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Global Parts 8231643 HVAC Heater CoreOE Quality 60-Day Returns
Part #: 8231643

Global Parts 8231643 HVAC Heater Core

⚙️ 149 vehicles fit this part
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Cheyenne, Silverado 1500, Silverado 1500 LD, Silverado 2500 HD, Silverado 3500 HD, Sierra, Sierra 1500, Sierra 1500 Limited, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500, and Silverado 3500
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Overview of Global Parts HVAC Heater Core 8231643

The Global Parts HVAC Heater Core 8231643 is designed specifically for select Cadillac, Chevrolet, and GMC models. Constructed from durable aluminum, this heater core ensures reliable heat transfer and long-lasting performance in your vehicle's HVAC system.

  • Specific fitment for Cadillac, Chevrolet, and GMC trucks and SUVs
  • Made from corrosion-resistant aluminum material
  • Non-adjustable pipe positioning for precise OEM replacement
  • Part number 8231643 for accurate identification

Detailed Product Description

This HVAC heater core from Global Parts is engineered to meet the exact specifications of your vehicle’s original equipment. The aluminum construction provides efficient heat exchange while resisting corrosion, which is critical for maintaining consistent cabin heating. The part is designed with fixed pipe positioning, matching the original layout to ensure straightforward installation without modification. This heater core is compatible with a range of models including the Chevrolet Silverado 1500, Sierra 2500 HD, Cadillac Escalade ESV, GMC Yukon, and others, making it a reliable replacement component for your HVAC system.

Compatible Vehicles and Applications

This heater core is specifically compatible with the following makes and models:

  • Cadillac Escalade ESV
  • Chevrolet Cheyenne, Silverado 1500, Silverado 1500 LD, Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 HD, Suburban 3500 HD, Tahoe
  • GMC Sierra, Sierra 1500, Sierra 1500 Limited, Sierra 2500 HD, Sierra 3500 HD, Yukon

Common Issues Addressed by This Heater Core

  • Insufficient cabin heat during cold weather
  • Coolant leaks inside the vehicle’s HVAC system
  • Overheating due to clogged or damaged heater core
  • Unpleasant odors caused by coolant contamination
  • Reduced HVAC system efficiency and airflow problems

Installation Notes and Tips

Installation of the Global Parts heater core 8231643 requires careful handling to avoid damage to the aluminum core and associated pipes. Since the pipe positioning is fixed, ensure compatibility with your vehicle’s HVAC housing before installation. It is recommended to flush the cooling system and replace any worn hoses or seals during installation to prevent future leaks. Professional installation is advised for optimal fit and function.

Quality Assurance and Warranty

Global Parts provides this heater core with quality standards that meet OEM specifications. The aluminum material offers durability and corrosion resistance to extend service life. While specific warranty details may vary, Global Parts typically supports their components with a limited warranty against defects in materials and workmanship. Refer to the product documentation for exact warranty terms.

