Country/Region of Manufacture: United States, Vintage Part: No The locks are heat-treated for maximum strength and finished with the black oxide for an attractive appearance. Ferrea valve locks are machined to exact tolerances for a better fit and more consistent material properties Manufacturer Part Number: K10037, Material: Stainless Steel, Features: Sealed K10037 Ventilfedersicherungen Ferrea Valve Locks Keepers Fits Toyota 2JZ-GTE 2JZ-GE 2JZGTE Ferrea Ventilsicherungen Neu, Brand: Ferrea, Type: Valve locks