Yamaha - Gear 1 (26T) - Lower Unit Gear - 6DB-45560-00-00

Overview

When you’re dialing in a Yamaha lower unit, the first gear in the set plays a big role in how everything feels once you’re on the water. This 26-tooth gear is built to engage clean and carry load without hesitation, especially when you’re shifting into gear or pushing through rough conditions. I’ve seen plenty of worn gears cause vibration and noise that throws everything off. Put in a solid gear like this, and the drivetrain settles back into that smooth, reliable feel you expect from Yamaha.

Key Features

• 26-Tooth Gear Profile – Designed for consistent engagement and smooth rotation within the gear set.
• Heavy-Duty Construction – Built to handle torque and repeated use without early wear.
• Smooth Gear Interaction – Helps reduce vibration and noise during operation.
• Precision Fit Design – Matches Yamaha specifications for proper alignment and dependable performance.
• Corrosion-Resistant Build – Holds up against moisture and harsh marine conditions inside the lower unit.

Engine & Boat Compatibility

Designed for Yamaha outboard lower units requiring a 26-tooth Gear 1 configuration. Commonly used in mid to higher horsepower applications across a variety of recreational and working boats.

FAQ

Q: How do I know if this gear needs to be replaced?
A: Signs include grinding noises, rough shifting, or visible wear when inspecting the gear teeth.

Q: Should I replace this gear alone or with others?
A: It’s best to inspect the full gear set. If other gears show wear, replacing them together ensures proper performance.

Q: What causes this gear to wear out?
A: Lack of maintenance, contaminated gear oil, or heavy load over time can lead to premature wear.

Q: Is installation complicated?
A: It requires proper tools and knowledge to set spacing and alignment correctly, so experience is important.

Q: Does saltwater impact this gear?
A: Yes, saltwater can increase wear if maintenance is neglected, so regular service and flushing are key.