COMP Cams · New
COMP Cams Valve Seal 3/8in UmBRella
MPN 504-1 · Store SKU cca504-1
Supplier stock checked 11/7/2026, 6:42:55 PM UTC. Adding a part does not reserve it.
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Product details
Fits: 3/8" Valve Stems - OE-Size Valve Guides (.900" Outer Diameter)Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guidesNormally used when a larger-than-stock diameter spring is usedRequires no machining. Typically requiring no machine work, our 504 umbrella seal is a great option for stock guide applications with 3/8" valves needing a seal replacement. 1 Umbrella Valve Seal for Stock Guide Size, 3/8" Valve Stem
Manufacturer fitment & guides
- Engines w/ Stock/Unmodified 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