DF350AMD / DF300BMD

Enough Clearance in the Motorwell

For some of the boat types, the external cylinder could interfere with the motorwell. With this new system, there are no issues with hitting.

The system also enables rigging to various types of boats.

Simple Appearance

The steering cylinder is integrated in the middle unit, resulting in a simplier appearance of the motorwell and a clean finish.

Lowered Gear Oil Temperature

To improve reliability, the circulation of the gear oil has been improved, which suppresses the temperature rise of the gear oil.

Faster Top Speed

The newly designed gear case has reduced 4% of the frontal projected area, which increased the Top Speed by more than 2%*.

*The data is based on “In-House Suzuki Testing” under uniformed conditions. Results will vary depending upon operating conditions (boat design, size, weight, weather, etc).

New Mechanism for Changing Gear Oil

By adding a special oil passage, the gear oil can be changed without lifting the vessel if you have an oil changer.

Improved Fuel Efficiency

Since the gear case has reduced 4% of the frontal projected area, water resistance has decreased. This contributes to the better fuel efficiency.

*The data is based on “In-House Suzuki Testing” under uniformed conditions. Results will vary depending upon operating conditions (boat design, size, weight, weather, etc).

Compatible with Conventional Models

Lower unit including the advanced gear case is compatible with conventional DF350A/325A/300B. It is also installed as standard equipment for all GEKI models.

Reduced Gear Oil

You can save your money for gear oil with more efficient oil circulation, which achieved the reduction of gear oil from 3.2l to 2.8l.

Dual Louver

The DF350AMD/DF300BMD are equipped with a dog-leg shaped Dual Louver at the air intake to remove water from the air taken into the cowl. Incorporating a direct intake system makes the compression ratio of 12.0:1 (DF350AMD), 10.5:1(DF300BMD) possible, ultimately leading to a higher engine output.

Dual Prop

The Dual Prop system efficiently turns engine's output into propulsion under water.

As an added benefit, because each propeller rotates in a different direction, exceptional stability is achieved. In addition, the contra-rotating propellers produce a strong reverse thrust.

Dual Injector

Efficient combustion and suppression of knocking are necessary to produce more power.

Suzuki achieved efficient combustion with optimal fuel injection by adopting the Dual Injector and with optimum combustion chamber configuration.
Further, the Dual Injector atomizes the fuel to enhance the cooling action in the combustion chamber and suppress knocking.

In fact, Suzuki has succeeded in increasing the output by 3%.

Dual Water Inlet

Designing the shape of the gear case also required repositioning the water intakes. It was important to arrange the main and sub intakes as far apart from each other as possible, and to design them to ensure a reliable amount of cooling water, especially at high speeds.