Yamaha - Gear - Lower Unit Drive Component - 68S-45571-00-00

Overview

When gears start wearing down, you’ll usually hear it before anything else—grinding, slipping, or rough engagement. This 68S-45571-00-00 gear is built to keep your lower unit running smooth and transferring power the way it should. It’s one of those internal parts you don’t think about until performance drops, then it becomes critical. Swapping in a genuine Yamaha gear helps bring everything back to tight, reliable operation.

Key Features

• Precision-Cut Gear Teeth – Ensures smooth engagement and consistent power transfer.
• OEM Yamaha Fitment – Designed to match factory specs for proper alignment and function.
• High-Strength Construction – Built to handle torque and continuous marine use.
• Wear-Resistant Design – Helps extend service life under load and high RPM conditions.
• Restores Drive Performance – Ideal for replacing worn or damaged internal gears.

Engine & Boat Compatibility

Compatible with select Yamaha outboards using this lower unit gear configuration. Verify fitment based on your specific engine model.

FAQ

Q: What are signs of a worn gear?
A: Grinding noise, slipping under load, or rough shifting are common indicators.

Q: Can I replace just one gear?
A: You can, but it’s smart to inspect the entire gear set for wear at the same time.

Q: Is this a difficult repair?
A: It requires opening the lower unit, so it’s best for experienced techs or mechanics.

Q: What causes gear failure?
A: Low gear oil, water intrusion, or long-term wear can all lead to damage.

Q: Will this fix shifting issues?
A: If the issue is gear wear, yes—it can restore proper engagement and operation.