Original Made in USA by Comet. 30 series driven Clutch pulley, 7" diameter with 3/4" bore. Used on Manco karts with 5hp-7hp engines. Most common belt used with this is Manco belt 5959 Or Comet 205389. This driven pulley is also used with comet Torq-a-verter kit with same belt. This Clutch is A Great Upgrade From the Chinese Stock Clutches. Better performance, Longer Lasting. Replaces Part# 217778A