Yamaha - Drive Gear - Engine Power Transfer Component - 6H4-11536-00-00

Overview

When internal gears start wearing down, it’s usually not subtle—you’ll hear it and feel it right away. I’ve worked on engines where a worn drive gear caused everything downstream to run rough or out of sync. This gear is a key part of how power gets transferred through the system, so it has to be spot on. Once it’s replaced and set up correctly, the engine runs smoother and a lot quieter.

Key Features

• Primary Power Transfer Gear – Transfers rotational force through the engine’s internal drivetrain.
• Precision Gear Mesh – Designed for smooth engagement to reduce noise and wear.
• Hardened Gear Construction – Built to handle high loads and resist long-term wear.
• OEM-Spec Fitment – Manufactured to Yamaha tolerances for accurate alignment and operation.
• Consistent Performance Support – Helps maintain reliable operation across all engine speeds.

Engine & Boat Compatibility

Designed for Yamaha outboards with compatible internal gear and drivetrain assemblies. Commonly used across small to mid-size engines found on fishing boats, skiffs, and recreational vessels. Always verify compatibility with your specific engine before installation.

FAQ

Q: What are signs this drive gear is failing?
A: Grinding, whining noise, or inconsistent engine operation are common indicators.

Q: Can a worn drive gear affect other components?
A: Yes, it can cause uneven wear or damage to connected gears and internal parts.

Q: Is this a difficult repair?
A: Internal gear replacement requires proper tools and setup, so it’s more advanced work.

Q: What causes drive gear wear?
A: High hours, poor lubrication, or debris in the system can all contribute.

Q: Should I inspect other parts during replacement?
A: Definitely—it’s best to check related gears, bearings, and seals while everything is apart.