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The Cometic nitrile valve stem seal 16-pack (3/8 x 0.623 x 0.470 x 0.790) includes a positive two-ring and band design to retain sealing on modern valve stems. Marketed for contemporary engine builds, these seals are available across many applications from automotive to powersports. Sold as a 16-pack, they provide dependable oil control at the valve guide interface to support consistent valve train performance.
Cometic 3/8in x 0.623in x 0.470in x 0.790in Nitrile Valve Stem Seal-Positive 2 Ring & Band-16 Pack
