ABOK-11257566479 Piston Ring Parts Accessories Car Supplies For N12 N13 N16 N18 116 316 Piston ring set designed for use with specific engine models.Includes components compatible with N12, N13, N16, N18, 116, and 316 applications.Provides sealing between piston and cylinder wall to support engine function.Made from materials suitable for -temperature environments.Intended for use in automotive repair and maintenance where precise fitment is required.This is a non- replacement.Any reference to brand names or models is strictly for compatibility purposes.