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The Supertech titanium retainer for the SPR-H1000 series is specified for a 7.0mm valve stem and serves as a direct replacement retainer for that spring family. It secures the valve spring and keeper to maintain correct installed height and spring-seat geometry on engines using SPR‑H1000 springs with 7.0mm stems during rebuilds, refreshes, or when matched titanium retainers are called for.
Supertech Titanium Retainer for SPR-H1000 Series 7.0mm Valve Stem
