Mercury 20 HP MH EFI – Reliable Power in a Compact Build
Lightweight, Efficient, and Built for Performance
The Mercury 20 HP MH EFI delivers serious power in a lightweight, portable design. It’s perfect for small boats and serious anglers.
With a 333cc large displacement powerhead, this outboard produces excellent low-end torque and fast throttle response.
It features a tuned intake, ensuring smooth acceleration and easy maneuverability in tight or open waters.
Enjoy effortless starts every time with Mercury’s advanced EFI system and digital CD ignition with spark advance.
Built with high-grade marine alloy, the Mercury 20 HP MH EFI is corrosion-resistant and rated for saltwater performance.
A thru-cowl backup manual start gives you peace of mind on the water. Safety features include start-in-gear protection and a lanyard stop switch.
Its twist-grip throttle, adjustable steering tension, and vibration-reducing wishbone mount offer unmatched control and comfort.
The Mercury 20 HP MH EFI includes a 3.2-gallon fuel tank and quick-connect fuel line for long runs.
A canister-style oil filter makes maintenance simple, while thermostat-controlled water cooling helps maintain consistent engine temperature.
Whether you’re trolling or cruising, this outboard keeps things quiet with through-prop exhaust.
Why Buy the Mercury 20 HP MH EFI from Marine Gear Supply?
We offer genuine Mercury parts and engines at competitive prices. Our experts are here to support your boating needs anytime.
FAQs About Mercury 20 HP MH EFI
Is the Mercury 20 HP MH EFI good for saltwater?
Yes, it is saltwater rated and includes zinc anodes and a corrosion-resistant build for durability.
How much does the Mercury 20 HP MH EFI weigh?
It weighs approximately 103 lbs, making it easy to transport and mount.
What kind of fuel does it use?
It runs on 87-octane gasoline with up to 10% ethanol content.
Does it come with a fuel tank?
Yes, a 3.2-gallon external fuel tank and line are included in the box.














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