Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / COMP Cams / New

COMP Cams Valve Seals 5/16in PTFE

COMP Cams · New

COMP Cams Valve Seals 5/16in PTFE

MPN 500-16 · Store SKU cca500-16

$38.95
CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/7/2026, 9:46:22 PM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

Fits: 5/16" Valve Stems - .530" Guides (.630" Outer 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 500 seals have a .630" outer diameter and fit applications with 5/16" valves and .530" OD valve guides. Set of 16 PTFE Valve Seals for .530" Guide Size, 5/16" Valve Stem

Manufacturer fitment & guides

  • Engines with 0.530" 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

Manufacturer documents

More from COMP Cams ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your cart.