Yamaha 350hp DEC Outboard F350USA

The Yamaha 350hp DEC Outboard F350USA sets a new standard for offshore performance with its advanced 4.3-liter V6 powerhead. Engineered for long-distance offshore runs and demanding saltwater conditions, this model combines extreme horsepower with a lightweight design, delivering one of the best power-to-weight ratios in its class.

Built with a 30-inch (XX-Long) shaft, the F350USA is ideal for offshore boats with higher transoms, offering confident handling, smooth acceleration, and outstanding durability.

Features and Performance

• 4.3L V6 Four-Stroke Engine – Class-leading power-to-weight with massive offshore torque

• Digital Electronic Controls (DEC) – Smooth, precise throttle and shift response

• Integrated Electric Actuation Steering – Effortless steering and superior control at speed

• 11:1 Compression Ratio – Maximized combustion efficiency for higher output

• 81mm Electronic Throttle Valve – Faster throttle response with balanced airflow

• Advanced Camshaft & Valve Lift Design – Increased combustion and torque delivery

• High-Output Alternator (50–70 Amp) – Over 30 net amps at idle for onboard electronics

• Iridium Spark Plugs & Optimized EFI Mapping – Improved ignition efficiency and power

• Heavy-Duty Clutch Dog Design – Enhanced torque transfer to the propeller

• Power Trim & Tilt – Easy adjustment for performance and trailering

Why You Should Buy It

The Yamaha F350USA is the perfect solution for offshore boaters who need maximum V6 power with a 30-inch shaft configuration. Its combination of advanced digital control, lightweight design, and proven Yamaha reliability makes it an exceptional choice for large center consoles, offshore fishing boats, and performance-driven vessels.

FAQ – Yamaha 350hp DEC Outboard F350USA

Q: What makes the F350USA different from the F350XSA?
The F350USA features a 30-inch (XX-Long) shaft, designed for boats with higher transoms.

Q: Does this model include electric steering?
Yes. Integrated electric actuation steering is standard.

Q: Is this outboard suitable for offshore saltwater use?
Absolutely. It’s engineered specifically for demanding offshore environments.

Q: Can it power advanced marine electronics?
Yes. The high-output alternator easily supports multiple onboard systems.