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

Brothers Trucks Radiator Supports 04-239

1981-1987 C/K RAD SUP W/ DUAL H/L PREMIU

Part Number: HCT-04-239

Not Yet Reviewed

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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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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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14 Inch 1,570 CFM Hayden Super Duty Electric Fan 3920

Electric Fans, 14 in. Diameter, Puller, 1,570 cfm, 14.00 amps, Each

Part Number: HDA-3920

Not Yet Reviewed

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Be Cool Custom-Fit Aluminum Radiators 62013

Be Cool Custom-Fit Aluminum Radiators 62013

Radiator, Exact-Fit, Aluminum, Natural, Chevy, GMC, SUV, Van, Pickup, Each

Part Number: BCI-62013

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

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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OSC Automotive Radiators 1599

Radiator, Exact Fit, Aluminum, Plastic, Chevy, GMC, 5.0L, 5.7L, 7.4L, Each

Part Number: OSC-1599

4.4 out of 5 stars ( 5 )

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ACDelco Blower Motors 88959521

Blower Motor, Steel, Black, Wheel, Each

Part Number: ADO-15-80213

4.22 out of 5 stars ( 9 )

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Four Seasons Rapid-Cool Transmission Oil Coolers 53007

Transmission Oil Cooler, Rapid-Cool, Aluminum, Black, Plate Style, 3/8 in. Hose Barb, Each

Part Number: FSS-53007

5.0 out of 5 stars ( 1 )

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EMP Stewart Stage 1 Water Pumps 13113

Water Pump, Stage 1, Cast Iron, High-Volume, Chevy, Small Block, Long, Each

Part Number: EMP-13113

4.0 out of 5 stars ( 9 )

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GMB OE Replacement Water Pumps 130-1250

Water Pump, Mechanical, Iron, Natural, GM with Chevy, V6, Small Block V8, Each

Part Number: GMB-130-1250

3.83 out of 5 stars ( 6 )

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Hayden Rapid-Cool Transmission Oil Coolers with Thermal Bypass 696

Transmission Oil Cooler, Rapid-Cool, Thermal Bypass Plate, Natural, 11 in. x 6 in. x 0.75 in., 3/8 in. Hose Barb, Aluminum, Each

Part Number: HDA-696

5.0 out of 5 stars ( 4 )

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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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Proform Electric Water Pumps 66225C

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

Part Number: PRO-66225C

5.0 out of 5 stars ( 3 )

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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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Hayden Fluid Coolers 462

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

Part Number: HDA-462

4.22 out of 5 stars ( 9 )

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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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OSC Automotive Radiators 161

Radiator, Exact Fit, Aluminum, Plastic, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: OSC-161

3.0 out of 5 stars ( 3 )

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MotoRad Spec-R Racing Thermostats MRD100

Thermostat, Spec-R, 160 Degrees F, Stainless Steel/Copper, Universal, Each

Part Number: SNN-MRD100

Not Yet Reviewed

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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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Griffin Exact Fit Radiators 6-00123

EXACT FIT RADIATOR

Part Number: GRI-6-00123

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

EMP Stewart Stage 2 Water Pumps 23113

Water Pump, Stage 2, Aluminum, High-Volume, Long Style, Clockwise Rotation, Chevy, Small Block, Each

Part Number: EMP-23113

3.59 out of 5 stars ( 17 )

Estimated Ship Date: Today

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ACDelco Gold Engine Coolant Thermostats 12514334

Thermostat, Mechanical, Professional, 195 degrees, Standard-Flow, Each

Part Number: ADO-131-87

4.63 out of 5 stars ( 8 )

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Mishimoto X-Line Radiators MMRAD-CK-78X

Radiator, X-Line, Crossflow Style, Three-row, Aluminum, Natural, Chevy, GMC, Automatic, Each

Part Number: MIO-MMRAD-CK-78X

4.05 out of 5 stars ( 19 )

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

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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