Yamaha - Driven Gear 2 Engine Gear Train Component 6EK-11567-00-00. Overview. When you're inside the powerhead and dealing with gears, everything has to line up and run clean or you'll hear it right away. I've seen worn driven gears cause noise, uneven operation, and long-term wear on surrounding parts. This gear plays a key role in keeping internal timing and rotation consistent. When it's in good shape, the engine runs smooth and quiet like it should.. Key Features. • Precision Gear Tooth Design - Ensures smooth meshing with mating gears for reliable operation.• Consistent Power Transfer - Helps maintain steady rotation within the engine gear train.• Hardened Metal Construction - Built to handle load, friction, and continuous engine operation.• Reduced Internal Wear - Designed for clean engagement to minimize stress on surrounding components.• Exact Yamaha Fitment - Matches factory specifications for proper alignment and function.. Engine & Boat Compatibility. Designed for Yamaha out