2018 Mercury 8EH 8HP 4-Stroke Outboard Motor

The 2018 Mercury 8EH 8HP Outboard Motor is engineered to provide dependable performance, quiet operation, and excellent fuel efficiency for small boats and recreational marine applications. Compact and lightweight at only 91 pounds, this outboard is easy to transport, install, and operate.

Powered by a two-cylinder 4-stroke engine, the Mercury 8HP delivers smooth and efficient power while maintaining low fuel consumption. Whether you’re navigating calm lakes, coastal waters, or rivers, this engine provides reliable performance for fishing boats, inflatable tenders, skiffs, and jon boats.

The multi-function tiller handle allows one-handed operation of throttle and steering, making boat handling easier and more precise. The integrated Forward-Neutral-Reverse gear shifting within the tiller handle further simplifies control.

Mercury’s patented auto-ratchet trim system enables quick and easy adjustment of trim and tilt positions, allowing the engine to adapt to different water conditions. Additional features such as digital CDI ignition, thermostat-controlled cooling, and vibration-reducing mounts ensure consistent performance and smooth operation.

Built with high-grade marine alloy construction, stainless steel components, and zinc-coated water passages, the Mercury 8EH is designed to withstand harsh marine environments. It is fully saltwater-rated and protected by sacrificial zinc anodes to extend engine life.

With its electric start system, backup manual start, and 12-volt alternator, the Mercury 8EH provides convenience, reliability, and power for onboard electronics.

Backed by Mercury Marine’s 3-Year Factory Warranty, this outboard motor is an excellent choice for boaters looking for durability, efficiency, and trusted Mercury engineering.

Key Features

• Compact and lightweight 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 internal water passages

• Sacrificial zinc anodes for corrosion protection

• Start-in-gear safety protection

• Low oil pressure warning indicator

• ESG over-rev protection system

• Safety lanyard emergency stop switch

Motor Specifications

Model: 8EH
Model Year: 2018
Manufacturer: Mercury Marine
Country of Manufacture: Japan

Horsepower: 8 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 × 7.5″ 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 Warranty