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

PRW High-Flow Billet Electric Water Pumps 4535021

Water Pump, Electric, 50 gpm, Billet Aluminum, Polished, Chevy, Small Block, Each

Part Number: PQX-4535021

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Perma-Cool Turbo Flex Heavy-Duty Fan Clutches 25100

Perma-Cool Turbo Flex Heavy-Duty Fan Clutches 25100

Fan Clutch, Turbo Flex, Heavy-Duty, Non-thermal, 7.25 in. Diameter, Each

Part Number: PRM-25100

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Four Seasons Ultra-Cool Transmission Oil Coolers 53000

Transmission Oil Cooler, Ultra-Cool, Tube and Fin, 4 Rows, Aluminum, 0.375 in. Hose Barb Inlet/Outlet, Each

Part Number: FSS-53000

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

14 Inch 2,400 CFM Brothers Trucks Radiator Shrouds with Fan AFS87C2

73-87 CHVY/GMC TRCK AL SHROUD W/FANS-V8

Part Number: HCT-AFS87C2

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Hayden Fluid Coolers 457

Fluid Cooler, Engine, Tube, Fin, Natural, 10 in. x 12.25 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-457

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

12 Inch 1,155 CFM Maradyne Jetstreme Electric Fan MJS13K

Radiator Fan, Electric, Jetstreme, Nylon, Black, 12.0 in. Diameter, 1,155 cfm, Each

Part Number: MAR-MJS13K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Be Cool Custom-Fit Aluminum Radiators 60013

Radiator, Exact-Fit, Aluminum, Natural, Chevy, GMC, Each

Part Number: BCI-60013

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

OER GM Radiator Overflow Jar Caps 15588032

Overflow Tank Components, Bottle Cap, Reproduction, Black Plastic, White Lettering, Chevrolet, GMC, Each

Part Number: OER-15588032

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Be Cool Show & Go Modules 81913

Radiators, Show & Go Modules, Crossflow, Aluminum, Polished, Dual Fan, Replaces 28.5 in. Core, Not for Use with Diesel Engines, Chevrolet, GMC, Kit

Part Number: BCI-81913

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Flex-A-Lite Billet Aluminum Radiator Caps 126844

Radiator Cap, Round, 16 psi Maximum Pressure, Billet Aluminum, Black, Flex-A-Lite Logo, Buick, Cadillac, Chevy, Chrysler, Ford, GMC, Volkswagen, Each

Part Number: FLX-126844

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Frostbite Performance Cooling Aluminum Radiators FB166

Radiator, Aluminum, 3-Row, Polished, Crossflow, Chevy, GMC, Each

Part Number: FBR-FB166

2.83 out of 5 stars ( 12 )

Estimated Ship Date: Jan 29, 2026 if ordered today

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Estimated Ship Date: Jan 29, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Plastic/Aluminum Radiators SUM-380535

2.75 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/5/2026

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Hayden Fluid Cooler Mounting Kits 153

Fluid Cooler Mounting, Steel, Natural, Kit

Part Number: HDA-153

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Four Seasons Electric Fan Kits 37141

Electric Fan, Pusher, 14 in., Black, Each

Part Number: FSS-37141

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Four Seasons Air Conditioning Replacement Components 16152

Evaporator Core Repair Kit, Air Conditioning Replacement Component, Buick, Cadillac, Chevy, Ford, GMC, Lincoln, Mercury, Oldsmobile, Pontiac, Kit

Part Number: FSS-16152

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Mr. Gasket Mechanical Water Pumps 7012NG

Water Pump, Mechanical, High-Volume, Long, Small Block, Iron, Black, Each

Part Number: MRG-7012NG

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Reach Cooling Radiators 41-709

Radiator

Part Number: RCG-41-709

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Summit Racing™ Radiator Overflow Tank Caps SUM-RP24321

Radiator Overflow Tank Cap, 1974-84 Chevy/GMC Truck, Repl GM#340750, Each

Part Number: SUM-RP24321

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Perma-Cool Engine Oil Coolers 62189

Fluid Cooler, Engine, 2-Pass, Tube and Fin, Aluminum, Natural, 3.50 in. x 14.00 in. x 1.500 in., Each

Part Number: PRM-62189

Not Yet Reviewed

Estimated Ship Date: Apr 2, 2026 if ordered today

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Estimated Ship Date: Apr 2, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Hayden Fluid Coolers 462

4.25 out of 5 stars ( 9 )

Estimated Ship Date: Monday 1/5/2026

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PRW Water Necks 5292270

WATER NECK, MANIFOLD FILLER, CHEV, SB-BB, 90° Alum, Black

Part Number: PQX-5292270

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Be Cool Factory Fit Modules 86013

Power Cooling Modules, Exact Fit, Aluminum, Natural, Chevy, SUV, Pickup, Kit

Part Number: BCI-86013

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Four Seasons Remanufactured Air Conditioning Compressors 57221

Air Conditioning Compressor, Steel, R4 Heavy, R-134A, Each

Part Number: FSS-57221

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

US Motor Works Thermal Fan Clutches 22049

Fan Clutches, Standard Thermal, AMC, Buick, Cadillac, Chevy, Dodge, GMC, Jeep, Oldsmobile, Pontiac, Each

Part Number: UMW-22049

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

AFCO Racing LS Swap Direct-Fit Radiators 84242-B-DB-Y

Radiator, Fan, Aluminum, Crossflow, Black, 34.190 in. Wide, 20.630 in. High, 6.000 in. Thick, LS Conversion, Chevy/GMC, Kit

Part Number: AFC-84242-B-DB-Y

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

MotoRad Thermostats 200-195

Thermostat, 195 Degrees F, Stainless Steel, Each

Part Number: SNN-200-195

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Be Cool Factory Fit Modules 82313

Power Cooling Modules, Exact Fit, Aluminum, Natural, Chevy, GMC, SUV, Van, Pickup, Kit

Part Number: BCI-82313

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today