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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.

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Results 1 - 25 of 25

Reach Cooling Heater Cores 18-11691

Reach Cooling Heater Cores 18-11691

Reach Cooling Heater Cores 18-11691

Heater Core, Aluminum, Natural, Chevy, Cadillac, GMC, Each

Part Number: RCG-18-11691

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Reach Cooling Heater Cores 18-11693

Reach Cooling Heater Cores 18-11693

Reach Cooling Heater Cores 18-11693

Heater Core, Aluminum, Natural, Chevy, GMC, Each

Part Number: RCG-18-11693

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Reach Cooling Heater Cores 18-11695

Reach Cooling Heater Cores 18-11695

Reach Cooling Heater Cores 18-11695

Heater Core, Aluminum, Natural, Chevy, GMC, Each

Part Number: RCG-18-11695

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Universal Air Conditioner Heater Cores HT 8240C

Universal Air Conditioner Heater Cores HT 8240C

Universal Air Conditioner Heater Cores HT 8240C

Heater Core, Replacement, Aluminum, Natural, Cadillac, Chevrolet, GMC, Each

Part Number: UAC-HT8240C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 399142C

Universal Air Conditioner Heater Cores HT 399142C

Universal Air Conditioner Heater Cores HT 399142C

HVAC Heater Core

Part Number: UAC-HT399142C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Reach Cooling Heater Cores for 1991-2005 ASTRO, SAFARI - 18-11815

Reach Cooling Heater Cores for 1991-2005 ASTRO, SAFARI - 18-11815

Reach Cooling Heater Cores for 1991-2005 ASTRO, SAFARI - 18-11815

Heater Core

Part Number: RCG-18-11815

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Universal Air Conditioner Heater Cores HT 9077C

Universal Air Conditioner Heater Cores HT 9077C

Universal Air Conditioner Heater Cores HT 9077C

Heater Core, Replacement, Aluminum, Natural, Chevrolet, GMC, Each

Part Number: UAC-HT9077C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 399078C

Universal Air Conditioner Heater Cores HT 399078C

Universal Air Conditioner Heater Cores HT 399078C

HVAC Heater Core

Part Number: UAC-HT399078C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 398357C

Universal Air Conditioner Heater Cores HT 398357C

Universal Air Conditioner Heater Cores HT 398357C

HVAC Heater Core

Part Number: UAC-HT398357C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores for 1982-1992 CAMARO, FIREBIRD - HT 399083C

Universal Air Conditioner Heater Cores for 1982-1992 CAMARO, FIREBIRD - HT 399083C

Universal Air Conditioner Heater Cores for 1982-1992 CAMARO, FIREBIRD - HT 399083C

HVAC Heater Core

Part Number: UAC-HT399083C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 399094C

Universal Air Conditioner Heater Cores HT 399094C

Universal Air Conditioner Heater Cores HT 399094C

HVAC Heater Core

Part Number: UAC-HT399094C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 399090C

Universal Air Conditioner Heater Cores HT 399090C

Universal Air Conditioner Heater Cores HT 399090C

HVAC Heater Core

Part Number: UAC-HT399090C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 8338C

Universal Air Conditioner Heater Cores HT 8338C

Universal Air Conditioner Heater Cores HT 8338C

HVAC Heater Core

Part Number: UAC-HT8338C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 398010C

Universal Air Conditioner Heater Cores HT 398010C

Universal Air Conditioner Heater Cores HT 398010C

HVAC Heater Core

Part Number: UAC-HT398010C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 8221C

Universal Air Conditioner Heater Cores HT 8221C

Universal Air Conditioner Heater Cores HT 8221C

Heater Core, Replacement, Aluminum, Natural, Chevrolet, GMC, Each

Part Number: UAC-HT8221C

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Reach Cooling Heater Cores 18-11440

Reach Cooling Heater Cores 18-11440

Reach Cooling Heater Cores 18-11440

Heater Core

Part Number: RCG-18-11440

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Universal Air Conditioner Heater Cores for 1986-1989 TAURUS, SABLE, 1988-1989 CONTINENTAL - HT 398003C

Universal Air Conditioner Heater Cores for 1986-1989 TAURUS, SABLE, 1988-1989 CONTINENTAL - HT 398003C

Universal Air Conditioner Heater Cores for 1986-1989 TAURUS, SABLE, 1988-1989 CONTINENTAL - HT 398003C

HVAC Heater Core

Part Number: UAC-HT398003C

Not Yet Reviewed

Estimated Ship Date: Nov 19, 2025 if ordered today

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Estimated Ship Date: Nov 19, 2025 if ordered today

Universal Air Conditioner Heater Cores HT 398214C

Universal Air Conditioner Heater Cores HT 398214C

Universal Air Conditioner Heater Cores HT 398214C

HVAC Heater Core

Part Number: UAC-HT398214C

Not Yet Reviewed

Estimated Ship Date: Nov 19, 2025 if ordered today

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Estimated Ship Date: Nov 19, 2025 if ordered today

Reach Cooling Heater Cores for 1984-1988 FIERO - 18-11789

Reach Cooling Heater Cores for 1984-1988 FIERO - 18-11789

Reach Cooling Heater Cores for 1984-1988 FIERO - 18-11789

Heater Core

Part Number: RCG-18-11789

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Reach Cooling Heater Cores 18-11795

Reach Cooling Heater Cores 18-11795

Reach Cooling Heater Cores 18-11795

Heater Core

Part Number: RCG-18-11795

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Reach Cooling Heater Cores 18-12157

Reach Cooling Heater Cores 18-12157

Reach Cooling Heater Cores 18-12157

Heater Core

Part Number: RCG-18-12157

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Reach Cooling Heater Cores 18-12119

Reach Cooling Heater Cores 18-12119

Reach Cooling Heater Cores 18-12119

Heater Core

Part Number: RCG-18-12119

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Reach Cooling Heater Cores 18-11742

Reach Cooling Heater Cores 18-11742

Reach Cooling Heater Cores 18-11742

Heater Core

Part Number: RCG-18-11742

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Reach Cooling Heater Cores 18-11704

Reach Cooling Heater Cores 18-11704

Reach Cooling Heater Cores 18-11704

Heater Core

Part Number: RCG-18-11704

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Universal Air Conditioner Heater Cores for 1990-1996 LUMINA APV, SILHOUETTE, TRANS SPORT - HT 8264C

Universal Air Conditioner Heater Cores for 1990-1996 LUMINA APV, SILHOUETTE, TRANS SPORT - HT 8264C

Universal Air Conditioner Heater Cores for 1990-1996 LUMINA APV, SILHOUETTE, TRANS SPORT - HT 8264C

HVAC Heater Core

Part Number: UAC-HT8264C

Not Yet Reviewed

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