Name: Yamaha 300hp DEC Outboard F300UCB
Brand: Yamaha
SKU: NM618435877
Price: 15749.00 USD
Availability: InStock

Description

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.

Specifications

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

What’s Included

Yamaha 300hp DEC Outboard F300UCB
Power Trim & Tilt
Owner’s Manual

FAQ

Frequently Asked Questions About Yamaha 300hp DEC Outboard F300UCB

What should buyers notice about the control system on Yamaha 300hp DEC Outboard F300UCB?

The control specification on Yamaha 300hp DEC Outboard F300UCB is one of its defining details: Digital Electronic Controls, Command Link Controls with Remote Hydraulic Steering, and a 30" (XX-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.

Is this outboard set up for tiller use or helm control?

The control layout on this offshore outboard is clearly helm-oriented, with a 30" (XX-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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