Automotive Gaskets & Seals

From intake to exhaust, gaskets are always at the center of the action, providing the positive, leak-free seal your vehicle’s vital systems require to run at peak efficiency....

From intake to exhaust, gaskets are always at the center of the action, providing the positive, leak-free seal your vehicle’s vital systems require to run at peak efficiency. We have the automotive gaskets and seals for your daily driver or dedicated race car in individual pieces that are perfect for general maintenance or full sets with every gasket and seal you need for a complete engine rebuild. Choose from factory-replacement materials like cork and rubber, or high-tech gaskets made from multi-layer steel, dead-soft aluminum, copper, and more—all designed to withstand extreme heat and pressure.

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NotcHead Firewall Rings 4702

NotcHead Firewall Rings 4702

Firewall Grommet, Rings, Aluminum, Black Anodized, Round, Each

Part Number: NTH-4702

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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NotcHead Firewall Rings 4802

Firewall Grommet, Rings, Aluminum, Black Anodized, Round, Kit

Part Number: NTH-4802

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Clayton Machine Billet Aluminum Oil Caps LSO-01-B

Engine Oil Cap, Billet Aluminum, Grooved, Black Anodized, Chevy, LS Engines, Each

Part Number: CYM-LSO-01-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

Clayton Machine Billet Aluminum Oil Caps LSO-02-B

Engine Oil Cap, Billet Aluminum, Dished, Black Anodized, Chevy, LS Engines, Each

Part Number: CYM-LSO-02-B

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

Clayton Machine Billet Aluminum Oil Caps LSO-03-B

Engine Oil Cap, Billet Aluminum, Modern, Black Anodized, Chevy, LS Engines, Each

Part Number: CYM-LSO-03-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

PRW Power Valve Cover Gaskets 4030207

VALVE COVER, ALUM FABRICATED, FORD 302/351W Style Cylinder Heads, Fabricated Billet Rail, 5 long fasteners, Satin Black Anodized

Part Number: PQX-4030207

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Cometic Header and Exhaust Manifold Gaskets C5258

NO LOGO OR ANODIZED .190"AR

Part Number: CGT-C5258

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

Cometic Header and Exhaust Manifold Gaskets C5259

NO LOGO OR ANODIZED .190"AR

Part Number: CGT-C5259

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

Seals-it Split Grommet Seals SGS35100

Firewall Split Grommet, 2 Piece Seal, Rubber, 3.00 in. O.D., 1.000 in. I.D., Each

Part Number: SIT-SGS3-5-100

4.04 out of 5 stars ( 24 )

Estimated Ship Date: Tomorrow

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Earl's Performance Seals-It Firewall Grommets 29G001ERL

Hose Grommet, Seals-It, Firewall Grommet Seal, 3 in. Outside Diameter, No Hole, Each

Part Number: EAR-29G001ERL

4.2 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Seals-it Split Grommet Seals SGS351250

Split Grommet Seal, Rubber, Black, 3.000 in. O.D., 1.250 in. I.D., Each

Part Number: SIT-SGS351250

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Seals-it Split Grommet Seals SGS35500

Firewall Split Grommet, 2 Piece Seal, Rubber, 3.00 in. O.D., 0.500 in. I.D., Each

Part Number: SIT-SGS3-5-500

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Seals-it Split Grommet Seals SGS35750

Firewall Split Grommet, 2 Piece Seal, Rubber, 3.00 in. O.D., 0.750 in. I.D., Each

Part Number: SIT-SGS3-5-750

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Milodon Spark Plug Tube Seals 27500

Seals, Spark Plug Tubes, Dodge, Plymouth, 426 Hemi, Set of 8

Part Number: MIL-27500

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Seals-it Split Grommet Seals SGS45100

Firewall Split Grommet, 2 Piece Seal, Rubber, 4.50 in. O.D., 1.000 in. I.D., Each

Part Number: SIT-SGS4-5-100

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Seals-it Split Grommet Seals SGS45BL

Firewall Split Grommet, 2 Piece Seal, Rubber, 4.50 in. O.D., Blank I.D., Each

Part Number: SIT-SGS4-5-BL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Seals-it Split Grommet Seals SGS35BL

Firewall Split Grommet, 2 Piece Seal, Rubber, 3.00 in. O.D., Blank I.D., Each

Part Number: SIT-SGS3-5-BL

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Earl's Performance Seals-It Firewall Grommets 29G008ERL

Hose Grommet, Seals-It, Firewall Grommet Seal, 3 in. Outside Diameter, -8 AN Hose, Each

Part Number: EAR-29G008ERL

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Seals-it Split Grommet Seals SGS351125

Split Grommet Seal, Rubber, Black, 3.000 in. O.D., 1.125 in. I.D., Each

Part Number: SIT-SGS351125

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Seals-it Grommet Seals GS1003WPT

Grommet Seal, Pointed, Rubber, Black Center, 3.00 in. O.D., Each

Part Number: SIT-GS1003WPT

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Seals-it Grommet Seals GS20032HBLACK

Dual Grommet Seal, Rubber, Black, 3.750 in. Wide, 0.250 in. I.D., Each

Part Number: SIT-GS20032HBLK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Seals-it Split Grommet Seals SGS451125

Firewall Grommet, Rubber, 4.500 in. Round, Split, 1.125 in Center Hole, Each

Part Number: SIT-SGS451125

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Seals-it Split Grommet Seals SGS45500

Firewall Split Grommet, 2 Piece Seal, Rubber, 4.50 in. O.D., 0.500 in. I.D., Each

Part Number: SIT-SGS4-5-500

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Seals-it Grommet Seals GS50012

Firewall Grommet, Rubber, 4.500 in. O.D., 2.110 in. I.D., Each

Part Number: SIT-GS5001-2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Seals-it Split Grommet Seals SGS35625

Firewall Split Grommet, 2 Piece Seal, Rubber, 3.00 in. O.D., 0.625 in. I.D., Each

Part Number: SIT-SGS3-5-625

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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