Whether you’re boating for leisure or to make a living, our big-block range delivers the power and performance you demand. Suzuki’s latest DF150A & DF175A range is based on an inline four cylinder DOHC powerhead with a 2,867cm³ displacement. While the large displacement contributes greatly to producing exceptional acceleration and torque, it doesn’t mean that they are comparatively larger and heavier in size. On the contrary, Suzuki’s engineers have targeted this big block motor to be one of the lightest four strokes in their respective classes.

MORE POWER

With more torque (3.1% more for the DF150A and 2.7% more for the DF175A), as well as Suzuki’s proven offset driveshaft layout with 2-stage gear reduction, these new outboards generate more power throughout the full rpm range. Even on heavier, fully loaded boats, the DF150A and 175A take performance to the next level.

QUICK ACCELERATION

The DF150A and DF175A now share the same engine block used for our popular DF200A. Big displacement and precise mechanical design combine for quicker acceleration, whether out of the hole or in mid-range. We’re satisfying our customers’ desire for performance and improved fuel economy.

FEATURES

FUEL EFFICIENT

With a combination of our Lean Burn technology, a semi-direct intake system and a high performance compression ratio of 10.2-to-1, these new outboards deliver clean, efficient power. Compared to the previous generation, the DF175A is 14% more fuel efficient and the DF150A shows a 7% improvement for significant savings at the fuel dock.

ULTRA-RELIABLE

These new outboards take full advantage of Suzuki’s proven Ultimate 4-stroke technology to provide season after season of reliable performance. A knock sensor keeps the engine running smoothly for improved durability.
An O2 sensor improves engine efficiency and Suzuki’s water detecting system helps protect the engine from the effects of bad gas, which include poor combustion, lower power output and corrosion.

2-STAGE GEAR REDUCTION

This system which incorporates the Offset Driveshaft features a first stage reduction between the crankshaft and drive shaft and a second stage reduction inside the gear case. This design makes a larger gear ratio possible, allowing it to turn a large diameter propeller for high propulsive efficiency while providing greater torque.

ADVANTAGE

• High propulsive efficiency with large diameter propeller.
• Powerful navigation, maintaining propeller rotation even with a larger load.
• Power to turn large diameter propellers, offering quick acceleration.

OFFSET DRIVESHAFT

The engine powerhead is offset closer to the transom, moving the outboard’s centre of gravity forward.

ADVANTAGE

• Less vibration
• More compact engine
• Stable steering performance

MULTI-STAGE INDUCTION SYSTEM

Intake manifold pipes are switched between short and long ones during low speed and high speed operation to ensure the right volume of air enters the engine.

ADVANTAGE

• Increases output during high speed operation with greater volume of air input.
• Increases combustion efficiency and maximises torque by increasing the density in the air intake during low speed operation.

VVT (VARIABLE VALVE TIMING)

The Variable Valve Timing design is used to optimise the control of the opening and closing timing on the intake valve depending on the engine operation.

ADVANTAGE

• Offers smooth, powerful torque.
• Provides tremendous acceleration during operation at all speed ranges.

SEMI-DIRECT AIR INTAKE SYSTEM

This system brings cooler air directly into the multi-stage intake manifold, making it possible for the engine to operate more efficiently.

ADVANTAGE

• Greater acceleration and top-end speed.

O2 SENSOR FEEDBACK CONTROL SYSTEM

The system monitors engine operating conditions to provide input to the ECM allowing it to manage the fuel/air mixture.

ADVANTAGE

• Enables emissions to be clean and stable.
• Helps maintain optimum engine operating efficiency across the engine’s full operating range.

LEAN BURN

The Lean Burn Control System supplies the right fuel and air mixture depending on the navigation conditions.

ADVANTAGE

• Significant improvement in fuel economy in all speed ranges especially at cruising speed.
• Fuel use and expense are reduced thanks to improved fuel economy.

SUZUKI WATER DETECTING SYSTEM

Designed to help protect the engine from moisture in the fuel utilising a water detecting fuel filter to alert the operator with both visual and audio warnings when water is present in the fuel.

ADVANTAGE

• Protects engine from poor combustion, lower power output, and corrosion.

SUZUKI ANTI-CORROSION SYSTEM

Special protection is applied to the aluminium surface using high strength bonding to protect the aluminium made exterior parts.

ADVANTAGE

• Protection against corrosion helps increase the overall engine durability

SPECIFICATIONS