2025 Mercury Marine® FourStroke 9.9 hp Base
- Year 2025
- Make Mercury Marine®
- Model FourStroke 9.9 hp
2025 Mercury Marine® FourStroke 9.9 hp Base
2025 Mercury Marine® FourStroke 9.9 hp
Output far beyond its sizePut amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best.
Built to deliver the type of power, thrust, and control that wider, heavier boats require. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
Engine
Engine Power
9.9 hp (7.3 kW)
Engine Type
Inline 2
Displacement
12.8 CID (208 CC)
Throttle
Full: 5000-6000 RPM
Oil Type
Recommended: Mercury FourStroke Oil 10W-30
Gear Ratio (Primary)
2.08:1 | Shift: F-N-R
Emissions
CARB star rating: 3
Bore
2.16" (55 mm)
Stroke
1.73" (44 mm)
Ignition
CDI w/electronic spark advance
Cooling
Water-cooled with thermostat
Steering
Remote | Tiller
Exhaust
Through prop
Operational
Operating Conditions
Shallow water trim range: 16°
Electric
Alternator
Electric: 6 amp ( 76 watt)
Starter
Electric | Manual
Fuel System
Fuel System
Carbureted | Induction: 2 valves per cylinder, single overhead cam (SOHC)
Fuel Type
Recommended: 87 octane / up to 10% ethanol
Dimensions
Length
Shaft: 15" (381 mm) | 20" (508 mm)
Capacities
Fuel Capacity
Remote tank standard: 3.2 gal (12 L)
Weights
Dry Weight
Lightest model available: 84 lbs (38 kg)
Features
Features
Engine protection operator warning system: Low oil pressure/Over-rev | Trim positions: Ratcheting | Shallow water drive: Yes
Color
Colors
Phantom Black