Yamaha - Lower Unit Assembly - Gearcase & Drive System - F2.5SMHA -69M-G5300-02-4D

Overview

Even on a compact motor like the Yamaha F2.5, the lower unit plays a big role in how smoothly everything runs. This assembly is built to restore proper power transfer from the engine down to the prop, so you get steady, reliable performance every time you’re on the water. If your current unit is worn, damaged, or just not running right, swapping it out brings back that smooth, dependable feel. It’s a solid solution for keeping your small outboard running like it should.

Key Features

• Complete Gearcase Assembly – Restores smooth and efficient power transfer to the propeller.
• Durable Marine Construction – Built to resist corrosion and handle everyday use in marine environments.
• OEM Yamaha Fitment – Designed to factory specs for proper alignment and reliable operation.
• Direct Replacement Design – Ensures a straightforward swap for worn or damaged lower units.

Engine & Boat Compatibility

• F2.5SMHA - 2011-2015

FAQ

Q: What are signs the lower unit needs replacement?
A: Grinding noise, vibration, poor performance, or issues with power transfer are common signs.

Q: Is this a complete lower unit assembly?
A: Yes, it’s a full gearcase assembly ready for direct replacement.

Q: Will this improve performance?
A: If your existing unit is worn or damaged, it will restore smooth operation and efficiency.

Q: Is installation difficult?
A: It’s a manageable job for those with basic mechanical experience, but professional installation is always an option.

Q: Is this designed for smaller Yamaha outboards?
A: Yes, it’s specifically built for the F2.5 platform.

• Supersessions
  69M-G5300-01-4D, 69M-G5300-00-4D
• Engine Application
  • F2.5SMHA - 2011-2015