Yamaha F300ECB Outboard Motor

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

The Yamaha F300ECB Outboard Motor is built for offshore boats that demand power, control, and dependable performance. Using Yamaha’s proven 4.2L V6 four-stroke platform, this 300-horsepower model delivers strong torque, confident acceleration, and efficient cruising ideal for deep-transom center consoles and heavy offshore rigs. The extra-long 35-inch shaft helps maintain proper propeller depth in rough water, giving you better lift, grip, and running consistency.

Its Digital Electronic Control (DEC) system adds smooth, cable-free throttle and shift operation, making everything from low-speed maneuvering to open-water cruising feel more controlled and predictable. Finished in Yamaha’s classic Gray, the F300ECB also offers excellent corrosion resistance for long-term saltwater use.

Key Features:

•  300 Horsepower, 4.2L V6 Four-Stroke Engine-Delivers strong offshore torque and confident top-end performance.
•  Gray Finish-Classic Yamaha look with durable corrosion protection for saltwater duty.
•  Digital Electronic Control (DEC)-Provides precise, responsive throttle and shift operation with minimal effort.
•  35-Inch Shaft Length-Made for deep-transom offshore boats requiring extra running depth.
•  Electric Start-Push-button ignition ensures quick, reliable starts.
•  Power Trim & Tilt-Dial in the running angle for better efficiency, performance, or shallow-water operation.
•  Electronic Fuel Injection (EFI)-Supports smooth starts, crisp throttle response, and solid fuel economy.

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

Frequently Asked Questions

Q: What does the “B” stand for in F300ECB?

A: It identifies the model generation and rigging compatibility within Yamaha’s DEC lineup.

Q: Can I use this in saltwater?

A: Yes—Yamaha engineers this model with advanced corrosion-resistant materials and coatings for offshore environments.

Q: Why choose a 35-inch shaft model?

A: Boats with deeper transoms need the extra shaft length to maintain proper prop depth and consistent performance in rough or offshore conditions.