4pcs G4FJ 77.5mm Engine Piston Rings Set +0.5mm For 2011-2019 1.6T 23410-2BCA0 Car Accessories This piston ring set is designed to fit engines requiring a 77.5mm bore size with a +0.5mm oversize dimension.Compatible with specific 1.6T engine models from 2011 to 2019, this set includes four piston rings (G4FJ configuration) for complete cylinder restoration.The rings are engineered for proper sealing, compression, and oil control during engine.Suitable for use in automotive repair and rebuilding applications where precise piston ring specifications are required.23410-2BCA0 corresponds to the applicable engine system.This is a replacement component intended for installation on compatible vehicles. This component is produced by an independent manufacturer.Brand names are used for compatibility illustration.