OER Heater Cores

3.89 out of 5 stars 19 Customer Reviews

OER heater cores are direct-fit replacement parts you can count on to supply the OE-fit and function you're expecting. These heater cores replace your leaking, missing, or non-working core and fit directly into original heater box assembly. They are built to original equipment specifications using the correct factory materials. When it's time to replace your heater core, look to OER for durable performance.

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OER Heater Cores 3011432

Heater Core, Copper/Brass, Replacement, Buick, Chevrolet, Oldsmobile, Pontiac, Without A/C, Each

Part Number: OER-3011432

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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OER Heater Cores 3441180

Heater Core, Replacement, Copper/Brass, Natural, Air Conditioning, Dodge, Plymouth, Each

Part Number: OER-3441180

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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OER Heater Cores for 1967 CAMARO - 3011154

Heater Core, Copper/Brass, Replacement, Chevy, Without A/C, Each

Part Number: OER-3011154

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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OER Heater Cores 3025322

Heater Core, Copper/Brass, Replacement, Chevrolet, GMC, With A/C, Each

Part Number: OER-3025322

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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OER Heater Cores for 1970-1981 CAMARO, FIREBIRD - 3020374

Heater Core, Copper/Brass, Replacement, Chevrolet, Pontiac, With A/C, Each

Part Number: OER-3020374

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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OER Heater Cores for 1969 CAMARO, 1968 CHEVY II, 1969-1970 NOVA - 3018864

Heater Core, Copper/Brass, Replacement, Chevy, Without A/C, Each

Part Number: OER-3018864

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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OER Heater Cores 2277023

Heater Core, Copper/Brass, Replacement, Dodge, Plymouth, Without A/C, Each

Part Number: OER-2277023

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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OER Heater Cores for 1968 CAMARO, CHEVY II, 1967-1968 FIREBIRD - 3013319

Heater Core, Copper/Brass, Replacement, Chevy, Pontiac, Without A/C, Each

Part Number: OER-3013319

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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OER Heater Cores 3009917

Heater Core, Copper/Brass, Replacement, Chevrolet, Pontiac, With A/C, Each

Part Number: OER-3009917

Not Yet Reviewed

Estimated Ship Date: Today

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OER Heater Cores 2932999

Heater Core, Copper/Brass, Replacement, Dodge, Plymouth, Without A/C, Each

Part Number: OER-2932999

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

OER Heater Cores 3027265

Heater Cores,1973-87 Chevrolet/GMC Truck W/ AC - Copper/Brass Heater Core (7-1/8" X 7-1/2" X 2")

Part Number: OER-3027265

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

OER Heater Cores 3011414

Heater Core, Copper/Brass, Replacement, Cadillac, Chevrolet, Without A/C, Each

Part Number: OER-3011414

Not Yet Reviewed

Estimated Ship Date: Today

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OER Heater Cores 3004814

Heater Core, Copper/Brass, Replacement, Chevrolet, Without A/C, Each

Part Number: OER-3004814

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

OER Heater Cores for 1962-1967 CHEVY II - 3153164

Heater Cores,1962-67 Chevy II/Nova 6-Cyl & SB V8 Engines - Copper/Brass Heater Core (7-3/4" X 6-3/8" X 2-1/2")

Part Number: OER-3153164

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

OER Heater Cores 2936684

Heater Core, Copper/Brass, Replacement, Chrysler, Dodge, Plymouth, Without A/C, Each

Part Number: OER-2936684

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

OER Heater Cores 3157459

Heater Cores,1963-67 Chevrolet Impala/Full-Size W/ AC - Copper/Brass Heater Core (9-1/2" X 6-3/8" X 2-1/2")

Part Number: OER-3157459

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

OER Heater Cores for 1967-1968 CAMARO - 3011477

Heater Core, Copper/Brass, Replacement, Chevy, Without A/C, Each

Part Number: OER-3011477

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

OER Heater Cores for 1962 BEL AIR, BISCAYNE, IMPALA - 3153941

Heater Core, Copper/Brass, Replacement, Chevrolet, Without A/C, Each

Part Number: OER-3153941

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

OER Heater Cores 3015169

Heater Cores,1967-75 Chevrolet/GMC Truck W/O A/C - Copper/Brass Heater Core (9-1/2"X 6-3/8" X 2")

Part Number: OER-3015169

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

OER Heater Cores 3145850

Heater Core, Copper/Brass, Replacement, Chevrolet, GMC, Recirculating Heater, Each

Part Number: OER-3145850

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

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