This starter clutch assembly is compatible with Aeon ATV Minikolt 50, Aeon ATV Revo 50, Aeon ATV Revo 50 W, Aeon ATV 50 (2007 and 2001-2003 models), Aeon ATV 100, Aeon ATV Revo 100, Aeon ATV Revo 100 W, CPI ATV Crab 100 (up to 2003), CPI ATV Crab 100 (from 2004), CPI ATV Crab 100 RS (from 2004), and GOES ATV 50s.It corresponds to OEM part numbers 28220-116-000 (starter ring gear), 28410117-000 (starter freewheel), and AEO-28410117-000 (starter freewheel).The unit functions to engage the starter motor with the engine crankshaft during ignition and disengage once the engine is running to prevent reverse rotation damage to the starter.Constructed from aluminum , this component is designed to restore equipment performance specifications.The package includes the clutch assembly as shown in the product images. Important: This is a non-OEM part.Any brand or model cited is used to denote device compatibility.