One Way Bearing Starter designed for compatibility with models including DRZ400E, DRZ400S, DRZ400SM, LTZ400, KFX400, KLX400R, and DVX400.Constructed from -strength steel for under conditions.Functions as an overrunning clutch to enable smooth engagement and protect the engine from reverse rotation stress.Direct replacement part with no modifications required.Suitable for use in -temperature environments. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.