4X Piston & Ring STD 77mm For Countryman Paceman 2006-2016 N12 N16 R55-R60 11257589348 Material: aluminum Product Type: 4X Piston & Ring STD Category: Pistons, Rings, Rods & Parts Design and Style: Engineered for durability and performance Usage and Purpose: Replacement for Countryman Paceman models Performance and Property: Enhanced engine efficiency and longevity Parts and Accessories: Includes 4X Piston & Ring Set as shown in the picture The 4X Piston & Ring STD set is designed to enhance engine efficiency and longevity.Made from aluminum, these pistons and rings are built to withstand the demands of daily and performance driving.The design provides a precise fit for compatible vehicles, supporting and smooth performance. This set is intended for use with Countryman Paceman models from 2006 to 2016.The 11257589348 corresponds to specifications, compatibility with designated engine components.The set includes four pistons and rings, each with a 77mm bore size, designed to fit engines with N12 and N16 codes.This allows restoration of engine performance or support for increased power output. Disclaimer: This is not an part.References to brands or models are used only to illustrate compatibility.