Ferrea titanium valve retainers for Toyota Supra 3.0L B58 Turbo applications are offered as a set of 12 with a 5.0mm valve stem size. These retainers secure valve springs at the valve stems and are intended for valve-train maintenance or engine assembly on the listed Supra application. The product description identifies titanium construction and the stated stem dimension for fit reference.
Ferrea Toyota Supra 3.0L B58 Turbo 5.0mm Valve Stem Titanium Retainers - Set of 12