Material: components Type: Engine Piston & Ring Set Category: Engine Parts Design & Style: Engineered for function Usage & Purpose: Replacement for engine rebuild, repair, and maintenance function & Property: Supports consistent compression and thermal stability Parts & Accessories: Includes piston, rings, and reference to OEM part numbers N13 and N18 This engine piston and ring set is designed to meet standard engineering specifications for use in vehicles with 1.6L and 1.6T L4 16V engines.It is compatible with select models including the 1 Series, 3 Series, C3 Picasso, C4 Coupe, C4 Picasso, DS3, DS4, and DS5 from model years 2007 to 2024.The set may also fit other specified applications such as 308, 3008, and 508 where engine compatibility matches.The assembly includes the piston and rings, providing a complete unit for servicing.Its design supports proper cylinder sealing and thermal stability, contributing to sustained compression and mechanical integrity.Installation follows standard engine overhaul procedures and requires adherence to manufacturer torque and clearance specifications.