Global Parts 8231257 HVAC Heater Core

Name: Global Parts 8231257 HVAC Heater Core
Brand: Global Parts
SKU: BKNH-8231257
Price: 41.82 USD
Availability: InStock

159 vehicles fit this part

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OE Direct Replacement — Bolt-on fit, no modifications needed

Fitment: Buick, Oldsmobile, Pontiac, Chevrolet, and Cadillac, Skylark, Achieva, Grand Am, Beretta, Corsica, Cavalier, Sunbird, Cutlass Calais, Skyhawk, Cimarron, Calais, and Somerset

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Overview of Global Parts HVAC Heater Core 8231257

The Global Parts HVAC Heater Core 8231257 is designed for reliable heating performance in select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles. Engineered with durable aluminum construction, this heater core ensures efficient heat transfer and long-lasting operation for models like the Chevrolet Cavalier and Pontiac Grand Am.

Core material made from corrosion-resistant aluminum
Core dimensions: 7.11 inches height, 6.22 inches width, 1.02 inches thickness
Inlet diameter of 0.63 inches for precise fitment
Non-adjustable pipe positioning for straightforward installation
Compatible with multiple GM makes and models from the 1980s and 1990s

Detailed Product Description

This HVAC heater core from Global Parts features an aluminum core that provides effective heat exchange while resisting corrosion and wear. The core measures 7.11 inches in height, 6.22 inches in width, and 1.02 inches in thickness, making it a direct replacement for original equipment in vehicles such as the Buick Skylark, Cadillac Cimarron, and Oldsmobile Cutlass Calais. The inlet diameter of 0.63 inches matches factory specifications, ensuring proper coolant flow and heater performance. The pipe positioning is fixed, which simplifies installation without the need for adjustments.

Compatible Vehicles and Common Applications

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

Buick Achieva, Skylark
Cadillac Cimarron
Chevrolet Cavalier, Corsica
Oldsmobile Cutlass Calais
Pontiac Grand Am, Sunbird, Skyhawk

Common Issues Addressed by This Heater Core

Insufficient cabin heat due to clogged or leaking heater core
Coolant leaks inside the vehicle causing foggy windows or damp carpets
Overheating engine caused by poor coolant circulation through the heater core
Unpleasant odors from coolant contamination in the HVAC system
Reduced heater efficiency impacting passenger comfort

Installation Notes and Tips

Ensure the vehicle is fully cooled before beginning installation to avoid burns
Drain the cooling system completely to prevent spills during removal
Verify inlet and outlet hose diameters match the 0.63-inch inlet size
Replace any worn or damaged hoses and clamps during installation
Bleed the cooling system after installation to remove air pockets

Quality Assurance and Warranty

Global Parts manufactures this heater core to meet or exceed OEM specifications, using aluminum for durability and corrosion resistance. While specific warranty details may vary, Global Parts typically offers coverage against defects in materials and workmanship. Refer to the product documentation for exact warranty terms related to part number 8231257.

