2003 Engine Gaskets & Seals

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 4/13/2026 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 4/13/2026 if shipped by air

Timing Cover Seal, Each

Part Number: TMK-100470

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Intake Manifold Gaskets, Replacement, Lower Set Only, Stock Port Style, Cadillac, Chevrolet, GMC, Small Block, Set

Part Number: FEL-MS901312

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/13/2026 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 4/13/2026 if shipped by air

Gaskets, Intake Manifold, O-ring Seals, Viton®, Stock Ports, 8-piece, Chevy, LS, 5.7L, 6.0L, Set

Part Number: HLY-508-23

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Gaskets, Head Set, Chevy, 5.7L, Set

Part Number: FEL-HS7733PT16

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Valve Cover Gaskets, PermaDryPlus, Rubber, Chrysler, Dodge, Jeep, Ram, Pair

Part Number: FEL-VS50625R

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Intake Manifold Gaskets, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Pair

Part Number: ADO-89060413

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Head Gasket, Multi-Layer Steel, Replacement, Grade C, GM, 6.6L Duramax, Passenger Side, Each

Part Number: NAL-12637788

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Intake Manifold Gaskets, AirForce Manifold LS Seal Port Kits, LS1 Port, Rubber, Chevy, 5.7L, 6.0L, Set of 8

Part Number: MSD-2710

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Head Gasket, Multi-Layer Stainless Steel, 3-Layers, 4.040 in. Bore, 0.027 in. Compressed Thickness, Dodge, 5.2/5.9L Magnum, Each

Part Number: CGT-C15535-027

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 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 4/13/2026 if shipped by air

Gaskets, Manifold, Intake, Chevy, Small Block w/CPI, Set

Part Number: FEL-MS98000T

4.58 out of 5 stars ( 33 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Head Gaskets, 4.060 in. Bore, .051 in. Compressed Thickness, Chevy, Small Block, Each

Part Number: CGT-C5751-051

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Intake Manifold Gaskets, Stock Port Style, Chevy, Small Block LS, Set of 8

Part Number: ADO-19256623

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Water Pump Gaskets, Aluminum, Chevy GM, LS/LSX, Gen III/IV, Pair

Part Number: SUM-G2624

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Gaskets, Plenum O-Ring Cord, 4.5 ft. Long, 3/32 in. Diameter, Hi-Ram, Chevy, LS, Each

Part Number: HLY-508-21

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 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 4/13/2026 if shipped by air

Rear Main Seal, 1-Piece, PTFE, Each

Part Number: TMK-100085

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Head Gasket, 3.910 in. Bore, .051 in. Compressed Thickness, Chevy, LS, 5.7, Each

Part Number: CGT-C5475-051

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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 4/13/2026 if shipped by air

Head Gasket Set

Part Number: FEL-HS26191PT1

4.31 out of 5 stars ( 16 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

• Free Shipping

Engine Valley Cover Gasket, Rubber/Steel, Chevy GM, GEN III, LS-1, 4.8, 5.3, 5.7, 6.0, Each

Part Number: SUM-G2626

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Oil Pan Gaskets, One-piece, Silicone/Aluminum, Chevy, Small Block LS, Each

Part Number: IRP-HGA-1001

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air