2026 Suzuki DF300B X
$23,098.00
Liechty Marine of Marathon | Marathon, FL
Discover the 2026 Suzuki Marine DF300B X High-Performance Outboard Motor
The new Suzuki DF300B X outboard motor sets a new standard in marine propulsion. Engineered for both extreme power and reliable everyday use, this advanced four-stroke engine is built to handle the demands of heavy models while maintaining exceptional efficiency. The 2026 ...
[read more]Discover the 2026 Suzuki Marine DF300B X High-Performance Outboard Motor
The new Suzuki DF300B X outboard motor sets a new standard in marine propulsion. Engineered for both extreme power and reliable everyday use, this advanced four-stroke engine is built to handle the demands of heavy models while maintaining exceptional efficiency. The 2026 Suzuki Marine DF300B X represents the pinnacle of outboard motor technology, combining groundbreaking mechanical systems with modern design for ultimate performance on your vessel.
Unmatched Power and Engineering Innovation
At 300 horsepower, the DF300B X delivers robust power while remaining surprisingly fuel-efficient. Suzuki has integrated several patented technologies into this three hundred horsepower outboard to ensure maximum torque delivery regardless of load or water condition.
Advanced Dual Contra-Rotating Propellers
One key differentiator is the revolutionary Suzuki Dual Propeller System. This contra-rotating propeller setup provides superior grip underwater and manages engine torque distribution across two shafts. By evenly dividing the massive motor torque, we reduce the strain on individual components, allowing for a smaller, more hydrodynamic gear case without sacrificing necessary performance or power.
Optimized Offset Drive Positioning
The design engineers focused heavily on weight distribution. By strategically positioning the crankshaft ahead of the drive shaft (offset drive), Suzuki significantly improved both compactness and handling characteristics for this powerful Suzuki outboard motor. This setup also dramatically reduces vibration by optimizing the engine's axis of inertia, leading to a smoother ride even under heavy load.
Precision Control and Reliability
Operating this high-output marine outboard requires sophisticated control. The advanced Precision Control System is a state-of-the-art, computer-based drive-by-wire system. This eliminates the friction inherent in traditional mechanical cables, providing incredibly smooth and crisp shifting actions. This precision is particularly noticeable when maneuvering around docks or operating in tight quarters.
Smart Engine Technology Features
- Knock Sensor Optimization: The integrated knock sensor constantly monitors combustion performance. More than just maximizing power output, this system actively helps to increase the overall durability and longevity of your engine.
- Fuel Efficiency Focus: Engineered for optimal use on 87 octane fuel, the DF300B X provides exceptional efficiency perfect for extended days out on larger boats.
Key Technical Specifications Summary
The Suzuki Marine DF300B X is a powerhouse built with meticulous attention to detail. Here are the core specifications of this top-tier outboard engine:
Performance Highlights
- Maximum Horsepower Output: 300 HP
- Engine Type: V6, DOHC (Double OverHead Cam) with 24 Valves
- Displacement: 4390 cc (Piston Bore of 3.74 in / Stroke of 3.82 in)
- Fuel System: Multi-Point Sequential Electronic Fuel Dual Injection, featuring Lean Burn technology for enhanced efficiency.
Operational Details
- Engine Speed Range: Operating between 5500 - 6100 RPM
- Oil Capacity (Pan): Approximately 8.5 quarts / 8.0 liters
- Recommended Transom Height: Ideal for boats requiring a transom height of approximately 25 inches.
Whether you are navigating the open ocean or maneuvering in congested waterways, the reliability and sheer power of the Suzuki DF300B X make it the ultimate choice for serious boat owners seeking a high-performance four-stroke outboard motor.
| Condition | NEW | |
| Year | 2026 | |
| Make | Suzuki Marine | |
| Model | DF300B X | |
| Vehicle Type | Outboard | |
| Category | Outboard Engines | |
| Propulsion Type | Powered | |
| Color | Nebular Black |
| Engine | |
| Engine Type | DOHC 24-Valve |
| Engine Power | Output Max: 300 HP |
| Rated Engine Speed | Operating Range: 5500 - 6100 RPM |
| Displacement | Piston: 267.9" (4390 cc) |
| Bore | 3.74 in (98 mm) |
| Stroke | 3.82 in (97 mm) |
| Cylinder Liners | V6 (55°) |
| Gear Ratio (Primary) | 2.29:1 |
| Ignition | System: Solid State Direct Ignition |
| Steering | Remote |
| Electric | |
| Alternator | 12V 54A |
| Starter | Electric - Suzuki Start System |
| Fuel System | |
| Fuel System | Delivery: Multi Point Sequential Electronic Fuel Dual Injection with Lean Burn and Oxygen Sensor |
| Dimensions | |
| Transom Height | Recommended: 25" |
| Capacities | |
| Oil capacity | Pan: 8.5 qts (8.0 lts) |
| Weights | |
| Weight | 727 lbs |
| Features | |
| Features | Trim Position: Power Trim and Tilt | Standard Propeller: Conta Rotating Propellors | Propeller Selection: TBD |
| Color | |
| Colors | Pearl Nebular Black or Cool White |
| Engine Power | Output Max: 300 HP |
Built for the everyday new DF300B is the world’s first 300 HP, four-stroke outboard with dual contra-rotating propellers. The breakthrough combination of the Suzuki Dual Propeller System and the Suzuki 2-Stage Gear Reduction aid to successfully produce better torque, engineered especially for heavy models. DF300B has been engineered to run on 87 octane fuel, perfect for everyday use on larger boats. This truly is Suzuki’s ultimate Four-Stroke Outboard Motor. Now available in Cool White and Pearl Nebular Black.
Features may include:
Giving props where props are due.The increased power of this engine requires more powerful gears, and more powerful gears take up more space. How do you design a solution that doesn’t compromise performance? Enter our contra-rotating dual propeller system. The contra-rotating propeller provides more “grip” underwater, and because contra-rotating propellers distribute the engine torque evenly over two propellers, the torque per propeller decreases and we can reduce the gear size and design a smaller, more hydrodynamic gear case.
Onboard with offset drive positioning the crankshaft in front of the drive shaft, we’ve moved the outboard’s center of gravity forward, making the outboard more compact and increasing its performance. This design also significantly reduces vibration by moving the engine’s axis of inertia—the point where engine vibrations are at a minimum—up over the upper engine mount.
Control you can technologically advanced Precision Control System is a computer-based drive-by-wire control system that eliminates the friction and resistance of mechanical control cables. Operation is smooth and precise with crisp, immediate shifting that is most evident in the low rpm range, when maneuvering around the marina and in close quarters.
Knock it out of the park.The knock sensor monitors combustion to provide you with optimized performance. In addition to maximizing power output, the system also helps increase engine durability.
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.
