Yamaha F300USB 300HP DES Digital 30″ Shaft Outboard Motor

Yamaha 300HP F300USB DES Digital 30in Shaft

Designed for the tallest transoms on premium offshore vessels, the Yamaha 300HP F300USB features a 30-inch ultra-long shaft and integrated Digital Electric Steering (DES). Part of the legendary 4.2L V6 Offshore family, this model provides smooth, precise control without the complexity of external hydraulic lines. The architecture emphasizes torque density and lightweight efficiency, utilizing a 24-valve DOHC design and Variable Camshaft Timing (VCT) to deliver the explosive mid-range punch and top-end speed required for large offshore center consoles.

Focused on superior operational durability, the F300USB leverages Plasma Fusion cylinder walls for enhanced cooling and friction reduction. The chassis is shielded by multi-stage anodic protection and high-grade marine alloys to defend against oxidation during prolonged offshore service. Routine maintenance is simplified by the front-mounted freshwater flush port and easy-access internal components. This unit features a high-output 70-amp alternator (net), providing massive power reserves to maintain battery health and support high-demand tournament electronics and gyrostabilizers.

Key Features of Yamaha F300USB

• 4166cc 24-Valve 60-Degree V6.
• 300 Horsepower Prop Shaft Rating.
• 30-Inch Shaft 600 lbs Weight.
• Integrated Digital Electric Steering (DES).
• Digital Electronic Control (DEC) System.
• 70 Amp Total Output Alternator (Net).
• 1.75:1 Ratio Performance Gearcase.