Model Name: 5LP-15515-10-00/5LP-15590-00-00 Special Features: Direct Replacement of Parts Material Type: Metal : China OEM Code: 5LP-15515-10-00/5LP-15590-00-00 Applicable Model: 660R YFM660R 2001-2003 This Motorcycle Engine Starter Clutch Assy Overrun Clutch One Way Bearing Beads is designed for the 660R YFM660R models from 2001 to 2003.Made from metal, the clutch assembly provides and is built to endure the demands of off-road use.It serves as a direct replacement for parts, compatibility and straightforward installation without the need for special tools or complex procedures.The design adheres to the specifications of the 660R models listed, allowing for integration into the engine system.Its construction supports consistent performance under various operating conditions.The product is manufactured under quality control standards and tested for thermal resistance, with materials emitting less than 105℃ under load.This starter clutch assembly functions as both a replacement and an upgrade to support the performance and of the 660R motorcycle.