In Stock
2018 Mercury 9.9 Hp 9.9EH Outboard Motor
- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
Mercury built this 2018 9.9EH (SKU 9.9EH-18) to stay light and compact: a twin-cylinder, 9.9 HP four-stroke on the short shaft, with electric starting and tiller control.
Designed to be portable
That portability suits small pontoons, skiffs, and jon boats as a primary motor, or sailboats and trolling setups relying on it as auxiliary power. Auto-ratchet hardware handles tilt adjustment at the tiller, which also combines shifting, throttle, and steering in one grip.
Specifications to confirm
Charging runs through a 76-watt alternator on this electric-start build. Gearcase ratio sits at 2.08:1. Mercury covers it for saltwater use, with the standard factory term protecting three years of ownership. A snug-fitting cover reduces cowl fading on a motor stored outside between outings.
Q: Does this motor include an internal battery? No, there is no internal battery with this model.
Q: What size boats is this meant for? Small pontoons, skiffs, and jon boats, either as primary power or auxiliary backup.
Q: Does the tiller combine throttle and steering? Yes, one tiller handle covers shifting, throttle, and steering together on this build.
Q: Does this one carry a saltwater rating? Yes, saltwater running is covered under Mercury's rating for this motor.
Q: Is there a backup way to start it? Yes, a thru-cowl manual option backs up the electric starter here.
See other Mercury outboards near this horsepower.
Specifications
| MODEL | 9.9EH |
| MODEL YEAR | 2018 |
| SKU | 9.9EH-18 |
| WEIGHT | 91.0000 |
| MANUFACTURER | Mercury |
| COUNTRY OF MANUFACTURE | Japan |
| HORSEPOWER | 9.9hp |
| SHAFT LENGTH | 15″ (Short) |
| STEERING | Tiller |
| STARTING | Electric |
| TRIM & TILT | Manual |
| FUEL DELIVERY | Carburetor |
| FUEL TANK | External |
| CYLINDER(S) | 2 |
| DISPLACEMENT | 208 cc (12.8 cubic inches) |
| BORE AND STROKE | 55 x 44 mm (2.16 x 1.73 inches) |
| FULL THROTTLE RPM RANGE | 5000-6000 |
| IGNITION SYSTEM | Digital CD Ignition w/Electronic Spark Advance |
| INDUCTION SCAVENGING | SOHC |
| VALVES PER CYLINDER | 2 |
| FUEL TYPE | 87 Octane (up to 10% ethanol content) |
| FUEL TANK / FUEL LINE | 3.2 Gal. Fuel Tank + Quick Connect Fuel Line |
| OIL TYPE | SAE 10W-30 (Mercury 4-Stroke Outboard Oil) |
| OIL CAPACITY | 27 fl. Oz. (800 ml) |
| LUBRICATION | Trochoid Pump |
| ALTERNATOR | 12V 76W 6A (standard on electric start models) |
| COOLING SYSTEM | Water-Cooled, Thermostatically Controlled |
| SALTWATER RATED | YES |
| GEAR RATIO | 2.08:1 |
| GEAR SHIFT | Forward-Neutral-Reverse (shift in tiller handle) |
| PROPELLER | 8.5″ Diameter X 9.0″ Pitch 3-Blade Aluminum |
| INTERNAL BATTERY | No |
Startup & Installation Checklist
- Inspect all external gaskets, seals, spark plugs and timing components prior to installation.
- Refill engine oil, transmission gear oil and coolant to manufacturer-specified capacities before initial cranking.
- Prime the lubrication system and verify ECU wiring pinouts, sensors, and ground connections.
- Startup warranty covers internal lubricated components, cylinder heads, and engine block for 30 days from delivery.
Full terms: 30-day startup warranty · returns