Ferrea titanium valve retainers for Toyota Supra 3.0L B58 Turbo applications are supplied as a set of 12 and listed with a 6.0mm valve stem size. These retainers secure valve springs at the stems and are intended for valve-train service or engine builds on the specified Supra application. The description specifies titanium construction and the 6.0mm stem dimension for compatibility reference.
Ferrea Toyota Supra 3.0L B58 Turbo 6.0mm Valve Stem Titanium Retainers - Set of 12