New
Honda15 HP
Honda BF15
2016 · gasoline
$2,200.00
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Used
Mercury
2016 Mercury 115 HP FourStroke
$3,500.00
The 2016 Mercury 115 HP FourStroke outboard is a reliable, fuel-injected four-cylinder marine engine designed to deliver smooth power and efficient performance for a wide range of boats. It features electronic fuel injection, electric start, and options for 20″ or 25″ shaft lengths.
Horsepower
115 HP
Fuel Type
gasoline
Year
2016
Hours
130
Displacement
2.1L
Stroke
4-stroke
Rated Output
86 kW/ 115HP
Rated Speed
6,000
In Stock (3 available)
Free shipping on orders over $500
90-day warranty included
Description
The 2016 Mercury 115 HP FourStroke outboard motor delivers a versatile blend of reliable power, smooth performance, and efficient fuel economy for a wide range of recreational and work-boat applications. Powered by a 2.1 L, 4-cylinder inline engine with advanced electronic fuel injection (EFI), this mid-range motor provides responsive throttle control and solid acceleration whether you’re cruising lakes, rivers, or coastal waters.
Built with Mercury’s SmartCraft Engine Guardian protection system and Smart Start electric starting, the 115 HP FourStroke is engineered for dependable daily use, low vibration, and quiet operation you’ll appreciate on long days on the water.
With water-cooled cooling, multiple steering and control options, and compatibility with power tilt/trim systems, this engine is ideal for runabouts, fishing boats, pontoons, and utility vessels. Shaft length options allow easy fitting to different transom heights, and Mercury’s reputation for durability makes this a solid choice for boaters seeking performance and longevity.
Specifications
SKUM2504
BrandMercury
CategoryOutboard Engines
ConditionUsed
Horsepower115 HP
Fuel Typegasoline
Year2016
Displacement2.1L
No. of Cylinders4 cylinders
Stroke4-stroke
Shaft Length20
Weight399.00 lbs
Hours130
Rated Output86 kW/ 115HP
Rated Speed6,000
Cylinder Bore x Stroke80mm x 90mm
Combustion SystemElectronic Fuel Injection (EFI)
AspirationNatural
Alternator35-amp
Dry Weight181 kg/ 399lbs
ControlsMechanical
Frequently Asked Questions
What type of engine is the 2016 Mercury 115 HP FourStroke?
It’s a 4-stroke, inline 4-cylinder outboard engine with 2.1 litre displacement, designed for smooth, efficient performance on a wide variety of boats.
How much horsepower does it produce?
The engine is rated at 115 horsepower (approx. 86 kW), offering a balanced power output for mid-size boats.
What fuel system does the Mercury 115 FourStroke use?
It uses computer-controlled multi-port Electronic Fuel Injection (EFI) for reliable starts, better throttle response, and improved fuel efficiency.
What kind of fuel should be used?
The recommended fuel is unleaded gasoline with a minimum octane rating of 87 (R+M/2); in some markets 90 RON is preferred.
What oil does this engine require?
Use Mercury FourStroke Oil 10W-30 or another marine-approved 4-stroke outboard oil per the owner’s manual.
What are the available shaft lengths?
The 2016 Mercury 115 HP FourStroke is typically available in 20-inch and 25-inch shaft lengths to fit different boat transom heights.
Does the engine support digital gauges and monitoring?
Yes — it’s SmartCraft compatible, meaning it can be paired with Mercury digital gauges and display systems for real-time engine data.
What kind of steering and control options are available?
The engine can be used with manual tiller steering, dual cable mechanical controls, or hydraulic/electro-hydraulic power steering depending on how your boat is rigged.
Does it have power trim and tilt?
Yes — power trim and power tilt systems are supported to help adjust engine angle for performance and shallow water operation.
How is cooling handled?
It uses a water-cooled system with a thermostat to maintain proper operating temperature.
Is the 2016 Mercury 115 HP FourStroke quiet and smooth?
Yes — Mercury’s FourStroke series is designed for low noise, reduced vibration, and smooth running, giving a comfortable boating experience.
What types of boats is this engine suitable for?
This 115 HP outboard is ideal for small-to-medium fishing boats, bay boats, runabouts, pontoons, and cruisers depending on boat weight and design.
What maintenance does this engine need?
Routine maintenance includes: Regular oil and oil filter changes Gearcase oil replacement Spark plug and fuel filter inspection/replacement Water pump impeller checks Following the owner’s manual maintenance schedule ensures reliability.
How fuel-efficient is it?
Thanks to the EFI system and optimized 4-stroke design, the engine delivers good fuel efficiency and solid mid-range torque, helping with cruising economy.
