This is a 6-piece piston rings set designed for the B58B30 engine series.All components meet standard dimensional specifications for direct replacement applications. Quantity: 6 Pieces Standard Bore Size: Φ82.00mm Engine Code Compatibility: B58B30A (3.0L 2998cc Turbocharged) Package Includes: Piston Rings Set (6 Pieces) Overhaul Gasket Set (1 set) OEM / Reference Numbers: 11128654268, 11128621951, 11128638124, 11340034068, 11340035853, 11657643149 Replacement OE Number: 11128654269 Aftermarket References: ELRING 298.551, ELRING 377.290, ELRING 773.890, ELRING 773.900, ELRING 259.972, 61-10215-00, 61-10215-10, 15-12480-01, 71-12484-00 Compatible Vehicles: Fits M140i Base 3.0L 2017–2019 Fits M240i Base 3.0L 2017–2020 Fits M240i Convertible 3.0L 2020 Fits M240i Coupe 3.0L 2020 Fits M240i M 3.0L 2018 Fits M240i Sport 3.0L 2017–2019 Fits M240i xDrive Base 3.0L 2017–2020 Fits 340i Base 3.0L 2016–2018 Fits 340i GT xDrive Base 3.0L 2017–2019 Fits 340i 3.0L 2016 Fits 340i M 3.0L 2016–2018 Fits 340i Sport 3.0L 2016 Fits 340i xDrive Base 3.0L 2016–2018 Fits 440i Base 3.0L 2017–2019 Fits 440i Gran 3.0L 2017 Fits 440i Gran Coupe Base 3.0L 2017–2019 Fits 440i Gran Coupe M 3.0L 2018–2019 Fits 440i M 3.0L 2017–2019 Fits 440i xDrive Base 3.0L 2017–2019 Fits 440i xDrive Gran Coupe Base 3.0L 2017–2019 Fits 540i Base 3.0L 2017–2020 Fits 540i M 3.0L 2018–2020 Fits 540i xDrive Base 3.0L 2017–2020 Fits 640i xDrive Gran Turismo Base 3.0L 2018–2019 Fits 740i Base 3.0L 2016–2019 Fits 740i Excellence 3.0L 2016–2019 Fits 740i xDrive Base 3.0L 2017–2019 Fits X3 M40i 3.0L 2018–2019 Fits X4 M40i 3.0L 2019 Installation Information: Remove the cylinder head assembly, manifold assemblies, and related components to access the pistons.Carefully remove the existing piston rings from the pistons, noting the orientation of the compression and oil control rings.Clean the piston ring grooves thoroughly to remove carbon deposits or residue.Install the piston rings onto the respective pistons, observing correct orientation and gap location as specified by engine manufacturer procedures.Install the overhaul gasket set components onto the engine block surfaces according to factory torque specifications and tightening sequences.Reassemble the engine components, proper alignment of the pistons during installation into the cylinder bores. Disclaimer: This replacement is not affiliated with any manufacturer.Model references indicate fitment only.