COMP Cams · New
COMP Cams Valve Seals 5/16in PTFE W/.500
MPN 513-16 · Store SKU cca513-16
Supplier stock checked 11/7/2026, 6:14:55 PM UTC. Adding a part does not reserve it.
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Product details
Fits: 5/16" 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. These 513 seals have a .600" outer diameter and fit applications with 5/16" valves and .600" OD valve guides. Set of 16 PTFE Valve Seals for .500" Guide Size, 5/16" Valve Stem
Manufacturer fitment & guides
- Engines w/ 0.500" OD Valve Guides and 5/16" Valve Stems
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y