In Stock & Ready to Freight Outboard Motors Old stock

Mercury 20HP 20MH FourStroke Outboard

Brand: Mercury
Condition: New
Regular price $3,363.99 Save $841.00
Sale price $2,522.99
Sale price ends Mon Nov 30, 11:59 PM PT
Freight included, insured LTL to the continental US (rates)
$2,522.99 delivered to the continental US
  • Palletized and heavy shrink-wrapped for freight
  • LTL carrier delivery with optional liftgate service
  • Ships in 1–2 business days from Los Angeles, CA
  • Transit typically 3–14 business days, continental US
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Details & Inspection Notes

The 20HP 20MH FourStroke is a new two-cylinder outboard with manual starting rather than an electric starter, on a 15 inch shaft with tiller steering. Mercury rates it at 103 lbs, spinning to 5700 to 6200 rpm at full throttle, and fits a three-blade aluminum propeller sized at 9.2 inch diameter, 9.1 inch pitch.

Starting without a battery

Manual starting means you pull-start this motor rather than relying on an onboard battery and electric starter, a common choice for small boats, backup motors, or anywhere you want to skip the wiring. Tiller steering keeps the whole setup self-contained at the transom, with nothing routed to a console. A pull-start motor like this one has no battery dependence at all, which keeps wiring simple but means every start is a manual pull of the cord. That simplicity suits a lightweight boat better than one already carrying several battery-dependent accessories.

What ships with it

Mercury supplies the propeller described above, along with a printed manual, a tool kit, a quick-connect fuel line, and a tank sized at 3.2 gallons.

Pull-start motors like this one skip the wiring a battery and electric starter would need, simplifying the install on a small boat.

Electric or manual starting? Manual, pull-start rather than a battery-powered starter.

What coverage comes with it? New-motor coverage here is Mercury's usual 3-year warranty.

Startup & Installation Checklist

  • Inspect all external gaskets, seals, spark plugs and timing components prior to installation.
  • Refill engine oil, transmission gear oil and coolant to manufacturer-specified capacities before initial cranking.
  • Prime the lubrication system and verify ECU wiring pinouts, sensors, and ground connections.
  • Startup warranty covers internal lubricated components, cylinder heads, and engine block for 30 days from delivery.

Full terms: 30-day startup warranty · returns