Global Parts 8231379 HVAC Heater Core - Front

HVAC Heater Core for GM Trucks and SUVs

Global Parts 8231379 is an aluminum HVAC heater core built to transfer heat from the engine cooling system into the cabin. It is a direct-fit style replacement for a wide range of Chevrolet, GMC, Cadillac, and Hummer applications, including Silverado, Sierra, Tahoe, Yukon, and Escalade models.

Use this heater core when you need dependable cabin heat and a replacement that matches the listed core dimensions and inlet size. The Global Parts 8231379 heater core is also a fit for many 1999-2018 GM truck and SUV applications, including front-mounted systems and select automatic temperature control configurations.

Key Features

• Aluminum core material for efficient heat transfer
• Core dimensions: 7.11 in. height, 8.19 in. width, 1.02 in. thickness
• 0.75 in. inlet diameter
• Front-position applications listed across multiple GM platforms
• Fits select Chevrolet Silverado, GMC Sierra, Cadillac Escalade, and Hummer H2 models
• Part number 8231379 for easy identification

Detailed Description

Heater cores move heat from engine coolant into the passenger compartment, making them a critical part of the HVAC system. Global Parts 8231379 uses an aluminum core construction and the listed inlet and core dimensions to serve as a replacement heater core for many GM full-size trucks and SUVs. This part number 8231379 is listed for applications such as 2002-2018 Cadillac Escalade, 1999-2006 Chevrolet Silverado 1500, 2007-2013 Chevrolet Silverado 1500, 2000-2014 GMC Yukon, and 2003-2009 Hummer H2. It also cross-references Four Seasons 90050 for the same application.

Compatible With 2002-2018 Cadillac Escalade, front; 2003-2018 Cadillac Escalade ESV, front; 2004-2014 Chevrolet Suburban 1500, front; 2006-2014 Chevrolet Tahoe, front; 2000-2014 GMC Yukon, front; and other listed GM truck applications. For 2007-2013 Chevrolet Silverado and GMC Sierra models, the fitment notes include Automatic Temperature Control compatibility where shown.

Common Replacement Reasons

• Weak or no cabin heat
• Coolant odor inside the vehicle
• Fogging or film on the windshield from heater core leakage
• Coolant loss traced to the HVAC system
• Restricted heat output from a clogged or corroded core

Installation Notes and Tips

Verify the vehicle year, make, model, and HVAC configuration before installation. Confirm the listed core height, width, thickness, and 0.75 in. inlet diameter against the original part. On applications marked front, match the factory heater core location and inspect coolant hoses, clamps, and HVAC seals during replacement. For Silverado and Sierra listings with Automatic Temperature Control compatibility, confirm the vehicle’s HVAC control setup before ordering.

Quality Assurance

Global Parts supplies replacement HVAC components for a broad range of GM applications, and this heater core is cataloged to match the listed fitment and dimensional specifications. Part number 8231379 is supported by extensive interchange coverage for common aftermarket cross-reference use.