Engine Pistons Rings Set Φ82.00Mm for F55 F56 G30 120I 220I 11258657760 11258678931 11258618503 11258638450 Parts This piston rings set is designed for use with specific engine models corresponding to the part numbers listed.The set includes rings with a diameter of 82.00 mm, suitable for applications in compatible engines.Each component is manufactured to match specifications for proper fit and function.The set supports engine performance by maintaining compression and reducing oil consumption.It is intended for replacement or repair purposes in applicable vehicles. Compatibility Statement: This is not an manufacturer part.Brand/model references are used for fitment guidance.