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
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Engine Details
Mercury® jet-drive outboards are specifically designed to pilot boats in shallow waters where propeller-driven hulls are unable to operate.Specifications - 40
HP / kW - 40 / 29
Engine type - Inline 4
Displacement (CID/CC) - 60.8 / 995
Full throttle RPM - 5000-6000
Fuel induction system - 2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt - 18 amp / 226 watt
Recommended fuel - 87 octane / up to 10% ethanol
Recommended oil - Mercury FourStroke Oil 10W-30
Engine protection operator warning system - SmartCraft Engine Guardian
Compatible with SmartCraft digital technology - Yes
Starting - Electric (turn-key)
Steering - Big Tiller
- Remote
- Tiller Kit
Shaft length - 15" / 381 mm
Dry weight *Lightest model available - 267 lbs / 121 kg
CARB star rating - 3
Bore and stroke - 2.56 x 2.95" / 65 x 75 mm
Ignition - ECM 07 Digital Inductive
Fuel system - Electronic Fuel Injection (EFI)
Gearcase options - Jet Drive
Trim system - Power Trim
Color - Phantom Black
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![25]()
Engine Details
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.Specifications - 25
HP / kW - 25 / 18.4
Engine type - Inline 3
Displacement (CID/CC) - 32.1 / 526
Full throttle RPM - 5000-5500
Fuel induction system - 2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt - 15 amp / 186 watt
Recommended fuel - 87 octane / up to 10% ethanol
Recommended oil - Mercury FourStroke Oil 10W-30
Engine protection operator warning system - Low oil pressure
- Over-rev
- Overheat
- Sensor failure
Starting - Electric (turn-key)
- Manual
Steering - Remote
- Tiller
Shaft length - 20" / 508 mm
Dry weight *Lightest model available - 186 lbs / 84 kg
Emissions Star Rating - 3
Bore and stroke - 2.40 x 2.36" / 61 x 60 mm
Ignition - CDI w/electronic spark advance
Fuel system - Electronic Fuel Injection (EFI)
Gearcase options - Jet Drive
Trim system - Gas assist
Color - Phantom Black
The Big Tiller.
The optional center-mounted Big Tiller offers optimal control for the 35hp and 40hp Jet. A longer tiller grip incorporates a convenient power trim switch, the shift lever is close at hand, and an optional digital troll control adjusts engine speed as low as 700 rpm in 10-rpm increments.
Request a Quote
Your local Mercury Marine dealer can help you find the right engine for your needs.
Navigate Shallow Water
Mercury® Jet Outboards are specifically designed to pilot boats in shallow waters where propeller-driven hulls are unable to operate. Because there's no lower unit extending below the hull, the jet drive permits passage over obstacles that would restrict access to a propeller-driven outboard boat.
FourStroke Jet Outboards
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 80 horsepower.
Shallow-Water Champ
When the water’s too shallow for propeller-driven boats, turn to a Mercury® Jet Outboard or Sport Jet®.