Mercury SeaPro 115hp – lightweight 2.1L outboard engine with heavy-duty 115HP performance

Code:

1116F571D

Mercury 115 Seapro 115HP FourStroke Outboard

Features

Engine hp:

115 hp
Engine type:

4 cylinders inline / SOHC 8 valves
Displacement:

2100 cc (L)
Max. RPM:

5000 - 5500 RPM RPM
Alternator Amp / Watt:

35A / 441W with water-cooled voltage regulator
Fuel recommendation:

Unleaded regular, minimum 87 octane (R+M/2) or 90 RON, maximum 10% ethanol
Engine protection system:

SmartCraft Engine Guard
Reduction gear ratio:

2.38:1
Ignition type:

ECM 07 Digital Inductive (CT model) ECM 70
Recommended oil:

25W-40 Synthetic Blend NMMA Certified FCW SAE 25W-40
Fuel system:

EFI
Cooling system:

Water cooling + thermostat
Gears:

F-N-R
Exhaust system:

Through the propeller
Propeller:

Yes

The Mercury SeaPro 115hp is a mid-range champion, delivering 115 horsepower in a compact and lightweight design ideal for commercial needs. Its 2.1-liter inline-4 engine packs more displacement than most 115hp outboards, translating into strong acceleration and efficiency. Weighing significantly less than competing models, the SeaPro 115 improves handling and fuel savings – especially important for quick planing. Renowned for its reliability and low maintenance, this 115hp outboard is a favorite for powering a variety of boats from fishing rigs to small workboats.

2.1L inline-4 (115hp) – higher displacement ensures brisk throttle response, punchy acceleration, and excellent pulling power for its class.
Up to 9 kg lighter than similar 115hp engines – lower weight improves stability, agility, and fuel economy on the boat.
Command Thrust option – available with a larger gearcase and prop, providing ~20% more thrust for heavier boats and pontoons (faster planing under load).
SmartCraft compatible – enables integration with digital gauges and optional Active Trim for automatic trim optimization, boosting efficiency and convenience.
Very quiet & smooth – optimized design makes the SeaPro 115 up to 30% quieter at cruise than competitors, ensuring comfort on long runs.

Model:

Price: €12,859⁰⁰ 25150⁰²лв.

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165.000 Kgs

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Mercury SeaPro 115hp stands out in the 115hp category by offering a rare combination of high power, low weight, and commercial-grade toughness. The heart of the engine is Mercury’s 2.1L inline-four, a larger displacement than typically found at this horsepower, which gives the SeaPro 115 a performance edge. Operators will notice quick throttle response and the ability to carry heavier loads without straining – a crucial advantage for tasks like transporting passengers, pulling nets, or towing gear on a small boat.

A key benefit of the SeaPro 115 is its lightweight design: at around 165 kg, it’s up to 9 kg lighter than comparable models. This reduction improves everything from out-of-the-hole acceleration to overall fuel consumption, making your operations more efficient. For applications that require more thrust, Mercury offers a Command Thrust (CT) version of the 115, featuring a larger gearcase and propeller that can provide roughly 20% more pushing power – great for barges, pontoon boats, or heavier hulls that need to get on plane quickly.

Despite its compact size, the SeaPro 115 doesn’t skimp on technology. It supports Mercury’s SmartCraft integration, allowing you to utilize digital gauges and monitoring – you can keep an eye on engine vitals and even add Active Trim, which automatically adjusts trim for optimal performance. The engine is engineered to run quietly; Mercury optimized the intake and exhaust and even added injector noise covers, making the SeaPro 115 about 30% quieter at cruise than many of its rivals. Maintenance is simplified by a top-cowl oil check door (no need to remove the whole cowling), and the overall design is built for quick service. With Mercury’s renowned corrosion protection and global dealer network, maintaining and repairing a SeaPro 115 is straightforward. In summary, the Mercury SeaPro 115hp delivers top-of-class performance, efficiency, and reliability for those who rely on their midrange outboard to earn a living.

Ideal use cases: Small commercial fishing boats, guide boats, work skiffs, and pontoon boats (approximately 4–5.5 meters), where 115hp offers the perfect balance of power and fuel efficiency. The SeaPro 115 is also well-suited as twin engines on medium-sized vessels for redundancy and extra power.
Recommended for: Operators in need of a midrange engine that’s easy to handle and maintain yet capable of hard work – Mercury SeaPro 115hp excels in rental fleets, resort boats, and any application requiring dependable 115hp that can run quietly and efficiently all day long.

Engine hp:

115 hp
Engine type:

4 cylinders inline / SOHC 8 valves
Displacement:

2100 cc (L)
Max. RPM:

5000 - 5500 RPM RPM
Alternator Amp / Watt:

35A / 441W with water-cooled voltage regulator
Fuel recommendation:

Unleaded regular, minimum 87 octane (R+M/2) or 90 RON, maximum 10% ethanol
Engine protection system:

SmartCraft Engine Guard
Reduction gear ratio:

2.38:1
Ignition type:

ECM 07 Digital Inductive (CT model) ECM 70
Recommended oil:

25W-40 Synthetic Blend
NMMA Certified FCW SAE 25W-40
Fuel system:

EFI
Cooling system:

Water cooling + thermostat
Gears:

F-N-R
Exhaust system:

Through the propeller
Propeller:

Yes