11257589348 Piston Ring Engine Supplies Accessories Auto Supplies For N12B16 STD Piston ring designed for use with N12B16 STD engine models.This component serves as a replacement part in engine rebuilding and maintenance procedures.It fits into the piston groove to proper compression and oil control within the cylinder.The ring is constructed to meet standard dimensional specifications for compatibility with applicable engine types.Suitable for automotive repair and performance applications where precise piston ring function is required.