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Supertech 7mm Viton valve stem seal for Honda engines, sold individually. The Viton material is specified in the source for high-temperature resistance compared with standard elastomers. These seals control oil at the valve stem to protect valve guide lubrication and help maintain correct valve sealing. They suit engine service or rebuild tasks where OEM-style stem sealing is required.
Supertech Honda 7mm Viton Intake & Exhaust Valve Stem Seal - Single
