1981 CHEVROLET K20 Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options

Continental OE Technology Series V-belts 15450

Belt, Elite, V-Belt, 7/16 in. Width, 44.50 in. Length, Each

Part Number: CEL-15450

5.0 out of 5 stars ( 1 )

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

Melling Oil Pump Screen Assemblies 12557

Melling Oil Pump Screen Assemblies 12557

Oil Pickup, Bolt-In, Aftermarket Pan Style, 7.000 in. Pan Depth, Chevy, Small Block, Each

Part Number: MEL-12557

5.0 out of 5 stars ( 2 )

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

Clevite Camshaft Bearings SH-718S

CAMSHAFT BEARING SET

Part Number: CLE-SH718S

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

Mahle Original Standard Piston Ring Sets 50564CP

Piston Rings, Standard Piston Ring Sets, Cast Iron, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: MAH-50564CP

5.0 out of 5 stars ( 2 )

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

Hastings Piston Ring Sets 139060

Piston Rings, Phosphate Coated, 4.059 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-139060

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

Sealed Power A-Series Rod Bearings 8-2555A 10

Rod Bearings, A-Series, Bi Metal, 0.010 in. Crankshaft Undersize, Chevy, Small Block, Set of 8

Part Number: SLP-8-2555A10

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

Sealed Power Main Bearing Sets 4663M 1

Main Bearings, .001 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M1

5.0 out of 5 stars ( 1 )

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

Continental OE Technology Series V-belts 15565

Belt, Elite, V-Belt, 7/16 in. Width, 56.00 in. Length, Each

Part Number: CEL-15565

5.0 out of 5 stars ( 1 )

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

ACDelco V-Ribbed Accessory Belts 88934332

Accessory Belts, V-Ribbed, V-groove, 0.410 in. Width, 45.33 in. Length, Buick, Cadillac, Chevy, Dodge, Edsel, Ford, GMC, Mercury, Olds, Pontiac, Each

Part Number: ADO-15448

Not Yet Reviewed

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

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Derale Oil Filter Adapters 15705

Oil Filter Adapter, Spin-on Bypass, Aluminum, Polished, 13/16-16 in. Thread, 1/2 in. NPT Inlet/Outlet, Each

Part Number: DER-15705

3.67 out of 5 stars ( 3 )

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

Sealed Power Cam Bearings 1557M

Cam Bearings, Direct Replacement, Steel Backed Babbit, Buick, Checker, Chevy, GMC, Oldsmobile, Pontiac, L6, 250, 292, Set

Part Number: SLP-1557M

Not Yet Reviewed

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

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Perma-Cool Bolt-On Oil Filter Adapters 113

Adapter, Oil Filter Bypass, Bolt-On, Aluminum, Natural, 1/2 in. Inlet/Outlet, Kit

Part Number: PRM-113

5.0 out of 5 stars ( 2 )

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

Proform Harmonic Balancer Covers 141-726

Harmonic Balancer Cover, Aluminum, Chrome, 8 in. Diameter, Degree Markings, Chevy, Small Block, Each

Part Number: PRO-141-726

5.0 out of 5 stars ( 2 )

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

Dayco High Performance V-Belts 15525

Accessory Belts, V-Belts, V-groove, 0.440 in. Width, 52.50 in. Length, AMC, Buick, Chevy, Chrysler, Ford, GMC, International, Mercury, Each

Part Number: DAC-15525

Not Yet Reviewed

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

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King SI-Series Main Bearings MB 557SI 040

Main Bearings, 1/2 Groove, .040 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI040

Not Yet Reviewed

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

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King SI-Series Main Bearings MB 557SISTDX

Main Bearings, 1/2 Groove, .001 in. Thinner, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SISTDX

5.0 out of 5 stars ( 1 )

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

Sealed Power Cam Bearings 1235M 1

Cam Bearings, Direct Replacement, Steel Backed Babbit, 0.001 in. Oversize, Chevy, Small block, Set

Part Number: SLP-1235M1

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

Dorman Timing Covers 635-510

Timing Cover, One-piece, Steel, Black, Chevy, GMC, Small Block, Each

Part Number: RNB-635-510

5.0 out of 5 stars ( 3 )

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

Cloyes Replacement Timing Chains C499

Timing Chain, Replacement, Single Roller, Steel, Cadillac, Chevy, Each

Part Number: CLO-C499

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

Mr. Gasket Crankshaft Keys 983G

Crankshaft Key, Long, Chevy, Chrysler, Dodge, Plymouth, Each

Part Number: MRG-983G

1.0 out of 5 stars ( 2 )

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

Sealed Power A-Series Rod Bearings 8-2555A 1

Rod Bearings, 0.001 in. Crankshaft Undersize, Bi Metal, AM General, Avanti, Checker, Chevy, Pontiac, Hummer, V8, Set of 8

Part Number: SLP-8-2555A1

Not Yet Reviewed

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

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Mr. Gasket Alternator Brackets 9850

Alternator Bracket, F-Style, Chrome Plated, Each

Part Number: MRG-9850

5.0 out of 5 stars ( 1 )

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

Mahle Original Standard Piston Ring Sets 50564CP.040

Piston Rings, Original Standard Piston Ring Sets, Cast Iron, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: MAH-50564CP040

Not Yet Reviewed

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

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Pioneer Performance Freeze Plugs PE-104-B

Freeze Plug Kit, Brass, Chevy, 153, L4, 194, 230, 250, 292 L6, Kit

Part Number: PIO-PE-104-B

4.0 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

Mr. Gasket Timing Tape 1588

Timing Tape, 6 3/4 in. Diameter Balancer, Chevy, Small Block, Each

Part Number: MRG-1588

3.5 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