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The Supertech 5.0mm Viton valve stem seal set for GM Opel applications is supplied as a set of 16, reflecting the 5.0mm stem sizing in the listing. These seals use Viton as specified and are packaged to replace all valve stem seals when a full set of sixteen 5.0mm seals is required for the engine described.
Supertech GM Opel 5.0mm Stem Viton Valve Stem Seal - Set of 16
