | L6 | Rear | |
| 2005 | Chevrolet | Trailblazer | 4.2L | L6 | Rear | |
| 2005 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Rear | |
| 2005 | Chevrolet | Trailblazer EXT | 5.3L | V8 | Rear | |
| 2005 | GMC | Envoy | 4.2L | L6 | Rear | |
| 2005 | GMC | Envoy | 5.3L | V8 | Rear | |
| 2005 | GMC | Envoy XL | 5.3L | V8 | Rear | |
| 2005 | GMC | Envoy XL | 4.2L | L6 | Rear | |
| 2005 | GMC | Envoy XUV | 4.2L | L6 | Rear | |
| 2005 | GMC | Envoy XUV | 5.3L | V8 | Rear | |
| 2004 | Buick | Rainier | 5.3L | V8 | Rear | |
| 2004 | Buick | Rainier | 4.2L | L6 | Rear | |
| 2004 | Chevrolet | Trailblazer | 4.2L | L6 | Rear | |
| 2004 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Rear | |
| 2004 | Chevrolet | Trailblazer EXT | 5.3L | V8 | Rear | |
| 2004 | GMC | Envoy | 4.2L | L6 | Rear | |
| 2004 | GMC | Envoy XL | 5.3L | V8 | Rear | |
| 2004 | GMC | Envoy XL | 4.2L | L6 | Rear | |
| 2004 | GMC | Envoy XUV | 4.2L | L6 | Rear | |
| 2004 | GMC | Envoy XUV | 5.3L | V8 | Rear | |
| 2003 | Chevrolet | Trailblazer | 4.2L | L6 | Rear | |
| 2003 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Rear | |
| 2003 | Chevrolet | Trailblazer EXT | 5.3L | V8 | Rear | |
| 2003 | GMC | Envoy | 4.2L | L6 | Rear | |
| 2003 | GMC | Envoy XL | 5.3L | V8 | Rear | |
| 2003 | GMC | Envoy XL | 4.2L | L6 | Rear | |
| 2002 | Chevrolet | Trailblazer | 4.2L | L6 | Rear | |
| 2002 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Rear | |
| 2002 | GMC | Envoy | 4.2L | L6 | Rear | |
| 2002 | GMC | Envoy XL | 4.2L | L6 | Rear |
* 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.