Four Seasons 98554A HVAC Heater Core

Four Seasons 98554A Heater Core Overview

The Four Seasons 98554A heater core is an aluminum HVAC heater core built for direct replacement service in select Chevrolet Corvette applications. It is specified for 1968-1977 Chevrolet Corvette models with air conditioning and uses an aluminum core design to support efficient cabin heat transfer.

Four Seasons Heater Core line parts are focused on replacement HVAC components that match OE-style fitment and dimensions. This heater core meets or exceeds OEM requirements and is built as an aluminum heater core for service in the Corvette heating system.

Key Features

• Part number: 98554A
• Brand: Four Seasons Heater Core
• Aluminum core material and aluminum heater core style
• Core dimensions: 6 in. height, 5-7/8 in. width, 1-5/8 in. thickness
• Tube sizes: 0.625 in. and 0.750 in.
• Meets or exceeds OEM specifications
• Direct fit for select Chevrolet Corvette HVAC systems

Detailed Description

The Four Seasons 98554A heater core is an HVAC heater core designed for 1968-1977 Chevrolet Corvette models with AC. Its aluminum construction supports heat exchange inside the vehicle’s heater box, while the listed dimensions and tube sizes help match the original application. If you are replacing a leaking or restricted Corvette heater core, this part number 98554A provides an OE-style replacement path for the heating system.

This part cross-references Dorman - HELP 94554 for the same application.

What It Helps Address

• Loss of cabin heat in a Chevrolet Corvette
• Coolant odor or moisture inside the HVAC area
• Restricted coolant flow through the heater core
• Uneven or weak heater output
• Replacement of a corroded or leaking aluminum heater core

Installation Notes

Fits 1968-1977 Chevrolet Corvette, N/A. Notes: Aluminum Design; w/ AC; Heater Core. Verify core dimensions, tube orientation, and HVAC housing clearance before installation. Confirm the vehicle’s heater hoses and connections match the listed tube sizes and application details for Four Seasons 98554A.

Quality Assurance

This Four Seasons heater core is listed as meeting or exceeding OEM requirements. Use the confirmed fitment and dimensional specifications to verify application before installation on a Chevrolet Corvette heating and air conditioning system.