Yamaha Lower Unit Assembly – 6GS-45300-26-8D

Restore Factory Performance with a Genuine Yamaha Lower Unit

The Yamaha Lower Unit Assembly – 6GS-45300-26-8D is a complete OEM replacement designed to restore your outboard’s power, reliability, and efficiency. Built with factory-installed internal components—including the drive shaft, propeller shaft, bearings, and seals—this unit delivers Yamaha-grade precision and durability straight out of the box. Whether for recreational boating or professional marine use, it provides smooth operation, superior corrosion resistance, and long-lasting performance.

Key Features

• OEM Yamaha Quality: Genuine Yamaha engineering ensures proper fit, finish, and performance.
• Factory-Assembled Components: Includes pre-installed drive shaft, prop shaft, bearings, and seals—no parts transfer required.
• Durable Construction: Built with marine-grade materials for strength and corrosion resistance in harsh saltwater environments.
• Smooth Propulsion: Restores shifting precision and thrust response for reliable performance.
• Plug-and-Play Installation: Designed for straightforward replacement with minimal downtime.

Compatibility

• Part Number: 6GS-45300-26-8D
• Fits select Yamaha outboard engines (consult your Yamaha owner’s manual or parts diagram for exact fitment).

Ideal Use Cases

• Severe Internal Damage: Full replacement for gearcases with irreparable wear or failure.
• Saltwater Corrosion: Best option when seals or housings are compromised by salt exposure.
• Engine Refurbishment: Restores older Yamaha outboards to OEM performance levels.

Why Choose Genuine Yamaha?

Unlike aftermarket or rebuilt gearcases, Yamaha OEM assemblies are engineered to factory tolerances and designed to withstand the demands of marine use. The 6GS-45300-26-8D unit reduces installation guesswork, saves time, and ensures dependable long-term operation with Yamaha’s proven quality.

Frequently Asked Questions

Does this lower unit come pre-filled with gear oil?

No. It ships dry. Always fill with Yamaha-approved lower unit gear oil during installation.

Will this fit my Yamaha 4-stroke outboard?

Fitment depends on your engine model and year. Always verify compatibility with your Yamaha parts diagram or a certified Yamaha dealer before purchase.