Brand New CLUTCH DRIVEN GO KART MINI BIKE 30 SERIES TORQUE CONVERTER 5/8" 7" Diameter, FITS MINI BIKES, GO KART, LAWNMOWER, AND MANY MORE. 30 SERIES TORQUE CONVERTER - 7" DIAMETER - 5/8" SHAFT BORE 3/16 KEY WAY. Replaces: Comet 219457A,21955A,219456A .Yerf Dog Q43201W