Battery-Free EFI
Electronic fuel injection precisely meters fuel and allows manual-start operation without a battery.
MERCURY FOURSTROKE
Mercury 9.9HP
Model 9.9MH
Delivers capable FourStroke power with manual start, tiller control and a short shaft.
9.9HP · FourStroke · Short shaft
from
$3,599
NZD. Final fitted price depends on the boat, controls, steering and installation requirements.
9.9HP
POWER
209 cc
DISPLACEMENT
38.5 kg
DRY WEIGHT*
381 mm
SHAFT LENGTH
6 Years
WARRANTY*
MERCURY WARRANTY
6 YEARS*
3+3 YEAR COVERAGEMore confidence on the water.
Eligible recreational Mercury outboards receive a three-year standard manufacturer warranty plus three additional years of bonus coverage when the required registration and scheduled servicing conditions are met.
View warranty terms *Terms, eligibility and servicing requirements apply. Commercial, SeaPro and Mercury Racing warranty coverage may differ.FEATURES AND BENEFITS
Modern EFI performance in a portable package.
Battery-free EFI, strong low-speed charging and a multi-function tiller combine easy ownership with capable performance.
Strong Charging Output
Electric-start models provide a 12 amp, 145 watt marine charging system.
Improved Fuel Economy
The EFI platform is designed to reduce fuel use compared with the previous platform.
Ratcheting Manual Tilt
Six trim positions and a full-tilt lock simplify shallow-water operation and trailering.
Multi-Function Tiller
Throttle, shifting, stopping and friction adjustment are grouped for confident one-hand control.
Corrosion Resistance
Marine alloys and protective coatings support long-term durability.
TECHNICAL DETAILS
Full specifications
| HP / kW at prop | 9.9 / 7.4 |
|---|---|
| Max RPM (WOT) | 5000 - 6000 |
| Cylinders / Configuration | Inline 2 |
| Displacement | 209 cc |
| Bore x Stroke | 55 x 44 mm |
| Induction System | 2 valves per cylinder, SOHC |
| Ignition | CDI with electronic spark advance |
| Fuel System | Electronic Fuel Injection (EFI) |
| Alternator Amp/Watt | 12 amp / 145 watt (electric-start model) |
| Starting | Manual or electric with manual backup |
| Gear Ratio | 2.08:1 |
| Gear Shift | F-N-R |
| Controls | Mechanical |
| Steering | Tiller or remote |
| Engine Protection | Low oil pressure, over-rev, overheat |
| Fuel | 90 RON; up to 10% ethanol |
| Dry Weight | 38.5 kg |
| Remote Fuel Tank | 12 L |
| Trim System | Six-position ratcheting trim with shallow-water drive |
| Propeller | 216 mm pitch, included |
| Shaft Length | 381 mm |
BOAT MATCHING
Is the Mercury 9.9HP right for your boat?
Horsepower is only one part of choosing an outboard. Hull design, weight, transom height, steering, controls and intended use all affect the correct installation.
REPOWER WITH CONFIDENCE