This Supertech steel retainer set for Mini R53 is supplied as a set of 16 and fits OEM springs and single-groove valves. The set provides all retainers needed when servicing the R53 valvetrain, restoring correct spring seating and containment. It’s intended for routine spring replacement or rebuilds where a full complement of matching retainers is required.
Supertech Steel Retainer for Mini R53 for OEM Spring And Single Groove Valves - Set of 16