Yamaha Outboards 300HP | LF300ESB

Yamaha Outboards 300HP | LF300ESB: Ultimate Offshore Power with Counter-Rotation, 35-inch Shaft, and Integrated Digital Electric Steering

Master the most challenging offshore environments with the Yamaha LF300ESB outboard motor.

This commanding 300HP V6 4-stroke engine is expertly engineered for extreme multi-engine offshore installations. It provides essential counter-rotation (left-hand).

The LF300ESB boasts innovative integrated Digital Electric Steering (DES) directly within the engine. This design creates an exceptionally clean and uncluttered transom. Crafted specifically for vessels demanding an extra-extra-long (35-inch) shaft, it ensures optimal propeller submersion. This is vital for deep-V hulls and exceptionally tall transom heights.

This motor integrates seamlessly with Yamaha’s comprehensive Helm Master EX® system. You will experience intuitive “drive-by-wire” throttle and shift. Moreover, advanced boat control features, including joystick maneuverability and intelligent autopilot, are fully accessible. For the most serious offshore anglers and long-distance cruisers, the LF300ESB offers an unparalleled power solution. It combines superior digital integration with maximum versatility for extreme transom heights and precise multi-engine handling.

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Why the Yamaha LF300ESB Excels in the Most Demanding Offshore Environments

The Yamaha LF300ESB represents the pinnacle of marine propulsion technology for specialized applications. It is precisely tailored for the largest, deep-V offshore boats with exceptionally tall transoms. Its 35-inch shaft length is crucial. This length ensures optimal propeller submersion and maximum efficiency.

It prevents ventilation even in the most challenging offshore conditions. The counter-rotation is also essential. When precisely paired with a standard rotation F300ESB, it effectively neutralizes propeller torque. This results in superior tracking and reduced steering effort.

he groundbreaking integrated Digital Electric Steering (DES) is a core feature. This eliminates external hydraulic components. Therefore, you gain a remarkably clean transom. You also get incredibly smooth, precise, and responsive steering directly from the engine. This level of integration, combined with the proven 4.2L V6 platform and full Helm Master EX® compatibility, completely transforms your offshore boating experience. Navigating towering swells, holding position in strong currents, or executing precise maneuvers with a large vessel becomes remarkably effortless.

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Key Features & Benefits: Unmatched Power, Pinpoint Control, and Streamlined Design

Let’s delve into the cutting-edge technologies and robust engineering that position the LF300ESB as a premier choice for high-performance, multi-outboard setups on the largest and most specialized offshore boats.

Integrated Digital Electric Steering (DES) for Ultimate Control

The defining innovation of the LF300ESB is its integrated Digital Electric Steering (DES). This state-of-the-art system is built directly into the outboard. It eliminates external steering cylinders, pumps, and hydraulic lines. This design offers significant advantages:

• Clean Transom & Bilge: You will notice no exposed steering components. This creates a vastly cleaner and more spacious boat stern. It also simplifies maintenance.
• Precise & Responsive Steering: Enjoy fingertip control. You get instant, silky-smooth steering response. This enhances maneuverability at all speeds, crucial for multi-engine boats.
• Reduced Power Draw: DES only draws power when actively steering. Therefore, it is highly efficient.
• Simplified Rigging: Installation is cleaner. Also, there are fewer potential points of failure. This is especially beneficial for complex multi-engine setups.

Seamless Helm Master EX® System Integration

The LF300ESB is designed for full compatibility with Yamaha’s modular Helm Master EX® boat control system. With integrated DES, you unlock every Helm Master EX capability. No additional steering components are needed.

• Joystick Control: Experience intuitive, 360-degree boat maneuverability. Docking is effortless. You can make tight turns and precise low-speed maneuvers. This truly transforms how you handle large, multi-engine boats.
• Autopilot Functionality: Features like Course Hold, Heading Hold, and Track Point enable relaxed, hands-free navigation.
• SetPoint™ Modes: StayPoint™, FishPoint™, and DriftPoint™ automatically maintain your boat’s position or heading. These modes revolutionize fishing or holding steady in current.
• Pattern Steer: Pre-programmed fishing patterns help with precise lure presentation and efficient searching.

