Supertech valve locks for 1997-and-newer Mazda Miata 1.6L/1.8L are 6mm retainers supplied as a set of 16, intended for use when rebuilding or servicing cylinder head valve assemblies. These components secure valve keepers and are sized for the specified engines, providing original-style retention where compatible and required as part of valve train reassembly.
Supertech 1997+ Mazda Miata 1.6L/1.8L 6mm Valve Lock (Req 2 Per Valve) - Set of 16