Four Seasons 98535 HVAC Heater Core

Brand	Four Seasons 98535
Length	9-1/4
Thickness	2
Width	6
Core Material	Aluminum
Adjustable Pipe Positioning	No
Core Depth IN	2.000
Core Height IN	9.250
Core Width IN	6.000
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 · 47 vehicles

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

Aluminum core. Lightweight construction helps transfer heat efficiently.

Heater core. Restores cabin heat through the HVAC system.

Cross-references APDI 9010064, BBB Industries 8226 and Four Seasons 98535 for the same application. See all 27.

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Four Seasons 98535 Heater Core Overview

Four Seasons 98535 is an aluminum HVAC heater core for classic GM A-body and full-size applications with air conditioning. It measures 9-1/4 inches long, 6 inches wide, and 2 inches deep, with 0.625-inch and 0.750-inch tube connections for a direct replacement-style repair.

Built to meet or exceed OEM requirements, this Four Seasons Heater Core supports dependable cabin heat in vehicles such as the Buick Skylark, Chevrolet El Camino, Chevrolet Monte Carlo, Oldsmobile Cutlass, Pontiac GTO, and related models.

Key Features

Aluminum heater core construction
Core dimensions: 9.250 in. height, 6.000 in. width, 2.000 in. depth
Tube sizes: 0.625 in. and 0.750 in.
Meets or exceeds OEM specifications
Fixed pipe positioning; adjustable pipe positioning: No
Four Seasons part number 98535

Product Details

The Four Seasons Heater Core line focuses on replacement HVAC components for restoring heat transfer inside the cabin. Part number 98535 uses an aluminum core design to help maintain efficient coolant-to-air heat exchange in the heater box. This unit cross-references Gates 2200 for the same application.

Fits 1968-1972 Buick Skylark, N/A; Fits 1969-1972 Chevrolet El Camino, N/A; Fits 1970-1972 Chevrolet Monte Carlo, N/A; Fits 1972 Oldsmobile Custom Cruiser, N/A; Fits 1968-1972 Oldsmobile Cutlass, N/A; Fits 1968-1972 Oldsmobile Cutlass Supreme, N/A; Fits 1969-1972 Pontiac Grand Prix, N/A; Fits 1968-1972 Pontiac GTO, N/A; Fits 1969-1972 Pontiac LeMans, N/A; Fits 1969-1970 Chevrolet Bel Air, N/A; Fits 1969-1970 Chevrolet Caprice, N/A; Fits 1969-1970 Chevrolet Impala, N/A; Fits 1970 Pontiac Bonneville, N/A; Fits 1970 Pontiac Catalina, N/A; Fits 1969 Pontiac Bonneville, N/A; Fits 1969 Pontiac Catalina, N/A.

Common Issues This Part Helps Address

Weak or uneven cabin heat
Coolant seepage from a failing heater core
Restricted heat transfer inside the HVAC system
Corrosion-related heater core deterioration
Restoration needs for classic GM heating systems

Installation Notes and Tips

Verify tube size, core dimensions, and heater box clearance before installation. This heater core is listed for vehicles equipped with air conditioning, and fitment notes include late-style Pontiac Bonneville and Catalina applications for 1969 models. Confirm the vehicle’s HVAC configuration against the part number 98535 before removal of the original core.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements, supporting a direct replacement approach for restoration and repair work. Part number 98535 is engineered for the specified classic Buick, Chevrolet, Oldsmobile, and Pontiac applications.

This part fits 47 vehicles

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

Year	Make	Model	Submodel	Position	Notes
1972	Buick	Skylark	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1972	Chevrolet	El Camino	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1972	Chevrolet	Monte Carlo	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1972	Oldsmobile	Custom Cruiser	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1972	Oldsmobile	Cutlass	S	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1972	Oldsmobile	Cutlass	Base	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1972	Oldsmobile	Cutlass Supreme	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1972	Pontiac	Grand Prix	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1972	Pontiac	GTO	—	N/A	w/ AC; Heater Core
1972	Pontiac	LeMans	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1971	Buick	Skylark	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1971	Chevrolet	El Camino	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1971	Chevrolet	Monte Carlo	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1971	Oldsmobile	Cutlass	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1971	Oldsmobile	Cutlass Supreme	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1971	Pontiac	Grand Prix	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1971	Pontiac	GTO	—	N/A	w/ AC; Heater Core
1971	Pontiac	LeMans	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Buick	Skylark	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Chevrolet	Bel Air	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Chevrolet	Caprice	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Chevrolet	El Camino	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Chevrolet	Impala	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Chevrolet	Monte Carlo	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Oldsmobile	Cutlass	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Oldsmobile	Cutlass Supreme	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Pontiac	Bonneville	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Pontiac	Catalina	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Pontiac	Grand Prix	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1970	Pontiac	GTO	—	N/A	w/ AC; Heater Core
1970	Pontiac	LeMans	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Buick	Skylark	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Chevrolet	Bel Air	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Chevrolet	Caprice	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Chevrolet	El Camino	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Chevrolet	Impala	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Oldsmobile	Cutlass	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Oldsmobile	Cutlass Supreme	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Pontiac	Bonneville	—	N/A	Late Style; w/ AC; Heater Core
1969	Pontiac	Catalina	—	N/A	Late Style; w/ AC; Heater Core
1969	Pontiac	Grand Prix	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1969	Pontiac	GTO	—	N/A	w/ AC; Heater Core
1969	Pontiac	LeMans	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1968	Buick	Skylark	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1968	Oldsmobile	Cutlass	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1968	Oldsmobile	Cutlass Supreme	—	N/A	Compatible with vehicles equipped with air conditioning.; Heater Core
1968	Pontiac	GTO	—	N/A	w/ AC; Heater Core
No rows match your filter.

Directly replaces or cross-references 27 part numbers

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

APDI — 9010064BBB Industries — 8226Four Seasons — 98535Gates — 2200Global Parts Distributors LLC — 1811305Spectra Premium — 94535UAC — HT398226C906122501202791063982265545357022007091251560003156333630147824603024660302482313691913199652484058GM9059GM90612H2258HT398226ZH120

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