For N54B30 3.0L L6 Turbo 135i 335i 535i 740i X6 Z4 E82 E90 E60 F01 6Pcs Pistons & Rings Set Φ84mm OE11257610295 11257577586 Set includes 6 pieces of pistons and rings designed for 3.0L L6 turbocharged engines with a cylinder bore size of Φ84mm.Constructed from forged aluminum, the pistons feature a wrist pin diameter of Φ22mm and wrist length of 53mm to support durability and stability under -performance conditions.The design allows for efficient combustion and in demanding environments. This set is engineered to fit specific engine models and serves as a direct replacement for components with part numbers OE11257610295 and 11257577586.It is compatible with select vehicle platforms including those designated under model codes 135i, 335i, 535i, 740i, X6, Z4, E82, E90, E60, and F01.Installation is straightforward, allowing integration without extensive modifications or specialized tools. ote: This is a third-party compatible part.Brand/model citations do not imply sponsorship or approval.