1981 GMC K1500 Cooling & Heating

Fan, Flex-Type, Wide Blade, Clockwise, 19.312 in. Diameter, Stainless Steel Blades/Steel Hub, Universal, Each

Part Number: FLX-105496

4.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

Radiator Fan Combo, Performance Fit, Aluminum, Natural, Downflow, 2-Row, Dual Fan, Chevy, GMC, Kit

Part Number: GRI-CU-00013-LS

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Fan Clutches, Heavy-duty Thermal, Clockwise Rotation, Buick, Cadillac, Chevy, Chrysler, Dodge, Ford, GMC, Jeep, Olds, Plymouth, Pontiac, Each

Part Number: HDA-2947

4.74 out of 5 stars ( 81 )

Estimated Ship Date: Today

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

Part Number: SUM-382177

4.7 out of 5 stars ( 67 )

Thermostat, 180 Degree, High-Flow, Copper/Brass, Each

Part Number: MRG-4364

4.11 out of 5 stars ( 114 )

Estimated Ship Date: Today

Water Pump, Electric, 35 gpm, Die-Cast Aluminum, Black Powdercoated, Chevy, Small Block, Each

Part Number: PRO-66225BK

4.0 out of 5 stars ( 24 )

Estimated Ship Date: Today

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Water Pump, Mechanical, Standard-volume, Iron, Natural, Clockwise Rotation, Each

Part Number: ADO-252-595

4.83 out of 5 stars ( 23 )

Estimated Ship Date: Today

Transmission Oil Cooler, Plate, Natural, 11 in. x 7.5 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-677

4.61 out of 5 stars ( 23 )

Estimated Ship Date: Today

Radiator, Aluminum, Natural, 3-Row, Chevy, Pontiac, GMC, Buick, Oldsmobile, Each

Part Number: FLD-RGM-3R3319-A

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Radiator Module, LS Modified, Dual Fan, Aluminum, Black, Automatic Transmission, Chevy, GMC, Each

Part Number: DWR-6239018A

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Radiator, Performance, Aluminum, Polished, Downflow, 2 Row, with Transmission Cooler, 1.5 in. Lower Outlet, Chevrolet, GMC, Each

Part Number: RAD-GMT556A21-1

Not Yet Reviewed

Estimated Ship Date: Today

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Fan Clutch, Engine Cooling, Standard Thermal Style, Each

Part Number: ADO-15-80245

4.58 out of 5 stars ( 19 )

Estimated Ship Date: Today

Radiator Fan, Dual, Electric, Jetstreme, Nylon, Black, 12.0 in. Diameter, 2,300 cfm, Each

Part Number: MAR-MJS23K

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Radiator, Performance, Aluminum, Polished, Crossflow, 2 Row, Transmission Cooler, Chevy, GMC, Truck, Each

Part Number: RAD-GMT556A

3.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Radiator, Dominator Series, Crossflow, Aluminum, Natural, Chevy, GMC, Manual, GM LS Series Engine Swap, Each

Part Number: GRI-8-00013-LS

3.04 out of 5 stars ( 26 )

Estimated Ship Date: Today

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Radiator and Fan, Exact Fit Combo, Aluminum, Crossflow, 2-Row, Dual Fan, Chevy, GMC, Kit

Part Number: GRI-CU-70123

3.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Water Pump, Mechanical, Long, High-Volume, Aluminum, Polished, Chevy, Small Block, Each

Part Number: PRO-67264

3.83 out of 5 stars ( 58 )

Estimated Ship Date: Today

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Electric Fan Mounting Brackets, Nylon, Black, Kit

Part Number: FSS-53014

4.74 out of 5 stars ( 53 )

Estimated Ship Date: Today

Fan, Clutch-Type, Clockwise, 19 in. Diameter, Steel Blades/Steel Hub, Universal, Each

Part Number: DER-17119

4.29 out of 5 stars ( 21 )

Estimated Ship Date: Today

Water Pump, Mechanical, Action Plus, Long, High-Volume, Aluminum, Natural, Chevy, Small Block, Each

Part Number: WND-9240

4.47 out of 5 stars ( 43 )

Estimated Ship Date: Today

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Radiator, Crossflow, Dual-Row, Automatic Transmission, Aluminum, Natural, 28.00 in. Wide, 19 in. High, 3.0 in. Thick, Each

Part Number: GRI-8-70013

2.67 out of 5 stars ( 15 )

Estimated Ship Date: Today

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Radiator Fan Combo, Performance Fit, Aluminum, Natural, Crossflow, 2-Row, Dual Fan, Chevy, GMC, Kit

Part Number: GRI-CU-00013

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 9, 2026 if ordered today

• Oversize $54.99

Radiator Fan, Dual, Electric, Jetstreme, Nylon, Black, 12.0 in. Diameter, 2,600 cfm, Each

Part Number: MAR-MJS26K

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Water Pump, Mechanical, Long, High-Volume, Aluminum, Polished, Clockwise, Chevy, Small Block, Each

Part Number: EDL-8821

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Thermostat, High Performance, Mechanical, 53mm Outside Diameter, 160 degrees, High-flow, AMC, Buick, Cadillac, Chrysler, Ford, Hudson, Each

Part Number: EDL-8603

4.56 out of 5 stars ( 16 )

Estimated Ship Date: Today