This product has been superseded by: 61A-45300-34-8D

Yamaha - Lower Unit Assembly - 225 & 250 HP Drivetrain System - 61A-45300-32-8D

Overview

When you’re running a 225 or 250, the lower unit takes a beating—there’s no getting around it. If things start feeling off, like rough shifting or loss of push, it’s usually time to replace the whole unit instead of chasing internal damage. This assembly is built to handle that kind of horsepower and keep everything turning the way it should. It’s a solid, dependable fix that brings back smooth operation and the kind of control you want when you’re out on the water.

Key Features

• Complete Lower Unit Assembly – Comes fully assembled to replace worn or damaged drivetrain components in one step.

• High Horsepower Capability – Built to handle the demands of 225 and 250 horsepower Yamaha outboards.

• Smooth Gear Engagement – Supports clean shifting and steady power transfer under load.

• Corrosion-Resistant Construction – Designed to perform reliably in both freshwater and saltwater conditions.

Engine & Boat Compatibility

Compatible with select Yamaha 225 horsepower and 250 horsepower outboard engines. Always verify fitment using your engine model and specifications before installation.

FAQ

Q: What are signs my lower unit is going bad?
A: Grinding noises, slipping out of gear, vibration, or oil leaks are all common warning signs.

Q: Is this better than rebuilding my current unit?
A: If there’s major internal damage, replacing the full assembly is usually faster and more reliable.

Q: Do I need to add gear oil before use?
A: Yes, always check and fill with the correct marine gear oil before running the engine.

Q: Will this improve performance on the water?
A: It can restore smooth shifting, better acceleration, and more consistent handling if your old unit was worn.

Q: How do I maintain it after installation?
A: Regular oil changes, checking seals, and flushing after saltwater use will help extend its life.

• Supersessions
  61A-45300-32-4D, 61A-45300-33-8D, 61A-45300-34-8D, 61A-45300-34-8D