AP01 Secondary Driven Clutch 21400-F39-0000 For Excalibur Supermach Bennche Bighorn This AP01 secondary driven clutch is designed to fit models including Excalibur Supermach, Bennche, and Bighorn.It replaces 21400-F39-0000 and functions as a direct-fit component for proper within the drivetrain system.The clutch is engineered for and consistent performance under regular use.It integrates with the primary drive system to transfer power efficiently to the wheels.This unit is intended for use in side-by-side vehicles and task machines that specify this model number.Installation requires standard mechanical tools and knowledge of driveline components.