The Suzuki DF25AES5 is a 25 HP EFI outboard designed for boaters who need lightweight performance with the convenience of electric starting. At 143 lbs, this short shaft, tiller-steer motor is easy to handle while still delivering strong, efficient power from its 3-cylinder SOHC 4-valve design.
With electric start and manual trim & tilt, the DF25AES5 strikes a balance between simplicity and modern convenience. It includes a 12V 145W alternator for powering accessories, along with Suzuki’s EFI system for smooth running and improved fuel efficiency. Saltwater-rated with advanced anti-corrosion protection, it’s ideal for skiffs, fishing boats, and utility craft where reliability and control matter most.

Suzuki DF25AES5 Specifications
| MODEL | DF25 AES5 |
| WEIGHT | 143.0 lb |
| MANUFACTURER | Suzuki |
| COUNTRY OF MANUFACTURE | Thailand |
| HORSEPOWER | 25 HP |
| SHAFT LENGTH | 15" (Short) |
| STEERING | Tiller |
| STARTING | Electric |
| TRIM & TILT | Manual |
| FUEL DELIVERY | EFI |
| FUEL TANK | External |
| CYLINDER(S) | 3 |
| DISPLACEMENT | 29.8 cu in (489 cc) |
| BORE & STROKE | 2.80 x 2.68 in |
| RPM RANGE | 5000 – 6000 RPM |
| IGNITION SYSTEM | Digital CDI |
| INDUCTION SCAVENGING | SOHC |
| VALVES PER CYLINDER | 4 |
| FUEL TYPE | Unleaded Gasoline (87 octane) |
| OIL TYPE | SAE 10W-30 or SAE 10W-40 |
| OIL CAPACITY | 1.6 qt (1.5 L) |
| LUBRICATION | Wet Sump; Trochoid Type Cam-Driven Oil Pump |
| ALTERNATOR | 12V 145W 12A |
| COOLING SYSTEM | Water-Cooled |
| SALTWATER RATED | Yes |
| GEAR RATIO | 2.09:1 |
| GEAR SHIFT | Forward-Neutral-Reverse (front-mounted lever) |
| PROPELLER | 3-Blade Aluminum 10.25" Dia. x 11" Pitch |
| INTERNAL BATTERY | No |
Engine Specifications
| Horsepower | 25 HP |
|---|---|
| Cylinders | 3 |
| Shaft Length | 15" |
| Weight | 143.0 lb |
| Steering | Tiller |
| Throttle & Shift Control | Mechanical |
| Trim & Tilt | Manual |
| Starting | Electric |
| Fuel Delivery | Electronic Fuel Injection |