Four Seasons 98531 HVAC Heater Core
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Four Seasons
 Heater Core

Four Seasons 98531 HVAC Heater Core

Brand Four Seasons 98531
Length 9
Thickness 1-7/8
Width 6-1/2
Core Material Aluminum
Adjustable Pipe Positioning No
Core Depth IN 1.875
Core Height IN 9.000
Core Width IN 6.500
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 Buick, Chevrolet, Oldsmobile, and Pontiac · 56 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable fit and function.

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

Heater core. Built for HVAC systems to restore cabin heat performance.

Cross-references APDI 9010057, Dorman - Conduct-Tite 90400 and Four Seasons 96122 for the same application. See all 33.

$53.06Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $53.06
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all HVAC Heater Core options

Four Seasons 98531 Heater Core Overview

The Four Seasons 98531 heater core is an aluminum HVAC heater core built for direct replacement in select classic GM and Pontiac applications. With OE-style dimensions and aluminum construction, it supports cabin heat performance in vehicles such as the Chevrolet Impala, Chevrolet El Camino, and Pontiac GTO.

Key Features

  • Brand: Four Seasons Heater Core
  • Part number: 98531
  • Aluminum heater core construction
  • Core dimensions: 9 in. height, 6-1/2 in. width, 1-7/8 in. thickness
  • Tube sizes: 5/8 in. and 3/4 in.
  • Meets or exceeds OEM requirements
  • Adjustable pipe positioning: No

Product Details

Four Seasons Heater Core 98531 is an aluminum HVAC heater core designed around the listed dimensions for a precise replacement in compatible non-AC vehicles. The aluminum core material supports efficient heat transfer, while the OE-matching size profile helps maintain proper fit within the heater case. This part cross-references Spectra Premium 94531 for the same application.

Fits 1963-1964 Chevrolet Bel Air, N/A; Fits 1964-1968 Chevrolet Impala, N/A; Fits 1964-1967 Chevrolet El Camino, N/A; Fits 1964-1967 Pontiac GTO, N/A; Fits 1965-1967 Pontiac LeMans, N/A.

Common Uses

  • Restoring cabin heat in a classic Chevrolet Impala or Bel Air
  • Replacing a leaking or corroded heater core in a Pontiac GTO or LeMans
  • Addressing weak heat output caused by restricted coolant flow through the core
  • Repairing coolant odor or moisture inside the passenger compartment
  • Returning heater performance in non-air-conditioned classic GM vehicles

Installation Notes

Verify heater case dimensions, tube orientation, and hose connection sizes before installation. This heater core is listed for vehicles without air conditioning, so confirm the HVAC configuration on the vehicle before ordering. Flush the cooling system and inspect hoses, clamps, and the heater control valve, if equipped, during replacement.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements. The aluminum construction and application-specific sizing support a direct-fit replacement approach for the listed classic vehicle applications.

