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SeaPro™ FourStroke
SeaPro™ FourStroke 75-115 hp

The most efficient mid-range, working FourStrokes ever.

The SeaPro FourStroke Mid-Range takes it to the next level – unbridled power, unusually compact, uncompromising reliability, unbelievably fuel efficient.

  • Engine type 8-valve single overhead cam (SOHC), Inline 4
  • Displacement (L) 2.1
  • Full throttle RPM 5000-5500
  • Steering Big Tiller, Dual cable mechanical, Electro-Hydraulic Power Steering Optional on Duals, Hydraulic
  • Dry weight *Lightest model available 363 lbs / 165 kg

The specifications displayed here may not be indicative of the entire engine family; click on the “See All Models and Specs” link to view the specs in detail.

See All Models and Specs

SeaPro powering the clean-up of Northland.

SeaPro powering the clean-up of Northland.

Removing rubbish from New Zealand’s Northland harbours and coastline is a never ending job, so the team at Sea Cleaners are delighted their newest boat is powered by a super-durable 90hp Mercury FourStroke SeaPro.

Click here to read more.

Easy to Gauge.

Easy to Gauge.

Accurate digital information is presented in a clean, easy-to-read gauge for instant, reliable information at a glance. Combined with additional sensors, Mercury’s standard gauges are powerful tools to provide safety and comfort while on the water.

Corrosion Resistance.

Corrosion Resistance.

Mercury’s proprietary formula – XK360, is an extremely low copper content aluminium alloy, which leads the industry in corrosion resistance. This makes costly corrosion failures and high labour bills a thing of the past. Most competitors use alloys with 2% to 4% copper content which will corrode faster than our MercAlloy, XK360 or A356 alloys

Repower with SeaPro.

Repower with SeaPro.

The compact size also means older boats that were not initially designed for the weight of heavier four-strokes can now be repowered and reborn to perform at their best with the latest technology.

Leading Gearcase Technology.

Leading Gearcase Technology.

All 75-115hp SeaPro FourStrokes utilize the Command Thrust gearcase. This heavy-duty gearcase allows users to run an oversized prop, sits deeper in the water and incorporates a different gearcase ratio – all designed to improve handling and more easily lift heavier boats.

Stiffer Upper Mounts.

Stiffer Upper Mounts.

On the SeaPro range the upper mounts are designed to be also two times stiffer than recreational models to maximize durability. Their longevity makes them ideally suited to the demands and rigors of commercial applications.

Bigger Footprint.

Bigger Footprint.

The larger Command Thrust gearcase creates a bigger footprint in the water, which provides more leverage to control your boat. The larger torpedo, combined with a bigger-diameter prop, can lift a heavy boat onto plane more easily and hold it there at lower speeds without impacting top speed.

