Yamaha F300UCB Outboard Motor

30-Inch Shaft | DEC (Digital Electronic Control) | Electric Start | Power Trim & Tilt | Gray

The Yamaha F300UCB delivers maximum offshore performance with Yamaha’s 4.2L V6 four-stroke platform, producing a commanding 300 horsepower for center consoles, offshore fishing boats, and luxury cruisers. Built for efficiency and torque in demanding sea conditions, this engine combines advanced engineering with Yamaha’s proven reliability.

Featuring Digital Electronic Control (DEC), the F300UCB provides seamless, precise throttle and shift operation for confident handling in tight docking situations and rough offshore waters alike. The 30-inch shaft ensures ideal propeller placement for higher transoms, improving efficiency and performance. The durable Gray marine finish offers long-term corrosion resistance, even in harsh saltwater conditions.

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Key Features:

• 300 Horsepower, 4.2L V6 Four-Stroke Engine
  Offshore-grade torque, acceleration, and fuel efficiency.
• Gray Finish
  Classic Yamaha style with superior corrosion protection.
• Digital Electronic Control (DEC)
  Smooth, precise throttle and shift operation.
• 30-Inch Shaft Length
  Optimized for boats with higher offshore transoms.
• Electric Start
  Push-button ignition for fast, reliable starts.
• Power Trim & Tilt
  Adjust running angle for performance, fuel economy, and shallow-water clearance.
• Electronic Fuel Injection (EFI)
  Enhances throttle response, fuel economy, and starting reliability.

Need help choosing your engine? Check out our Yamaha engine guide.

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Frequently Asked Questions

Q: Is the F300UCB saltwater-ready?
A: Yes—Yamaha’s corrosion protection system is specifically engineered for offshore use.

Q: What does “UCB” mean?
A: “UC” refers to the 30-inch shaft length with DEC controls, and “B” identifies the model generation.

Q: Can it be paired with Helm Master EX?
A: Yes—when rigged with the appropriate components, it’s fully compatible.