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

USA Standard Gear Ring and Pinion Sets ZG GM8.5-488 GM 8.5/8.6 in. 4.88 Gears

Ring and Pinion Gear, 4.88:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36219

3.0 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

USA Standard Gear Ring and Pinion Sets ZG GM8.5-513 GM 8.5/8.6 in. 5.13 Gears

Ring and Pinion Gear, 5.13:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36220

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

March Performance Alternators P556

Alternator, Internal Regulator, 140 Amp, Chrome, Buick, Chevy, Oldsmobile, Pontiac, GMC, V8, Each

Part Number: MCH-P556

4.2 out of 5 stars ( 5 )

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

USA Standard Gear Ring and Pinion Gears ZG GM14T-342

Ring and Pinion Gear and Installation Kit USA Standard

Part Number: SPZ-36284

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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Estimated Ship Date: Mar 10, 2026 if ordered today

PerTronix Flame-Thrower Magnetic Trigger Billet Distributors D300710

Distributor, Flame-Thrower, Magnetic Trigger, Vacuum/Mechanical Advance, Black Cap, Chevy, V8, Each

Part Number: PNX-D300710

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

PerTronix Flame-Thrower Magnetic Trigger Billet Distributors D300711

Distributor, Flame-Thrower, Magnetic Trigger, Vacuum/Mechanical Advance, Red Cap, Chevy, V8, Each

Part Number: PNX-D300711

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

PerTronix Flame-Thrower Magnetic Trigger Billet Distributors D300811

PerTronix Flame-Thrower Magnetic Trigger Billet Distributors D300811

Distributor, Flame Thrower Billet, Magnetic Trigger, Mechanical Advance, Red Cap, Chevy, V8, Each

Part Number: PNX-D300811

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

Skyjacker Steering Arms CA150

Steering Arm, Steel, Chevy, SUV/Pickup, Power Steering, 4WD, 7-8 in. Lift, Each

Part Number: SJA-CA150

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

Dakota Digital LED Replacement Taillight Systems LAT-NR340

LED Taillight Conversion, Chevy, Kit

Part Number: DAK-LAT-NR340

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Rust Buster Frame Repair Sections RB7352L

Frame Rails, EZ Slip Design, Frame Repair, Rear Section, Left Side. Steel, 0.181 in. Thick, Natural Finish, Weld-On, Chevy, Each

Part Number: RBF-RB7352L

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

Rust Buster Frame Repair Sections RB7352R

Frame Rails, EZ Slip Design, Frame Repair, Rear Section, Right Side. Steel, 0.181 in. Thick, Natural Finish, Weld-On, Chevy, Each

Part Number: RBF-RB7352R

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

Dee Zee Specialty Series Truck Bed Toolboxes DZ 94

Toolbox

Part Number: DZZ-DZ94

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

Tuff Stuff Performance Power Steering Pumps 6186B

Power Steering Pump, Saginaw, GM, Black, Integral Reservoir, Black, Press-Fit, Hose Barb, Female Threads, Each

Part Number: TFF-6186B

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

COMP Cams Nitrous HP Camshafts 12-564-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 274/292, Lift .487/.501, Chevy, Small Block, Each

Part Number: CCA-12-564-4

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Classic SBC Camshaft SUM-1107

4.5 out of 5 stars ( 22 )

Estimated Ship Date: Monday 2/23/2026

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Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1066-1

Ring and Pinion Installation Kit, Complete, GM 9.5 in., Rear, Kit

Part Number: RMG-XL-1066-1

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

Tuff Stuff Performance Mini Alternators 7937AST

Alternator, Performance, Mini, High Amp, GM CS121 Case Style, 12 V, 110 Amps, Chrome, V-Belt Pulley, Each

Part Number: TFF-7937AST

2.0 out of 5 stars ( 1 )

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Dorman Ring and Pinion Sets 697-303 GM 8.5/8.625 in. 4.10 Gears

Differential Ring And Pinion Set

Part Number: RNB-697-303

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

Moroso Ultra 40 Race Ignition Wire Sets 73600

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 90 Degree Boots, GM/Studebaker, V8, Set

Part Number: MOR-73600

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

Bed Wood and Parts Traditional Punched Truck Bed Strips 148400015

Bed Strip Set for 1973-1987 Chevrolet/GMC Longbed Stepside - Includes Mild Steel Traditional Punched Bed Strips

Part Number: BDW-148400015

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Proform Electric Water Pumps 141-650

Water Pump, Electric, 35 gpm, Aluminum, Natural, Chevy, Small Block, Each

Part Number: PRO-141-650

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

Powermaster Smooth Look Alternators 67295

Alternator, 150 Amp, Polished, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: PWM-67295

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

Energy Suspension Hyperflex Bushing Kits 3.18102R

Bushings, complete vehicle kit, red

Part Number: ENS-3-18102-R

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Sherman Tailgates SHE898-71-1

TAILGATE PLAIN CHEVY/GMC STEPSIDE P/U 54-87 Partslink # GM1900101 OE # 14026349

Part Number: SHI-898-71-1

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cloyes Hex-A-Just Z-Racing Timing Sets 9-3100BZ

Timing Chain and Gear Set, Z-Racing Hex-A-Just, Double Roller, Billet Steel Sprockets, Chevy, Small Block, BBC Crank Snout, Set

Part Number: CLO-9-3100BZ

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

Brothers Trucks Floor Mats FMT81SM

Floor Mat, Factory Style, Front Seat, Low Hump, Rubber, Black, Chevy, GMC, Each

Part Number: HCT-FMT81SM

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

1981 CHEVROLET K20 Parts and Accessories