Global Parts 8231503 HVAC Heater Core

HVAC Heater Core for Colorado, Canyon and More

Restore cabin heat with this Global Parts HVAC heater core, part number 8231503. It is a specific-fit aluminum heater core built for direct replacement in select Chevrolet, GMC, and Isuzu applications, including Chevrolet Colorado and GMC Canyon models.

Key Features

• Specific-fit design for direct vehicle application matching
• Aluminum construction for efficient heat transfer
• Heater core transfers heat from engine coolant to the cabin
• Compatible with select Chevrolet Colorado, GMC Canyon, and Isuzu models
• Global Parts part number 8231503

Product Details

This HVAC heater core is engineered to move heat from the engine cooling system into the passenger compartment through the vehicle’s heater box. The aluminum core supports thermal transfer while maintaining the fit required for the listed applications. Part number 8231503 cross-references UAC HT399424C for the same application.

Compatible With 2004-2012 Chevrolet Colorado, N/A; 2004-2012 GMC Canyon, N/A; 2007-2008 Isuzu i-290, N/A; 2007-2008 Isuzu i-370, N/A; 2003-2006 Chevrolet SSR, N/A; 2006 Isuzu i-280, N/A; and 2006 Isuzu i-350, N/A.

Common Problems This Part Can Address

• Weak or no heat from the vents
• Coolant odor inside the cabin
• Fogging or film on the windshield from heater core leakage
• Uneven cabin temperature output
• Loss of heater performance caused by a restricted or leaking core

Installation Notes and Tips

Verify the vehicle’s year, make, and model before installation. This heater core uses a specific-fit design and does not feature adjustable pipe positioning, so port alignment should be checked against the original unit before assembly. Inspect the cooling system, hoses, and related seals during replacement to help prevent repeat leaks or restricted flow.

Quality Assurance

Global Parts supplies HVAC replacement components for direct-fit service applications. Part number 8231503 is built as an aluminum heater core for the listed vehicles and is intended to match the original application requirements.