HomeHVAC > Motors, Core, Case and Related ComponentsFour Seasons 98554A HVAC Heater Core
Part #: 98554A

Four Seasons 98554A HVAC Heater Core

Heater Core
⚙️ 10 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Heater Core
🚗Fitment: Chevrolet, Corvette
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Heater Core Replacement for Chevrolet Corvette

The Four Seasons Heater Core 98554A is designed specifically for Chevrolet Corvette models, providing efficient heating performance and durability. Crafted from aluminum, this heater core ensures effective heat transfer and long-lasting operation in your vehicle's HVAC system.

Key Features of Four Seasons Heater Core 98554A

  • Core dimensions: 6 inches length, 5-7/8 inches width, and 1-5/8 inches thickness
  • Constructed from high-quality aluminum for enhanced heat conduction
  • Core depth of 1.625 inches and core height of 6.000 inches
  • Tube sizes: 0.625 inches (15.875 mm) and 0.750 inches (19.050 mm)
  • Meets or exceeds OEM specifications for reliable fit and function
  • Non-adjustable pipe positioning for direct replacement

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on delivering durable and efficient HVAC heater cores engineered to meet or exceed original equipment manufacturer standards. This product line emphasizes quality materials such as aluminum cores to optimize heat transfer and corrosion resistance, ensuring consistent heating performance in vehicles like the Chevrolet Corvette.

Detailed Product Description

The Four Seasons Heater Core 98554A is an aluminum heater core designed to replace the original unit in Chevrolet Corvette vehicles. Its precise dimensions—6 inches in length, 5-7/8 inches in width, and 1-5/8 inches in thickness—allow for a direct fit without modification. The core depth of 1.625 inches and height of 6.000 inches provide the necessary surface area for efficient heat exchange. The two inlet and outlet tubes measure 0.625 inches and 0.750 inches respectively, matching OEM specifications for seamless integration. This heater core does not feature adjustable pipe positioning, ensuring a straightforward replacement process. Constructed from aluminum, it offers improved corrosion resistance and heat conduction compared to traditional materials.

Common Issues Addressed by This Heater Core

  • Insufficient cabin heating due to clogged or leaking heater core
  • Coolant leaks inside the vehicle causing foggy windows or damp carpets
  • Overheating engine symptoms related to heater core failure
  • Unpleasant odors from coolant entering the HVAC system
  • Reduced HVAC system efficiency impacting driver comfort

Installation Notes and Tips

When installing the Four Seasons Heater Core 98554A in a Chevrolet Corvette, ensure the vehicle is fully cooled and the cooling system is depressurized before removal. Carefully disconnect the inlet and outlet tubes matching the 0.625 inch and 0.750 inch sizes to avoid damage. Since pipe positioning is fixed, verify alignment before securing the heater core in place. Follow manufacturer guidelines for coolant refilling and system bleeding to prevent air pockets and ensure optimal heating performance.

Quality Assurance and Warranty

This Four Seasons Heater Core meets or exceeds OEM standards, providing reliable performance and durability. Manufactured with corrosion-resistant aluminum, it is engineered for long service life in Chevrolet Corvette vehicles. Warranty details are available through Four Seasons and typically cover defects in materials and workmanship under normal use.

BrandFour Seasons
Part Number98554A
PositionHeater Core
Length6
Thickness1-5/8
Width5-7/8
Core MaterialAluminum
Adjustable Pipe PositioningNo
Core Depth IN1.625
Core Height IN6.000
Core Width IN5.875
DescriptionHeater cores
Meets / Exceeds OEM?Yes
StyleAluminum heater core
Tube 1 IN0.625
Tube 1 MM15.875
Tube 2 IN0.750
Tube 2 MM19.050
TypeHeater core /aluminum

This part fits 10 vehicles. Search below:

YearMakeModelPositionNotes
1977ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1976ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1975ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1974ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1973ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1972ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1971ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1970ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1969ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core
1968ChevroletCorvetteN/AAluminum Design; w/ AC; Heater Core

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

156000515600941563338181210822622501592635027912530151453990815248406055455466031417022627091389010137908190810945549855498554AGM9081H2293HT399081ZH159

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.