COMP Cams Valve Seals

4.32 out of 5 stars 190 Customer Reviews

COMP Cams offers a complete line of valve seals, from the stock GM O-rings to the positive-stop PTFE seals. They are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The O-ring seals use the standard retainer and oil splash shield. The umbrella seals are normally used when a larger-than-stock diameter spring is used. In the case of a double spring, the positive stop PTFE seals are used. For triple-spring applications, use the smaller-diameter Viton® seals.

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COMP Cams Valve Seals 517-16

COMP Cams Valve Seals 517-16

Valve Stem Seals, Viton®, Positive Stop, .500 in. Guide, 0.342 in. Valve Stem, Set of 16

Part Number: CCA-517-16

4.45 out of 5 stars ( 22 )

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COMP Cams Valve Seals 514-16

Valve Seals, Positive Stop, Viton®, .375 in. Stem, .500 in. Guide, Set of 16

Part Number: CCA-514-16

4.0 out of 5 stars ( 2 )

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COMP Cams Valve Seals 504-16

Valve Stem Seals, Rubber, Umbrella, 3/8 in. Valve Stem, Set of 16

Part Number: CCA-504-16

5.0 out of 5 stars ( 7 )

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COMP Cams Valve Seals 522-16

Valve Seals, Positive Stop, .375 in. Stem, .530 in. Guide, Set of 16

Part Number: CCA-522-16

4.83 out of 5 stars ( 6 )

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COMP Cams Valve Seals 501-16

Valve Stem Seals, Rubber, O-Ring, 11/32 in. Valve Stem, Set of 16

Part Number: CCA-501-16

5.0 out of 5 stars ( 6 )

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COMP Cams Valve Seals 502-16

Valve Stem Seals, Rubber, Umbrella, 0.344 in. Valve Stem, Set of 16

Part Number: CCA-502-16

4.33 out of 5 stars ( 3 )

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COMP Cams Valve Seals 516-16

Valve Stem Seals, Viton®, Positive Stop, .530 in. Guide, 0.310 in. Valve Stem, Set of 16

Part Number: CCA-516-16

Not Yet Reviewed

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COMP Cams Valve Seals 518-8

Valve Stem Seals, Viton®, Positive Stop, .530 in. Guide, 11/32 in. Valve Stem, Set of 8

Part Number: CCA-518-8

5.0 out of 5 stars ( 1 )

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COMP Cams Valve Seals 521-16

Valve Seals, Positive Stop, Viton®, .372 Stem, .500 in. Guide, Triple Spring, Set of 16

Part Number: CCA-521-16

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COMP Cams Valve Seals 522-8

Valve Stem Seals, PTFE, Positive Stop, .530 in. Guide, 3/8 in. Valve Stem, Set of 8

Part Number: CCA-522-8

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COMP Cams Valve Seals 504-12

Valve Stem Seals, Rubber, Umbrella, 3/8 in. Valve Stem, Set of 12

Part Number: CCA-504-12

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COMP Cams Valve Seals 517-12

Valve Stem Seals, PTFE, Positive Stop, .500 in. Guide, 11/32 in. Valve Stem, Set of 12

Part Number: CCA-517-12

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Valve Seals 502-12

Valve Stem Seals, Rubber, Umbrella, 0.344 in. Valve Stem, Set of 12

Part Number: CCA-502-12

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Valve Seals 517-8

Valve Stem Seals, Viton®, Positive Stop, .500 in. Guide, 0.342 in. Valve Stem, Set of 8

Part Number: CCA-517-8

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

COMP Cams Valve Seals 503-8

Valve Stem Seals, PTFE, Positive Stop, .530 in. Guide, .344 in. Valve Stem, Set of 8

Part Number: CCA-503-8

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Valve Seals 516-12

Valve Stem Seals, Positive Stop, Viton®, 0.313 in. Stem Diameter, 0.530 in. Guide Diameter, Set of 12

Part Number: CCA-516-12

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Valve Seals 515-8

Valve Stem Seals, Positive Stop, Viton®, 0.375 in. Stem Diameter, 0.530 in. Guide Diameter, Set of 8

Part Number: CCA-515-8

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Valve Seals 521-8

Valve Seals, Positive Stop, Viton®, .375 Stem, .500 in. Guide, Triple Spring, Set of 8

Part Number: CCA-521-8

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Valve Seals 521-12

Valve Stem Seals, PTFE, Positive Stop, .500 in. Guide, 3/8 in. Valve Stem, Set of 12

Part Number: CCA-521-12

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Valve Seals 501-12

Valve Stem Seals, Rubber, O-Ring, 11/32 in. Valve Stem, Set of 12

Part Number: CCA-501-12

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

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