DF150A 150HP
One of the Lightest Four-Strokes in the 150 HP Class
The Suzuki DF150A is a 2867 cc in-line four-cylinder four-stroke outboard rated at 150 hp across a 5000-6000 rpm full-throttle operating range, the entry point to Suzuki's large-displacement Inline 4 block, which runs 150 to 200 hp. Suzuki builds it around the large-displacement DOHC 16-valve powerhead, Suzuki Lean Burn Control, Variable Valve Timing, a Multi-Stage Induction System, the offset drive shaft and a user-adjustable Tilt Limit System.
Powerful and efficient. The DF150A is built around a 2867 cc in-line four-cylinder DOHC powerhead, one of the largest-displacement blocks in its class, and Suzuki targeted it to be one of the lightest four-strokes at its output rather than the heaviest. Variable Valve Timing and a Multi-Stage Induction System work together across the DF150A's full rpm range, and Suzuki's Lean Burn Control System leans the fuel mixture from low speed up into the cruising range for better fuel economy.
Easy to live with. Suzuki positions the crankshaft ahead of the drive shaft, moving the outboard's center of gravity forward for a more compact package and reduced vibration, and multi-point sequential electronic fuel injection keeps starting and throttle response consistent across conditions. A user-adjustable Tilt Limit System protects the boat and the motor by preventing the outboard from tilting past a set point. Every DF150A is available with mechanical or digital shift and throttle.
Built for saltwater. Suzuki's Anti-Corrosion System applies a specially formulated finish directly to the outboard's aluminum surface, which allows maximum bonding and helps protect the parts that are constantly exposed to saltwater. The DF150A is offered in Pearl Nebular Black or Cool White.
- One of the lightest four-strokes in its class despite a large-displacement DOHC powerhead
- Variable Valve Timing and a Multi-Stage Induction System across the full rpm range
- Suzuki Lean Burn Control System for economy from low speed into the cruising range
- Crankshaft positioned ahead of the drive shaft for a more compact, lower-vibration package
- User-adjustable Tilt Limit System
- Mechanical or digital shift and throttle
- Electric start and power trim and tilt standard, 511 lb dry weight
Rigging. The DF150A is rigged to order, remote control only, in Pearl Nebular Black or Cool White, with a choice of mechanical or digital shift and throttle and a 20 in or 25 in transom. Every DF150A has electric start and power trim and tilt as standard. Contact your Mastry dealer for the right rigging for your transom.
| Specification | Value |
|---|---|
| Maximum output | 150 hp |
| Full-throttle operating range | 5000-6000 rpm |
| Configuration | 4-cylinder in-line, 4-stroke, DOHC 16-valve |
| Valve train drive | Chain |
| Displacement | 175.0 cu. in / 2867 cc |
| Bore x stroke | 3.81 in x 3.81 in / 97 mm x 97 mm |
| Fuel system | Multi-point sequential electronic fuel injection |
| Recommended fuel | 87 octane |
| Ignition system | Solid state direct ignition |
| Starting system | Electric |
| Alternator | 12 V, 44 A |
| Oil pan capacity | 8.5 qt / 8.0 L |
| Dry weight | 511 lb (20 in shaft) or 522 lb (25 in shaft) |
| Recommended transom height | 20 in or 25 in |
| Engine mounting | Shear mount |
| Trim method | Power trim and tilt |
| Gear ratio | 2.50:1 |
| Gear shift | F-N-R |
| Exhaust | Through prop hub |
| Propeller selection | 17 in to 19 in pitch |
| Steering and controls | Remote mechanical or digital control |
| Body color | Pearl Nebular Black or Cool White |
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| New outboard(s) | |||
| New rigging tube and connections | |||
| New propeller | |||
| Water separator / fuel filter | |||
| Engine oil | |||
| Miscellaneous rigging supplies | |||
| New controls | |||
| New harness | |||
| New standard gauges | |||
| New steering | |||
| New upgraded gauges | |||
| New battery switch |








