GMC SIERRA 3500 HD Gaskets & Seals

Head Gasket, MLX, 4.150 in. Bore, .052 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5014-052

5.0 out of 5 stars ( 1 )

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

Exhaust Gaskets, Header and Manifold Gaskets, Round Port, Graphite, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, LS, Pair

Part Number: RFL-2049

4.68 out of 5 stars ( 19 )

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

Head Gasket, MLS, Multi-layer Stainless Steel, 4.000 in. Bore, 0.045 in. Compressed Thickness, Chevrolet, LS, Each

Part Number: CGT-C5477-045

Not Yet Reviewed

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

Head Gasket, MLS, 4.060 in. Bore, .060 in. Compressed Thickness, Chevy, 5.7, 6.0, 6.2L, Each

Part Number: CGT-C5751-060

3.5 out of 5 stars ( 4 )

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

Valley Pan Gasket, Steel, Chevy, 4.8L, 5.3L, 6.0L, Each

Part Number: FEL-MS96169

5.0 out of 5 stars ( 3 )

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

Gasket, Valve Cover, Rubber, Chevy, 5.7L, Each

Part Number: NAL-12637683

5.0 out of 5 stars ( 2 )

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

Head Gasket, MLS, Multi-Layer Steel, 4.030 in. Bore, 0.051 in. Compressed Thickness, Cadillac, Chevrolet, Pontiac, Small Block LS, Each

Part Number: CGT-C15494-051

Not Yet Reviewed

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

Exhaust Manifold and Header Gaskets, Multi-Layer Steel, Round Port, Chevrolet, GM, LS, Includes EGR and Air Injection Gaskets, Set

Part Number: SUM-110445

5.0 out of 5 stars ( 1 )

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

Head Gasket, Vulcan Cut-Ring, 4.056 in. Bore, Chevy LS, Each

Part Number: SCE-CR200559

2.0 out of 5 stars ( 4 )

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

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Timing Cover Gaskets, Victo-Tech Rubber, Chevy, GMC, Small Block LS, Kit

Part Number: MAH-JV5158

5.0 out of 5 stars ( 2 )

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

Intake Manifold Gasket, Replacement Seal for One-port Opening, Rubber, Cadillac, Chevy, GMC, Each

Part Number: ADO-12626354

5.0 out of 5 stars ( 2 )

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

Exhaust Gaskets, Steel Core Laminate, Round Port, Chevy, LS, Kit

Part Number: FEL-MS92467

4.57 out of 5 stars ( 21 )

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

Water Pump Gasket, GM Genuine Part, Rubber/Steel Core, Requires 2 Gaskets Per Engine, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: ADO-251-663

4.79 out of 5 stars ( 19 )

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

Head Gasket, MLS, 4.100 in. Bore, .045 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-045

3.0 out of 5 stars ( 1 )

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

Timing Cover Gasket, Replacement, Rubber/Steel Core, Chevrolet, Small Block LS, Each

Part Number: NAL-12735382

Not Yet Reviewed

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

Head Gasket, MLS, 4.160 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5318-040

4.33 out of 5 stars ( 3 )

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

Head Gasket, MLX, 4.040 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5505-040

4.33 out of 5 stars ( 3 )

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

Head Gasket, MLS, 4.100 in. Bore, .060 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-060

Not Yet Reviewed

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

Head Gasket, MLS, 4.060 in. Bore, .075 in. Compressed Thickness, Chevy, 5.7, 6.0, 6.2L, Each

Part Number: CGT-C5751-075

5.0 out of 5 stars ( 1 )

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

Timing Cover Seal, Each

Part Number: TMK-100470

5.0 out of 5 stars ( 5 )

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

Head Gasket, MLS, 4.100 in. Bore, .080 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-080

5.0 out of 5 stars ( 2 )

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

• Free Shipping

Head Gasket, MLS, Multi-layer Stainless Steel, 4.000 in. Bore, 0.030 in. Compressed Thickness, Chevrolet, LS, Each

Part Number: CGT-C5477-030

5.0 out of 5 stars ( 1 )

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

Head Gasket, MLS, 4.100 in. Bore, .066 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-066

5.0 out of 5 stars ( 1 )

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

Head Gasket, Multi-Layer Steel, MLS, 4.070 in. Bore, .051 in. Compressed Thickness, GM 6.2L LS3, L92, Each

Part Number: CGT-C15514-051

Not Yet Reviewed

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

Header and Exhaust Manifold Gaskets, Stock Port, Cadillac, Chevrolet, GMC, Chevy Small Block Gen V, Pair

Part Number: MAH-MS19936

Not Yet Reviewed

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