Current Mercury Marine® Engines Outboard FourStroke 8 hp FourStroke 8 hp

2025 Mercury Marine® FourStroke 8 hp Base

2025 Mercury Marine® FourStroke 8 hp Base

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  • Year 2025
  • Make Mercury Marine®
  • Model FourStroke 8 hp
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Product Details Specifications Photos
2025 Mercury Marine® FourStroke 8 hp Base

2025 Mercury Marine® FourStroke 8 hp Base

  • Year 2025
  • Manufacturer Mercury Marine®
  • Model Name FourStroke 8 hp
  • Trim Name Base
  • Generic Type (Primary) Four Stroke
  • Engine Power 8 hp (5.9 kW)
  • Engine Type Inline 2
  • Displacement 12.8 CID (208 CC)
  • Throttle Full: 5000-6000 RPM
  • Oil Type Recommended: Mercury FourStroke Oil 10W-30
  • Gear Ratio (Primary) 2.08:1 | Shift: F-N-R
  • Emissions CARB star rating: 3
  • Bore 2.16" (55 mm)
  • Stroke 1.73" (44 mm)
  • Ignition CDI w/electronic spark advance
  • Cooling Water-cooled with thermostat
  • Steering Tiller
  • Exhaust Through prop

2025 Mercury Marine® FourStroke 8 hp

Output far beyond its size

Put amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best.

Enhancements include simplified starting procedure, faster warmup, and better idle run quality. Lightweight: just 84 pounds. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.

Engine

Engine Power 8 hp (5.9 kW)
Engine Type Inline 2
Displacement 12.8 CID (208 CC)
Throttle Full: 5000-6000 RPM
Oil Type Recommended: Mercury FourStroke Oil 10W-30
Gear Ratio (Primary) 2.08:1 | Shift: F-N-R
Emissions CARB star rating: 3
Bore 2.16" (55 mm)
Stroke 1.73" (44 mm)
Ignition CDI w/electronic spark advance
Cooling Water-cooled with thermostat
Steering Tiller
Exhaust Through prop

Operational

Operating Conditions Shallow water trim range: 16°

Electric

Alternator Electric: 6 amp (76 watt)
Starter Electric | Manual

Fuel System

Fuel System Carbureted | Induction: 2 valves per cylinder, single overhead cam (SOHC)
Fuel Type Recommended: 87 octane / up to 10% ethanol

Dimensions

Length Shaft: 15" (381 mm) | 20" (508 mm)

Capacities

Fuel Capacity Remote tank standard: 3.2 gal (12 L)

Weights

Dry Weight Lightest model available: 84 lbs (38 kg)

Features

Features Engine protection operator warning system: Low oil pressure/Over-rev | Trim positions: Ratcheting | Shallow water drive: Yes

Color

Colors Phantom Black

Product Photography