Browse every Mercury 20 HP outboard for sale: 20 EFI four strokes in manual or electric start tiller form, plus a power trim version, in 15 or 20 inch shafts. Light, quick and fuel injected for jon boats, skiffs and RIBs, shipped worldwide.

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Mercury 20 HP Outboard for Sale: The 20 EFI

The Mercury 20 EFI is one of the best power to weight packages in the small outboard world. It uses the same light, compact twin cylinder body as the Mercury 15, but delivers a clear step up in performance, so boats plane faster and carry heavier loads with less effort. Here is every Mercury 20 HP outboard for sale we currently stock.

Models in Stock

Who Buys a Mercury 20?

  • Owners of 4 to 4.6 metre jon boats and aluminium fishing boats.
  • RIB and inflatable owners who want strong performance from a light motor.
  • Duck hunters and river anglers who need dependable power for small boats.
  • Rental fleets and work boats that need simple, reliable motors.

Mercury 20 EFI Strengths

Great power for its weight

Sharing a body with the 15 keeps the 20 light, which helps small hulls plane quickly and stay balanced.

Fuel injection

EFI gives quick starting in cold or damp weather, a smooth idle and good fuel economy, with no carburettor to clean after storage.

Power trim and tilt option

The 20ELHPT lets you trim the motor under way for a better ride and tilt it up at the press of a button for shallow water and launching.

Choosing Your Mercury 20

  1. Shaft: measure your transom. About 15 inches calls for the standard shaft; about 20 inches calls for L.
  2. Starting: manual is lighter and simpler; electric adds convenience and battery charging.
  3. Tilt: power trim and tilt is worth it on heavier boats and if you often run shallow.

Getting the Best Performance

Keep weight forward to help the boat climb onto plane, adjust the trim pin or power trim so the boat runs level, and fit a prop that lets the motor reach its recommended full throttle revs with your usual load. Jon boats often benefit from a slightly lower pitch prop if they carry heavy gear.

20 HP or 25 HP?

The Mercury 25 moves to a three cylinder engine with more torque and smoothness, but more weight. If weight matters most, the 20 is a great choice; for heavier boats rated higher, consider the 25.

Care Tips

  • Flush with fresh water after salt water use.
  • Change engine oil and gear oil on schedule.
  • Use fresh fuel with a water separating filter to protect the injection system.
  • Inspect the water pump, anode and propeller regularly.

Frequently Asked Questions

Is the Mercury 20 heavier than the 15?

No, they share the same compact body.

Is it fuel injected?

Yes, all models here are EFI.

Do you ship worldwide?

Yes, with a freight quote first.

How to Order

Every engine in this category is listed with its full model code and price. Choose the version that matches your transom height, steering and starting needs, then ask us for a freight quote to your country or nearest port. We ship worldwide with tracking, and your quote shows the full delivery cost before you pay. Call or WhatsApp +1 209 690 5983, or message us through our contact page. To compare other sizes, see our full range of Mercury outboards.