DPGKITS 2pcs Solara Matrix tC 2AZ-FE 2.4L OEM Engine Balance Shaft SET For 13601-28021 13602-28020 This engine balance shaft set is designed for compatibility with 2AZ-FE 2.4L engines.The set includes two balance shafts that are engineered to match OEM specifications for fit and function.Each unit is built to maintain rotational balance within the engine, supporting smooth and reduced vibration during performance.The components are identified by part numbers 13601-28021 and 13602-28020, precise replacement or upgrade capability.This kit contains two pieces, suitable for use in applicable engine rebuilds or maintenance procedures.This item is a third-party substitute.Use of brand names is limited to indicating which devices it supports.