This part fits 159 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Fuel Type	Position	Notes
1998	Buick	Skylark	3.1L	V6		N/A
1998	Buick	Skylark	2.4L	L4		N/A
1998	Oldsmobile	Achieva	3.1L	V6		N/A
1998	Oldsmobile	Achieva	2.4L	L4		N/A
1998	Pontiac	Grand Am	2.4L	L4		N/A
1998	Pontiac	Grand Am	3.1L	V6		N/A
1997	Buick	Skylark	3.1L	V6		N/A
1997	Buick	Skylark	2.4L	L4		N/A
1997	Oldsmobile	Achieva	3.1L	V6		N/A
1997	Oldsmobile	Achieva	2.4L	L4		N/A
1997	Pontiac	Grand Am	2.4L	L4		N/A
1997	Pontiac	Grand Am	3.1L	V6		N/A
1996	Buick	Skylark	3.1L	V6		N/A
1996	Buick	Skylark	2.4L	L4		N/A
1996	Chevrolet	Corsica	3.1L	V6		N/A
1996	Chevrolet	Corsica	2.2L	L4		N/A
1996	Oldsmobile	Achieva	3.1L	V6		N/A
1996	Oldsmobile	Achieva	2.4L	L4		N/A
1996	Pontiac	Grand Am	2.4L	L4		N/A
1996	Pontiac	Grand Am	3.1L	V6		N/A
1995	Buick	Skylark	2.3L	L4		N/A
1995	Buick	Skylark	3.1L	V6		N/A
1995	Chevrolet	Corsica	3.1L	V6		N/A
1995	Chevrolet	Corsica	2.2L	L4		N/A
1995	Oldsmobile	Achieva	2.3L	L4		N/A
1995	Oldsmobile	Achieva	3.1L	V6		N/A
1995	Pontiac	Grand Am	3.1L	V6		N/A
1995	Pontiac	Grand Am	2.3L	L4		N/A
1994	Buick	Skylark	2.3L	L4		N/A
1994	Buick	Skylark	3.1L	V6		N/A
1994	Chevrolet	Cavalier	3.1L	V6		N/A
1994	Chevrolet	Cavalier	2.2L	L4		N/A
1994	Chevrolet	Corsica	3.1L	V6		N/A
1994	Chevrolet	Corsica	2.2L	L4		N/A
1994	Oldsmobile	Achieva	3.1L	V6		N/A
1994	Oldsmobile	Achieva	2.3L	L4	GAS	N/A
1994	Pontiac	Grand Am	2.3L	L4	GAS	N/A
1994	Pontiac	Grand Am	3.1L	V6		N/A
1994	Pontiac	Sunbird	2.0L	L4		N/A
1994	Pontiac	Sunbird	3.1L	V6		N/A
1993	Buick	Skylark	2.3L	L4		N/A
1993	Buick	Skylark	3.3L	V6		N/A
1993	Chevrolet	Cavalier	3.1L	V6		N/A
1993	Chevrolet	Cavalier	2.2L	L4		N/A
1993	Chevrolet	Corsica	3.1L	V6		N/A
1993	Chevrolet	Corsica	2.2L	L4		N/A
1993	Oldsmobile	Achieva	3.3L	V6		N/A
1993	Oldsmobile	Achieva	2.3L	L4	GAS	N/A
1993	Pontiac	Grand Am	3.3L	V6		N/A
1993	Pontiac	Grand Am	2.3L	L4	GAS	N/A
1993	Pontiac	Sunbird	2.0L	L4		N/A
1993	Pontiac	Sunbird	3.1L	V6		N/A
1992	Buick	Skylark	2.3L	L4		N/A
1992	Buick	Skylark	3.3L	V6		N/A
1992	Chevrolet	Cavalier	3.1L	V6		N/A
1992	Chevrolet	Cavalier	2.2L	L4		N/A
1992	Chevrolet	Corsica	3.1L	V6		N/A
1992	Chevrolet	Corsica	2.2L	L4		N/A
1992	Oldsmobile	Achieva	3.3L	V6		N/A
1992	Oldsmobile	Achieva	2.3L	L4	GAS	N/A
1992	Pontiac	Grand Am	3.3L	V6		N/A
1992	Pontiac	Grand Am	2.3L	L4	GAS	N/A
1992	Pontiac	Sunbird	2.0L	L4		N/A
1992	Pontiac	Sunbird	3.1L	V6		N/A
1991	Buick	Skylark	2.3L	L4		N/A
1991	Buick	Skylark	2.5L	L4		N/A
1991	Buick	Skylark	3.3L	V6		N/A
1991	Chevrolet	Cavalier	3.1L	V6		N/A
1991	Chevrolet	Cavalier	2.2L	L4		N/A
1991	Chevrolet	Corsica	3.1L	V6		N/A
1991	Chevrolet	Corsica	2.2L	L4		N/A
1991	Oldsmobile	Cutlass Calais	3.3L	V6		N/A
1991	Oldsmobile	Cutlass Calais	2.5L	L4		N/A
1991	Oldsmobile	Cutlass Calais	2.3L	L4	GAS	N/A
1991	Pontiac	Grand Am	2.3L	L4	GAS	N/A
1991	Pontiac	Grand Am	2.5L	L4		N/A
1991	Pontiac	Sunbird	2.0L	L4		N/A
1991	Pontiac	Sunbird	3.1L	V6		N/A
1990	Buick	Skylark	2.3L	L4		N/A
1990	Buick	Skylark	2.5L	L4		N/A
1990	Buick	Skylark	3.3L	V6		N/A
1990	Chevrolet	Cavalier	3.1L	V6		N/A
1990	Chevrolet	Cavalier	2.2L	L4		N/A
1990	Chevrolet	Corsica	3.1L	V6		N/A
