2026 Yamaha Outboards V6 4.2L 300 hp
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Sand N Sea Marine Group | Stuart, FL
Experience Unmatched Power with the Yamaha Outboard V6 4.2L 300 hp
Whether you are spending a sunrise on coastal fishing grounds or heading out for an ambitious offshore adventure, reliability and raw performance are non-negotiable when choosing marine power. The advanced Yamaha V6 4.2-liter outboard lineup has long been recognized as one of the ...
[read more]Experience Unmatched Power with the Yamaha Outboard V6 4.2L 300 hp
Whether you are spending a sunrise on coastal fishing grounds or heading out for an ambitious offshore adventure, reliability and raw performance are non-negotiable when choosing marine power. The advanced Yamaha V6 4.2-liter outboard lineup has long been recognized as one of the most dependable engines available. Our powerful 300 hp configuration offers a perfect blend of legendary Yamaha efficiency, impressive torque, and modern technology, making it an exceptional choice for any vessel.
The latest models continue to improve upon this trusted offshore favorite. These high-performance V6 outboards are designed not only for maximum power output but also for unparalleled control and longevity on the water.
Optimized Performance: The 4.2L Big Bore Displacement Advantage
At the heart of this powerhouse is Yamaha's advanced, big bore 4.2-liter V6 engine design. This engineering marvel utilizes plasma-fused sleeveless cylinder walls—a material that boasts strength far exceeding standard steel. By increasing the available displacement without increasing outer dimensions, these outboards achieve significantly more power and torque.
- Increased Performance: The larger bore results in enhanced horsepower while maintaining a lightweight profile for optimal handling.
- Superior Cooling & Efficiency: Micro-textured cylinder walls dramatically decrease friction loss, boosting overall performance reliability.
Advanced Control and Precision Maneuvering
Modern boating demands precise control at all speeds, and the 300 hp Yamaha Outboard meets that need with integrated digital electric steering technology. This system ensures responsive handling, making even large vessels feel nimble.
Effortless Trolling Speed Control
For fishing applications, controlling speed is paramount. The outboard features sophisticated electronic control systems designed for precise trolling speeds. With advanced autopilot options, the engine can automatically adjust RPM and shifting to maintain a target slow crawl—all while compensating dynamically for wind or current changes.
Enhanced Functionality & Security
The inclusion of premium electronics adds layers of convenience and security to your outing. Systems like Autopilot with Heading/Course Hold allow you to set complex paths, while optional theft-deterrent features provide peace of mind when the boat is docked for extended periods.
Engine Efficiency and Design Benefits
A high-performance Yamaha V6 outboard must also be fuel conscious. These engines achieve peak efficiency through electronic throttle valves working alongside Precision Multi-Point Fuel Injection, guaranteeing a perfect air-to-fuel mixture under all conditions. Furthermore, every component—from the cowling to the propeller shaft tip—has been engineered for weight savings without compromising durability or reliability.
- Fuel Economy: Advanced fuel mapping ensures maximum power and minimal consumption across various operating speeds.
- Smooth Shifting: The specialized shift dampener system provides quieter, smoother transitions between gears, enhancing the overall boating experience.
Key Features of Your Yamaha 300 hp V6 Outboard
The combination of a powerful 4.2L V6 motor and state-of-the-art electronics makes this outboard an industry leader in reliability for offshore use.
- Engine Type: Durable, high-output V6 outboards
- Horsepower Output: Robust 300 HP power rating
- Steering System: Integrated digital electric steering for responsive handling.
- Operation: Designed for both spirited cruising and highly controlled fishing applications.
