Description

Twin Yamaha 300HP DEC Outboards F300UCB & LF300UCB

Overview

The Twin Yamaha 300HP DEC Outboard Package combines two of Yamaha’s most trusted offshore outboards into a complete twin-engine propulsion system. Designed for larger vessels that demand high horsepower, redundancy, and superior control, these engines deliver dependable performance in challenging marine environments.

Each engine produces 300 horsepower, providing a combined output of 600 horsepower for outstanding acceleration, cruising capability, and load-carrying performance. The combination of standard rotation and counter-left rotation ensures balanced thrust and improved handling, particularly during high-speed operation and low-speed maneuvering.

Whether used on a center console, offshore sportfishing boat, catamaran, or commercial vessel, this twin Yamaha package offers exceptional marine performance.

Key Features

The Yamaha F300UCB & LF300UCB Twin Outboard Package includes advanced features designed for offshore reliability and operator confidence.

Key highlights include:

• Twin 300HP Yamaha outboards
• Combined 600HP output
• Digital Electronic Controls (DEC)
• Electric start
• Power Trim & Tilt
• 30-inch XX-long shafts
• Standard and counter-left rotation
• Offshore-ready performance
• Smooth throttle response
• Yamaha reliability and engineering

These features help maximize performance while improving vessel control and overall boating comfort.

Yamaha Digital Electronic Controls

One of the standout features of this twin-engine package is Yamaha’s Digital Electronic Control (DEC) system.

Benefits include:

• Instant throttle response
• Smooth gear engagement
• Precise engine synchronization
• Improved maneuverability
• Reduced operator effort
• Enhanced docking control

Digital controls eliminate many of the limitations associated with traditional mechanical systems, providing faster and more accurate engine response.

For twin-engine vessels, DEC technology contributes significantly to overall handling and performance.

Offshore Performance

The Twin Yamaha 300HP Outboards are designed to deliver exceptional offshore capability.

Performance advantages include:

• Strong acceleration
• High cruising efficiency
• Excellent load-carrying ability
• Smooth operation across the RPM range
• Reliable offshore performance
• Responsive handling

The combined 600-horsepower output provides the power necessary for larger vessels carrying passengers, equipment, fuel, and supplies on extended offshore trips.

This makes the package a popular choice among serious offshore anglers and recreational boaters.

Balanced Twin-Engine Configuration

The inclusion of both standard rotation and counter-left rotation engines provides significant performance advantages.

Benefits include:

• Improved vessel balance
• Reduced steering torque
• Better low-speed handling
• Enhanced docking control
• Improved high-speed stability
• Optimized propulsion efficiency

Counter-rotation technology is essential for many twin-engine applications, helping maintain predictable handling characteristics under a variety of operating conditions.

This balanced configuration contributes directly to overall vessel performance and operator confidence.

Installation and Compatibility

The Twin Yamaha F300UCB & LF300UCB Package is suitable for a wide variety of vessel types.

Common applications include:

• Center console boats
• Offshore fishing boats
• Sportfishing vessels
• Catamarans
• Luxury cruisers
• Patrol boats
• Commercial vessels
• Performance boats

The 30-inch XX-long shafts are ideal for larger vessels requiring deeper engine mounting and improved propeller immersion in offshore conditions.

This configuration is commonly specified on modern offshore boats designed for demanding open-water operation.

Built for Reliability

Yamaha Marine has earned a worldwide reputation for producing dependable marine propulsion systems.

The Twin Yamaha 300HP DEC Outboards are engineered with:

• Marine-grade components
• Advanced corrosion protection
• Proven Yamaha engineering
• Reliable electronic systems
• Durable drivetrain construction
• Long service life

These features help minimize downtime while ensuring consistent performance throughout the life of the engines.

For many offshore operators, Yamaha reliability remains one of the most important factors in engine selection.

Technical Specifications

The Twin Yamaha F300UCB & LF300UCB Outboard Package consists of two 300HP outboard motors designed for high-performance offshore applications.

Both engines are equipped with Digital Electronic Controls (DEC), electric start, and Power Trim & Tilt systems. The package includes one standard rotation engine and one counter-left rotation engine, providing balanced propulsion for twin-engine installations.

The 30-inch XX-long shafts are designed for larger offshore vessels requiring deeper transom configurations and enhanced propeller performance.

Specifications

• Models: F300UCB & LF300UCB
• Horsepower: 300HP Each (600HP Combined)
• Throttle / Shift: Digital Electronic Controls (DEC)
• Starter: Electric
• Shaft Length: 30″ XX-Long
• Trim & Tilt: Power Trim & Tilt
• Rotation: Standard & Counter Left
• Application: Twin Engine Installation

Why Choose Twin Yamaha 300HP DEC Outboards?

The Twin Yamaha 300HP DEC Package delivers the performance, control, and reliability required for demanding offshore boating.

Reasons to choose this package include:

• Combined 600HP output
• Yamaha DEC technology
• Balanced twin-engine configuration
• Offshore-ready performance
• Premium handling characteristics
• Power Trim & Tilt convenience
• Yamaha reliability
• Strong resale value

Whether used for offshore fishing, cruising, or commercial operation, this package provides premium marine propulsion performance.

Frequently Asked Questions

How much total horsepower does this package provide?

The package includes two 300HP outboards, providing a combined output of 600 horsepower.

What is Yamaha DEC?

Digital Electronic Controls (DEC) provide electronic throttle and shift operation for smoother control and faster response.

Why does the package include a counter-rotation engine?

The counter-left rotation engine helps balance thrust and improve handling in twin-engine installations.

What shaft length do these engines use?

Both engines feature 30-inch XX-long shafts.

Is Power Trim & Tilt included?

Yes. Both engines include Power Trim & Tilt as standard equipment.

What boats are these outboards suitable for?

They are commonly installed on center consoles, offshore fishing boats, sportfishing vessels, catamarans, and luxury cruisers.

Why choose twin Yamaha 300HP outboards?

The combination of 600HP performance, DEC controls, counter-rotation capability, and Yamaha reliability makes this one of the most capable offshore propulsion packages available.