Yamaha F300-F350 V8 Lower Unit | YA-G8-10 | 5.3L 4-Stroke (2008-2019)

Restore the massive torque and smooth cruising power of your offshore powerhouse with this Premium Aftermarket Replacement for the Yamaha F300 and F350 V8 engines. Specifically engineered for the 5.3L V8 engine block, this unit features a Heavy-Duty Bolt-In Carrier system designed to maintain precise gear alignment under extreme stress. Whether you are running a heavy center console or a large offshore express, this gearcase delivers the high-output durability required for Yamaha’s most powerful 4-stroke platform.

V8 Engine Optimization: Built to withstand the high-torque loads of 300HP and 350HP applications.

Superior Alignment: The Bolt-In Carrier Design provides enhanced structural integrity compared to standard units.

Offshore Ready: Marine-grade components engineered for long-term reliability in harsh saltwater environments.