Yamaha - Driven Gear Engine Drivetrain Component 6L2-11537-00-00. Overview. When internal gears start wearing down, you'll usually hear it before you see it-noise, rough operation, or inconsistent performance. The driven gear plays a key role in transferring power inside the engine, so when it's off, everything downstream feels it. I've seen motors quiet right down and run smoother just by replacing a worn gear like this. It's one of those parts that keeps everything working together the way it should.. Key Features. Efficient Power Transfer - Transmits engine power smoothly between internal components.. Precision-Cut Gear Teeth - Ensures clean engagement and reduced mechanical noise.. High-Strength Construction - Built to handle continuous load and rotational stress.. Factory-Spec Fitment - Designed for proper alignment within Yamaha engine assemblies.. Wear-Resistant Surface - Engineered for long-term durability under constant use.. Engine & Boat Compatibility. Designed for Yamaha ou