Four Seasons 98555A HVAC Heater Core
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Four Seasons
 Heater Core

Four Seasons 98555A HVAC Heater Core

Brand Four Seasons 98555A
Length 7-3/4
Thickness 1-7/8
Width 5-7/8
Core Material Aluminum
Adjustable Pipe Positioning No
Core Depth IN 1.875
Core Height IN 7.750
Core Width IN 5.875
Description Heater cores
Meets / Exceeds OEM? Yes
Style Aluminum heater core
Tube 1 IN 0.625
Tube 1 MM 15.875
Tube 2 IN 0.750
Tube 2 MM 19.050
Type Heater core /aluminum
Product line Heater Core
Fits Chevrolet · 12 vehicles

OE direct replacement. Meets or exceeds OEM requirements for a straightforward replacement.

Aluminum construction. Lightweight core material helps support efficient heat transfer.

Heater core. Built as an HVAC heater core for dependable cabin heat.

Cross-references Anchor 9082, APDI 9010136 and Dorman - HELP 94555 for the same application. See all 24.

$58.43Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Four Seasons 98555A Heater Core for Corvette

Four Seasons 98555A is an aluminum HVAC heater core built for direct replacement service in select Chevrolet Corvette applications. It is specified for 1968-1979 Corvette models without air conditioning and is sized to match the listed core dimensions for a proper HVAC repair.

Key Features

  • Aluminum heater core construction
  • Core dimensions: 7-3/4 in. length, 5-7/8 in. width, 1-7/8 in. thickness
  • Tube sizes: 0.625 in. and 0.750 in.
  • Meets or exceeds OEM requirements
  • Four Seasons Heater Core line replacement part
  • Part number 98555A for catalog and service reference

Product Details

This Four Seasons heater core is designed for HVAC repair where the original core has leaked, restricted coolant flow, or no longer delivers consistent cabin heat. The aluminum core material supports efficient heat transfer, while the listed tube dimensions and overall size help match the factory-style installation in Chevrolet Corvette heater systems. Four Seasons 98555A is a direct-fit style heater core for 1968-1979 Chevrolet Corvette models without air conditioning, and it cross-references Dorman - HELP 94555 for the same application.

Common Problems It Can Address

  • Coolant odor inside the cabin from a leaking heater core
  • Weak or uneven heat output from restricted coolant passages
  • Fogging or film on the windshield caused by heater core seepage
  • Loss of cabin heat in Chevrolet Corvette HVAC systems
  • Corrosion-related failure in an aging aluminum heater core

Installation Notes and Tips

Verify the vehicle is a 1968-1979 Chevrolet Corvette without air conditioning before ordering. Compare the existing core dimensions, tube sizes, and pipe orientation to the listed specifications for 98555A before installation. Because heater core replacement typically requires access to the HVAC case, inspect hoses, clamps, and surrounding seals during service and confirm the cooling system is properly filled and bled after installation.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements. The part is built as an aluminum heater core for service replacement in the Four Seasons Heater Core product line.

Related reading

This part fits 12 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1979ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1978ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1977ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1976ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1975ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1974ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1973ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1972ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1971ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1970ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1969ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
1968ChevroletCorvetteN/ACompatible with models that do not have air conditioning.; Heater Core
Directly replaces or cross-references 24 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 9082APDI — 9010136Dorman - HELP — 94555Four Seasons — 98555Four Seasons — 98555ALIQUI MOLY — 224490820250160279126398212399082554555702244709139156000415601201563337181210930149006603140GM9082H2290HT399082ZH160