40 EFI

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. 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.


Water is drawn into the unit through the intake grill by an impeller, driven directly by the engine driveshaft. The water is then forced at high pressure through an outlet nozzle, creating thrust that drives the boat forward. To obtain reverse, a gate lifts into position over the outlet re-directing the pressure stream in the opposite direction.

HP/Kw @ Prop 40 / 29
Full throttle RPM 5500-6000
Cylinder Configuration 4 (in-line)
Displacement (L / CID) 60.8 / 995
Bore and Stroke (in / mm) 2.56 x 2.95in
65 x 75mm
Fuel Induction System 2 valve single overhead cam (SOHC)
Ignition ECM 07 Digital Inductive
Fuel System Electronic Fuel Injection (EFI)
Alternator Amp 18 amp / 226 watt
Starting Electric (turn-key)
Gearcase Options Jet
Steering Big Tiller Compatible
Tiller Kit
Trim System Gas assist
Power Trim
Recommended Oil Mercury 4-Stroke Outboard Oil
Recommended Fuel 87% octane / up to 10% ethanol
Compatible with Smartcraft Digital Technology Yes
Shaft Length 15
Dry Weight * Lightest model available 267lbs / 121kg
CARB Star Rating 3