Mercury / FourStroke
Mercury FourStroke 9.9hp EFI
Mercury FourStroke outboards are made to unlock the inaccessible.
All Mercury outboards

FourStroke
FourStroke 9.9hp EFI
- Power
- 9.9 hp
- Configuration
- Inline-2
- Displacement
- 209cc
- Weight
- 85 lb
Authorized
dealer
View on Mercury site About this engine
Mercury FourStroke outboards are made to unlock the inaccessible. To make light work of long journeys. The 2.5 to 20hp FourStroke outboards empower you to enjoy the water on your terms and reach places you wouldn’t dare venture with other engines. They’re reliable, compact, lightweight, easy to install and simple to operate, while still delivering quick acceleration and impressive speed. The only thing missing is a destination.
Key features
- You’re One Step Closer to Adventure
- Electronic Fuel Injection (EFI)
- Advanced Tiller
- Battery-Free EFI
- Easy Portability
- Convenient Maintenance
- FourStroke Performance
- Flexible, Versatile Power
- Small but Mighty
- Lighter by Design
- FourStroke Advantage
- Comfort
- Durability
- Compact Design
- Efficiency
- Warranty & Maintenance
- Warranty Coverage
- Mercury Product Protection
- Brochures
- Sign up for the Mercury Dockline Newsletter for news, promotions and more
Full specifications
- Horsepower
- 9.9
- Alternator amp / Watt
- 12 amp (145 watt) electric
- Smartcraft Compatible
- No
- Displacement (CID/CC)
- 12.8 cu in (209cc)
- Dry weight *Lightest model available
- 85 lbs / 38.5 kg; 100 lbs/45.5 kg (CT Model)
- Engine type
- Inline-2
- HP / kW
- 9.9/7.4
- Remote fuel tank standard (gal / L)
- 3.2Gal /12L
- Starting
- Manual
- Trim system
- Manual



























