Global Parts 8231251 HVAC Heater Core

Heater Core for Select GM Vehicles

Global Parts 8231251 is a specific-fit HVAC heater core built with an aluminum construction for select Chevrolet, Buick, Oldsmobile, and Pontiac applications. It transfers heat from the engine cooling system into the cabin, helping restore proper interior heat output in vehicles such as the Chevrolet Lumina, Monte Carlo, Buick Regal, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix.

Key Features

• Specific-fit heater core for direct application matching
• Aluminum construction for HVAC heat exchange service
• Designed for vehicles with fixed pipe positioning
• Supports cabin heat delivery from engine coolant flow
• Global Parts part number 8231251 for catalog lookup

Application Details

This heater core is used in HVAC systems where engine coolant passes through the core to warm incoming air before it enters the passenger compartment. It cross-references Spectra Premium 94466 and 94485 for the same application. Compatible fitment includes Fits 1990-2001 Chevrolet Lumina, N/A; Fits 1995-1999 Chevrolet Monte Carlo, N/A; Fits 1999 Oldsmobile Cutlass, N/A; Fits 1988-1997 Oldsmobile Cutlass Supreme, N/A; Fits 1988-1996 Buick Regal, N/A; and Fits 1988-1996 Pontiac Grand Prix, N/A.

What It Helps Fix

• Weak or no cabin heat from the HVAC system
• Coolant transfer issues affecting heater performance
• Interior defrost performance problems caused by low heat output
• Leaking heater core symptoms tied to coolant loss inside the HVAC case
• Restricted heat exchange from a worn or clogged core

Installation Notes and Tips

Verify the vehicle’s year, make, and model before ordering, since this is a specific-fit part and pipe positioning is not adjustable. Confirm the HVAC case layout and coolant line routing during replacement. For best results, inspect related cooling-system components and flush the system if contamination or debris is present. Global Parts 8231251 is listed for the applications shown above, including Chevrolet Lumina and Pontiac Grand Prix fitments.

Quality Assurance

Global Parts supplies this heater core as an aluminum HVAC replacement component for the listed GM applications. The part number 8231251 is supported by multiple interchange references, including APDI 9010213 and Four Seasons 90485, which helps confirm catalog matching for the same service use.