Yamaha - Propeller Shaft Drivetrain Component 6G8-45611-00-00. Overview. The Yamaha Propeller Shaft 6G8-45611-00-00 is one of those parts that takes everything your engine puts out and delivers it straight to the water. When this shaft gets bent or worn, you'll feel it immediately-vibration, noise, or a drop in performance. It's constantly under load every time you're on throttle, so it needs to stay true and balanced. If your lower unit isn't running as smooth as it should, this is often a key part to check.. Key Features. • Direct Power Transfer - Delivers engine torque efficiently to the propeller for steady thrust.. • OEM Fit Precision - Built to Yamaha specifications for proper alignment and smooth rotation.. • Balanced Operation - Helps reduce vibration and maintain consistent performance at speed.. • Heavy-Duty Construction - Designed to handle continuous load, torque, and marine conditions.. Engine & Boat Compatibility. Compatible with select Yamaha outboard engines using this