Yamaha - Lower Unit Assembly - Complete Drive System - 696-45300-12-4D

Overview

When a lower unit starts giving you trouble, it’s not something you patch together—you replace it and get back on the water with confidence. The 696-45300-12-4D is a complete assembly built to restore smooth shifting and solid power transfer. It’s designed to handle real-world use, whether you’re running shallow water or putting steady hours on the engine. Bolt it on, and you’re back to that clean, reliable feel Yamaha is known for.

Key Features

• Complete Lower Unit Assembly – Includes internal components for full drive and power transfer operation.
• Genuine Yamaha OEM Build – Designed to match factory specifications for fit and performance.
• Superseded Component – 696-45300-12-4D has been replaced by 696-45300-12-8D.
• Corrosion Resistant Construction – Built to withstand harsh marine environments and extended use.
• Smooth Power Delivery – Supports proper shifting and consistent propulsion on the water.

Engine & Boat Compatibility

Compatible with select Yamaha outboards requiring this lower unit assembly. Always confirm fitment based on your exact engine model.

FAQ

Q: What are signs the lower unit needs replacing?
A: Grinding noise, shifting issues, water in gear oil, or loss of propulsion are common signs.

Q: Is this a complete assembly or do I need additional parts?
A: This is a complete unit, but you should confirm if your setup requires additional hardware.

Q: Has this part been updated or replaced?
A: Yes, it has been superseded by 696-45300-12-8D.

Q: Can I install this myself?
A: It’s possible with experience, but proper alignment and setup are important for performance.

Q: How does it perform in saltwater conditions?
A: It’s built for marine use, but regular maintenance helps extend its lifespan.

• Supersessions
  696-45300-11-4D, 696-45300-12-8D, 696-45300-12-8D