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The Supertech steel retainer for spring SPR‑M1007 is specified for a 6.5mm valve stem and serves as the OEM‑style replacement retainer that secures springs and keepers. It matches the SPR‑M1007 spring dimensions to maintain correct installed height and spring‑seat geometry on engines using that spring and stem size during valvetrain maintenance or component replacement.
Supertech Steel Retainer for Spring SPR-M1007 6.5mm Stem
