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Heater Core

Your vehicle’s heater core is a critical component of its climate control system. When it’s in good working order, it’ll keep the cabin of your ride warm and comfy and...

Your vehicle’s heater core is a critical component of its climate control system. When it’s in good working order, it’ll keep the cabin of your ride warm and comfy and your windshield free of fog or frost. But when your heater core goes bad, you may experience little or no cabin heat, coolant leaking on your vehicle’s floor, or your windshield may fog up when you turn the defroster is on. The good news is, we’re here to help with a wide selection of stock replacement heater cores that will restore your vehicle’s climate control system to peak performance.

Resembling a small radiator, the heater core is located inside the...

Your vehicle’s heater core is a critical component of its climate control system. When it’s in good working order, it’ll keep the cabin of your ride warm and comfy and your windshield free of fog or frost. But when your heater core goes bad, you may experience little or no cabin heat, coolant leaking on your vehicle’s floor, or your windshield may fog up when you turn the defroster is on. The good news is, we’re here to help with a wide selection of stock replacement heater cores that will restore your vehicle’s climate control system to peak performance.

Resembling a small radiator, the heater core is located inside the HVAC plenum which is usually tucked behind the dashboard. Replacement cores are commonly manufactured from aluminum or a combination of brass and copper, and most feature OE inlet/outlet ports and factory mounting locations for a simplified installation.

Whatever you drive it’s a good bet we have a heater core that’ll bring the BTUs back to your ride’s heating system. You can shop OE-quality heater cores from trusted brands like Hayden Automotive, Mopar Replacement, ACDelco, Motorcraft, Crown Automotive, and many more.

Individual Parts

Results 1 - 25 of 40

Heater Core, Copper/Brass, Replacement, Buick, Chevy, GMC, Oldsmobile, Pontiac, With Air Conditioning, Each

Part Number: SUM-382126

4.38 out of 5 stars ( 21 )

Estimated Ship Date: Today

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Heater Core, Stock Replacement, 3/4 in. Inlet, 5/8 in. Outlet, Aluminum, Buick, Chevy, Oldsmobile, Pontiac, With A/C, Each

Part Number: RDR-9010089

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, Ford, Each

Part Number: FSS-96571

Not Yet Reviewed

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HEATER CORE; WITH A/C; ALUMINUM

Part Number: BDY-HTR010167

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Heater Cores, Aluminum, Natural, 0.625 in. Inlet, 0.750 in. Outlet, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, without AC, Each

Part Number: RDR-9010067

2.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Heater Core, Replacement, Aluminum, Natural, Ford, Mercury, Each

Part Number: RDR-9010090

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

Heater Core, Replacement, Stock Inlet/Outlet Size, Copper/Brass, Natural, Buick, Oldsmobile, Pontiac, Each

Part Number: FSS-91545

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Heater Core, Stock Replacement, 5/8 in. Inlet, 3/4 in. Outlet, Aluminum, Buick, Chevy, Cadillac, Oldsmobile, Pontiac, With A/C, Each

Part Number: RDR-9010086

Not Yet Reviewed

Estimated Ship Date: Today

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Heater Core, Replacement, Aluminum, Natural, Each

Part Number: RCG-18-11305

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Heater Core, Replacement, Stock Inlet/Outlet Size, Copper/Brass, Natural, Mercury, Each

Part Number: FSS-91561

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Heater Core, Replacement, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: OSC-98532

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Heater Core, Replacement, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: OSC-98535

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Heater Core, Replacement, Aluminum, Natural, Ford, Mercury, Each

Part Number: RCG-18-12054

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, Buick, Cadillac, Chevrolet, Pontiac, Each

Part Number: FSS-98530

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Heater Cores, 0.625 in. Inlet/Outlet, Ford, Mercury, Each

Part Number: RDR-9010047

2.0 out of 5 stars ( 1 )

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, Ford, Mercury, Each

Part Number: FSS-98579A

Not Yet Reviewed

Estimated Ship Date: Today

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Heater Cores, Classic OEM, Copper/Brass, Natural, Ford, Mercury, Each

Part Number: SUM-382195

Not Yet Reviewed

Estimated Ship Date: Today

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Heater Core

Part Number: RCG-18-11858

Not Yet Reviewed

Estimated Ship Date: Jun 12, 2026 if ordered today

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Estimated Ship Date: Jun 12, 2026 if ordered today

Heater Cores, Aluminum, Natural, 0.625 in. Inlet, 0.750 in. Outlet, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: RDR-9010100

2.0 out of 5 stars ( 1 )

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Heater Core

Part Number: RCG-18-12053

Not Yet Reviewed

Estimated Ship Date: Jun 12, 2026 if ordered today

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Estimated Ship Date: Jun 12, 2026 if ordered today

Heater Core, Replacement, Aluminum, Natural, Ford, Lincoln, Mercury, Sterling Truck, Each

Part Number: RCG-18-12061

Not Yet Reviewed

Estimated Ship Date: Jun 12, 2026 if ordered today

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Estimated Ship Date: Jun 12, 2026 if ordered today

Heater Core

Part Number: RCG-18-11759

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

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Estimated Ship Date: Jun 11, 2026 if ordered today

Heater Core

Part Number: RCG-18-12182

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

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Estimated Ship Date: Jun 11, 2026 if ordered today

HVAC Heater Core

Part Number: UAC-HT399078C

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today