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Mercury Marine Midrange Fourstroke Outboards

[Verado] [Optimax] [Fourstroke
[Midrange 4-Strokes (30 to 115 hp)] [Small 4-Strokes (9.9 to 15 hp)] [Portable 4-Strokes (4 to 6 hp)]
[115 EFI] [90] [75] [60 EFI] [50 EFI] [40 EFI] [40] [30 EFI] [30]


If you need clean, quiet, reliable power, nothing can perform like a Mercury® FourStroke.

Mercury Marine Fourstroke Outboards.

Mercury 40 EFI FourStroke

With more and more four-stroke engines being sold every year, boaters are quickly realizing the many benefits that four-stroke technology offers, such as incredible fuel economy, no exhaust smoke, low noise levels and smooth running. Mercury’s EFI system takes four-stroke benefits even further.

In fact, Mercury’s 30-60 Electronic Fuel Injected outboards have been redefining performance since their introduction in 2001.

Proven Performance
Mercury pioneered electronic fuel injection for outboards back in 1987. Now, by combining our proven EFI technology with the benefits of four-stroke outboards, Mercury FourStrokes take performance to the next level.

Mercury’s exclusive EFI system delivers reliable turn-key starting and smooth, consistent running in all types of weather conditions and climates. Unlike carburetors, Mercury’s EFI system monitors engine speed, piston position, intake manifold pressure, throttle position, intake air temperature and engine coolant temperature to continuously adjust and precisely meter the amount of fuel used by the engine.

Keeping it Cool
The Mercury 30-60 EFI system employs dual fuel coolers as added protection against vapor lock. Vapor lock occurs when the fuel temperature rises too high and the fuel vaporizes. When that happens, the fuel no longer flows through the system and the engine will not start or run. By incorporating two fuel coolers, the temperature of the fuel is better controlled to provide reliable starting and consistent operation, especially during hot conditions.

Emission Friendly
By precisely controlling the fuel being used, Mercury 30-60 EFI outboards exceed even the strictest emissions standards in place today. These engines surpass the California Air Resources Board’s (CARB) 3-Star rating, making them some of the cleanest-running engines in the market. In fact, these engines have reduced emissions more than 91% over traditional 2-Stroke outboards.

Peace of Mind
The Mercury 30-60 EFI FourStrokes incorporate a built-in engine protection system that provides the operator with peace of mind whenever the engine is operating. The state-of-the-art ECM555, one of the most powerful engine-control modules on the market, not only monitors vital engine functions to deliver the right amount of fuel, it also protects the engine with its Engine Guardian system in case something does go wrong. In the case of engine overheat or low oil pressure, Engine Guardian will signal that there is a problem and will automatically go into a self-protect mode by reducing engine RPM.

The ECM555 also allows these engines to be rigged using SmartCraft gauges.

Charge it
Mercury’s 30-60 EFI outboards boast some of the highest output alternators in their class. These engines include a standard 20-amp alternator to power a host of electronic equipment and keep your batteries charged.

Bigfoot Engines
When you demand high thrust, Mercury delivers. Mercury offers Bigfoot versions of the 40, 50 and 60 EFI FourStrokes -- more models than any other manufacturer. In fact, no other manufacturer combines high thrust and EFI technologies on the same engine. Mercury recognized that the combination of EFI’s enhanced running quality and Bigfoot’s high-thrust capabilities provides a perfect engine for any pontoon boat.

Warranty
Mercury offers all four-stroke engines with one of the most aggressive warranties available. Each engine is backed by a standard three-year non-declining limited warranty and industry exclusive Three-Year Corrosion Failure Warranty.

Specifications
HP @ Prop: 40
kW @ Prop: 29.8
Max RPM (WOT): 5500-6000
Cylinder/Configuration: 3 (in-line)
Displacement (CID/cc): 45.6/747
Bore & Stroke (in): 2.56 x 2.95
Bore & Stroke (mm): 65 x 75
Cooling System: Water cooled w/thermostat
Ignition System: ECM 555 Digital Inductive
Starting: Electric (turn-key)
Gear Ratio: 2.00:1
Gear Shift: F-N-R
Steering: Remote or tiller
Alternator Amp: 18
Alternator Watt: 223
Trim System: Gas assist or power trim
Exhaust System: Through prop
Lubrication System: Wet sump w/ pressurized lube system
Fuel Induction System: 2-valve single overhead cam
Shaft Length (inches): 15/20
Shaft Length (mm): 381/508
Dry Weight (lbs.) (Lightest Version model, excludes engine oil, rigging, hardware and propeller): 216
Dry Weight (kg.) (Lightest Version model, excludes engine oil, rigging, hardware and propeller): 98
Operator Warning System: SmartCraft
Available Propellers: Consult Current Dealer Propeller Guide
SmartCraft: Yes
CARB Star Rating: 3
Warranty: 3 years
Recommended Oil: Mercury 4-Stroke Outboard Oil

Features & Benefits
  • Mercury EFI FourStrokes provide the ultimate in low-emissions power. Instant turnkey starting and ultra-efficient fuel management are the trademarks of our EFI FourStroke lineup.
  • Our 40 carb FourStrokes are easy to pull start and run quietly and efficiently. They are the perfect choice when a manual start motor is preferred.
  • Mercury's 40 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 vapor lock.
  • Thermoplastic materials in the intake systems of the 40 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.
  • Each model is tolerant of winter and summer grade fuels for convenience.
  • All Mercury FourStrokes feature a 3-year Factory Backed Warranty and a 3-year Limited Corrosion Warranty.
  • Each model is 3-star C.A.R.B. rated (C.A.R.B. 2008, EPA 2006).


  • All Mercury FourStrokes have a full 3 Year Warranty!

     Mercury Parts and Service
    Mercury Outboard Sizes and Models
    [Optimax] [Fourstroke


    Midrange FourStroke Models
    [115 EFI] [90] [75] [60 EFI] [50 EFI]
    [40 EFI] [40] [30 EFI] [30]

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