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

Agility Auto Parts Radiators 8010161

Radiator, RADIATOR

Part Number: RDR-8010161

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

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: Today

...Loading

Estimated Ship Date: 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: Today

...Loading

Estimated Ship Date: Today

Be Cool Show & Go Modules 81913

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: Mar 26, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 26, 2026 if ordered today

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: Today

...Loading

Estimated Ship Date: Today

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: Mar 16, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 16, 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: Today

...Loading

OER Authorized Heater Cores 3027265

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: Today

...Loading

Estimated Ship Date: Today

GMB High Performance Water Pumps 130-1250HP

Water Pump, Performance, High Volume, Aluminum, Buick, Checker, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: GMB-130-1250HP

3.89 out of 5 stars ( 9 )

Estimated Ship Date: Mar 23, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 23, 2026 if ordered today

GMB OE Replacement Water Pumps 130-1230

Water Pump, OE Replacement, Cast Iron, Chevy, GMC, 292, Each

Part Number: GMB-130-1230

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 23, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 23, 2026 if ordered today

Hayden Fluid Cooler Mounting Kits 251

Fluid Cooler Mounting, Plastic, Natural, Kit

Part Number: HDA-251

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: 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: Mar 26, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 26, 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: Mar 9, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 9, 2026 if ordered today

Be Cool Show & Go Modules 81313

Power Cooling Modules, Show & Go, Aluminum, Polished, Chevy, GMC, SUV/Van/Pickup, Kit

Part Number: BCI-81313

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 26, 2026 if ordered today

MotoRad Thermostats 200-195

Thermostat, 195 Degrees F, Stainless Steel, Each

Part Number: SNN-200-195

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Johnson's Radiator Works Engine Swap Radiators 5-7387-9-3

Radiator 1973-1987 Chevrolet Truck LS 1.250" top right outlet 1.500" bottom right (REQUIRES BIG BLOCK MOUNTS)

Part Number: JRW-5-7387-9-3

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 12, 2026 if ordered today

Four Seasons Remanufactured Air Conditioning Compressors 57096

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

Part Number: FSS-57096

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 10, 2026 if ordered today

14 Inch 1,300 CFM Mishimoto Electric Fan and Shroud Kit MMFS-CK-78

Fan and Shroud Kit, Dual Electric Fan, Natural Aluminum Shroud, Bolt-on, Chevy, GMC, Kit

Part Number: MIO-MMFS-CK-78

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Mar 5, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 5, 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: Today

...Loading

Estimated Ship Date: Today

Vintage Air Duct Hose Adapters 623215

Tubing Couplers, Replacement, Louver Hose Adapter, Driver Side, Plastic, Black, 2.5 in. Diameter Inlet, Chevy, GMC, Each

Part Number: VTA-623215

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

GMB Replacement Fan Clutches 920-2060

Fan Clutch, Replacement, Severe-duty Thermal Style, Clockwise Rotation, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Olds, Pontiac, Each

Part Number: GMB-920-2060

Not Yet Reviewed

Estimated Ship Date: Mar 20, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 20, 2026 if ordered today

Four Seasons Water Necks 84899

Water Neck, Replacement, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: FSS-84899

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

PRW Water Necks 5292270

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

Part Number: PQX-5292270

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: 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: Today

...Loading

Estimated Ship Date: Today

PRW Competition+ Mechanical Water Pumps 1435022

Water Pump, Mechanical, High-Volume, Clockwise, Aluminum, Black, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: PQX-1435022

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 22, 2026 if ordered today

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: Today

...Loading

Estimated Ship Date: Today