Yamaha - Lower Unit Assembly - Gearcase & Drive System - F115 - 68V-45300-13-8D

Overview

On a midrange engine like the Yamaha F115, the lower unit is doing the heavy work every time you’re on the throttle. This assembly is built to restore smooth, reliable power transfer from the engine to the prop, helping your motor perform the way it should. If your current unit is worn or damaged, replacing it brings back steady operation, clean shifting, and dependable performance whether you’re cruising, fishing, or making longer runs.

Key Features

• Complete Gearcase Assembly – Restores proper power transfer and lower unit performance.
• Durable Marine Construction – Built to handle harsh freshwater and saltwater conditions.
• Smooth Operation – Helps maintain consistent shifting and throttle response.
• OEM Yamaha Fitment – Engineered to factory specs for reliable alignment and function.

Engine & Boat Compatibility

• F115 - 2000-2014

FAQ

Q: What are signs the lower unit needs replacement?
A: Grinding noise, vibration, shifting issues, or water in the gear oil.

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

Q: Will replacing the lower unit improve performance?
A: If your current unit is worn or damaged, it will restore smooth operation and efficiency.

Q: Is installation difficult?
A: It’s a more advanced repair and typically handled by experienced technicians.

Q: Is this an OEM Yamaha part?
A: Yes, it’s a genuine Yamaha assembly built to factory specifications.

• Supersessions
  68V-45300-10-8D, 68V-45300-11-8D, 68V-45300-12-8D, 68V-45300-14-8D, 68V-45300-14-8D
• Engine Application
  • F115 - 2000-2014