| Condition | NEW | |
| Year | 2026 | |
| Make | Yamaha Outboards | |
| Model | V6 4.2L 300 hp | |
| Vehicle Type | Outboard | |
| Category | Four Stroke | |
| VIN | 6KFN1025461 | |
| Engine | F300NCB2 | |
| Propulsion | Single Outboard | |
| Propulsion Type | Powered | |
| Number of Engines | 1 | |
| Engine Type | YAMAHA | |
| Engine Power | 300 HP | |
| Engine Information | F300NCB2 | |
| Fuel Type | Gas |
| Engine | |
| Engine Type | V6 |
| Engine Power | Prop Shaft: 300hp at 5500 rpm |
| Displacement | 4.2L |
| Bore | 3.78 in (96 mm) |
| Stroke | 3.78 in (96 mm) |
| Compression Ratio | 10.3:1 |
| Throttle | Full RPM Range: 5000 ~ 6000 rpm |
| Steering | Integrated, Electric Actuation | Angle (maximum): 32° from center, either direction |
| Exhaust | Through Propeller |
| Ignition | TCI Microcomputer |
| Oil Type | Recommended: Yamalube® 4M (See owner's manual) |
| Lubrication | Wet Sump |
| Cooling | Recommended: Thermostatic Control |
| Gear Ratio (Primary) | 1.75:1 |
| Gear Shifter | Forward, Neutral, Reverse |
| Induction | EFI |
| Spark Plug | |
| Spark Plug | LFR6A-11 |
| Electric | |
| Starter | System: Electric |
| Alternator Output, Maximum | Output at W.O.T.: 50 - 70 Amp |
| Fuel System | |
| Fuel System | Ethanol Blend Limit: 10% Maximum |
| Fuel Type | Recommended: Octane 89 | Recommended Filtration: Yamaha 10-Micron Fuel / Water Separating Filter (external) |
| Dimensions | |
| Length | Shaft: 25" - 30" - 35" |
| Dimensions | Degree of Tilt: Mechanical 67°, Digital Electric Steering 69°, Bolt-on steering 70° | Degree of Trim: -3° through +16° | Mounting Centers: 28.5" |
| Capacities | |
| Oil capacity | 6.3L/6.0L |
| Weights | |
| Weight | 551 lbs (250 kg) /562 lbs (254 kg) /588 lbs (265 kg) |
| Features | |
| Features | Intake: 24 | C.A.R.B. Rating: 3-Star |
| Warranty | |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
| Engine Power | 300 HP |
A tangerine sunrise alights the shore as you load up the gear for a morning of coastal fishing. Your buddies are rearing to go—as are your twin V6 Offshore outboards. Known for their power, efficiency and outstanding 96 percent reliability,** Yamaha’s V6 4.2-liter outboards are some of the most trusted V6’s on the water. They’re also some of the nimblest, with integrated digital electric steering. This makes them more responsive than ever. Our V6 Offshore outboards have proven once again that even a trusted favorite can take an exciting turn.
Our V6 4.2-liter F300 is a reliable, offshore favorite—and it's only getting better. It now features a fresh, new cowling design (with engine-mounted Propeller Indicator Lights if rigged with Helm Master® EX), new integrated digital electric steering*, rerouted exhaust for enhanced reverse thrust and is available in Yamaha gray or pearlescent white. It’s destined to be a top choice offshore for years to come.
Features may include:
Recommended fuel: 89 Octane
Shaft lengths available: 25”, 30” and 35” (30" and 35” on F300 DEC only)
Alternator output: up to 70 ampPower and Performance
4.2 Liter Big Bore DisplacementYamaha’s 4.2-liter V6 Offshore outboards feature plasma-fused sleeveless cylinder walls, which are 60 percent harder than steel. That means larger cylinder bores for increased displacement, resulting in more power and torque, without increasing outer cylinder dimensions. It also results in dramatically lighter weight and better cooling, and “micro-textured” cylinder walls that help decrease friction loss, and further increase performance and enhance reliability.
Fuel EfficiencyFor maximum power and efficiency, electronically controlled throttle valves work in concert with Precision Multi-Point Fuel Injection to ensure a precise mix of air and fuel. In addition, six individual sensors constantly provide vital atmospheric and engine conditions to the Engine Control Module (ECM), which makes adjustments for performance.
Light WeightFrom the top of the cowling to the tip of the propeller shaft, every ounce of weight-savings has been realized for maximum performance without sacrificing durability.
Convenience and Control
Precise and Convenient TrollingSpeed Control with Pattern Shift automatically bumps engines into and out of gear to achieve sub-idle trolling speeds. Helm Master EX with Autopilot even allows you to set a target speed as low as 0.25 mph. This cues the system to auto-adjust RPM and shifting to achieve that target speed—all while adjusting for conditions such as wind or current. This provides incredible control of trolling speed—from in-gear idling to slowing to a crawl.
More Functionality / SecurityHelm Master EX includes Autopilot with Heading/Course Hold, 10+ automated modes for fishing and relaxing, in-mode joystick adjustability and the expanded ability to control up to five outboards. There’s even an optional theft-deterrent system, Y-COP®, which disables the ignition and fuel systems while docked.
Top Speed and Smooth ShiftingOur Saltwater Series II™ HP Propeller can boost top-end speed up by nearly 2 mph in lighter-weight applications. It’s also equipped with our patented Shift Dampener System (SDS®) for smoother, quieter shifting.
Estimate Payments
Payment calculations are just estimates. Rates and terms vary day to day. Not an agreement, informational purposes only. Contact dealer for current rates, terms, and payment plans, etc.
Advertised pricing excludes applicable taxes title and licensing and are subject to change without notice. Pricing may exclude any added parts, accessories or installation unless otherwise noted. Sale prices include all applicable offers. Not all options listed available on pre-owned models. Contact dealer for details.