1990	Chevrolet	Corsica	2.2L	L4		N/A
1990	Oldsmobile	Cutlass Calais	3.3L	V6		N/A
1990	Oldsmobile	Cutlass Calais	2.5L	L4		N/A
1990	Oldsmobile	Cutlass Calais	2.3L	L4	GAS	N/A
1990	Pontiac	Grand Am	2.3L	L4	GAS	N/A
1990	Pontiac	Grand Am	2.5L	L4		N/A
1990	Pontiac	Sunbird	2.0L	L4		N/A
1989	Buick	Skyhawk	2.0L	L4		N/A	Fits models equipped with air conditioning.
1989	Buick	Skylark	2.3L	L4		N/A
1989	Buick	Skylark	2.5L	L4		N/A
1989	Buick	Skylark	3.3L	V6		N/A
1989	Chevrolet	Cavalier	2.0L	L4		N/A
1989	Chevrolet	Cavalier	2.8L	V6		N/A
1989	Chevrolet	Corsica	2.8L	V6		N/A
1989	Chevrolet	Corsica	2.0L	L4		N/A
1989	Oldsmobile	Cutlass Calais	3.3L	V6		N/A
1989	Oldsmobile	Cutlass Calais	2.5L	L4		N/A
1989	Oldsmobile	Cutlass Calais	2.3L	L4	GAS	N/A
1989	Pontiac	Grand Am	2.3L	L4	GAS	N/A
1989	Pontiac	Grand Am	2.5L	L4		N/A
1989	Pontiac	Grand Am	2.0L	L4		N/A
1989	Pontiac	Sunbird	2.0L	L4		N/A
1988	Buick	Skyhawk	2.0L	L4		N/A	Fits models equipped with air conditioning.
1988	Buick	Skylark	2.3L	L4		N/A
1988	Buick	Skylark	3.0L	V6		N/A
1988	Buick	Skylark	2.5L	L4		N/A
1988	Cadillac	Cimarron	2.8L	V6		N/A
1988	Chevrolet	Cavalier	2.0L	L4		N/A
1988	Chevrolet	Cavalier	2.8L	V6		N/A
1988	Chevrolet	Corsica	2.8L	V6		N/A
1988	Chevrolet	Corsica	2.0L	L4		N/A
1988	Oldsmobile	Cutlass Calais	2.5L	L4		N/A
1988	Oldsmobile	Cutlass Calais	3.0L	V6		N/A
1988	Oldsmobile	Cutlass Calais	2.3L	L4		N/A
1988	Pontiac	Grand Am	2.5L	L4		N/A
1988	Pontiac	Grand Am	2.0L	L4		N/A
1988	Pontiac	Grand Am	2.3L	L4		N/A
1988	Pontiac	Sunbird	2.0L	L4		N/A
1987	Buick	Skyhawk	2.0L	L4		N/A	Fits models equipped with air conditioning.
1987	Cadillac	Cimarron	2.8L	V6		N/A
1987	Chevrolet	Cavalier	2.0L	L4		N/A
1987	Chevrolet	Cavalier	2.8L	V6		N/A
1987	Chevrolet	Corsica	2.8L	V6		N/A
1987	Chevrolet	Corsica	2.0L	L4		N/A
1987	Oldsmobile	Calais	2.5L	L4		N/A
1987	Oldsmobile	Calais	3.0L	V6		N/A
1987	Oldsmobile	Calais	2.3L	L4		N/A
1987	Pontiac	Grand Am	2.5L	L4		N/A
1987	Pontiac	Grand Am	3.0L	V6		N/A
1987	Pontiac	Grand Am	2.0L	L4		N/A
1987	Pontiac	Sunbird	2.0L	L4		N/A
1986	Buick	Skyhawk	2.0L	L4		N/A	Fits models equipped with air conditioning.
1986	Buick	Skyhawk	1.8L	L4		N/A	Fits models equipped with air conditioning.
1986	Cadillac	Cimarron	2.8L	V6		N/A
1986	Cadillac	Cimarron	2.0L	L4		N/A
1986	Chevrolet	Cavalier	2.0L	L4		N/A
1986	Chevrolet	Cavalier	2.8L	V6		N/A
1986	Oldsmobile	Calais	2.5L	L4		N/A
1986	Oldsmobile	Calais	3.0L	V6		N/A
1986	Pontiac	Grand Am	2.5L	L4		N/A
1986	Pontiac	Grand Am	3.0L	V6		N/A
1986	Pontiac	Sunbird	1.8L	L4		N/A
1986	Pontiac	Sunbird	2.0L	L4		N/A
1985	Buick	Skyhawk	1.8L	L4		N/A	Fits models equipped with air conditioning.
1985	Buick	Skyhawk	2.0L	L4		N/A	Fits models equipped with air conditioning.
1985	Cadillac	Cimarron	2.8L	V6		N/A
1985	Cadillac	Cimarron	2.0L	L4		N/A
1985	Chevrolet	Cavalier	2.0L	L4		N/A
1985	Chevrolet	Cavalier	2.8L	V6		N/A
1985	Oldsmobile	Calais	2.5L	L4		N/A
1985	Oldsmobile	Calais	3.0L	V6		N/A
1985	Pontiac	Grand Am	2.5L	L4		N/A
1985	Pontiac	Grand Am	3.0L	V6		N/A
1978	Pontiac	Grand Am	4.9L	V8		N/A
1978	Pontiac	Grand Am	5.0L	V8		N/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.