Yamaha Outboards 350HP | LF350ESA2

Yamaha LF350ESA2 Outboard: The Counter-Rotating 350HP V6 Offshore Powerhouse with a 35-inch Shaft

Dominate the open water with the Yamaha LF350ESA2 outboard. This cutting-edge 350-horsepower V6 engine delivers immense torque and thrilling speed in a remarkably lightweight package. The LF350ESA2 is a perfect choice for large offshore vessels, especially when paired with a standard-rotation engine in a twin or multi-engine configuration. Its counter-rotating (left-hand) rotation ensures optimal steering balance and enhanced control, particularly at higher speeds and during docking maneuvers.

The LF350ESA2 is built around a newly upgraded 4.3-liter V6 engine block. This robust design guarantees exceptional durability and class-leading fuel efficiency. With an extra-long 35-inch (E) shaft length, this model is perfectly suited for boats requiring an exceptionally deep shaft for optimal performance. This provides superior propeller immersion, which in turn enhances both thrust and stability, especially on very large center consoles or specialized high-transom applications. The “ESA2” designation signifies its state-of-the-art integrated Digital Electric Steering (DES) and full Helm Master EX® compatibility. This integration represents Yamaha’s latest advancements in intelligent boat control, offering an unparalleled level of precision and convenience on the water. This powerful outboard thus ensures a dominant and sophisticated presence on your transom, now often available in striking new color options.

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Unmatched Performance and Precision: Powering Your Offshore Adventures

The Yamaha LF350ESA2 marks a significant advancement in outboard technology. Its new 4.3L V6 platform delivers a superior power-to-weight ratio. This engine is over 65 pounds lighter than its closest competitor, while still generating a formidable 350 horsepower. This reduced weight directly translates to improved boat performance, enhanced fuel efficiency, and a broader range of compatible boat applications.

Beyond its impressive power, the LF350ESA2 offers extraordinary integrated boat control. The integrated Digital Electric Steering (DES) eliminates external steering pumps and hydraulic lines, resulting in a cleaner, uncluttered transom. This also provides exceptionally precise and responsive steering. When paired with Yamaha’s Helm Master EX® system, boaters gain access to intuitive joystick control, advanced autopilot features, and innovative SetPoint™ modes. For instance, maintaining position over a productive fishing spot becomes remarkably easy. The LF350ESA2 also features modern aesthetic and functional refinements, ensuring your boat not only performs exceptionally but also commands attention.

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Key Features of the LF350ESA2: Engineered for the Demands of the Open Water

Explore the advanced technologies, robust engineering, and meticulous design details. These factors establish the Yamaha LF350ESA2 as a premier choice for high-performance offshore applications.

Counter-Rotating (Left-Hand) Design

The “L” in LF350ESA2 signifies its counter-rotating capabilities. This makes it the ideal partner for a standard-rotation (F) outboard in twin, triple, or quad engine setups. This configuration helps to neutralize prop torque, providing balanced steering and superior handling, especially at higher speeds and during maneuvering.

New 4.3L V6 Engine Block

The heart of the LF350ESA2 is its entirely new 4.3-liter V6 engine block. This is a significant upgrade from previous 350hp models. It features larger intake and exhaust valves. It also boasts an 81mm electronic throttle valve. This boosts airflow and combustion. Consequently, it delivers robust torque across all RPMs.

Integrated Digital Electric Steering (DES)

Experience precise and effortless steering. Benefit from a clean, uncluttered transom. The LF350ESA2 features Digital Electric Steering (DES) integrated directly into the outboard’s bracket. This innovative design eliminates external hydraulic components. Consequently, rigging complexity is reduced. It also provides smooth, immediate steering response. This enhances control and reliability.

Exceptional Power-to-Weight Ratio

Weighing in at approximately 653 pounds (296 kg), the LF350ESA2 boasts the best power-to-weight ratio in its class for an extra-long shaft. This lighter design significantly improves boat performance. It also enhances fuel economy. Furthermore, it expands the range of suitable boat applications.

High-Output Charging System

Power all your sophisticated onboard electronics with unwavering confidence. The LF350ESA2’s advanced charging system produces up to 70 gross amps. More importantly, it delivers over 30 net amps at idle. This is nearly double the output of comparable outboards. This robust power ensures your batteries remain charged, even with multiple demanding accessories.

