Yamaha - Propeller Shaft - Lower Unit Drivetrain - 6E5-45611-01-00

Overview

When something feels off at the prop, the shaft is always worth a closer look. It takes all the engine’s power and transfers it straight to the prop, so any bend or wear shows up fast on the water. I’ve seen even a slight tweak cause vibration or uneven performance that just doesn’t go away. Replacing it gets everything spinning true again and brings back that smooth, solid feel you expect.

Key Features

• Straight Power Transfer – Delivers engine output directly to the propeller with minimal loss.
• Hardened Steel Construction – Built to handle torque, load, and constant rotation under pressure.
• Precision Machined Fit – Ensures proper alignment within the lower unit for smooth operation.
• OEM Replacement Design – Matches original specifications for dependable installation and function.

Engine & Boat Compatibility

Designed for Yamaha 2-stroke outboard engines with standard lower unit gearcases. Commonly used on mid-range horsepower motors found on fishing boats, bay boats, and utility vessels.

FAQ

Q: What are signs of a bent propeller shaft?
A: Vibration, uneven prop rotation, or visible wobble when spinning the prop are common signs.

Q: Can I run the engine with a slightly bent shaft?
A: It’s not recommended—it can cause further damage to seals, bearings, and gears.

Q: What usually causes shaft damage?
A: Striking underwater objects or running aground are the most common causes.

Q: Is replacing a prop shaft difficult?
A: It requires opening the lower unit, so it’s more advanced and may need proper tools.

Q: Should I inspect other parts when replacing the shaft?
A: Yes, it’s a good time to check seals, bearings, and gears for any related wear.

• Supersessions
  6G5-45611-00-00