A reliable drivetrain starts with precision-fit components, and the Yamaha Straight Key (90282-03012-00) is one of those small but vital pieces that keeps everything running smoothly. Designed to lock shafts and gears together, this genuine Yamaha OEM key ensures solid power transfer without slippage, even under high torque and demanding conditions. Over time, wear and corrosion can compromise its hold, leading to inefficiencies that can impact performance. Swapping out a worn key is a simple but crucial fix to keep your engine in peak condition.. Built for Strength & Stability:. OEM-Exact Fit - Precision-engineered to Yamaha's strict standards for a seamless install.. High-Durability Material - Withstands high torque, rotation, and constant load stress.. Prevents Gear Slippage - Maintains a secure lock between keyway-driven components.. Ideal for:. Ensuring smooth power transfer without unwanted movement.. Preventing wear and drivetrain inefficiencies caused by a loose connection.. Re