HomeHVAC > Motors, Core, Case and Related ComponentsGlobal Parts 8231359 HVAC Heater Core
Part #: 8231359

Global Parts 8231359 HVAC Heater Core

14 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick, Cadillac, and Chevrolet, Commercial Chassis, Roadmaster, Fleetwood, Caprice, and Impala
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Overview of Global Parts HVAC Heater Core 8231359

The Global Parts HVAC Heater Core 8231359 is designed for reliable heating performance in select Buick, Cadillac, and Chevrolet vehicles. Engineered with durable aluminum, this heater core ensures efficient heat transfer and long-lasting operation for models like the Buick Roadmaster and Chevrolet Caprice.

  • Core dimensions: 6.125 inches height, 8.2 inches width, 1.25 inches thickness
  • Inlet diameter: 5/8 inch for secure hose connection
  • Constructed from corrosion-resistant aluminum material
  • Non-adjustable pipe positioning for direct fitment
  • Compatible with Buick Roadmaster, Cadillac Fleetwood, Chevrolet Impala, Caprice, and Commercial Chassis

Detailed Product Description

This HVAC heater core from Global Parts (part number 8231359) is built to meet the specific heating needs of various GM vehicles. The aluminum core provides efficient heat exchange while resisting corrosion, which is critical for maintaining cabin comfort and system longevity. With precise core dimensions of 6.125 inches in height, 8.2 inches in width, and 1.25 inches in thickness, this heater core fits directly into the HVAC system without modification. The 5/8 inch inlet diameter ensures compatibility with factory hoses, and the fixed pipe positioning simplifies installation.

Compatible Vehicles and Applications

This heater core is compatible with several GM models, including:

  • Buick Roadmaster
  • Cadillac Fleetwood
  • Chevrolet Caprice
  • Chevrolet Commercial Chassis
  • Chevrolet Impala

It is designed to replace the original heater core in these vehicles, restoring proper heating function and system efficiency.

Common Issues Addressed by This Heater Core

  • Insufficient cabin heat due to clogged or leaking heater core
  • Coolant leaks inside the vehicle causing fogging or dampness
  • Overheating HVAC system components from poor heat exchange
  • Reduced heater performance in Buick Roadmaster and Chevrolet Caprice models
  • Corrosion-related failure in older aluminum heater cores

Installation Notes and Tips

  • Ensure the cooling system is fully drained before removal
  • Verify the inlet hose diameter matches the 5/8 inch fitting
  • Handle the aluminum core carefully to avoid damage to fins
  • Check for proper sealing to prevent coolant leaks
  • Consult vehicle-specific service manuals for detailed removal and installation procedures

Quality Assurance and Warranty

Global Parts manufactures this heater core to meet OEM specifications, using corrosion-resistant aluminum for durability. The part number 8231359 undergoes quality checks to ensure fitment and function. Warranty coverage details should be confirmed with the distributor or retailer, as they may vary.

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1996BuickRoadmaster5.7LV8N/A
1996CadillacCommercial Chassis5.7LV8N/A
1996CadillacFleetwood5.7LV8N/A
1996ChevroletCaprice4.3LV8N/A
1996ChevroletCaprice5.7LV8N/A
1996ChevroletImpala5.7LV8N/A
1995BuickRoadmaster5.7LV8N/A
1995ChevroletCaprice4.3LV8N/A
1995ChevroletCaprice5.7LV8N/A
1995ChevroletImpala5.7LV8N/A
1994BuickRoadmaster5.7LV8N/A
1994ChevroletCaprice4.3LV8N/A
1994ChevroletCaprice5.7LV8N/A
1994ChevroletImpala5.7LV8N/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.