Potent 4.2L Big-Bore V6 for Exhilarating Power

At the core of the LF300ESB is a formidable 4.2L (4169cc) 60-degree V6 engine. This “big-bore” displacement comes from an advanced plasma fusion process. This process applies to the cylinder walls. It eliminates conventional steel cylinder sleeves. Instead, cylinder walls become 60% harder than steel. Consequently, this allows for larger cylinder bores. This results in significantly more power and torque without increasing outer engine dimensions. This design also contributes to lighter weight, superior cooling, and reduced internal friction. Ultimately, these factors boost both performance and long-term reliability. Expect immediate, exhilarating power delivery when you demand it.

Precision Counter-Rotation for Enhanced Balance

The LF300ESB’s left-hand (counter-clockwise) propeller rotation is paramount for multi-engine configurations. When precisely paired with a standard right-hand rotation F300ESB, the opposing forces generated by the propellers effectively neutralize each other. This dramatically reduces steering effort. It also eliminates prop walk. It results in a more stable, balanced, and comfortable ride. Furthermore, it provides superior straight-line tracking and enhanced maneuverability. This is especially true at low speeds and in reverse. This feature is crucial when docking or backing down on fish with a large vessel.

Specialized 35-inch Shaft Length for Extreme Transom Heights

The 35-inch (894mm) shaft length of the LF300ESB is a specialized offering. It is designed for applications where a standard 25-inch or even 30-inch shaft is insufficient. This length is typically needed for:

• Very Large Deep-V Offshore Boats: These vessels often have extremely high transoms. The 35-inch shaft ensures the propeller remains properly submerged. It prevents cavitation and ventilation.
• Center Engine on Multi-Engine Rigs: On some triple or quad engine installations, the center engine may require a longer shaft. This ensures optimal propeller depth relative to the hull’s deepest point. This extra-extra-long shaft ensures superior prop grip and efficiency. It is vital when encountering rough seas.

Exceptional Fuel Efficiency for Extended Range

The LF300ESB delivers commanding power, yet it boasts outstanding fuel efficiency. Its Precision Multi-Point Electronic Fuel Injection (EFI) system ensures precise fuel metering. It optimizes combustion for excellent economy. This intelligent system, combined with friction-reducing micro-textured cylinder walls, provides superb fuel economy. You’ll extend your cruising range. Therefore, you spend more time enjoying the water and less time at the fuel dock.

High-Output Charging for Extensive Electronics

Modern, well-equipped boats demand substantial electrical power. The LF300ESB impressively produces up to 70 gross amps of charging power (55A battery charging). This ample output reliably powers your growing array of onboard electronics. This includes multiple fish finders and sophisticated navigation systems. It ensures all critical systems remain fully operational throughout your longest trips.

Smooth, Quiet, and Refined Operation

Yamaha engineers meticulously refined the LF300ESB for impressively smooth and quiet operation. Engine exhaust gases route through a labyrinth of passages. They exit via an idle exhaust relief outlet, greatly reducing sound. The design minimizes vibration and noise. This creates a more comfortable and enjoyable time on the water, even during extended journeys. The new cowling design further dampens sound. It also offers a fresh, modern aesthetic.

Built for Unwavering Durability and Smart Maintenance

The LF300ESB is inherently built tough. It withstands the rigors of heavy use and harsh marine environments. Its advanced cowling drain system efficiently drains any water. This protects crucial internal components. Incoming air routes through a labyrinth of passages. These effectively trap and drain water, ensuring maximum reliability. Additionally, the outboard features Thrust Enhancing Reverse Exhaust (TERE). This innovative system keeps exhaust bubbles away from the propeller below 2500 RPM and in reverse. This means the prop bites only clean water. It results in outstanding reverse thrust and control. This is especially helpful when backing down on fish or maneuvering around docks.