Related reading

This part fits 56 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
1968ChevroletBel Air—N/Aw/o AC; Heater Core
1968ChevroletCaprice—N/ACompatible with models that do not have air conditioning.; Heater Core
1968ChevroletImpala—N/ACompatible with models that do not have air conditioning.; Heater Core
1967BuickSkylark—N/ACompatible with models that do not have air conditioning.; Heater Core
1967ChevroletBel Air—N/Aw/o AC; Heater Core
1967ChevroletCaprice—N/ACompatible with models that do not have air conditioning.; Heater Core
1967ChevroletEl Camino—N/ACompatible with models that do not have air conditioning.; Heater Core
1967ChevroletImpala—N/ACompatible with models that do not have air conditioning.; Heater Core
1967ChevroletMalibu—N/ACompatible with models that do not have air conditioning.; Heater Core
1967OldsmobileCutlass—N/ACompatible with models that do not have air conditioning.; Heater Core
1967OldsmobileCutlass Supreme—N/ACompatible with models that do not have air conditioning.; Heater Core
1967PontiacBonnevilleSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1967PontiacCatalinaSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1967PontiacGTO—N/ACompatible with models that do not have air conditioning.; Heater Core
1967PontiacLeMans—N/ACompatible with models that do not have air conditioning.; Heater Core
1967PontiacTempest—N/ACompatible with models that do not have air conditioning.; Heater Core
1967PontiacTempestBaseN/ACompatible with models that do not have air conditioning.; Heater Core
1967PontiacTempestCustomN/ACompatible with models that do not have air conditioning.; Heater Core
1967PontiacTempestSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1966BuickSkylark—N/ACompatible with models that do not have air conditioning.; Heater Core
1966ChevroletBel Air—N/Aw/o AC; Heater Core
1966ChevroletCaprice—N/ACompatible with models that do not have air conditioning.; Heater Core
1966ChevroletEl Camino—N/ACompatible with models that do not have air conditioning.; Heater Core
1966ChevroletImpala—N/ACompatible with models that do not have air conditioning.; Heater Core
1966ChevroletMalibu—N/ACompatible with models that do not have air conditioning.; Heater Core
1966OldsmobileCutlass—N/ACompatible with models that do not have air conditioning.; Heater Core
1966PontiacBonnevilleSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1966PontiacCatalinaSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1966PontiacGTO—N/ACompatible with models that do not have air conditioning.; Heater Core
1966PontiacLeMans—N/ACompatible with models that do not have air conditioning.; Heater Core
1966PontiacTempest—N/ACompatible with models that do not have air conditioning.; Heater Core
1966PontiacTempestBaseN/ACompatible with models that do not have air conditioning.; Heater Core
1966PontiacTempestCustomN/ACompatible with models that do not have air conditioning.; Heater Core
1966PontiacTempestSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1965BuickSkylark—N/ACompatible with models that do not have air conditioning.; Heater Core
1965ChevroletBel Air—N/Aw/o AC; Heater Core
1965ChevroletEl Camino—N/ACompatible with models that do not have air conditioning.; Heater Core
1965ChevroletImpala—N/ACompatible with models that do not have air conditioning.; Heater Core
1965ChevroletMalibu—N/ACompatible with models that do not have air conditioning.; Heater Core
1965OldsmobileCutlass—N/ACompatible with models that do not have air conditioning.; Heater Core
1965PontiacBonnevilleSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1965PontiacCatalinaSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1965PontiacGTO—N/ACompatible with models that do not have air conditioning.; Heater Core
1965PontiacLeMans—N/ACompatible with models that do not have air conditioning.; Heater Core
1965PontiacTempest—N/ACompatible with models that do not have air conditioning.; Heater Core
1965PontiacTempestBaseN/ACompatible with models that do not have air conditioning.; Heater Core
1965PontiacTempestCustomN/ACompatible with models that do not have air conditioning.; Heater Core
1965PontiacTempestSafariN/ACompatible with models that do not have air conditioning.; Heater Core
1964BuickSkylark—N/ACompatible with models that do not have air conditioning.; Heater Core
1964ChevroletBel Air—N/ACompatible with models that do not have air conditioning.; Heater Core
1964ChevroletEl Camino—N/ACompatible with models that do not have air conditioning.; Heater Core
1964ChevroletImpala—N/ACompatible with models that do not have air conditioning.; Heater Core
1964OldsmobileCutlass—N/ACompatible with models that do not have air conditioning.; Heater Core
1964PontiacGTO—N/ACompatible with models that do not have air conditioning.; Heater Core
1964PontiacTempest—N/ACompatible with models that do not have air conditioning.; Heater Core
1963ChevroletBel Air—N/ACompatible with models that do not have air conditioning.; Heater Core
Directly replaces or cross-references 33 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 9010057Dorman - Conduct-Tite — 90400Four Seasons — 96122Four Seasons — 98531Global Parts Distributors LLC — 1811301NGK — 2147PEAK — 9040Spectra Premium — 945312501152791023990403990453990645545317021477021967091219453113004814300481930220694603016660301666035698231268GM9040GM9045GM9064H2178HT399040HT399045HT399064ZH115