Mercury 9.9 HP EFI 2025: America’s Favorite Class, Injected
The 2025 Mercury 9.9 HP EFI FourStroke continues its modern advantage: EFI starting in any weather on a smooth 208cc twin, with the multi-function tiller, F-N-R gearing, manual or electric start, no-spill oil change, and maintenance-free valve train. The forward-looking pick of the 9.9HP outboard class.
Key Features (2025)
- EFI — surefire starting, crisp response
- 208cc twin
- Multi-function tiller; F-N-R
- Low-maintenance design
Specifications
- Engine: 2-cylinder four stroke, 208cc
- Horsepower: 9.9 HP
- Fuel Induction: EFI
- Starting: Manual or Electric
- Gearshift: Forward-Neutral-Reverse
- Steering: Tiller
- Fuel: External tank, 87 octane
- Shaft: 15″ (S) / 20″ (L)
Benefits & Applications
For 14–16 ft aluminum boats, kickers, tenders, and restricted lakes. Rivals: Suzuki DF9.9B 2025, Honda BF10 2025. Step up: Mercury 15 HP EFI 2025.
Compare Model Years
See the 9.9 HP EFI 2024 and 9.9 HP EFI 2026, all Mercury Outboards, or the Mercury brand guide.
Frequently Asked Questions
What does the 2025 model cost?
$2,990, in stock.
Is it good as a kicker?
Excellent — EFI starts instantly for trolling sessions and the twin runs smoothly at low rpm.
Start options?
Manual or electric.


