This engine main bearings set is designed for use in R56, F20, F21 and N12, N13, N14, N16, and N18 1.6L (1598cc) engines.It is compatible with 114i, 116i, 118i, 120i, and 316i models, as well as One, Cooper S, JCW, Clubman, Countryman, and Paceman vehicles equipped with the specified engine variants.The set includes standard (STD) size main bearing shells and corresponds to part numbers 11217585452, 11217585453, 11217605502, and 11217605506.This product serves as a direct replacement for main bearings to help maintain factory-specified clearances and performance.