Pistons & Rings Set Φ82mm CR11:1 OE11259468870 For B46 B48 2.0T F20 520i S F54 F56 F57 F60 This Pistons & Rings Set features a cylinder bore of Φ82.00mm and piston diameter of Φ82mm, designed for fitment in 2.0T engines.With a compression ratio of 11:1, the set supports enhanced engine and efficiency.Constructed from cast aluminum, the pistons offer reduced weight and improved strength, contributing to better fuel economy and responsiveness. The three-piece piston ring configuration includes first ring at 1.2mm, second at 1.5mm, and third at 2.0mm, providing effective sealing and heat dissipation.This design supports and extended engine . Compatible with engine models B46 and B48, and applicable to vehicle platforms including F20, 520i, S series, F54, F56, F57, F60, among others.The set includes four complete piston and ring assemblies for full engine rebuild.Engineered for dimensional match and consistent under standard operating conditions. This product is an aftermarket solution.Brand names are mentioned only to clarify compatibility with specific models.