B46 B48 2.0 Auto Pistons & Rings Set 11259468870 11258638448 11258618502 CR 11:1 For 320i S F30 F56 G20 G30 2.0T This piston and ring set is designed for 2.0T engines with a compression ratio of 11:1, fitting models including 120i, 220i, 320i, 420i, 520i, X1, X2, X3, X4, and S series vehicles.It is compatible with chassis platforms F30, F56, G20, and G30.The set includes four forged aluminum pistons and steel rings, engineered to support performance applications while maintaining under -stress conditions.The piston design allows for precise fitment in B46 and B48 engine blocks, contributing to improved engine efficiency and power output.Steel rings provide sealing and thermal conductivity for consistent.This set is intended for use in engine rebuilds or performance where enhanced internal components are required. This replacement part is manufactured independently.All brand references are used solely to denote compatibility with listed models.