EFI FourStrokes provide the ultimate in low-emissions power. Instant turnkey starting and ultra-efficient fuel management are the trademarks of our EFI FourStroke line-up.
Mariners 40hp EFI FourStrokes feature state-of-the-art fuel system components. The fuel injection system is designed to provide maximum fuel economy and reduced risk of vapour lock.
Thermoplastic materials in the intake systems of the 40hp EFI make the engine only 12 pounds heavier than the carbureted version! The result: All of the benefits of EFI with very little weight increase.
At Mercury Marine, we offer an industry-leading 3 Year Warranty with every outboard.
Each model is 3-star C.A.R.B. rated (C.A.R.B. 2008, EPA 2006).
- Propshaft Rated Horsepower: 40hp (29.89kw)
- Max RPM at Full Throttle: 5500-6000
- Cylinders/Configurations: 3
- Displacement: 45.6 cu in (747 cc)
- Bore & Stroke: 2.56" x 2.95" (65mm x 75mm)
- Cooling System: water cooled with thermostat
- Ignition System: ECM 555 Digital inductive
- Starting: Electric
- Gear Ratio: 2.00:1
- Gear Shift: F-N-R
- Steering: Tiller or Remote
- Alternator System: 20amp (252 watt)
- Trim Positions: Power trim standard
- Exhaust System: Through prop
- Lubrication System: Wet sump
- Fuel Induction System: 2 valve single overhead cam design
- Operator Warning System: Engine fault, Overheat, Low oil, Engine overspeed, low battery, Coolant sensor failure
- Shaft Length: Short 15" (381mm) Long 20" (508mm)
- Weight: 216lb (98kg)
- Counter Rotation: N/A
- Fuel Tank: N/A
- Propeller Option: See dealer
- Prop Selection (Pitch): 8"-19"
- Propeller Drive: Splined rubber hub
- Oil Injection: N/A
- Carb Star Rating: 3
- SmartCraft Capabilities: Yes
