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Supertech valve stem seals are specified as 6mm Viton integral seals for GM Ecotec engines and are sold as a set of eight. These seals are intended to control oil at the valve stem in high-temperature environments and the Viton material offers resistance appropriate for modern engine conditions. Supplied as a matched set, they suit rebuilds or valve-train refreshes on compatible Ecotec engines.
Supertech GM Ecotec 6mm Viton Integral Valve Stem Seal - Set of 8