For ultimate convenience, the LF300ESB includes Yamaha’s exclusive TotalTilt™ Feature. A swift double-tap of the trim button performs a full tilt up or down. This makes trailering and shallow water navigation incredibly quick. This feature is also handy for propeller changes or docking.

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Technical Specifications (Yamaha LF300ESB – 35-inch Shaft, Counter-Rotation, Integrated DES):

• Engine Type: 4-Stroke, 24-Valve, DOHC with VCT, 60-degree V6
• Prop Shaft Horsepower: 300 hp (220.6 kW) @ 5500 RPM
• Displacement: 4169 cm³ (4.2L)
• Bore x Stroke: 96.0 x 96.0 mm
• Full Throttle Operating Range: 5000-6000 r/min
• Fuel Induction System: Electronic Fuel Injection (EFI)
• Lubrication System: Wet Sump
• Engine Oil Capacity: 6.3 L (with filter)
• Alternator Output: 70 A (gross, 55A battery charging)
• Starting System: Electric Starter
• Steering: Integrated Digital Electric Steering (DES)
• Trim Control System: Power Trim and Tilt with TotalTilt™
• Gear Ratio: 1.75:1
• Shaft Length: E: 894 mm (35.2 inch) – This 35-inch extra-extra-long shaft length is ideal for vessels with exceptionally tall transoms.
• Dry Weight: 288 kg (635 lbs) – Weight with integrated DES. Weight is approximate and depends on specific configuration.
• Propeller Rotation: Counter-clockwise (Left-hand rotation) – Essential for twin/triple engine installations with a standard F300ESB to neutralize torque and improve handling.
• Ignition System: TCI Micro-computer
• Recommended Fuel: Unleaded gasoline (minimum 89 octane)
• Cooling System: Raw-water, thermostatically controlled
• Exhaust System: Through propeller hub (with Thrust Enhancing Reverse Exhaust)
• Controls: Digital Electronic Controls (DEC) – Required for full functionality and Helm Master EX compatibility.
• Cowling Design: New, modern design with optional engine-mounted Propeller Indicator Lights (if rigged with Helm Master EX).

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Optimize Your Rig with Genuine Yamaha Accessories:

To truly unlock your LF300ESB’s full potential in a multi-engine setup, consider integrating these genuine Yamaha accessories:

• Yamaha Helm Master EX® System Components: With integrated DES, you are ready for the complete suite of Helm Master EX joystick control, autopilot, and SetPoint™ features.
• Yamaha CL5 or CL7 Digital Displays: These touchscreen displays provide comprehensive engine data and seamless control for Helm Master EX features.
• Saltwater Series II™ HP Propellers: These high-performance propellers complement Yamaha’s V6 Offshore outboards. They offer excellent performance. Plus, they feature the Shift Dampener System (SDS®) for smoother, quieter shifting. Be sure to select a left-hand rotation propeller. Also, choose the appropriate pitch and diameter for your specific boat and 35-inch shaft application.
• Yamaha 10-Micron Water Separating Fuel Filter: This external filter provides superior protection against water and contaminants. It enhances reliability and extends engine longevity.

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Power Your Journey: The Yamaha LF300ESB Advantage

The Yamaha LF300ESB is more than just a powerful outboard. It is a meticulously engineered system. It delivers the pinnacle of marine performance and control. This outboard embodies Yamaha’s legacy of uncompromising quality, advanced engineering, and unwavering reliability. With its potent 300HP, groundbreaking integrated Digital Electric Steering, specialized 35-inch shaft, counter-rotation, and seamless Helm Master EX® compatibility, it offers unmatched precision and convenience. It’s the ideal choice for boaters. They demand cutting-edge technology, a clean and uncluttered transom, and Yamaha’s legendary performance for their most extreme offshore fishing, cruising, and recreational adventures.

Ready to experience the confident power and transformative control of the Yamaha LF300ESB? Contact us today. Discuss your specific high-transom, multi-engine, or specialized offshore boating requirements. Discover how this advanced outboard can elevate your time on the water. Get a personalized quote. Or, explore our full selection of Yamaha outboards. Our dedicated team is here to help you find the ideal power solution for your next marine adventure!