6pcs N52B2 Engine Pistons and Rings Set with Φ82.00mm cylinder bore and 11:1 compression ratio designed for use in vehicles requiring N52B2 specifications.This set includes six pistons and corresponding rings engineered to meet precise dimensional standards for compatibility with engine models associated with E60, E90, E92, 323i, 525i, X1, X3, and X4 platforms.The pistons feature a diameter of Φ82.00mm, wrist pin diameter of Φ20mm, and wrist pin length of 46mm.Ring thicknesses are 1.2mm for the first ring, 1.5mm for the second ring, and 2.0mm for the third ring, supporting effective sealing and combustion efficiency.Constructed for naturally aspirated engines, this piston and ring set is suited for performance and durability under regular operating conditions.The components are machined to standard tolerances to help maintain proper cylinder integrity and engine function. This component is not from the brand.References to models are used only to indicate fitment.