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COMP Cams 3/8" umbrella valve seal is one option in a complete line of valve stem seals intended to keep oil out of the combustion chamber through valve guide clearance. The umbrella style suits larger spring diameters and typically requires no machining, while COMP's broader offering includes O‑ring, positive‑stop PTFE, and smaller Viton seals for other guide and spring configurations.
COMP Cams Valve Seals 3/8in UmBRella
