2018 Mercury 9.9EH 9.9HP 4-Stroke Outboard Motor

The 2018 Mercury 9.9EH 9.9HP Outboard Motor is engineered for reliability, portability, and efficient performance. Compact and lightweight at only 91 lbs, this portable outboard motor is ideal for a wide range of small watercraft including jon boats, skiffs, dinghies, inflatable boats, small pontoons, and sailboats.

Powered by a two-cylinder four-stroke engine, the Mercury 9.9HP delivers smooth and quiet operation with excellent fuel economy. Its advanced engineering ensures dependable performance whether you’re cruising lakes, navigating rivers, or using the engine for trolling.

The multi-function tiller handle allows convenient one-hand operation of steering, throttle, and gear shifting. Integrated Forward-Neutral-Reverse shifting within the tiller provides simple and precise control while operating the boat.

The engine also features Mercury’s patented auto-ratchet trim system, which allows easy adjustment of trim and tilt positions for optimal performance in varying water conditions. A thermostat-controlled cooling system helps maintain ideal engine temperature, while vibration-reducing mounts ensure smoother and quieter operation.

Built with high-grade marine alloy construction, stainless steel components, and zinc-coated internal water passages, this outboard is fully saltwater-rated and designed to withstand harsh marine environments. Sacrificial zinc anodes provide additional protection against corrosion.

With electric start capability, a backup manual start system, and a 12-volt alternator, the Mercury 9.9EH provides reliable power and convenient starting every time.

Backed by Mercury Marine’s 3-Year Factory Warranty, this engine is a dependable choice for anglers, recreational boaters, and marine professionals.

Key Features

• Compact and lightweight portable design (91 lbs)

• Electric start with backup manual start

• 12V 76W 6A alternator for charging electronics

• Two-cylinder smooth 4-stroke engine

• Digital CDI ignition with electronic spark advance

• Multi-function tiller handle with integrated controls

• Forward-Neutral-Reverse gear shifting in tiller handle

• Adjustable steering tension control

• Twist-grip throttle with tension adjustment

• Thermostat-controlled water cooling system

• Auto-ratchet trim system with 5 tilt positions

• Shallow water drive capability

• Quiet through-propeller hub exhaust

• High-grade marine alloy construction

• Stainless steel water pump housing

• Zinc-coated water passages

• Sacrificial zinc anodes and trim tab

• Start-in-gear safety protection

• Low oil pressure warning indicator

• ESG over-rev protection system

• Safety lanyard emergency stop switch

Motor Specifications

Model: 9.9EH
Model Year: 2018
Manufacturer: Mercury Marine
Country of Manufacture: Japan

Horsepower: 9.9 HP
Engine Type: 4-Stroke
Cylinders: 2

Shaft Length: 15″ Short
Steering: Tiller
Starting System: Electric Start
Trim & Tilt: Manual

Fuel Delivery: Carburetor
Fuel Tank: External

Displacement: 208 cc (12.8 cu in)
Bore x Stroke: 55 × 44 mm (2.16 × 1.73 in)

Full Throttle RPM Range: 5000 – 6000 RPM

Ignition System: Digital CDI with electronic spark advance

Fuel Type: 87 Octane (up to 10% ethanol)

Fuel Tank Capacity: 3.2 gallons

Cooling System: Water-cooled with thermostat

Gear Ratio: 2.08:1

Gear Shift: Forward – Neutral – Reverse

Propeller:
3-Blade Aluminum
8.5″ Diameter × 9.0″ Pitch

Weight: 91 lbs

Oil Type: Mercury 4-Stroke Outboard Oil (SAE 10W-30)

Oil Capacity: 27 fl oz (800 ml)

Alternator Output: 12V 76W 6A

Saltwater Rated: Yes

What’s Included in the Box

• 3.2 Gallon Fuel Tank

• Quick-Connect Fuel Line

• Aluminum Propeller

• Mercury 4-Stroke Engine Oil

• Owner’s Manual

• Tool Kit

• Mercury Marine 3-Year Factory Warranty