Name: Yamaha 300hp DEC Outboard F300ECB
Brand: Yamaha
SKU: NM862896095
Price: 15951.00 USD
Availability: InStock

Description

Overview Yamaha 300hp DEC Outboard F300ECB

The Yamaha 300hp DEC Outboard F300ECB is built on Yamaha’s trusted 4.2-liter V6 offshore platform and designed specifically for boats requiring a 35-inch (XXX-Long) shaft. Known for its outstanding reliability and smooth power delivery, this model is ideal for offshore fishing boats, deep-V hulls, and vessels operating in rough saltwater environments.

With a refreshed cowling design, enhanced reverse thrust, and Digital Electronic Controls, the F300ECB offers confident handling, excellent maneuverability, and long-term durability.

Features and Performance

4.2L V6 Four-Stroke Engine – Strong offshore torque with smooth, efficient performance
Digital Electronic Controls (DEC) – Precise throttle and shift response
Electronic Fuel Injection (EFI) – Reliable starts and optimized fuel delivery
35″ XXX-Long Shaft – Ideal for offshore boats with extra-high 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 easy trailering
Thrust Enhancing Reverse Exhaust – Superior control when docking or reversing
High-Output Alternator (50–70 Amp) – Supports advanced marine electronics

Why You Should Buy it

If your offshore boat requires a 35-inch shaft and dependable V6 power, the Yamaha F300ECB is an excellent choice. Its combination of digital control, smooth performance, and Yamaha’s legendary offshore reliability makes it a smart long-term investment for serious saltwater boating.

Specifications

Specification	Details
Engine Type	Yamaha F300ECB DEC Four Stroke
Horsepower	300 hp
Cylinders	6 (V6)
Displacement	4.2 L
Fuel System	Electronic Fuel Injection (EFI)
Shaft Length	35" (XXX-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

What’s Included

Yamaha 300hp DEC Outboard F300ECB
Power Trim & Tilt
Owner’s Manual

FAQ

Frequently Asked Questions About Yamaha 300hp DEC Outboard F300ECB

What should buyers notice about the control system on Yamaha 300hp DEC Outboard F300ECB?

The control specification on Yamaha 300hp DEC Outboard F300ECB is one of its defining details: Digital Electronic Controls, Command Link Controls with Remote Hydraulic Steering, and a 35" (XXX-Long) shaft are all part of the listed configuration. That tells buyers this engine is arranged for a more integrated helm setup than a portable tiller model.

How is this motor controlled and started?

The control layout on this offshore outboard is clearly helm-oriented, with a 35" (XXX-Long) shaft, Command Link Controls with Remote Hydraulic Steering, and Electric start and Digital Electronic Controls. That tells buyers this engine is arranged very differently from a small tiller outboard and suits a more integrated control setup.

What stands out about the powerhead on this motor?

The specification centers on a 4.2 L V6 four-stroke engine with Electronic Fuel Injection (EFI). For buyers comparing nearby models, that matters because the row clearly sets out the displacement, cylinder count, and fuel system instead of leaving the motor’s character to the horsepower number alone.

Is there useful onboard charging capacity on this outboard?

A listed alternator output of 50–70 Amp is a major part of this engine’s overall profile. On a larger offshore-style motor, that figure matters because it speaks to the electrical support available while running more demanding onboard systems.

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