1981 CHEVROLET K20 Cooling & Heating - In Stock Filter Options - Vendor In Stock Filter Options

Derale Stacked Plate Fluid Coolers 51008

Fluid Cooler, Plate-Type, Aluminum, Black, 10-Row, -8 AN, 4.563 in. x 13 in. x 2 in., Each

Part Number: DER-51008

5.0 out of 5 stars ( 1 )

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Four Seasons Fan Clutches 36952

Fan Clutch, Standard Thermal, AMC, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: FSS-36952

4.63 out of 5 stars ( 16 )

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14 Inch 1,250 CFM Four Seasons Electric Fan Kit 36897

Electric Fan, 14 in. Diameter, Puller/Pusher, 1,250 cfm, Black, 11.50 amps, Each

Part Number: FSS-36897

4.8 out of 5 stars ( 5 )

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Four Seasons Air Conditioning Compressors 58096

Air Conditioning Compressor, A6, R-134A, Each

Part Number: FSS-58096

5.0 out of 5 stars ( 10 )

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Summit Racing™ Direct-Fit Restoration Interior Trim Parts SUM-RP22491

Interior Vents, Dash, Defroster Grill, Rectangular, Plastic, Black Finish, Front Left or Right Side, Chevy, GMC, Truck, Each

Part Number: SUM-RP22491

Not Yet Reviewed

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Four Seasons Power Steering Oil Cooler Installation Kits 53019

Fluid Cooler, Tube and Fin, 2-row, Aluminum, Natural, 3/8 in. Hose Barb Inlet/Outlet, 2.5 x 9 x 0.75 in. Size

Part Number: FSS-53019

4.85 out of 5 stars ( 13 )

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Frostbite Performance Cooling Aluminum Radiators FB165

Radiator, Aluminum, 2-Row, Polished, Crossflow, Chevy, GMC, Each

Part Number: FBR-FB165

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Jan 28, 2026 if ordered today

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Estimated Ship Date: Jan 28, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Performance Fit 2 Row Aluminum Radiator for 1973-1991 Chevy/GMC C/K Series Truck, Blazer, Jimmy

4.25 out of 5 stars ( 12 )

Estimated Ship Date: Today

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MotoRad Thermostats 300-180

Thermostat, Standard-flow, 180 degrees F, Copper/Brass, AMC, Buick, Cadillac, Chevy, Dodge, Ford, GMC, Jeep, Mercury, Olds, Plymouth, Pontiac, Each

Part Number: SNN-300-180

Not Yet Reviewed

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Proform Electric Water Pumps 141-651

Water Pump, Electric, 35 gpm, Aluminum, Black Anodized, Chevy, Small Block, Each

Part Number: PRO-141-651

5.0 out of 5 stars ( 3 )

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Four Seasons Fan Clutches 36956

Fan Clutch, Heavy-Duty, Thermal Style, Clockwise Rotation, Buick, Cadillac, Chevy, GMC, Chrysler, Ford, Each

Part Number: FSS-36956

4.75 out of 5 stars ( 4 )

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Brothers Trucks Defrost Vents 05-163

Interior Vents, Defrost Vents, Rectangular, Plastic, Black, Fits Left or Right Sides, Chevrolet, GMC, Each

Part Number: HCT-05-163

5.0 out of 5 stars ( 1 )

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Hayden Fluid Coolers 459

Fluid Cooler, Engine, Tube, Fin, Natural, 7.5 in. x 12.5 in. x 0.75 in., 1/2 in. Inlet, Outlet, Each

Part Number: HDA-459

4.0 out of 5 stars ( 11 )

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Hayden Fluid Cooler Mounting Kits 253

Fluid Cooler Mounting, Steel, Natural, Kit

Part Number: HDA-253

4.43 out of 5 stars ( 7 )

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Hayden Fluid Coolers 401

Fluid Cooler, Transmission, Tube, Fin, Natural, 5 in. x 12.5 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-401

4.6 out of 5 stars ( 5 )

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Agility Auto Parts Heater Cores 9010079

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

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OER Authorized Dash Air Conditioning Vent Assemblies 3979751

OER® Dash vent outlet, '73-'91 Chevy, GMC car and truck, With air conditioning

Part Number: OER-3979751

Not Yet Reviewed

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ACDelco GM Genuine Parts Cooling Fan Clutches 88961767

Fan Clutches, GM OE Cooling, Standard Thermal, Clockwise Rotation, Buick, Cadillac, Chevy, GMC, Each

Part Number: ADO-15-4949

3.0 out of 5 stars ( 2 )

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Hayden Fluid Coolers 514

Fluid Cooler, Transmission, Tube, Fin, Natural, 7.5 in. x 15.875 in. x 0.75 in., 9/16 in.-18 Inlet, Outlet

Part Number: HDA-514

4.33 out of 5 stars ( 3 )

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MotoRad High Flow Thermostats 2000-180

High Flow Thermostat-180 Degrees

Part Number: SNN-2000-180

Not Yet Reviewed

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Four Seasons Ultra-Cool Transmission Oil Coolers 53022

Ultra-Cool Transmission Oil Cooler, Kit

Part Number: FSS-53022

4.9 out of 5 stars ( 10 )

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MotoRad UltraStat Thermostats 5200-160

Thermostat, UltraStat, 160 Degrees F, Stainless Steel, Each

Part Number: SNN-5200-160

3.5 out of 5 stars ( 2 )

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Four Seasons Blower Motors 35345

HVAC Blower Motor, Replacement, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: FSS-35345

5.0 out of 5 stars ( 3 )

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Agility Auto Parts Heater Cores 9010080

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

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Vintage Air Extra Clearance Top-Mount Compressor Brackets 15119-VCB

Air Conditioning Bracket, Steel, Natural, fits Long Water Pump Applications, Chevy, Small Block, Each

Part Number: VTA-15119-VCB

Not Yet Reviewed

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14 Inch 2,200 CFM Frostbite Fan and Shroud High Performance Packages FB522H

Fans, Electric, Aluminum Shroud, 14 in. Fans, Kit

Part Number: FBR-FB522H

5.0 out of 5 stars ( 1 )

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