ALSO AVAILABLE IN CTO (COMMAND THRUST) MODEL, SEE DESCRIPTION AT THE END OF THE AD, PLEASE CONTACT US FOR PRICING.
HP / kW - 100 / 74
Engine Type - 4 inline / Single overhead cam (SOHC) - 8 valves
Displacement (L) - 2.1
Maximum RPM - 5000-6000
Air intake - High-performance spiral intake manifold
Fuel induction system - Computer-controlled multipoint electronic fuel injection (EFI)
Alternator amps/watts - 35 A / 441 watts with water-cooled voltage regulator
Recommended fuel - Unleaded gasoline 98
Recommended oil - Mercury FourStroke 10W-30
Engine protection warning system - SmartCraft Engine Guardian
Compatible with digital SmartCraft technology - Yes
Starting - Electric with smart start
Controls - Mechanical throttle and shift control
Steering - Compatible with big tiller / Hydraulic power steering / Dual cable mechanical
Shaft length - L: 20" / 508 mm - XL: 25" / 635 mm
Gear ratio - 2.07:1
Dry weight *Lightest model available - 163 kg
CARB star rating - 3
Bore and stroke - 3.5 x 3.2" / 90 x 81 mm
Ignition - SmartCraft ECM 70 digital inductive
Fuel system - Electronic fuel injection (EFI)
Cooling system - Water-cooled with thermostat
Direction - F-N-R
Transom options - Standard
Trim system - Hydraulic lift / Electric lift
Exhaust system - Through propeller
Shallow water trim range (degrees) - 20
Color - Phantom Black
Lubrication system - Wet sump
Maximum oil volume - 5.5 qts / 5.2 L
Maximum trim range - 22° (-6° to 16°)
Maximum tilt range - 70° (-6° to 64°)
More silent than competitors: The Mercury 115 FourStroke is quieter than a 115 hp competitor at all RPMs.
At idle, Mercury is four decibels below the competition - the competing outboard is 25% louder.
At cruise, where conversations typically happen, the competing outboard generates about 15% more noise.
At full throttle, Mercury is over eight decibels quieter - the competing outboard is 50% louder.
Tests conducted by Mercury PDE NVH staff in a semi-anechoic Mercury Marine chamber (Sound Lab).
Counter-rotation: Do you enjoy offshore boating even if you do not intend to buy a large boat? Mercury offers, for the first time, a 115 hp FourStroke engine with left rotation. Two of these mid-range monsters at your stern provide the maneuverability and docking safety of twin-engine rigs with more power, but at a much more affordable price. Unlike rival twin 115 hp engines, Mercury twin 115 FourStrokes are Command Thrust models that drive V6-category propellers, such as those in the Enertia series, to offer better acceleration and control on choppy waters.
*Available only on 115 hp
Powerful and efficient: Thanks to their reduced weight and large displacement, Mercury's new 80 - 115 FourStroke models deliver generous torque and instant power. Since they do not need to exert as much effort as heavier or lower-displacement engines, these engines allow boats to plane faster, accelerate better, and achieve better fuel efficiency at cruising speeds.
Lightweight and energy-efficient: Mercury's renowned engineering team has packed incredible power into these lightweight, compact four-cylinder, single-overhead-cam engines. The 115 hp weighs 9 kilograms less than its nearest four-stroke competitor, making it the lightest low-emission outboard in its horsepower category.
The dry weight is that of the lightest model. Comparative weights refer to base engines without oil, propeller, or integrated steering cylinder. Weights based on owner’s manual specifications.
A bigger footprint: The larger Command Thrust lower unit creates a bigger footprint in the water, providing better boat control. The larger, fusiform gearcase, combined with a larger-diameter propeller, can help a heavy boat plane more easily, and maintain that speed at lower speeds, without affecting top speed.
Silent operation guaranteed: Equipped with the same maintenance-free valve control system as our 150 FourStroke engines, the 80-115 hp FourStroke outboards are incredibly durable.
Smoother than competitors: The Mercury 115 FourStroke produces less vibration and provides a smoother ride than a competing 115 hp four-stroke.
At idle, vibration level at the driver's seat is up to 50% lower than the competing outboard.
At the stern, the competing outboard vibrates nearly five times more than Mercury, both at cruising and full throttle RPM.
Tests conducted by Mercury PDE NVH staff at a Mercury Marine test facility on a 2013 Bayliner 170.