1981 CHEVROLET K20 - In Stock Filter Options - Vendor In Stock Filter Options Parts & Accessories

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 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 2026 if ordered today

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Summit Racing™ Plastic/Aluminum Radiators SUM-380535

2.75 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026

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Yukon Gear & Axle Ring and Pinion Sets YG GM9.5-373 GM 9.5 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 9.5 in., 14-Bolt, 1997-2013, With 33 Spline C-clip Axles, Set

Part Number: YGA-24166

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM9.5-342 GM 9.5 in. 3.42 Gears

Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Rotation, GM 9.5 in., Set

Part Number: YGA-24502

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Hays Street 450 Clutch Conversion Kits 91-1006

Clutch Kit, Hays Street 450 Clutch, 10-spline, 12 in. Disk, Diaphragm Pressure Plate, Chevy/GMC, Kit 10-spline

Part Number: HAY-91-1006

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

Brothers Trucks Seat Belts BELTKT6-2BK

Seat Belts, Shoulder and Lap Belt Type, Black, Fits Models Equipped with Bucket Front Seats, Chevrolet, GMC, Pair

Part Number: HCT-BELTKT6-2BK

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

COMP Cams Xtreme Energy Pro-Plasma Nitrided Camshafts 12-250-20

COMP Cams Xtreme Energy Pro-Plasma Nitrided Camshafts 12-250-20

Camshaft, Hydraulic Flat Tappet, Advertised Duration 284/296, Lift .507/.510, Chevy, Small Block, Each

Part Number: CCA-12-250-20

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

PerTronix Flame-Thrower Race HEI Distributors D71071

PerTronix D71071 Flame-Thrower Race Distributor HEI III Chevrolet Small Block/Big Block Red Cap with multiple

Part Number: PNX-D71071

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Tuff Country EZ-Ride Leaf Springs 18670

Lift Spring, Leaf-Style, Front, Black, 4WD, Chevy, GMC, 6 inch Lift, Each

Part Number: TFY-18670

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Lift Leaf Springs SUM-708206

5 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026

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Brothers Trucks Bumpers RRB91ST

Bumpers, Rear, Stock Style, Steel, Chrome, without Impact Strip, Fits Fleetside Models Only, Chevrolet, GMC, Each

Part Number: HCT-RRB91ST

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Dee Zee Hex Series Cab Racks DZ 95094TB

Truck Cab Protector/Headache Rack

Part Number: DZZ-DZ95094TB

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Brothers Trucks Seat Upholstery 05-296

PLEAT, 1981-87 C/K FULL PLT VINYL/CLOTH MAR/BUR

Part Number: HCT-05-296

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

PRW Billet Aluminum 168-Tooth Flywheel 1935000

Flywheel, PQx, Billet Aluminum, 168-tooth, 13.900 lbs., SFI 1.1, Internal Engine Balance, Chevy, Each

Part Number: PQX-1935000

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Yukon Gear & Axle Differential Clutch Sets YPKGM12-PC-DG1

Differential Clutch, Steel Pack, Rear, Posi, GM, 8.875 in., Set

Part Number: YGA-16064

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Rough Country Leaf Spring Kits 8015KIT

Leaf Springs, Lifted, 6.00 in., Front, Black, U-Bolts, Chevy, GMC, Kit

Part Number: ROU-8015KIT

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Coverlay Manufacturing Door Panels 18-35N-MGR

Door Panels, Full Door, Plastic, Medium Gray, Front, Chevrolet, GMC, Pair

Part Number: CVY-18-35N-MGR

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Coverlay Manufacturing Door Panels 18-35N-DGR

Door Panels, Full Door, Plastic, Dark Gray, Front, Chevrolet, GMC, Pair

Part Number: CVY-18-35N-DGR

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Coverlay Manufacturing Door Panels 18-35N-LBL

Door Panels, Full Door, Plastic, Light Blue, Front, Chevrolet, GMC, Pair

Part Number: CVY-18-35N-LBL

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

PerTronix Flame-Thrower Street/Strip HEI Distributors with HEI III Modules D71052

PerTronix D71052 Flame-Thrower Distributor HEI III Chevrolet Small Block/Big Block Blue Cap Machine Polished w

Part Number: PNX-D71052

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM9.5-488 GM 9.5 in. 4.88 Gears

USA Standard Ring & Pinion gear set for GM 9.5" in a 4.88 ratio

Part Number: SPZ-36227

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Davis Unified Ignition GM Street/Strip D.U.I. Distributors 12720BL

Distributor, HEI, Mechanical/Vacuum Advance, Blue Cap, Chevy, Big/Small Block, Each

Part Number: DUI-12720BL

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Sherman Fenders SHE899-32BL

Fenders, Rear Outer, Left, Steel, Black EDP Coated, Chevrolet, GMC, Each

Part Number: SHI-899-32BL

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

COMP Cams Xtreme Marine Cam and Lifter Kits SK12-236-3

Cam/Lifters/Timing, Hydraulic Flat Tappet, Advertised Duration 262/268, Lift .462/.477, Chevy, Small Block

Part Number: CCA-SK12-236-3

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

Tuff Stuff Performance Power Steering Pumps 6163A

Power Steering Pump, Saginaw, GM V6, Small Block, Chrome, Integral Reservoir, Chrome, Press-Fit, Hose Barb, Female Threads, Each

Part Number: TFF-6163A

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Pioneer Street Performance Balancers 872001

Harmonic Balancer, Street Performance, Internal Balance, Nodular Iron, Black, Chevy, Small Block, 4.3L V6

Part Number: PIO-872001

4.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

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 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

1981 CHEVROLET K20 Parts and Accessories