1981 CHEVROLET K20 Heater Cores

Heater Core, Copper/Brass, Replacement, Chevy, GMC, SUV, Pickup, With Air Conditioning, Each

Part Number: SUM-382177

4.68 out of 5 stars ( 62 )

Estimated Ship Date: Friday 1/2/2026

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

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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

Part Number: RCG-18-11693

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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: May 14, 2026 if ordered today

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• Special Order

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

Part Number: RCG-18-11695

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

HVAC Heater Core, OSC Cooling Products 98553 New Heater Core

Part Number: OSC-98553

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Drop Ship
• Special Order