APDI 9010089 HVAC Heater Core

APDI Heater Core for GM HVAC Systems

APDI 9010089 is an aluminum HVAC heater core for GM applications with air conditioning. It is built with aluminum core and tank construction, with 5/8-inch outlet and 3/4-inch inlet pipe diameters for direct replacement service in the listed vehicles.

This heater core is part of APDI’s Heater Core line, focused on replacement HVAC core components for GM fitments. For shoppers searching for a heater core for Chevrolet Monte Carlo, Buick Regal, or Pontiac Grand Prix, APDI 9010089 matches the listed applications and dimensions.

Key Features

• Aluminum core construction
• Aluminum tank material
• Core height: 7-3/8 inches
• Core width: 6 inches
• Core thickness: 2 inches
• Outlet pipe diameter: 5/8 inch
• Inlet pipe diameter: 3/4 inch
• Direct-fit HVAC heater core for listed GM vehicles with AC

Detailed Description

APDI 9010089 is an HVAC heater core designed for GM vehicles equipped with air conditioning. Its aluminum construction supports efficient heat transfer and corrosion resistance, while the compact 7-3/8 x 6 x 2-inch core size and specified inlet and outlet pipe diameters help match the original HVAC layout. This part cross-references Four Seasons 98505 and TYC 96025 for the same application.

Compatible With 1978-1988 Chevrolet Monte Carlo, N/A; 1978-1987 Buick Regal, N/A; 1978-1987 Chevrolet El Camino, N/A; 1978-1987 Oldsmobile Cutlass, N/A; 1978-1987 Oldsmobile Cutlass Supreme, N/A; 1978-1987 Pontiac Grand Prix, N/A; 1982-1986 Pontiac Bonneville, N/A; and other listed GM models. APDI 9010089 is also a fitment-based search match for Chevrolet Malibu, Oldsmobile Cutlass Cruiser, Pontiac Grand LeMans, Buick Century, Pontiac LeMans, Pontiac Grand Am, and Oldsmobile Custom Cruiser applications shown in the fitment data.

What It Helps Address

• Loss of cabin heat from a leaking or restricted heater core
• Coolant odor or moisture inside the HVAC case area
• Uneven or weak defrost performance caused by poor heater core flow
• Temperature control issues in GM HVAC systems with AC
• Replacement needs after corrosion or internal blockage

Installation Notes and Tips

Verify the vehicle’s year, make, model, and AC-equipped HVAC configuration before installation. Compare the original core dimensions and pipe diameters to APDI 9010089 to confirm proper routing and fit. Flush the cooling system and inspect hoses, clamps, and the HVAC case for contamination or debris before installing the replacement heater core.

Quality Assurance

APDI heater cores are built as replacement HVAC components for listed GM applications and are identified by part number 9010089 for accurate ordering and service reference.