New
Honda15 HP
Honda BF15
2016 · gasoline
$2,200.00
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Used
Yamaha
Yamaha F300X
$11,300.00
Yamaha F300X is a powerful 300 hp four-stroke V6 outboard with EFI, designed for rugged marine use and excellent offshore performance.
Horsepower
300 HP
Fuel Type
gasoline
Year
2023
Hours
156
Displacement
4.2L
Stroke
4-stroke
Rated Output
222 kW / 300 mph
Rated Speed
6000rpm
In Stock (3 available)
Free shipping on orders over $500
90-day warranty included
Description
Buy used Yamaha F300X 4-Stroke outboard engines or explore new engines for sale built for premium offshore performance and dependable marine power. The Yamaha F300X is a preferred choice for buyers searching for high-performance V6 outboard motors, replacement marine engines, and fuel-efficient offshore propulsion systems. Designed for reliability, smooth acceleration, and long-term durability, this outboard delivers exceptional performance for recreational and heavy-duty boating applications.
The Yamaha F300X 4-Stroke outboard is engineered to provide strong power output, responsive handling, and efficient operation across demanding marine conditions. Built for offshore capability and larger vessels, this engine delivers dependable propulsion with refined on-water performance.
Powered by a robust 4.2-liter, 24-valve, DOHC V6 platform, the Yamaha F300X combines advanced engineering with proven marine durability. Its high-capacity design supports strong mid-range torque and consistent performance throughout extended boating sessions.
Equipped with Electronic Fuel Injection (EFI), the engine optimizes fuel delivery for improved combustion efficiency and responsive throttle control. Advanced Variable Camshaft Timing technology further enhances power delivery while maintaining efficient fuel consumption across a broad RPM range.
Known for dependable operation and excellent fuel economy, Yamaha outboards continue to be trusted by boat owners seeking premium marine performance and long-term ownership value. The F300X delivers smooth acceleration and balanced output for a confident offshore boating experience.
Ideal for offshore boats, center consoles, larger recreational vessels, and demanding marine applications, the Yamaha F300X remains a trusted solution for advanced marine propulsion and dependable performance.
Key Features:
• Yamaha F300X 4-Stroke outboard engine
• 4.2-liter 24-valve DOHC V6 platform
• Electronic Fuel Injection (EFI) system
• Advanced Variable Camshaft Timing technology
• Strong acceleration and smooth power delivery
• Excellent fuel efficiency
• Responsive throttle performance
• Built for offshore and heavy-duty use
• Durable marine construction
• Designed for dependable long-term operation
Specifications
SKUY662431
BrandYamaha
CategoryOutboard Engines
ConditionUsed
Horsepower300 HP
Fuel Typegasoline
Year2023
Displacement4.2L
No. of Cylinders6 cylinders
Stroke4-stroke
Shaft Length25
Weight562.00 lbs
Hours156
Rated Output222 kW / 300 mph
Rated Speed6000rpm
Cylinder Bore x Stroke96 mm × 96 mm / 3.78 in × 3.78 in
Combustion System4-stroke, DOHC, electronic fuel injection (EFI)
AspirationNatural
Alternator50-amp
Dry Weight255 kg / 562 lbs
ControlsDigital Electronic Control (DEC) or mechanical
Frequently Asked Questions
What is the Yamaha F300X outboard?
The Yamaha F300X is a 300 HP four-stroke outboard motor with a DOHC 24-valve 60° V6 design and electronic fuel injection (EFI). It’s built for high-performance offshore boats and serious boating applications.
What type of engine does it use?
It uses a 4-stroke, 24-valve, DOHC V6 engine with Variable Camshaft Timing (VCT) for strong torque and efficient performance across the RPM range.
How much horsepower does it deliver?
The F300X delivers 300 horsepower (about 220.6 kW), giving excellent thrust and speed for offshore and heavy loaded boats.
What kind of fuel should I use?
Yamaha recommends unleaded gasoline with a minimum octane rating of about 89 (regular automotive fuel) for the best balance of performance and economy.
What is the recommended RPM range at full throttle?
The recommended wide-open throttle range is 5000–6000 rpm, where the engine makes peak power and performs most efficiently.
Does it have electric start and trim/tilt?
Yes — the F300X includes a reliable electric start and Power Trim & Tilt, which allows quick adjustments of the motor angle for improved performance and handling.
What shaft length options are available?
Most F300X models come with a 25″ (X-Long) shaft, which is suitable for many offshore hulls and deeper transom heights. Confirm your boat’s required transom height before selecting.
Is the Yamaha F300X good for offshore boating?
Yes. The Yamaha F300X is ideal for offshore use, offering excellent torque, reliability in rough water, and advanced corrosion resistance for saltwater environments.
Does the Yamaha F300X have digital controls?
Yes. The Yamaha F300X is compatible with Yamaha Digital Electronic Controls (DEC) and integrates with Command Link Plus gauges and displays.
Is the Yamaha F300X fuel-efficient?
For a 300HP outboard, the Yamaha F300X is considered very fuel-efficient, thanks to advanced fuel injection, variable cam timing, and optimized combustion design.
What boats are best suited for the Yamaha F300X?
Center console boats Offshore fishing boats Dual-console boats Large pontoons Performance and deep-V hulls
Is the Yamaha F300X reliable?
Yes. Yamaha outboards are known for long service life and low maintenance, and the F300X is one of Yamaha’s most proven high-horsepower models.
Does the Yamaha F300X require a lot of maintenance?
Routine maintenance includes: Oil and filter changes Lower unit gear oil service Water pump inspection Spark plug replacement.
Is the Yamaha F300X suitable for twin or triple engine setups?
Yes. The Yamaha F300X is commonly used in twin, triple, and quad outboard configurations on larger offshore boats.
