4pcs 77mm Engine Piston Set and Overhaul Gaskets Kit for 114i 116i 118i 120i 316i 1.6 N18B16 2009-2016 This kit includes four 77mm engine pistons and a complete set of overhaul gaskets designed for use with the 1.6L N18B16 engine model used in select vehicles from 2009 to 2016.The pistons are machined to proper fit and function during engine rebuilds.The included gasket set covers all necessary seals for a full engine overhaul, providing a comprehensive solution for cylinder head, oil pan, valve cover, and other critical areas.This set supports standard bore applications and is intended for replacement during major engine servicing.