2026 Mercury 4 HP 4MH Outboard Motor
$1,313.99
Mercury
Availability: In stock
$2,564.99
$2,564.99
In stock
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
| SKU | SC-2018-mercury-9-9-hp-9-9eh-outboard-motor |
|---|---|
| Brand | Mercury |
| Category | Mercury |
| Shipping | Included in the price, to 29 countries |
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