35-inch (E) Shaft Length

The “E” in LF350ESA2 indicates its specific 35-inch (894mm) shaft length. This “extra-long” shaft is designed for boats requiring the deepest transom height. This is often necessary for optimal performance on very large boats or in specific multi-engine setups. It provides versatile mounting options for specialized vessels.

Thrust Enhancing Reverse Exhaust (TERE)

Achieve exceptional control and precision in reverse. Yamaha’s TERE system cleverly diverts exhaust gases away from the propeller. This occurs at low RPMs (below 2,500). As a result, the propeller bites clean water. This significantly increases reverse thrust. It also greatly improves maneuverability for tasks like precise docking or backing down on fish.

TotalTilt™ for Effortless Operation

Simplify engine tilting with Yamaha’s exclusive TotalTilt™ feature. A quick double-tap of the trim/tilt button initiates a full tilt up or down. This makes trailering, mooring, and prop inspection quick and effortless. (Note: TotalTilt™ may be factory-defaulted to “OFF” for user preference, allowing activation as desired.)

Enhanced Durability and Serviceability

Built to withstand the harshest marine environments, the LF350ESA2 features heavy-duty construction. It incorporates an upgraded gearcase with a redesigned clutch dog. This ensures stronger torque transfer. Plasma-fused sleeveless cylinder technology provides exceptional strength and reduces friction. An improved water sensor and increased oil cooler capacity further boost reliability.

Modern, Sleek Design and Color Options

Inspired by the flagship XTO Offshore series, the LF350ESA2 sports a fresh cowling design. It includes raised chrome graphics and a redesigned rear panel. A water-draining air duct and optimized cowling exhaust port keep components cool. This provides a clean, premium look while enhancing functionality. This “ESA2” model is also explicitly available in traditional Yamaha gray, pearlescent white, or the new classic white finishes.

Technical Specifications: Yamaha LF350ESA2

• Engine Type: 4-Stroke, 24-Valve, DOHC with VCT, 60° V6
• Prop Shaft Horsepower: 350 hp (257.4 kW) @ 5500 RPM
• Displacement: 4256 cm³ (4.3L)
• Fuel Induction System: Electronic Fuel Injection (EFI)
• Alternator Output: 70 A (Gross), 30+ A (Net @ Idle)
• 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 inch)
• Dry Weight: Approx. 296 kg (653 lbs)
• Propeller Rotation: Counter-clockwise (Left-Hand)
• Recommended Fuel: Unleaded gasoline (minimum 89 octane)
• Controls: Digital Electronic Controls (DEC) – Required for full functionality and Helm Master EX compatibility.

Essential Accessories for Your LF350ESA2

Maximize your outboard’s performance. Seamlessly integrate it with your boat’s systems. Use these genuine Yamaha accessories:

• Yamaha Helm Master EX® System Components: Complete your integrated control system. Get advanced joystick, autopilot, and SetPoint™ functionalities.
• Yamaha CL5 / CL7 Digital Displays: These premium touchscreen displays provide comprehensive engine data. They also offer intuitive system control.
• Yamaha Saltwater Series II® Propellers (Left-Hand Rotation): Specifically designed to complement the LF350’s power, these propellers optimize thrust and efficiency for counter-rotating applications.
• Yamaha 10-Micron Water Separating Fuel Filter: Provide superior protection for your fuel system. This ensures long-term engine health and performance.

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Command the Horizon with Unmatched Power and Elegance

The Yamaha LF350ESA2 is more than just an outboard. It’s a meticulously engineered masterpiece. It is designed to deliver the ultimate offshore experience. With its class-leading power-to-weight ratio, 35-inch shaft for very large vessels, counter-rotating design for multi-engine precision, integrated digital control, best-in-class charging, and refined aesthetics, this 350HP V6 Offshore engine is the definitive choice for boaters. They demand the highest level of performance, reliability, and sophistication for their offshore vessels.

Ready to transform your boating adventures with the ultimate in offshore power and control? Explore the Yamaha LF350ESA2 today. Contact our marine experts for current pricing and availability. Let us help you equip your boat with the ultimate in offshore propulsion.