Global Parts 8231351 HVAC Heater Core

HVAC Heater Core for GM and Isuzu Applications

Global Parts 8231351 is an aluminum HVAC heater core built to transfer heat from the engine cooling system into the cabin. With a compact core size and a 0.63 in inlet diameter, it is a direct-fit style replacement for select Chevrolet, GMC, Isuzu, and Oldsmobile trucks and SUVs.

• Aluminum core material for efficient heat transfer
• Core dimensions: 7.11 in height, 8.19 in width, 1.02 in thickness
• 0.63 in inlet diameter
• Adjustable pipe positioning: No
• Cross-references Four Seasons 90762 for the same application
• Part number 8231351 for ordering and catalog lookup

Detailed Product Overview

This Global Parts heater core is engineered for vehicles that rely on the HVAC system to warm cabin air using engine coolant flow. The aluminum construction supports thermal transfer while keeping the core compact for the listed GM and Isuzu fitments. If you are replacing a leaking or restricted heater core on a Chevrolet Blazer, Chevrolet S10, GMC Jimmy, GMC Sonoma, Isuzu Hombre, or Oldsmobile Bravada, Global Parts 8231351 matches the specified application range.

Compatible With 1995-1997 Chevrolet Blazer, 1994-1997 Chevrolet S10, 1995-1997 GMC Jimmy, 1994-1997 GMC Sonoma, 1996-1997 Isuzu Hombre, and 1996-1997 Oldsmobile Bravada. The part number 8231351 also appears in interchange listings used across the aftermarket for these vehicles.

Common Problems This Part Can Address

• Weak or uneven cabin heat
• Coolant odor inside the vehicle
• Fogging or film on the inside of the windshield caused by heater core leakage
• Restricted coolant flow through the HVAC heater circuit
• Visible coolant seepage from the heater core area

Installation Notes and Tips

Verify inlet size and core dimensions against the removed unit before installation. Because adjustable pipe positioning is not provided, confirm hose routing and firewall clearance on the vehicle before final assembly. After installation, refill and bleed the cooling system according to factory service procedures to remove trapped air and restore heater performance.

Quality Assurance

Global Parts supplies this heater core as an aftermarket replacement built to the listed specifications and fitment data. The aluminum core construction and application-specific dimensions support consistent HVAC service on the covered Chevrolet, GMC, Isuzu, and Oldsmobile models.