Engine Gaskets, Seals & More

Cometic MLS Head Gaskets C5246-045

Cometic MLS Head Gaskets C5246-045

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

Part Number: CGT-C5246-045

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5434-045

Head Gasket, MLS, 4.630 in. Bore, .045 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5434-045

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5331-066

Head Gasket, Multi-layer Steel, 4.630 in. Bore, .066 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-066

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5751-036

Head Gasket, MLS, 4.060 in. Bore, .036 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5751-036

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Allstar Performance High Performance PTFE Valve Seals ALL90240

Valve Stem Seals, PTFE, .531 in. Guide Diameter .620 in. Outside Diameter, 11/32 in. Valve Stem, Set of 16

Part Number: AAF-ALL90240

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Mahle Original Valve Stem Seals SS45779

Valve Stem Seal Bui;Chev-Pass&Trk;GMC;Olds;Pont;Stu-Pass&Trk:170,224,262,265,283,307,327,3

Part Number: MAH-SS45779

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5399-080

Head Gasket, MLS, 4.030 in. Bore, .080 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5399-080

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5332-040

Head Gaskets, 4.375 in. Bore, .040 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5332-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Fel-Pro Valve Stem Seals SS 71041

Valve Stem Seals, Umbrella Type, Rubber, Chrysler, Dodge, Jeep, Mitsubishi, Ram, Set of 16

Part Number: FEL-SS71041

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5269-032

Head Gasket, MLS, 4.060 in. Bore, .032 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5269-032

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5462-051

Head Gasket, 4.410 in. Bore, Multi-layer Steel, Chrysler, Dodge, Plymouth, Big Block, Each

Part Number: CGT-C5462-051

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Fel-Pro Valve Stem Seals SS 72513

Valve Stem Seals, Umbrella Type, Rubber, Chevy, Set

Part Number: FEL-SS72513

1.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5489-098

Head Gasket, MLS, 4.100 in. Bore, .098 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-098

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Mahle Original Valve Stem Seals SS45343

Valve Stem Seals, Umbrella, Rubber, Chrysler, Dodge, Plymouth, Set of 16

Part Number: MAH-SS45343

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Mahle Original Valve Stem Seals SS45580

Valve Stem Seals, Positive Stop, Fluoroelastomer, Ford, Set of 8

Part Number: MAH-SS45580

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5329-023

Head Gasket, MLS, 4.375 in. Bore, .023 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5329-023

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Mahle Original Valve Stem Seals SS45920

Valve Stem Seals, Positive Stop, Rubber, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Saab, Pontiac, Set of 8

Part Number: MAH-SS45920

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5329-051

Head Gasket, MLS, 4.375 in. Bore, .051 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5329-051

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5789-051

Head Gasket, MLS, 4.125 in. Bore, 0.051 in. Compressed Thickness, Buick, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: CGT-C5789-051

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5248-098

Head Gasket, MLS, 4.165 in. Bore, .098 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5248-098

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5464-045

Head Gasket, Multi-layer Steel, 4.500 in. Bore, .045 in. Compressed Thickness, Chrysler, Big Block, Each

Part Number: CGT-C5464-045

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5331-075

Head Gasket, Multi-layer Steel, 4.630 in. Bore, .075 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-075

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 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 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5249-032

Head Gasket, MLS, 4.200 in. Bore, .032 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5249-032

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cometic MLS Head Gaskets C5871-027

Head Gasket, MLS, 4.100 in. Bore, .027 in. Compressed Thickness, Ford, Each

Part Number: CGT-C5871-027

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air