Yamaha - Driven Gear - Internal Engine Gear System - 6AH-11537-00-00

Overview

Inside the engine, this driven gear is part of what keeps everything turning in sync. When it’s in good shape, the motor runs smooth and quiet without any extra noise or vibration. But once wear starts or teeth get damaged, you’ll hear it—and it usually doesn’t take long to get worse. It’s one of those internal parts that has to be right if you want the engine to keep running strong.

Key Features

• Consistent Gear Engagement – Transfers motion smoothly between internal engine components.
• Precision Tooth Profile – Designed for proper meshing to reduce noise and uneven wear.
• High-Strength Construction – Built to handle continuous rotation and engine load.
• OEM Fitment Accuracy – Matches Yamaha specifications for correct alignment and performance.

Engine & Boat Compatibility

Designed for Yamaha outboard engines utilizing this driven gear within internal gear systems. Commonly used across modern Yamaha applications where precise timing and smooth operation are essential.

FAQ

Q: What are signs a driven gear is failing?
A: Unusual engine noise, ticking, or vibration can indicate gear wear or damage.

Q: Can I keep running the engine if I hear gear noise?
A: It’s not recommended—gear damage can spread quickly and lead to bigger issues.

Q: What causes driven gear wear?
A: Lack of lubrication, debris, or long-term use under load are common causes.

Q: Is replacing this gear a simple job?
A: It usually requires internal engine access, so it’s best for someone with experience.

Q: Should I inspect other components at the same time?
A: Yes, it’s a good idea to check surrounding gears and related parts while everything is apart.

• Supersessions
  6AH-11537-00-94, 6AH-11537-01-00, 6AH-11537-01-00