Yamaha - Driven Gear - Powerhead Drivetrain - 61A-11537-00-00

Overview

When internal gears start wearing down, you’ll usually hear it before you see it—noise, vibration, or just a rough feel when the engine’s running. The driven gear works alongside the drive gear to keep everything turning in sync, so when it’s off, the whole system feels it. I’ve seen engines smooth right back out after replacing worn gears like this. It’s one of those parts that keeps everything working together the way it should.

Key Features

• Matched Gear Engagement – Works with the drive gear to ensure smooth and consistent operation.
• Hardened Metal Construction – Built to handle load, heat, and long-term wear.
• Precision Fit Tolerances – Designed to align correctly within the engine assembly.
• Reliable Power Transfer – Supports steady engine performance across all speeds.
• Durable Internal Component – Engineered for long service life in demanding conditions.

Engine & Boat Compatibility

Designed for Yamaha outboard engines with compatible internal drivetrain systems. Commonly used in small to mid-range horsepower outboards found on fishing boats, skiffs, and utility vessels. Always confirm compatibility with your specific engine model and configuration.

FAQ

Q: What does a driven gear do in the engine?
A: It works with the drive gear to transfer motion and keep internal components operating in sync.

Q: What are signs this gear is worn or damaged?
A: Unusual noise, vibration, or inconsistent engine operation can point to gear wear.

Q: Should both drive and driven gears be replaced together?
A: It’s often recommended to inspect both and replace as needed to ensure even wear and proper function.

Q: Is this a difficult part to install?
A: It usually requires engine disassembly, so it’s best handled by someone with mechanical experience.

Q: What causes gear wear over time?
A: Normal use, lack of proper lubrication, or contamination can all contribute to wear.