Buy 2016 Mercury 115 HP four-stroke EFI outboard motor
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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

Buy used 2016 Mercury 115 HP FourStroke outboard engines or explore new engines for sale built for dependable marine performance and efficient everyday boating. The 2016 Mercury 115 HP FourStroke is a popular choice for buyers searching for reliable four-stroke outboard motors, replacement boat engines, and fuel-efficient marine propulsion systems. Designed for smooth acceleration, quiet operation, and long-term durability, this outboard delivers dependable performance across recreational and workboat applications. The 2016 Mercury 115 HP FourStroke is engineered to provide balanced horsepower, responsive throttle control, and consistent performance across lakes, rivers, coastal waters, and changing marine conditions. Built for versatility, this outboard combines practical marine engineering with dependable long-term operation. Powered by a 2.1-liter inline 4-cylinder platform, the engine delivers smooth power output and efficient performance throughout the operating range. Its refined design supports excellent fuel economy while maintaining dependable acceleration and everyday usability. Equipped with advanced Electronic Fuel Injection (EFI), the engine optimizes fuel delivery for cleaner combustion, improved throttle response, and reliable starting. This system supports efficient operation while helping reduce fuel consumption and operating costs. Mercury SmartCraft Engine Guardian technology continuously monitors engine conditions to support dependable performance and operational protection. Smart Start electric starting enhances reliability and provides smooth engine engagement during every launch. Built with water-cooled operation and compatibility with multiple steering and control configurations, the Mercury 115 HP FourStroke adapts easily to different vessel layouts. Optional power tilt and trim functionality improve handling and overall boating control. Available with multiple shaft length options, this outboard supports flexible installation across a variety of marine setups and vessel requirements. Ideal for runabouts, fishing boats, pontoons, utility boats, and recreational watercraft, the 2016 Mercury 115 HP FourStroke remains a trusted solution for dependable propulsion and efficient marine performance. Key Features: • 2016 Mercury 115 HP FourStroke outboard engine • 2.1-liter inline 4-cylinder platform • Electronic Fuel Injection (EFI) system • SmartCraft Engine Guardian technology • Smart Start electric starting • Smooth acceleration and quiet operation • Fuel-efficient marine performance • Water-cooled engine design • Multiple steering and shaft configurations • Suitable for recreational and workboat use

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.