Yamaha 300hp DEC Outboard F300USB
$20,952.00
The Yamaha 300hp DEC Outboard F300USB is a premium 4.2L V6 four-stroke designed for offshore boats requiring a 30-inch shaft. Featuring Digital Electronic Controls and integrated electric power steering, it delivers smooth handling, strong torque, and proven Yamaha reliability in saltwater conditions.
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Overview Yamaha 300hp DEC Outboard F300USB
The Yamaha 300hp DEC Outboard F300USB is built on Yamaha’s award-winning 4.2-liter V6 offshore platform, trusted for exceptional durability, efficiency, and smooth power delivery. Designed for boats with higher transoms, this 30-inch shaft model is ideal for offshore fishing boats, deep-V hulls, and long-range saltwater vessels.
With a refreshed cowling design, enhanced reverse thrust, and advanced digital technology, the F300USB offers confident handling and reliable performance in demanding offshore environments.
Features and Performance
- 4.2L V6 Four-Stroke Engine – Strong offshore torque with smooth, efficient acceleration
- Digital Electronic Controls (DEC) – Precise throttle and shift for effortless operation
- Integrated Electric Power Steering – Reduced steering effort and improved maneuverability
- Electronic Fuel Injection (EFI) – Reliable starts and optimized fuel efficiency
- 30″ XX-Long Shaft – Ideal for offshore boats with higher transoms
- Saltwater Series II™ HP Propeller Compatibility – Improved top-end speed in lighter applications
- Shift Dampener System (SDS®) – Quiet, smooth gear engagement
- TotalTilt™ System – One-touch full trim up or down for easy trailering
- Thrust Enhancing Reverse Exhaust – Excellent reverse thrust and docking control
- High-Output Alternator (50–70 Amp) – Powers advanced marine electronics
Why You Should Buy it
The Yamaha F300USB is an excellent choice for offshore boaters who need dependable V6 power with a 30-inch shaft and effortless digital control. Its combination of integrated electric steering, strong electrical output, and legendary Yamaha reliability makes it a smart long-term investment for serious saltwater boating.
| Specification | Details |
|---|---|
| Engine Type | Yamaha F300USB DEC Four Stroke |
| Horsepower | 300 hp |
| Cylinders | 6 (V6) |
| Displacement | 4.2 L |
| Fuel System | Electronic Fuel Injection (EFI) |
| Shaft Length | 30" (XX-Long) |
| Throttle / Shift | Digital Electronic Controls |
| Steering | Integrated Electric Power Steering |
| Starter | Electric |
| Weight | 624 lbs |
| Alternator Output | 50–70 Amp |
| Full Throttle RPM Range | 5000 – 6000 rpm |
| Degree of Trim | -3° to +16° |
| Degree of Tilt | 69° |
| Warranty | Yamaha 3-Year Warranty |
| Standard Features | Power Trim & Tilt, Owner’s Manual |
- Yamaha 300hp DEC Outboard F300USB
- Power Trim & Tilt
- Owner’s Manual




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