2003 CHEVROLET SILVERADO 2500 HD Engine Gaskets & Seals Gaskets & Seals - In Stock Filter Options - Vendor In Stock Filter Options

Cometic MLS Head Gaskets C5318-030

Cometic MLS Head Gaskets C5318-030

Head Gasket, MLS, 4.160 in. Bore, .030 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5318-030

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

ACDelco GM Genuine Parts Water Pump Gaskets 94011702

Water Pump Gaskets, EPDM Rubber, Chevrolet, GMC, Each

Part Number: ADO-251-2031

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

Cometic MLS Head Gaskets C5883-051

Head Gasket, MLS, 4.100 in. Bore, .051 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5883-051

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

ACDelco Water Neck and Thermostat Housing Seals 97223686

Water Neck Gaskets and O-Rings, Water Neck and Thermostat Housing Seals, Chevrolet, GMC, Each

Part Number: ADO-97223686

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

SCE Throttle Body Gaskets 214

Throttle Body Gasket, Thick-option Replacement, Paper, Chevy, 4.8L, 5.3L, 6.0L, Each

Part Number: SCE-214

5.0 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

Cometic MLS Head Gaskets C5318-098

Head Gasket, MLS, 4.160 in. Bore, .098 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5318-098

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

Cometic MLS Head Gaskets C5317-036

Head Gasket, MLS, 4.130 in. Bore, .036 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5317-036

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Cometic MLS Head Gaskets C5318-066

Head Gasket, MLS, 4.160 in. Bore, .066 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5318-066

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

Cometic MLX Head Gaskets C5505-066

Head Gasket, MLX, 4.040 in. Bore, .066 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5505-066

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

ACDelco Throttle Body Gaskets 12570168

Throttle Body Gasket, Composite, Chevy, GMC, 7.4L, 8.1L, Each

Part Number: ADO-12570168

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

Cometic MLS Head Gaskets C5882-051

Head Gasket, MLS, 4.100 in. Bore, .051 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5882-051

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Cometic MLS Head Gaskets C5318-027

Head Gasket, MLS, 4.160 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5318-027

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Cometic Head Gaskets C15509-040

.040" MLS HEAD GASKET

Part Number: CGT-C15509-040

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Fel-Pro Water Neck Gaskets 35632

Gasket, Water Neck, Rubber, O-Ring, Each

Part Number: FEL-35632

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 GM Genuine Parts Turbocharger to Manifold Gaskets 97188685

Gasket, Exhaust Manifold Flange to Turbocharger, Chevrolet, GMC, Duramax, 6.6L, Each

Part Number: ADO-97188685

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

Fel-Pro Crankshaft Front Seals TCS 45055

Timing Cover Seal, Front Crankshaft Seal, Gasket, O-Rings, Chevrolet, GMC, 6.6L, Duramax, Kit

Part Number: FEL-TCS45055

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

Cometic MLS Head Gaskets C5489-140

Head Gasket, MLS, 4.100 in. Bore, .140 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-140

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Cometic MLS Head Gaskets C5751-056

Head Gasket, MLS, 4.060 in. Bore, .056 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5751-056

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

Mahle Original Head Gasket Sets HS54580

Engine Gasket Set, Original Head Gasket Set, Chevy, GMC, 6.6L Duramax Diesel, Kit

Part Number: MAH-HS54580

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Fel-Pro EGR Gaskets 70947

EGR Gasket, Steel Core Laminate, Avanti, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: FEL-70947

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

Cometic MLS Head Gaskets C5765-040

Head Gasket, MLS, Marine, 4.350 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5765-040

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Cometic MLS Head Gaskets C5762-040

Head Gasket, MLS, Marine, 4.350 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5762-040

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

ACDelco Crankshaft Front Seals 19340207

Timing Cover Seals, ACDelco Crankshaft Front Seals, Multi-Purpose Seal, Multiple Applications, Each

Part Number: ADO-4333N

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

Cometic MLS Head Gaskets C5751-092

Head Gasket, MLS, 4.060 in. Bore, .092 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5751-092

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Cometic MLS Head Gaskets C5489-056

Head Gasket, MLS, 4.100 in. Bore, .056 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-056

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today