Yamaha - Drive Gear Engine Drive Component 6R3-11536-00-00. Overview. Drive gears are one of those parts you don't think about until something feels off in the motor. I've seen engines develop noise or rough operation just from wear in a gear set like this. When everything is meshing right, the engine runs smooth and transfers power the way it should. It's a behind-the-scenes component, but it plays a big role in overall performance.. Key Features. • Precision Gear Engagement - Ensures smooth and efficient transfer of motion within the engine.• OEM Machined Fit - Built to exact specifications for proper alignment and operation.• Hardened Gear Construction - Designed to handle continuous load and reduce long-term wear.• Supports Engine Functionality - Helps maintain proper mechanical timing and performance.. Engine & Boat Compatibility. Designed for Yamaha outboard engines utilizing internal gear-driven systems. Commonly used across a range of Yamaha outboards where reliable motion tran