Yamaha Drive Gear 6X4-47731-01-00. Overview. The Yamaha Drive Gear 6X4-47731-01-00 is a genuine original equipment manufacturer component designed to transmit power efficiently within your Yamaha system. This drive gear plays a crucial role in transferring rotational force, ensuring smooth operation and proper mechanical function.. Engineered to Yamaha's exact specifications, this gear provides a precise fit and dependable durability. It is an ideal replacement for worn or damaged drive gears, h