This connecting rod set is compatible with the following vehicles and engines: 316i and 318i models from the E87, E90, and E91 series, equipped with 2.0L N42B, N45B, N42B20N, N45B20A, or N46B20B engines, produced between 2003 and 2007.The set includes four connecting rods and is designed to restore functionality.It is manufactured to match the dimensional and material specifications of the connecting rods used in these applications.The rods are constructed from forged steel and feature an H-beam design.This set is intended for use with matching pistons and crankshaft specifications as originally fitted.Verify that your engine code matches one of the listed applications before installation. Note: This part is made by an independent vendor.Any brand/model mention is for compatibility purposes only.