Specifications

SeaPro™ FourStroke: SeaPro™ FourStroke 75-115 hp

  • HP / kW
    • 115 / 86
    Engine type
    • 8-valve single overhead cam (SOHC)
    • Inline 4
    Displacement (L)
    • 2.1
    Full throttle RPM
    • 5000-5500
    Air induction
    • Performance-Tuned Scroll Intake Manifold
    Fuel induction system
    • Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
    Alternator amp / Watt
    • 35 amp / 441 watt with water-cooled voltage regulator
    Recommended fuel
    • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
    Recommended oil
    • NMMA Certified FCW 25W-40 Synthetic Blend
    Engine protection operator warning system
    • SmartCraft Engine Guardian
    Compatible with SmartCraft digital technology
    • Yes
    Starting
    • Smart Start Electric
    Controls
    • Mechanical throttle & shift
    Steering
    • Big Tiller
    • Dual cable mechanical
    • Electro-Hydraulic Power Steering Optional on Duals
    • Hydraulic
    Shaft length
    • 20" / 508 mm
    • 25" / 635 mm
    Gearcase ratio
    • 2.38:1
    Dry weight *Lightest model available
    • 363 lbs / 165 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
    Gear shift
    • F-N-R
    Trim system
    • Power Tilt
    • Power Trim
    Exhaust system
    • Through prop
    Shallow water trim range (degrees)
    • 20
    Counter Rotation
    • Available
    Color
    • Phantom Black
    Lubrication system
    • Wet sump
    Oil Capacity
    • 5.5 qts / 5.2l
    Maximum Trim Range
    • 22° (-6° to 16°)
    Maximum Tilt Range
    • 70° (-6° to 64°)
    Print Compare With Other Products
  • HP / kW
    • 90 / 67
    Engine type
    • 8-valve single overhead cam (SOHC)
    • Inline 4
    Displacement (L)
    • 2.1
    Full throttle RPM
    • 5000-5500
    Air induction
    • Performance-Tuned Scroll Intake Manifold
    Fuel induction system
    • Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
    Alternator amp / Watt
    • 35 amp / 441 watt with water-cooled voltage regulator
    Recommended fuel
    • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
    Recommended oil
    • NMMA Certified FCW 25W-40 Synthetic Blend
    Engine protection operator warning system
    • SmartCraft Engine Guardian
    Compatible with SmartCraft digital technology
    • Yes
    Starting
    • Smart Start Electric
    Controls
    • Mechanical throttle & shift
    Steering
    • Big Tiller
    • Dual cable mechanical
    • Hydraulic
    Shaft length
    • 20" / 508 mm
    • 25" / 635 mm
    Gearcase ratio
    • 2.38:1
    Dry weight *Lightest model available
    • 363 lbs / 165 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
    Gear shift
    • F-N-R
    Trim system
    • Power Tilt
    • Power Trim
    Exhaust system
    • Through prop
    Shallow water trim range (degrees)
    • 20
    Color
    • Phantom Black
    Lubrication system
    • Wet sump
    Oil Capacity
    • 5.5 qts / 5.2l
    Maximum Trim Range
    • 22° (-6° to 16°)
    Maximum Tilt Range
    • 70° (-6° to 64°)
    Print Compare With Other Products
  • HP / kW
    • 75 / 56
    Engine type
    • 8-valve single overhead cam (SOHC)
    • Inline 4
    Displacement (L)
    • 2.1
    Full throttle RPM
    • 5000-5500
    Air induction
    • Performance-Tuned Scroll Intake Manifold
    Fuel induction system
    • Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
    Alternator amp / Watt
    • 35 amp / 441 watt with water-cooled voltage regulator
    Recommended fuel
    • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
    Recommended oil
    • NMMA Certified FCW 25W-40 Synthetic Blend
    Engine protection operator warning system
    • SmartCraft Engine Guardian
    Compatible with SmartCraft digital technology
    • Yes
    Starting
    • Smart Start Electric
    Controls
    • Mechanical throttle & shift
    Steering
    • Big Tiller
    • Dual cable mechanical
    • Hydraulic
    Shaft length
    • 20" / 508 mm
    Gearcase ratio
    • 2.38:1
    Dry weight *Lightest model available
    • 363 lbs / 165 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
    Gear shift
    • F-N-R
    Trim system
    • Power Tilt
    • Power Trim
    Exhaust system
    • Through prop
    Shallow water trim range (degrees)
    • 20
    Color
    • Phantom Black
    Lubrication system
    • Wet sump
    Oil Capacity
    • 5.5 qts / 5.2l
    Maximum Trim Range
    • 22° (-6° to 16°)
    Maximum Tilt Range
    • 70° (-6° to 64°)
    Print Compare With Other Products

Documents

Buy the Books
Buy the Books

You can order all available Mercury literature online or through any authorized Mercury dealer. Please have your outboard or sterndrive serial number before placing the order.

  • Operation, Maintenance, and Warranty Manuals
  • Parts Manual
  • Service Manual

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