GMC TRUCK Gaskets & Seals

Cometic MLS Head Gaskets C5401-040

Cometic MLS Head Gaskets C5401-040

Head Gasket, 4.135 in. Bore, .040 in. Compressed Thickness, Chevy, Small Block, Each

Part Number: CGT-C5401-040

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5269-023

Head Gasket, MLS, 4.060 in. Bore, .023 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5269-023

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

SCE AccuSeal Pro Valve Cover Gaskets 211076

Valve Cover Gaskets, AccuSeal Pro, Laminated High-Temperature Silicone/Cork, Chevy, Small Block, Pair

Part Number: SCE-211076

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

SCE Pro Copper Head Gaskets P112062

Head Gasket, Copper, 4.200 in. Bore, 0.062 in. Thickness, Chevy, Small Block, Each

Part Number: SCE-P112062

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Mahle Original Timing Cover Gaskets T27781

Timing Cover Gaskets, Paper, Avanti, Bizzarrini, Buick, Cadillac, Checker, Chevrolet, Excalibur, GMC, Gordon-Keeble, ISO, Oldsmobile, Pontiac, Kit

Part Number: MAH-T27781

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5249-066

Head Gasket, MLS, 4.200 in. Bore, .066 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5249-066

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5403-051

Head Gasket, MLS, 4.200 in. Bore, .051 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5403-051

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Fel-Pro Valve Stem Seals SS 5112

Valve Stem Seals, Rubber, O-Ring, 5/16 in. Valve Stem, Set of 16

Part Number: FEL-SS5112

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5402-040

Head Gaskets, 4.160 in. Bore, .040 in. Compressed Thickness, Chevy, Small Block, Each

Part Number: CGT-C5402-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C15495-040

.040" MLS 18 OR 23 DEG H/G

Part Number: CGT-C15495-040

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5403-027

Head Gasket, Multi-Layer Steel, 4.200 in. Bore, 0.027 in. Compressed Thickness, Chevy, 302, 327, 350, 400

Part Number: CGT-C5403-027

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

SCE Graph-Form Premium Header Gaskets 411180

Exhaust Gaskets, Header, Hi-Density/Hi-Temp Graphite, Square Port, Chevy Small Block , Set

Part Number: SCE-411180

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Remflex Exhaust Header Gasket Sets 2040

Exhaust Header and Manifold Gaskets, Round Port, Graphite, Header Adapter Flange Gasket, Fits 7-bolt Stahl Pattern, Chevy Small Block, Pair

Part Number: RFL-2040

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

SCE AccuSeal Pro Rear Main Seals 21104

Rear Main Seal, 2-Piece, Viton®, Chevy, Rocket Block, Each

Part Number: SCE-21104

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5272-040

Head Gasket, MLS, 4.165 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5272-040

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5469

Head Gasket, MLS, Multi-layer Steel, 4.004 in. Bore, for Use with Brodix BD2000 Heads, Buick, Chevy, GMC, Oldsmobile, Pontiac, Chevy Small Block, Each

Part Number: CGT-C5469

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

SCE MLS Spartan Head Gaskets M110339

Head Gasket, MLS Sparten, Multi-Layer Stainless Steel, 4.035 in. Bore, 0.039 in. Compressed Thickness, Chevrolet, Small Block, Each

Part Number: SCE-M110339

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5474-040

Head Gasket, MLS, 4.080 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5474-040

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic Distributor Gaskets C5531-060

Gasket, Distributor, Aramid Fiber, Chevy, Small, Big Block, Each

Part Number: CGT-C5531-060

4.93 out of 5 stars ( 14 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Mahle Original Intake Manifold Gaskets MS15315

Intake Manifold Gaskets, Original, Rectangular Port, Composite, Chevy, Small Block, Kit

Part Number: MAH-MS15315

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

SCE Pro Copper Head Gaskets P111562

Head Gasket, Copper, 4.155 in. Bore, 0.062 in. Thickness, Chevy, Small Block, Each

Part Number: SCE-P111562

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Fel-Pro Head Gasket Sets HS 7733 SH-2

Gaskets, Head Set, Chevy, Small Block Gen I, Set

Part Number: FEL-HS7733SH2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic CFM-20 Intake Gaskets C5414-059

Gasket, Manifold, Intake, Aramid Fiber, 0.059 in. Thick, Brodix Track 1, Chevy, Small Block, Each

Part Number: CGT-C5414-059

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Proform Valve Cover Gaskets 66001

Valve Cover Gaskets, Cork/Rubber with Steel Core, Chevy, Small Block, Pair

Part Number: PRO-66001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cometic MLS Head Gaskets C5247-070

Head Gasket, MLS, 4.125 in. Bore, .070 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5247-070

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air