Mercury EFI outboards deliver reliable turnkey starts, improved fuel efficiency, and instant throttle response. Great for aluminum tiller, aluminum console, inflatable rigid hull (RIB) and soft hull, watersports, and fish & ski boats.

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Engine Specifications by Horsepower

Horsepower 40 EFI
Displacement (CID/CC) 45.6 / 747
Full throttle RPM 5500-6000
Alternator amp / Watt 18 amp / 226 watt