APDI
Heater Core

APDI 9010254 HVAC Heater Core

Brand APDI 9010254
Construction Aluminum
Core Height 8-3/8
Core Material Aluminum
Core Thickness 1
Core Width 6
Extended Length 5/8
Inlet Pipe Diameter 3/4
Tank Material Aluminum
Product line Heater Core
Fits Buick, Cadillac, and Chevrolet · 15 vehicles

Aluminum construction. Core, tanks, and pipes are all aluminum for efficient heat transfer.

Heater core. Provides the heat-exchange function for the HVAC system.

Compact 8-3/8 by 6 by 1 size fits tight HVAC packaging.

Cross-references Four Seasons 90778, OSC 98778 and Remy 94778 for the same application. See all 8.

$47.55Free shipping
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APDI 9010254 Heater Core for GM HVAC

The APDI 9010254 heater core is a GM heater core replacement built with aluminum construction for efficient heat transfer and corrosion resistance. It is sized for the listed GM applications and matches the inlet and outlet pipe diameters needed for proper HVAC hose connection.

Compatible with Buick Roadmaster, Cadillac Commercial Chassis, Cadillac Fleetwood, Cadillac 60 Special, Chevrolet Caprice, and Chevrolet Impala applications from 1993 through 1996, this heater core supports cabin heat restoration in GM full-size platforms. APDI heater core 9010254 is a direct-fit service part for vehicles that need a replacement heater core with the correct core dimensions and tube sizing.

Key Features

  • Aluminum core and aluminum tank construction
  • Core height: 8-3/8 in.
  • Core width: 6 in.
  • Core thickness: 1 in.
  • Inlet pipe diameter: 3/4 in.
  • Outlet pipe diameter: 5/8 in.
  • GM heater core application coverage

Product Details

This APDI heater core is built around aluminum core material and aluminum tank material for a lightweight, heat-exchanging design. The dimensions and pipe diameters are important for fitment in the HVAC case and for connecting the heater hoses correctly. Part number 9010254 also cross-references Four Seasons 90778 for the same application.

What It Helps Fix

  • No cabin heat from a restricted or leaking heater core
  • Coolant odor inside the vehicle from heater core seepage
  • Fogging or film on the windshield caused by HVAC coolant leakage
  • Uneven or weak heat output through the HVAC system
  • Cooling system coolant loss traced to the heater core

Installation Notes

Verify core height, width, thickness, and hose tube diameters before installation. This heater core is listed for 1993-1996 GM applications, including Fits 1994-1996 Buick Roadmaster, N/A; Fits 1993-1996 Cadillac Commercial Chassis, N/A; Fits 1993-1996 Cadillac Fleetwood, N/A; Fits 1993 Cadillac 60 Special, N/A; Fits 1994-1996 Chevrolet Caprice, N/A; and Fits 1994-1996 Chevrolet Impala, N/A. Confirm HVAC case access and hose routing against the vehicle service procedure before reassembly.

Quality Assurance

APDI supplies HVAC replacement components for GM applications, and this heater core is built to match the listed dimensions and material specifications for service replacement use.

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1996BuickRoadmasterN/AHeater Core
1996CadillacCommercial ChassisN/AHeater Core
1996CadillacFleetwoodN/AHeater Core
1996ChevroletCapriceN/AHeater Core
1996ChevroletImpalaN/AHeater Core
1995BuickRoadmasterN/AHeater Core
1995ChevroletCapriceN/AHeater Core
1995ChevroletImpalaN/AHeater Core
1994BuickRoadmasterN/AHeater Core
1994ChevroletCapriceN/AHeater Core
1994ChevroletCommercial ChassisN/AHeater Core
1994ChevroletImpalaN/AHeater Core
1993Cadillac60 SpecialN/AHeater Core
1993CadillacCommercial ChassisN/AHeater Core
1993CadillacFleetwoodN/AHeater Core
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 90778OSC — 98778Remy — 94778TYC — 9603218-114536006339827052469251