⚓ Genuine Provider: Specialist in Mercury Portable Propulsion.
Supplying authentic Mercury EFI technology with specialized technical support for premium portable boating.
The Mercury 9.9hp EFI (9.9MH) represents the pinnacle of portable outboard performance. Featuring a Battery-Free Electronic Fuel Injection system, this engine delivers instant, reliable manual starts and superior fuel economy without the weight of a cranking battery. With its 333cc twin-cylinder design and 15-inch short shaft, it is the ideal power choice for inflatable boats, small aluminum fishing boats, and tenders.
Technical Specifications
| Brand |
Mercury Marine |
| Model Type |
FourStroke EFI (Portable) |
| MPN |
9.9MH |
| Shaft Length |
15 Inches (Short Shaft) |
| Starting System |
Manual Start (Battery-Free EFI) |
| Dry Weight |
Approx. 95 lbs (43 kg) |
In The Box
- 1x Mercury 9.9hp EFI 15" Outboard Motor
- 1x External Fuel Tank (3.2 Gallon / 12 Liter)
- 1x Fuel Hose with Primer Bulb
- 1x Standard Aluminum Propeller
- 1x Emergency Stop Lanyard
- 1x Owner’s Manual & Basic Tool Kit
Frequently Asked Questions
1. Is a battery needed to run this EFI engine?
No. The "Battery-Free" EFI system generates its own power during the manual pull to operate the fuel injectors and electronic controls, making it lighter and more reliable.
2. Can I transport this motor on its side?
Yes. Like most Mercury 4-strokes, it can be laid on its specific side (tiller handle side down) for transport without oil leaking into the cylinders.
