APDI 9010263 HVAC Heater Core

APDI 9010263 Heater Core Overview

The APDI 9010263 heater core is a direct-fit HVAC heater core for select GM and related applications. Built with aluminum construction, aluminum tanks, and aluminum core material, it is sized for the factory heater box and coolant flow requirements in supported vehicles.

Compatible With 1994-1997 Chevrolet S10, 1995-1997 Chevrolet Blazer, 1997 Chevrolet LUV, 1994-1997 GMC Sonoma, 1995-1997 GMC Jimmy, 1996-1997 Isuzu Hombre, and 1996-1997 Oldsmobile Bravada.

Key Features

• Aluminum core and aluminum tank construction
• Core dimensions: 8-1/4 in. height, 7-1/2 in. width, 1-1/4 in. thickness
• Inlet pipe diameter: 5/8 in.
• Outlet pipe diameter: 3/4 in.
• HVAC heater core replacement for GM heater systems
• APDI heater core part number 9010263

Detailed Description

APDI Heater Core 9010263 is an aluminum HVAC heater core engineered for vehicles that use the listed inlet and outlet pipe sizes and the specified core dimensions. The compact aluminum design supports efficient coolant heat transfer through the heater box, helping restore cabin heat performance in applications such as Chevrolet S10, Chevrolet Blazer, GMC Sonoma, and GMC Jimmy. This part also cross-references Four Seasons 90762 for the same application.

The APDI heater core line focuses on replacement HVAC components for service work where the original heater core has reached the end of its life. Part number 9010263 is built to match the physical layout needed for the supported GM, Isuzu, and Oldsmobile fitments.

What This Heater Core Helps Address

• Weak or inconsistent cabin heat
• Coolant seepage from a leaking heater core
• Restricted heat output caused by internal blockage
• Fogging or sweet odor inside the cabin from heater core failure
• Loss of heater performance in supported Chevrolet S10 and GMC Sonoma applications

Installation Notes and Tips

Verify heater hose connection sizes before installation: 5/8 in. inlet and 3/4 in. outlet. Confirm the core dimensions match the original unit and inspect the heater box, seals, and hoses for wear before reassembly. Proper coolant service and system bleeding are important after heater core replacement to help prevent air pockets and restore normal heater operation.

Quality Assurance

APDI supplies HVAC replacement components for service applications, and this heater core is built with aluminum core and tank materials to meet the dimensional and connection requirements listed for the supported vehicles. Part number 9010263 is specified for direct replacement use in the fitments shown above.