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COMP Cams Valve Seal 3/8in PTFE W/.500in

COMP Cams · New

COMP Cams Valve Seal 3/8in PTFE W/.500in

MPN 512-1 · Store SKU cca512-1

$8.95
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Supplier stock checked 11/8/2026, 10:02:34 AM UTC. Adding a part does not reserve it.

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Product details

Fits: 3/8" Valve Stems - .500" Guides (.600" Seal Diameter)Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guidesSmaller diameter than COMP Umbrella Seals to allow use with double springs COMP's Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than o-ring or umbrella seals. This 512 seal has a .600" outer diameter and fits applications with 3/8" valves and .500" OD valve guides. 1 PTFE Valve Seal for .500" Guide Size, 3/8" Valve Stem

Manufacturer fitment & guides

  • Engines w/ 0.500" OD Valve Guides and 3/8" Valve Stems
  • Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.

Part-specific notes

  • California Proposition 65: Y

Manufacturer documents

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