Yamaha Z300 HPDI Lower Unit Replacement | YA-G6-21 | V6 3.3L (2004-2007)

Restore your boat’s performance and eliminate gearcase anxiety with this Premium Aftermarket Replacement for the Yamaha Z300 V6 3.3L HPDI. Engineered specifically for high-torque offshore applications, this Heavy-Duty Bolt-In Carrier unit ensures precise gear alignment and maximum structural integrity. Whether you are navigating heavy chop or pushing for top-end speed, this lower unit is built to withstand the rigors of the 300HP HPDI engine.

Maximum Durability: Features a Reinforced Bolt-In Carrier for superior strength over standard clip-in styles.

Ready to Bolt-On: Precision-engineered for a Direct OEM Fit with no modifications required.

Versatile Application: Available for both 25″ and 30″ shaft configurations to suit your specific hull depth.