Yamaha - Propeller Shaft - Lower Unit Drivetrain Component - 6CB-45611-00-00

Overview

If there’s one part in the lower unit that takes a beating, it’s the prop shaft. It’s handling every bit of power coming out of the engine and transferring it straight to the prop. I’ve seen these get bent from a single impact or worn over time from hard use, and once that happens, you’ll feel vibration or notice performance drop off fast. A solid, true shaft brings everything back to smooth, balanced operation.

Key Features

• Direct Power Transfer – Delivers engine output straight to the propeller with minimal loss.

• Precision Machined Shaft – Ensures proper alignment and reduces vibration under load.

• OEM Fit Accuracy – Matches Yamaha factory specs for correct installation and performance.

• High Strength Construction – Built to handle torque, impact, and continuous marine use.

Engine & Boat Compatibility

Verify compatibility with your specific Yamaha outboard model and part number before installation.

FAQs

Q1: What are signs the prop shaft is damaged?
A: Vibration, uneven prop rotation, or visible wobble when spinning the prop.

Q2: Can a bent shaft damage other parts?
A: Yes, it can wear out seals, bearings, and gears if left unchecked.

Q3: How does a prop shaft usually get damaged?
A: Most commonly from striking debris, rocks, or running aground.

Q4: Should I replace seals when changing the shaft?
A: Yes, it’s a good idea to replace seals while everything is apart.

Q5: Is this a difficult install?
A: It requires full lower unit teardown, so it’s best done with experience.