Global Parts 8231375 HVAC Heater Core - Front

Global Parts 8231375 Heater Core

Global Parts 8231375 is an aluminum HVAC heater core built to transfer heat from the engine cooling system into the cabin. It is a direct-fit replacement for select Buick, Chevrolet, Oldsmobile, and Pontiac applications, including Buick Century, Buick Regal, Chevrolet Impala, Chevrolet Monte Carlo, Pontiac Grand Prix, Oldsmobile Intrigue, Oldsmobile Silhouette, Pontiac Montana, and Pontiac Trans Sport.

Key Features

• Aluminum core material for efficient heat transfer
• Core dimensions: 6.13 in. height, 8.19 in. width, 1.02 in. thickness
• Inlet diameter: 0.63 in.
• Adjustable pipe positioning: No
• Built for HVAC heater core replacement service
• Part number 8231375 for easy identification

Detailed Description

This heater core is designed for vehicles that rely on engine coolant flow to produce interior heat. The aluminum construction supports thermal transfer while keeping the core compact for the HVAC case. With a 6.13-inch height, 8.19-inch width, and 1.02-inch thickness, Global Parts 8231375 matches the size requirements for the listed applications and supports proper coolant routing through the heater circuit. This part number 8231375 also cross-references Four Seasons 90016 for the same application.

What It Helps Fix

• Weak or no cabin heat
• Coolant seepage from the heater core area
• Fogging or film on the inside of the windshield caused by heater core leakage
• Restricted coolant flow through the HVAC heater circuit
• Temperature inconsistency in Buick Century, Buick Regal, Chevrolet Impala, and related models

Installation Notes and Fitment

Fits 1997-2005 Buick Century, N/A. Fits 1997-2004 Buick Regal, N/A. Fits 2000-2003 Chevrolet Impala, N/A. Fits 2000-2003 Chevrolet Monte Carlo, N/A. Fits 1997-2003 Pontiac Grand Prix, N/A. Fits 1998-2002 Oldsmobile Intrigue, N/A. Fits 1997-2000 Oldsmobile Silhouette, Front. Fits 1999-2000 Pontiac Montana, Front. Fits 1997-1999 Pontiac Trans Sport, Front.

Verify inlet size, core dimensions, and HVAC case layout before installation. Drain and refill coolant according to service procedures, and inspect hoses, seals, and clamps while the system is open. Proper bleeding of the cooling system helps restore heater performance after replacement.

Quality Assurance

Global Parts 8231375 is an aluminum HVAC heater core built for direct replacement service in the listed vehicle applications. Its OE-style fitment references and application coverage support accurate parts matching for repair work on Buick, Chevrolet, Oldsmobile, and Pontiac models.