Yamaha - Gear 1 Assembly - Lower Unit Drive Component - 697-45560-00-00

Overview

When you’re inside a Yamaha lower unit, this is one of those components that everything depends on working right. The 697-45560-00-00 Gear 1 assembly handles a big part of the load and keeps power moving smoothly through the gearcase. It’s not something you replace often, but when you do, you want it done once and done right. This is the kind of part that brings everything back to smooth, solid operation.

Key Features

• Genuine Yamaha OEM Assembly – Built to Yamaha specifications for proper fit and performance.
• Primary Drive Component – Plays a key role in transferring engine power through the lower unit.
• Heavy-Duty Construction – Designed to handle torque and load under real marine conditions.
• Precision Gear Engagement – Ensures smooth operation and proper alignment within the gearcase.
• Rebuild Ready Part – Ideal for lower unit repairs and complete internal service.

Engine & Boat Compatibility

Compatible with select Yamaha outboards using this Gear 1 assembly configuration. Always confirm fitment based on your exact engine model.

FAQ

Q: What are signs this gear assembly needs replacing?
A: Grinding noise, slipping, or visible gear damage during inspection are common signs.

Q: Can I run the engine with worn gears?
A: It’s not recommended—worn gears can lead to further internal damage.

Q: Is this difficult to install?
A: It requires lower unit disassembly, so it’s best handled by someone experienced with gearcase work.

Q: Should I replace other parts at the same time?
A: It’s a good idea to inspect bearings, seals, and related gears during service.

Q: Is this suitable for saltwater use?
A: Yes, it’s built for marine environments, but proper maintenance is key.