Yamaha - Drive Sprocket 13 Tooth Drivetrain Component 93812-13022-00. Overview. You can usually feel a worn sprocket before you even spot it-power gets inconsistent, and the drivetrain starts sounding rough. I've replaced plenty where the teeth were just worn enough to cause slipping under load. The Yamaha Drive Sprocket 13 Tooth 93812-13022-00 helps bring everything back into smooth, reliable operation. It's a simple part that keeps your drivetrain working the way it was designed.. Key Features. • 13 Tooth Gear Configuration - Provides proper gearing for balanced performance and control.. • Precision Tooth Profile - Ensures smooth chain engagement and reduces wear.. • Yamaha Engineered Fit - Built to match factory alignment and mounting specifications.. • Supports Consistent Power Transfer - Helps maintain efficient drivetrain operation.. • Durable Metal Construction - Designed to handle load, friction, and long-term use.. Engine & Boat Compatibility. The Yamaha Drive Sprocket 13 Toot