Availability
1981 CHEVROLET K20 Parts and Accessories
Oil Pump, Shark Tooth, High-Volume, Pickup, Driveshaft, 7.50 in. Pan Depth, Chevrolet, Small Block Gen I, Each
Part Number: MEL-10050ST750SS
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.08:1 Ratio, GM, 12-Bolt Truck, 3 Series, Set
Part Number: RMG-4900681
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set
Part Number: SPZ-36213
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Motive Gear Ring and Pinion Sets GM10-342A GM 8.5/8.625 in. 3.42 Gears
Estimated Ship Date: Today
Yoke, Differential Location, 30-spline Inner, Steel, Rear, GM 10.5 in. (14-bolt), Each
Part Number: YGA-41180
Estimated Ship Date: Today
Estimated Ship Date: Today
Headliners, Vinyl, Charcoal Black, 2-door, Chevrolet, GMC, Kit
Part Number: TIP-S11514
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Clutch Kit, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 12 in. Diameter Disc, Chevy, GMC, Pickup, SUV, Kit
Part Number: HAY-90-103
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Seat Upholstery, Bench Type, Vinyl/Cloth, Black/Silver, Pleated Grain, Velour Cover Insert, Chevrolet, GMC, Each
Part Number: HCT-05-310
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5 in/8.6 in., Set
Part Number: MGR-GM10-342
Estimated Ship Date: Today
Estimated Ship Date: Today
Power Steering Pump, Saginaw, GM V6, Small Block, Black, Integral Reservoir, Black, Press-Fit, Hose Barb, Female Threads, Each
Part Number: TFF-6163B
Estimated Ship Date: Today
Estimated Ship Date: Today
Flywheel, Steel, 153-Tooth, 20 lb., Internal Engine Balance, Chevy, Each
Part Number: MCL-460320
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, L8, V8, Set of 8
Part Number: HSN-2M8542030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Starter, Mini, Inline, 1.8HP Motor, Inficlock 360 Degree Mounting, Chrome Plated, Chevy, Each
Part Number: PWM-19500
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Pan, Drag Race, Steel, 5 qt., Rear Sump, Chevy, Small Block, Each
Part Number: CTR-13-082
Estimated Ship Date: Today
Estimated Ship Date: Today
Wheel, 82 Series, Aluminum, Semi-gloss, Black, 18 in. x 9 in., 8 x 6.50 in. Bolt Circle, 4.53 Backspace, -12.00mm Offset, Each
Part Number: ROU-82181210
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Alternator, Internal Regulator, 200 Amp, Natural, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each
Part Number: PWM-47806
Estimated Ship Date: Today
Estimated Ship Date: Today
Starter, XS Torque, Inficlock Mounting 360 Degree Capable, Chrome Plated, Chevy, Small Block, Staggered Bolt Pattern, Each
Part Number: PWM-19526
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Flywheel, Aluminum, 13.5 lbs., Chevy, Each
Part Number: FIZ-198681
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Headliner, Vinyl, Black, Chevy, GMC, Each
Part Number: HCT-05-330
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Master Cylinder and Brake Booster Assembly, 1.000 in. Bore, Dual Bowl, Black Iron Cylinder, Steel Booster, Chevrolet, Kit
Part Number: RSD-B87315672
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, RADIATOR
Part Number: RDR-8010730
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
PLEAT, 1981-87 C/K FULL PLT VINYL/CLTH GRY/CHAR
Part Number: HCT-05-299
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Pan, Drag Race, Steel, 5 qt., Rear Sump, Chevy, Small Block, Each
Part Number: CTR-13-080M
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Cover, 14-bolt, Nodular Iron, Black Powdercoated, GM 10.5 in. (14-bolt), Chevrolet, GMC, Each
Part Number: YGA-29105
Estimated Ship Date: Today
Estimated Ship Date: Today
Radiator, Aluminum, Natural, 3-Row, LS Swap, Buick, Chevy, Oldsmobile, Pontiac, Each
Part Number: FLD-RGM-3R3319LS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Clutch Kit, Stock Replacement, 1.125 in. - 10-spline Input, Heavy-duty Disc, 12.00 in. Diameter, Pressure Plate, Checker, Chevy, GMC, Pontiac, Kit
Part Number: SXR-K1909-02HD
Estimated Ship Date: Today
Estimated Ship Date: Today
Truck / SUV
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Restoration
Stock Replacement
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Circle Track
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