This part fits 149 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020CadillacEscalade ESV6.2LV8Front
2020ChevroletTahoeFront
2020GMCYukonFront
2020GMCYukon XLFront
2019CadillacEscalade ESV6.2LV8Front
2019ChevroletCheyenne6.2LV8N/A
2019ChevroletCheyenne5.3LV8N/A
2019ChevroletSilverado 15006.2LV8N/A
2019ChevroletSilverado 15005.3LV8N/A
2019ChevroletSilverado 15002.7LL4N/A
2019ChevroletSilverado 15004.3LV6N/A
2019ChevroletSilverado 1500 LD5.3LV8N/A
2019ChevroletSilverado 2500 HD6.6LV8N/A
2019ChevroletSilverado 2500 HD6.0LV8N/A
2019ChevroletSilverado 3500 HD6.0LV8N/A
2019ChevroletSilverado 3500 HD6.6LV8N/A
2019ChevroletSuburban 3500 HD6.0LV8Front
2019ChevroletTahoeFront
2019GMCSierra6.2LV8N/A
2019GMCSierra5.3LV8N/A
2019GMCSierra 15004.3LV6N/A
2019GMCSierra 15002.7LL4N/A
2019GMCSierra 15006.2LV8N/A
2019GMCSierra 15005.3LV8N/A
2019GMCSierra 1500 Limited5.3LV8N/A
2019GMCSierra 2500 HD6.0LV8N/A
2019GMCSierra 2500 HD6.6LV8N/A
2019GMCSierra 3500 HD6.6LV8N/A
2019GMCSierra 3500 HD6.0LV8N/A
2019GMCYukonFront
2019GMCYukon XLFront
2018ChevroletCheyenne6.2LV8N/A
2018ChevroletCheyenne5.3LV8N/A
2018ChevroletSilverado 15006.2LV8N/A
2018ChevroletSilverado 15005.3LV8N/A
2018ChevroletSilverado 15004.3LV6N/A
2018ChevroletSilverado 25005.3LV8N/A
2018ChevroletSilverado 2500 HD6.6LV8N/A
2018ChevroletSilverado 2500 HD6.0LV8N/A
2018ChevroletSilverado 35006.0LV8N/A
2018ChevroletSilverado 3500 HD6.0LV8N/A
2018ChevroletSilverado 3500 HD6.6LV8N/A
2018ChevroletSuburban 3500 HD6.0LV8Front
2018ChevroletTahoeFront
2018GMCSierra6.2LV8N/A
2018GMCSierra5.3LV8N/A
2018GMCSierra 15004.3LV6N/A
2018GMCSierra 15006.2LV8N/A
2018GMCSierra 15005.3LV8N/A
2018GMCSierra 2500 HD6.0LV8N/A
2018GMCSierra 2500 HD6.6LV8N/A
2018GMCSierra 3500 HD6.6LV8N/A
2018GMCSierra 3500 HD6.0LV8N/A
2018GMCYukonFront
2018GMCYukon XLFront
2017ChevroletCheyenne6.2LV8N/A
2017ChevroletCheyenne5.3LV8N/A
2017ChevroletSilverado 15006.2LV8N/A
2017ChevroletSilverado 15005.3LV8N/A
2017ChevroletSilverado 15004.3LV6N/A
2017ChevroletSilverado 25005.3LV8N/A
2017ChevroletSilverado 25004.3LV6N/A
2017ChevroletSilverado 2500 HD6.6LV8N/A
2017ChevroletSilverado 2500 HD6.0LV8N/A
2017ChevroletSilverado 35006.0LV8N/A
2017ChevroletSilverado 3500 HD6.0LV8N/A
2017ChevroletSilverado 3500 HD6.6LV8N/A
2017ChevroletSuburban 3500 HD6.0LV8Front
2017ChevroletTahoeFront
2017GMCSierra6.2LV8N/A
2017GMCSierra5.3LV8N/A
2017GMCSierra 15004.3LV6N/A
2017GMCSierra 15006.2LV8N/A
2017GMCSierra 15005.3LV8N/A
2017GMCSierra 2500 HD6.0LV8N/A
2017GMCSierra 2500 HD6.6LV8N/A
2017GMCSierra 3500 HD6.6LV8N/A
2017GMCSierra 3500 HD6.0LV8N/A
2017GMCYukonFront
2017GMCYukon XLFront
2016ChevroletCheyenne6.2LV8N/A
2016ChevroletCheyenne5.3LV8N/A
2016ChevroletSilverado 15004.3LV6GASN/A
2016ChevroletSilverado 15005.3LV8GASN/A
2016ChevroletSilverado 15006.2LV8N/A
2016ChevroletSilverado 15005.3LV8FLEXN/A
2016ChevroletSilverado 15004.3LV6FLEXN/A
2016ChevroletSilverado 25005.3LV8N/A
2016ChevroletSilverado 2500 HD6.6LV8N/A
2016ChevroletSilverado 2500 HD6.0LV8N/A
2016ChevroletSilverado 35006.0LV8N/A
2016ChevroletSilverado 3500 HD6.0LV8N/A
2016ChevroletSilverado 3500 HD6.6LV8N/A
2016ChevroletSuburban 3500 HD6.0LV8Front
2016ChevroletTahoeFront
2016GMCSierra6.2LV8N/A
2016GMCSierra5.3LV8N/A
2016GMCSierra 15005.3LV8FLEXN/A
2016GMCSierra 15004.3LV6N/A
2016GMCSierra 15005.3LV8GASN/A
2016GMCSierra 15006.2LV8N/A
2016GMCSierra 2500 HD6.0LV8N/A
2016GMCSierra 2500 HD6.6LV8N/A
2016GMCSierra 3500 HD6.6LV8N/A
2016GMCSierra 3500 HD6.0LV8N/A
2016GMCYukonFront
2016GMCYukon XLFront
2015ChevroletCheyenne6.2LV8N/A
2015ChevroletCheyenne5.3LV8N/A
2015ChevroletSilverado 15006.2LV8N/A
2015ChevroletSilverado 15005.3LV8N/A
2015ChevroletSilverado 15004.3LV6N/A
2015ChevroletSilverado 25005.3LV8N/A
2015ChevroletSilverado 2500 HD6.6LV8N/A
2015ChevroletSilverado 2500 HD6.0LV8N/A
2015ChevroletSilverado 35006.0LV8N/A
2015ChevroletSilverado 3500 HD6.0LV8N/A
2015ChevroletSilverado 3500 HD6.6LV8N/A
2015ChevroletTahoeFront
2015GMCSierra6.2LV8N/A
2015GMCSierra5.3LV8N/A
2015GMCSierra 15004.3LV6N/A
2015GMCSierra 15006.2LV8N/A
2015GMCSierra 15005.3LV8N/A
2015GMCSierra 2500 HD6.0LV8N/A
2015GMCSierra 2500 HD6.6LV8N/A
2015GMCSierra 3500 HD6.6LV8N/A
2015GMCSierra 3500 HD6.0LV8N/A
2015GMCYukonFront
2015GMCYukon XLFront
2014ChevroletCheyenne6.2LV8N/A
2014ChevroletCheyenne5.3LV8N/A
2014ChevroletSilverado 15006.2LV8N/A
2014ChevroletSilverado 15005.3LV8N/A
2014ChevroletSilverado 15004.3LV6N/A
2014ChevroletSilverado 25005.3LV8N/A
2014ChevroletSilverado 2500 HD6.6LV8N/A
2014ChevroletSilverado 2500 HD6.0LV8N/A
2014ChevroletSilverado 3500 HD6.0LV8N/A
2014ChevroletSilverado 3500 HD6.6LV8N/A
2014GMCSierra6.2LV8N/A
2014GMCSierra5.3LV8N/A
2014GMCSierra 15004.3LV6N/A
2014GMCSierra 15006.2LV8N/A
2014GMCSierra 15005.3LV8N/A
2014GMCSierra 2500 HD6.0LV8N/A
2014GMCSierra 2500 HD6.6LV8N/A
2014GMCSierra 3500 HD6.6LV8N/A
2014GMCSierra 3500 HD6.0LV8N/A

* 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.

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