674 Great Northern Rd, Sault Ste. Marie, ON P6B 5A2  

Suzuki Marine                                           

ID # 34340885

Suzuki DF300B Black

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Overview

Whether you’re boating for leisure or to make a living, this drive-by-wire series of Suzuki outboard motors offers the most sophisticated technology and promises a clean and quiet boating experience.

Specifications
Model
DF300B
Category Name
Outboard Engines
Year
2024
Manufacturer
Suzuki
Color
black
Weight
X: 726 XX: 745
Steering
Remote
WARRANTY
60 month warranty ( includes 36 month factory warranty plus 24 month promotion warranty)
Gear Ratio
2.29:1
Engine Type
DOHC 24-Valve
Bore X Stroke
98 (3.74) x 97 (3.82)
Trim Position
Power Trim and Tilt
Transom Height
X: 25 XX: 30
Ignition System
Solid State Direct Ignition
Operating Range
5300 - 6300 (RPM)
Starting System
Electric - Suzuki Start System
Oil Pan Capacity
8.5 (8.0) (L)
Standard Propeller
Optional
Piston Displacement
267.9 (4,390) (cc)
Propeller Selection
12"-31.5"
Fuel Delivery System
Multi Point Sequential Electronic Fuel Dual Injection with Lean Burn and Oxygen Sensor
Max Horse Power Output
300
features

POWER WITH PASSION

THE NEW DF300B

We are proud to introduce our NEW DF300B ꟷ an outboard that perfectly balances awesome power and thrust, with outstanding fuel-efficiency and trusted reliability all in a lightweight and stylish design.

Built for everyday use of larger boats, this market-leading new outboard has been engineered to run on 91 RON fuel and, is the world’s first four-stroke outboard of 300 horsepower with a dual propeller (Suzuki Internal Research).

This high-tech and innovative DF300B has been designed to be robust, easy to use and versatile, making it the ideal outboard for large boats whatever the task.

Whether you are using your boat for work or for leisure, wherever you are in the world, this new outboard is the ultimate choice.

Suzuki DF300B Black

DEVELOPMENT OF SUZUKI'S FIRST CONTRA-ROTATING PROPELLER

Our engineers know that the shape of the lower unit and the design of the propeller have a critical impact on performance. The innovative contra-rotating propeller design provides more grip underwater, and because contra-rotating propellers distribute the engine’s torque evenly over two propellers, the torque per propeller decreases and gear diameter can be reduced. A reduction in gear diameter has allowed the design of a smaller, and far more hydrodynamic gear case.

Suzuki DF300B Black GEAR CASE DESIGN

At high speeds cavitation can cause significant losses in speed and grip. The New DF300B overcomes this with a highly advanced gear case design. Computational fluid dynamics (CFD) and countless test drives, have resulted in a breakthrough design that not only minimises resistance but also provides a highly efficient flow of water to the propellers.

Suzuki DF300B Black

DIRECT INTAKE SYSTEM AND DUAL LOUVER SYSTEM FOR COOL AND DRY AIR

Achieving a flow of cooler, drier air directly into the engine is made possible by the unique combination of the Direct Intake System and the Dual Louver System. This revolutionary approach ensures a direct flow of air whilst eliminating water intake, even in the face of the most severe on-water testing.

The Dual Louver System incorporates a double shield of blades, each one designed in a dog-leg shape. This system helps remove water from the air and prevents water to be taken into the cowl. As a result, intake air is free of moisture and kept close to ambient temperature.

Suzuki DF300B Black

DUAL INJECTORS FOR BOTH COOLING AND POWER

Injecting fuel achieves two things, it atomises the fuel and it cools the cylinder.

To provide the power and cooling needed, the fuel must be completely injected at precisely the right time and angle. The all-new Dual Injector System uses two smaller injectors giving immense precision, improved atomisation and increased fuel efficiency.

Suzuki DF300B Black

PROPELLER BLADE DESIGN

The new three-blade/three-blade propeller set up has been developed that provides incredible acceleration and increased performance. In testing, this configuration recorded the highest speeds, even under heavy load and at high rotation speeds.

The propeller blade geometry has also been optimised to work in the configuration resulting in incredible grip and acceleration across the range.

An added benefit is exceptional stability, achieved because each propeller rotates in a different direction, balancing the turn.

Suzuki DF300B Black

DUAL WATER INLET

Dual water inlet is a technology developed to cool the engine with minimal friction loss, using a combination of a small water pump and dynamic water pressure.

Conventional outboards have water inlets on the side of the strut of the gear case. However, at very high speed, the water pressure at the strut surface is reduced, making it difficult to maintain stable water suction. The DF300B has water inlets on the tip of the gear case, which helps with water suction even when there is dynamic pressure caused by the movement of the gear case through the water.

Suzuki DF300B Black

HIGH REVERSE THRUST

With six blades rotating, the contra-rotating propeller produces a strong reverse thrust. The materials of the new DF300B gears are ultra-strong to withstand high loads and feature special heat treatment to give additional strength and reliability.

THE COMPRESSION RATIO

The ultimate Suzuki outboard is always aiming to be lighter and more powerful. The new DF300B features our proven 4.4 litre displacement block giving tremendous torque and making it the largest displacement V6 on the market today. Plus, with a compression ratio of 10.5:1 the DF300B also delivers impressive fuel economy and reliability.

Suzuki DF300B Black ATTENTION TO DETAIL – TECHNOLOGICALLY ADVANCED PISTONS

With the higher compression ratio, more is being asked of the piston than ever before. Not only does the surface have to withstand greater forces, but the connecting rod and hardware do too. To help the piston withstand the added lateral pressure, the change to shot peening from the standard surface treatment was conducted. Shot peening creates fine dimples on the surface that evenly distribute the pressure created during combustion. We are proud to say that we were able to create a piston worthy of the “ULTIMATE” title.

Suzuki DF300B Black

SUZUKI COMBINES HUGE POWER AND MAXIMUM EFFICIENCY

Our engineers set out to build a compact, lightweight outboard that combines the high power required, alongside the operating efficiencies that cannot be achieved by using technologies such as turbocharging or supercharging. Additionally, they set the goal of making the DF300B run on low octane, 91 RON fuel, which combined with legendary Suzuki reliability makes the outboard ideally suited for a wide variety of large boats around the world.

The traditional single propeller design creates forward thrust, but also produces a significant amount of rotational energy. Our engineers have captured this wasted energy and turned it into productive power by utilising our revolutionary dual-propeller technology.

They have solved the problem of the disruption of the water flow, caused by the larger gear case, typically needed by higher power engines.

Years of research and innovation have gone into developing the technologies that significantly improve the way an outboard converts engine power into underwater thrust.

The result is a revolution in innovation. We call it ‘GEKI’.