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GSC Power Division Viton valve stem seals are supplied in a bulk set for Honda D16, B18 and H23 applications and measure 6.6 mm. These seals use Viton material noted for heat and chemical resistance and are offered in large quantity for workshop rebuilds or high-volume servicing. The set format supports repeated valve-service needs while matching the listed engine families and seal diameter.
GSC P-D Honda D16/B18/H23 Viton 6.6mm Valve Stem Seal - Set of 500
