Current Mercury Marine® Engines Outboard FourStroke 20 EFI FourStroke 20 EFI

2025 Mercury Marine® FourStroke 20 EFI Base

2025 Mercury Marine® FourStroke 20 EFI Base

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  • Year 2025
  • Make Mercury Marine®
  • Model FourStroke 20 EFI
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Product Details Specifications Photos
2025 Mercury Marine® FourStroke 20 EFI Base

2025 Mercury Marine® FourStroke 20 EFI Base

  • Year 2025
  • Manufacturer Mercury Marine®
  • Model Name FourStroke 20 EFI
  • Trim Name Base
  • Generic Type (Primary) Four Stroke
  • Engine Power 20 HP (14.7 KW)
  • Engine Type Inline 2
  • Displacement 20.3 CID (333 CC)
  • Throttle Full: 5700 - 6200 RPM
  • Oil Type Recommended: 25W-40 Synthetic Blend / Mercury FC-W 10W-30 4-Stroke Marine Oil
  • Gear Ratio (Primary) 2.15:1 | Shift: F-N-R
  • Emissions CARB star rating: 3
  • Bore 2.40" (61 mm)
  • Stroke 2.24" (57 mm)
  • Ignition CDI w/electronic spark advance
  • Cooling Water-cooled with thermostat
  • Steering Remote | Tiller
  • Exhaust Through prop

2025 Mercury Marine® FourStroke 20 EFI

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.

Ultra-lightweight (just 99 pounds) and reliable, with little vibration. Innovative tiller lets you lock the tiller at 73 degrees – great for fishing and trailering. Perfect for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.

Engine

Engine Power 20 HP (14.7 KW)
Engine Type Inline 2
Displacement 20.3 CID (333 CC)
Throttle Full: 5700 - 6200 RPM
Oil Type Recommended: 25W-40 Synthetic Blend / Mercury FC-W 10W-30 4-Stroke Marine Oil
Gear Ratio (Primary) 2.15:1 | Shift: F-N-R
Emissions CARB star rating: 3
Bore 2.40" (61 mm)
Stroke 2.24" (57 mm)
Ignition CDI w/electronic spark advance
Cooling Water-cooled with thermostat
Steering Remote | Tiller
Exhaust Through prop

Operational

Operating Conditions Shallow water trim range: 16°

Electric

Alternator Electric: 12 amp (145 watt)
Starter Electric | Manual

Fuel System

Fuel System Induction: 2 valves per cylinder, single overhead cam (SOHC) | Electronic Fuel Injection (EFI)
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: 99 lbs (45 kg)

Features

Features Engine protection operator warning system: Low oil pressure/Low water pressure/Over-rev/Overheat/Sensor failure | Trim system: Manual/Power Tilt | Trim positions: 6 | Shallow water drive: Yes

Color

Colors Phantom Black

Product Photography