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COMP Cams 513-1 PTFE Valve Stem Seal for Guide Stem - 500 5/16

Part of: COMP Cams PTFE Valve Stem Seal for Guide Stem

Other options in this family: COMP Cams 505-1 COMP Cams 500-1

Manufacturer

Picture for manufacturer COMP Cams

Part Number

513-1
9 reviews
Sale Price

$9.95

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams 513-1 is a high-quality PTFE (polytetrafluoroethylene) valve stem seal designed for precision oil control in performance and racing engines. This seal is engineered to fit valve guides with a .500" outer diameter and valve stems measuring 5/16" (0.3125").

Key Specifications:

  • Valve guide size: .500" outer diameter
  • Valve stem diameter: 5/16" (0.3125")
  • Material: PTFE for superior heat resistance and durability
  • Positive sealing design minimizes oil consumption
  • Reduces oil migration down the valve stem into the combustion chamber

PTFE valve seals offer excellent heat resistance and low friction characteristics, making them ideal for high-performance applications where precise oil control is critical. These seals help maintain proper lubrication of the valve stem while preventing excessive oil from entering the intake or exhaust ports, which can lead to fouled spark plugs, increased emissions, and reduced engine performance.

This is a single valve stem seal. Be sure to verify guide and stem dimensions before installation to ensure proper fitment.

Products specifications

Valve Guide Outer Diameter

0.5

Seal Outer Diameter

0.6

Valve Stem Outer Diameter

5/16

Valve Seal Type

Positive Stop PTFE

AMAZON ASIN

B002EE2ANK

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

Yes

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exemption Reason

No impact on pollution output of vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Have not received item yet but company is very responsive with fast shipment. Excellent price too.

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Product was shipped super fast. And product was in a well packaged box and everything was there. I would do business with them again in the future. Highly recommended and lowest prices!!!

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