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25-40hp

Get to the Fish, Fast.

Mercury® Jet Outboards are designed with the power and the weight to cover any shallow-water jet boat application. Our FourStroke jet outboards are electronic fuel injected, with a range from 25 to 40 horsepower.

Engine Information and Specifications

Scroll within the table below to view specifications for each engine.

40 25
Engine Details Mercury® jet-drive outboards are specifically designed to pilot boats in shallow waters where propeller-driven hulls are unable to operate. Mercury’s jet-drive outboards are specifically designed to pilot boats in shallow waters where propeller-driven hulls are unable to operate. Because there is no lower unit extending below the hull, the jet drive permits passage over obstacles that would foul a propeller-driven outboard boat.
HP / kW 40 / 29 25 / 18.4
Engine type Inline 4 Inline 3
Displacement (L)
Full throttle RPM 5000-6000 5000-5500
Air induction
Fuel induction system 2 valves per cylinder, single overhead cam (SOHC) 2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt 18 amp / 226 watt 15 amp / 186 watt
Recommended fuel 87 octane / up to 10% ethanol 87 octane / up to 10% ethanol
Recommended oil Mercury FourStroke Oil 10W-30 Mercury FourStroke Oil 10W-30
Engine protection operator warning system SmartCraft Engine Guardian Low oil pressure
Over-rev
Overheat
Sensor failure
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