This starter clutch assembly is designed to engage the engine crankshaft when the starter motor operates, allowing the engine to start while preventing reverse rotation damage once the engine is running.It functions as a direct replacement to restore starting performance.Constructed from forged steel, this unit corresponds to OEM code 1VJ-15590-00-00.Compatible with XT600Z and XT600 models from 1986 to 1990, and XT500Z models from 1987 to 1989.The package includes one starter clutch assembly.Color and appearance match the product image.