2017 Mercury 20 HP 20MH Outboard Motor

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2017 Mercury 20 HP 20MH Outboard Motor

Fast throttle response and fast acceleration are features designed into the 20 HP Mercury Outboard. With powerful low end torque and a large displacement your boat planes faster and you get to your destination across the water faster thanks to Mercury engineering. The Mercury 20 HP Model 20MH is your affordable choice in the 20 HP line up with a manual start and the short 15 inch shaft. The 20MH also includes manual tilt, a heavy duty transom bracket, vibration absorbing mounts and Mercury’s multi function tiller. Mercury outboards come with a 3 year factory warranty that starts on day of purchase.


2017 Mercury 20 HP 20MH Outboard Motor

  • Large Displacement Powerhead (351cc)
  • Thru-Cowl Backup Manual Start
  • Digital CD Ignition with Spark Advance
  • Tuned Intake for Quick Acceleration
  • High Grade Marine Alloy Construction
  • Stainless Steel Water Pump Housing
  • Zinc Coated Water Passages
  • Rated for Saltwater Use
  • Sacrificial Zinc Anodes and Trim Tab
  • Tiller Integrated F-N-R Gear Shifting
  • Adjustable Steering Tension Control
  • Twist-Grip Throttle with Tension Control
  • Thermostat Controlled Water Cooling
  • Heavy Duty Transom Mounting Bracket
  • Quiet Through-Propeller-Hub Exhaust
  • “Wishbone” Mount for Reduced Vibration
  • 6.6 Gallon Fuel Tank and Fuel Line
  • Easy Maintenance Canister Oil Filter
  • Start-In-Gear Protection
  • Low Oil Pressure Warning Indicator
  • ESG Over-Rev Protection
  • Safety Lanyard Stop Switch
  • Owner’s Manual
  • Mercury Marine 3-Year Warranty


2017 Mercury 20 HP 20MH Outboard Motor

Model Year2017
Country of ManufactureJapan
Shaft Length15″ (Short)
Trim & TiltManual
Fuel DeliveryCarburetor
Fuel TankExternal
Displacement21.4 / 351
Bore and Stroke2.40 x 2.36in
Full Throttle RPM Range5400-6100
Ignition SystemCDI w/electronic spark advance
Induction ScavengingSOHC
Valves per Cylinder2
Fuel Type87 octane/up to 10% ethanol
Fuel Tank / Fuel Line6.6 / 25
Oil TypeMercury 4-Stroke Outboard Oil
Oil Capacity1 Quart (1000 ml)
LubricationTrochoid Pump
AlternatorOptional 12 amp / 138 watt (Electric)
Cooling SystemWater-cooled with thermostat
Saltwater RatedYES
Gear Ratio2.15
Gear ShiftForward-Neutral-Reverse
Propeller9.2″ Diameter X 9.1″ Pitch 3-Blade Aluminum
Internal BatteryNo


2017 Mercury 20 HP 20MH Outboard Motor

What’s in the box?

  • Fuel Tank (6.6 gallon)
  • Quick Connect Fuel Line
  • Mercury 3-Year Warranty
  • Aluminum Propeller
  • Mercury 4-Stroke Oil
  • Owner’s Manual & Tool Kit

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