Yamaha - Propeller Shaft - Drivetrain Component - 6K1-45611-29-00

Overview

The Yamaha Propeller Shaft | 6K1-45611-29-00 is one of the core pieces that actually puts power into the water. If this shaft isn’t straight and solid, you’ll feel it right away—vibration, noise, or a loss of performance. It takes everything the engine delivers and transfers it directly to the prop, so it has to handle serious load every time you throttle up. When you’re rebuilding a lower unit or fixing damage, this is not a part you cut corners on.

Key Features

• Direct Power Transfer – Carries engine torque straight to the propeller for reliable propulsion.

• Precision Machined Shaft – Ensures proper alignment and smooth rotation under load.

• High-Strength Construction – Built to handle torque, impact, and continuous operation.

• Balanced Performance – Helps reduce vibration and maintain smooth drivetrain operation.

Compatibility

Compatible with select Yamaha outboard engines using this propeller shaft configuration.
Typically used in mid to larger horsepower Yamaha lower units.
Always verify compatibility using your engine model and part number.

FAQs

Q: What are signs a propeller shaft is bent?
A: You’ll feel vibration, hear unusual noise, or notice uneven prop rotation.

Q: Can I run the boat with a slightly bent shaft?
A: It’s not a good idea—it can damage seals, bearings, and the entire lower unit.

Q: Does hitting debris always damage the shaft?
A: Not always, but even minor impacts can cause slight bends that get worse over time.

Q: Is this a DIY replacement?
A: It’s doable if you’re experienced, but it usually involves a full lower unit teardown.

Q: How do I prevent shaft damage?
A: Avoid shallow impacts and inspect the prop area after any strike.

• Supersessions
  6K1-45611-21-00