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The Supertech titanium retainer for spring SPR‑M1007S/TS1015 is specified for a 6mm valve stem and serves as the replacement retainer that secures spring and keeper interfaces. Matched to the M1007S/TS1015 spring family, it preserves installed height and spring‑seat geometry for engines requiring that 6mm stem configuration during valvetrain repairs or rebuilds.
Supertech Titanium Retainer for Spring SPR-M1007S TS1015 6mm Stem
