1990 GMC Heater Cores

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

Part Number: RCG-18-11691

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Estimated Ship Date: Today

Heater Core, Stock Replacement, 5/8 in. Inlet, 3/4 in. Outlet, Aluminum, Chevy, GMC, Truck, SUV, Without A/C, Each

Part Number: RDR-9010080

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Estimated Ship Date: Today

Heater Core, Stock Replacement, 5/8 in. Inlet, 3/4 in. Outlet, Aluminum, Chevy, GMC, Truck, SUV, With A/C, Each

Part Number: RDR-9010079

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Estimated Ship Date: Today

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

Part Number: RCG-18-11693

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: RCG-18-11695

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Estimated Ship Date: Today

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

Part Number: RDR-9010170

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Heater Core, Replacement, Chevrolet, GMC, Each

Part Number: OSC-98552

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Estimated Ship Date: May 11, 2026 if ordered today

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

Part Number: FSS-98616

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Estimated Ship Date: Today

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

Part Number: FSS-90611

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Estimated Ship Date: May 11, 2026 if ordered today

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Heater Core

Part Number: RCG-18-11815

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Estimated Ship Date: Today

HVAC Heater Core, HVAC HEATER CORE

Part Number: RDR-9010165

3.0 out of 5 stars ( 1 )

Estimated Ship Date: May 6, 2026 if ordered today

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Heater Core

Part Number: RCG-18-11834

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Estimated Ship Date: Jun 4, 2026 if ordered today

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Heater Core

Part Number: RCG-18-11356

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Estimated Ship Date: Jun 5, 2026 if ordered today

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