N18B16A N13B16A 1.6T Auto Piston & Ring Set Ø77mm 11257601181 WG1261177 8744480000 For Countryman Paceman Material: Cast aluminum Cylinder Bore: Ø77mm Compression Height: 28.5mm Land Height: 5.5mm Length: 51.2mm Bolt Length: 48mm Bolt Diameter: 20mm Recess Diameter: 34.7mm Fitment: Compatible with models equipped with N18B16A and N13B16A 1.6T engines This piston and ring set is designed for precise integration into the engine system, supporting efficient combustion and.The cast aluminum construction aids in heat dissipation, contributing to stable performance under operating conditions.With a cylinder bore of Ø77mm and compression height of 28.5mm, the dimensions are engineered to align with the specifications of the designated engine types.The set includes pistons and rings configured for direct replacement, with compatibility corresponding to part numbers WG1261177, WG1790960, 081 PI 00110 000, 081 RS 00104 0N0, and 87-444800-00.Installation is designed to be straightforward, suitable for use in engine rebuilds or performance.Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.