Material: metal components Package Includes: Starter Clutch Outer Assy, Primary Driven Gear, Clutch One Way, Friction Ring, Needle Roller Bearing OEM Codes: 28125-MEY-671, 91012-PN6-701, 28115-MEY-670, 35T 28110-MEY-670 Special Features: Stronger Roller Performance Products, Hardened and Ground for Improvement Applicable Models: TRX450ER 2006-2014, TRX450R 2006-2009, CRF450X 2005-2009, 2012-2017 External Testing Certification: ISO9001 Upgrade the engine performance of your motorcycle with the Starter Clutch Outer Assy Kit, engineered for in off-road conditions.This assembly is designed as a direct replacement for components, compatibility and ease of installation.Constructed from metal materials that are hardened and ground, the kit enhances operational and wear resistance.The inclusion of a reinforced roller and needle roller bearing supports consistent engine function under heavy loads and extreme use.This kit is compatible with specific models including TRX450ER, TRX450R, and CRF450X within the specified year ranges.Certification to ISO9001 standards confirms compliance with established quality requirements.The provided OEM codes help verify part suitability and design accuracy.The package contains all necessary components for installation: Starter Clutch Outer Assy, Primary Driven Gear, Clutch One Way, Friction Ring, and Needle Roller Bearing.Designed for straightforward integration into the existing engine system, this kit allows for efficient replacement without the need for modifications.