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COMP Cams 3/8" umbrella valve seal fits 3/8" valve stems and OE‑size guides (.900" OD) to control oil migration past the valve guide. Normally employed where larger‑than‑stock diameter springs are used, the umbrella seal typically requires no machine work and provides a practical replacement option for stock guide setups requiring simple, reliable sealing.
COMP Cams Valve Seals 3/8in UmBRella
