Yamaha 300hp DEC Outboard F300UCB
$15,749.00
The Yamaha 300hp DEC Outboard F300UCB is a premium 4.2L V6 four-stroke built for offshore boats requiring a 30-inch shaft. Featuring Digital Electronic Controls and smooth, responsive power delivery, it’s designed for reliability, control, and long-range saltwater performance.
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Overview Yamaha 300hp DEC Outboard F300UCB
The Yamaha 300hp DEC Outboard F300UCB is engineered for serious offshore boaters who demand strong V6 power and a longer 30-inch shaft configuration. Built on Yamaha’s legendary 4.2-liter V6 platform, this outboard delivers smooth acceleration, high torque, and exceptional durability in challenging saltwater environments.
With a refreshed cowling design, enhanced reverse thrust, and Digital Electronic Controls, the F300UCB provides precise handling and confidence for offshore fishing, cruising, and long-distance runs.
Features and Performance
- 4.2L V6 Four-Stroke Engine – Proven offshore power with smooth, efficient operation
- Digital Electronic Controls (DEC) – Precise throttle and shift for effortless control
- Electronic Fuel Injection (EFI) – Reliable cold starts and optimized fuel delivery
- 30″ XX-Long Shaft – Ideal for offshore boats with higher transoms
- Saltwater Series II™ HP Propeller Compatibility – Improved top-end performance in lighter boats
- Shift Dampener System (SDS®) – Quieter, smoother gear engagement
- TotalTilt™ System – One-touch full trim up or down for trailering convenience
- Thrust Enhancing Reverse Exhaust – Strong reverse thrust and docking control
- High-Output Alternator (50–70 Amp) – Supports advanced marine electronics
Why You Should Buy it
The Yamaha F300UCB is the right choice for offshore boaters who need dependable V6 power with a 30-inch shaft and modern digital control. Its combination of durability, smooth performance, and Yamaha’s legendary reliability makes it a smart investment for demanding saltwater applications.
| Specification | Details |
|---|---|
| Engine Type | Yamaha F300UCB 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 | Command Link Controls with Remote Hydraulic Steering |
| Starter | Electric |
| Weight | 562 lbs |
| Alternator Output | 50–70 Amp |
| Full Throttle RPM Range | 5000 – 6000 rpm |
| Degree of Trim | -3° to +16° |
| Degree of Tilt | 70° |
| Warranty | Yamaha 3-Year Warranty |
| Standard Features | Power Trim & Tilt, Owner’s Manual |
- Yamaha 300hp DEC Outboard F300UCB
- Power Trim & Tilt
- Owner’s Manual



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