Yamaha - Drive Gear Engine Component 6D8-11536-01-00. Overview. This drive gear is one of those core internal parts that keeps everything turning the way it should inside your engine. It transfers motion where it's needed, and when it's worn or damaged, you'll feel it fast-usually through noise or performance issues. After working on a lot of Yamaha motors, you learn not to overlook gears like this because they're tied directly to reliability. When it's solid, the engine runs smooth and predictable every time you fire it up.. Key Features. Power Transfer Function - Moves rotational force between internal engine components for proper operation.. Precision Gear Cut - Designed for smooth engagement and reduced internal friction.. OEM Fitment - Matches Yamaha factory specifications for proper alignment and durability.. Wear-Resistant Build - Built to handle continuous load and engine stress over time.. Engine & Boat Compatibility. Designed for Yamaha outboards with internal gear-driven sys