APDI 9010231 HVAC Heater Core

APDI Heater Core for Ford Applications

The APDI 9010231 heater core is an aluminum HVAC replacement built for Ford Thunderbird and Mercury Cougar models from the late 1980s through the 1990s. It is sized for direct-fit service in the heater core location and uses 3/4-inch inlet and outlet connections for proper coolant flow.

Key Features

• Aluminum construction for the core, tank, and overall assembly
• Core height: 7-3/8 inches
• Core width: 6 inches
• Core thickness: 2 inches
• 3/4-inch inlet pipe diameter
• 3/4-inch outlet pipe diameter
• APDI heater core part number 9010231

Detailed Product Information

APDI Heater Core 9010231 is a Ford heater core replacement designed around aluminum materials for both the core and tank. The compact 7-3/8-inch height, 6-inch width, and 2-inch thickness make it a practical match for HVAC service where the original heater core has leaked, restricted coolant flow, or lost heating performance. This part cross-references Four Seasons 90479 for the same application.

Compatible With 1989-1997 Ford Thunderbird, N/A; 1989-1997 Mercury Cougar, N/A; and 1990-1993 Ford Cougar, N/A. For shoppers searching for a Ford Thunderbird heater core replacement or a Mercury Cougar heater core by part number 9010231, this unit provides the listed dimensions and connection sizes needed for fitment-based selection.

Common Issues This Part Can Address

• Loss of cabin heat from a leaking or clogged heater core
• Coolant odor inside the vehicle from heater core seepage
• Fogging or film on the windshield caused by HVAC coolant leakage
• Restricted heater performance due to internal blockage
• Need for a direct replacement during HVAC system repair

Installation Notes and Tips

Verify core dimensions and 3/4-inch inlet and outlet pipe sizes against the removed unit before installation. Inspect heater hoses, clamps, and coolant condition during service so the replacement heater core can operate with clean flow and proper sealing. Confirm vehicle application by year and model before ordering APDI 9010231.

Quality Assurance

APDI supplies HVAC replacement components for service applications, and this heater core is built with aluminum construction to match the listed specifications for the intended Ford and Mercury fitments.