Piston Assembly Set for BMW Mini N12B14A 1.4L (11257566478)

The BMW N12B14 1.4L Standard (STD) Piston Kit (suitable for MINI R56/One models) features a standard bore of 77.00mm and is typically equipped with an 18mm piston pin. This four-cylinder kit typically includes piston rings with the following groove specifications: a 1.2mm top ring, a 1.5mm second ring, and a 2.0mm oil ring; its OEM part numbers are typically listed as 11257566478 or 11257604035.