Description
HORSEPOWER : 25hp
WEIGHT : 157.0 lb
SHAFT LENGTH : 15″ (Short)
STARTING : Manual
FUEL DELIVERY : EFI
STEERING : Tiller
FEATURES
- Utilizes a three-cylinder engine design, delivering superior balance performance over twin-cylinder designs
- Compact and powerful
- Offers extra displacement and great low-end torque, putting the boat smartly on plane
- Electronic fuel injection delivers easy-starting, crisp throttle response and increased fuel economy
- Engine protection operator warning system including: low oil pressure, over-rev, overheat and sensor failure
- Mercury 3 year warranty
- PROPELLER NOT INCLUDED
SPECIFICATIONS
| MODEL | 1A25203BK |
|---|---|
| MODEL YEAR | 2026 |
| SKU | 25MH-26EFI |
| MANUFACTURER | Mercury |
| COUNTRY OF MANUFACTURE | Japan |
| HORSEPOWER | 25hp |
| WEIGHT | 157.0 |
| SHAFT LENGTH | 15″ (Short) |
| STEERING | Tiller |
| STARTING | Manual |
| TRIM & TILT | Manual |
| FUEL DELIVERY | EFI |
| FUEL TANK | External |
| CYLINDER(S) | 3 |
| DISPLACEMENT | 526 Cubic Centimeter |
| BORE AND STROKE | 2.40 x 2.36 in. (61 x 60 mm) |
| FULL THROTTLE RPM RANGE | 5,000 – 6,000 |
| IGNITION SYSTEM | CDI with electronic spark advance |
| INDUCTION SCAVENGING | SOHC |
| VALVES PER CYLINDER | 2 |
| FUEL TYPE | Unleaded Gasoline (87 octane) |
| OIL TYPE | Mercury 4-Stroke Outboard Oil |
| ALTERNATOR | None |
| COOLING SYSTEM | Water-cooled with thermostat |
| SALTWATER RATED | Yes |
| GEAR RATIO | 1.92:1 |
| GEAR SHIFT | F-N-R Gearcase options – Standard |
| PROPELLER | Not included |
| INTERNAL BATTERY | No |
IN THE BOX
- Fuel Tank (6.6 gallon)
- Quick Connect Fuel Line
- Mercury 3-Year Warranty
- Mercury 4-Stroke Oil
- Owner’s Manual & Tool Kit
- PROPELLER NOT INCLUDED
SHAFT LENGTH GUIDELINES








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