75-150hp
Reach the Next Level
The SeaPro™ mid-range outboards take working to the next level—uncommonly powerful, uniquely compact, uncompromisingly reliable, and unbelievably fuel efficient. To maximize durability, upper mounts are twice as stiff as recreational models. The compact size of these mid-range outboards lets you refit older boats with more horsepower enabling them to perform better than ever with the latest technology. They're the engines with the toughness and durability you need to get the job done.
Engine Information and Specifications
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![150]()
Engine Details
The 150hp SeaPro™ is one tough customer, built to deliver loads of torque and higher durability than any other 150hp outboard. It’s perfect for commercial fishing vessels, commercial workboats and law-enforcement boats.Specifications - 150
HP / kW - 150 / 110
Engine type - 8-valve single overhead cam (SOHC)
- Inline 4
Displacement (L) - 3.0
Full throttle RPM - 4800-5300
Air induction - Performance-Tuned Scroll Intake Manifold
Fuel induction system - Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
Alternator amp / Watt - 60 amp / 756 watt (Belt-Driven)
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 - Electric (turn-key)
- Smart Start Electric
Controls - Mechanical throttle & shift
Steering - Big Tiller Compatible
- Dual cable mechanical
- Electro-Hydraulic Power Steering Optional on Duals
- Hydraulic power steering
Shaft length - 20" / 508 mm
- 25" / 635 mm
Gearcase ratio - 2.08:1
Dry weight *Lightest model available - 455 lbs / 206 kg
CARB star rating - 3
Bore and stroke - 4.0 x 3.6" / 102 x 92 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
Counter Rotation - Available
Color - Phantom Black
Lubrication system - Wet sump
Oil Capacity - 6.3 qts / 6.0l
Maximum Trim Range - 22° (-6° to 16°)
Maximum Tilt Range - 73° (-6° to 67°)
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![115]()
Engine Details
The ultimate in commercial-grade durability, high performance and efficiency in a 115hp package. For commercial fishing vessels, commercial workboats and law-enforcement boats.Specifications - 115
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
Gearcase options - Command Thrust (CT)
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°)
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![90]()
Engine Details
The engine built for you to depend on, offering trouble-free, low-maintenance performance in the harshest working environments. For commercial fishing vessels, commercial workboats and law-enforcement boats.Specifications - 90
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
Gearcase options - Command Thrust
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°)
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![75]()
Engine Details
Ultra-compact. Ultra-efficient. Ultra-durable. A motor that works hard all day long, day after day, in the toughest conditions. For commercial fishing vessels, commercial workboats and law-enforcement boats.Specifications - 75
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
Gearcase options - Command Thrust
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°)
Mercury SeaPro engines excel in Thailand
Sakchai Homsub and his team are out on the water 365 days a year, bringing tourists around the islands surrounding Pattaya, Thailand. As his customers rely on him, he counts on his SeaPro engines to deliver the performance required to take them out on the water day in, day out.
Harsh conditions can’t deter SeaPro
TowBoatUS and commercial boat builders turn to Mercury Marine’s SeaPro engines because they’re engineered to deliver longer engine life while maintaining the power and performance necessary to get the job done.
The Mercury Edge: Anti-corrosion protection
Mercury SeaPro four-stroke outboards offer superior protection against corrosion with the industry's lowest-copper aluminum alloy. And the life of critical components is extended with more stainless steel.
Owners Manuals
Need an Owner’s Manual for your Mercury engine to perform maintenance, replace parts or just learn more about your engine? Mercury has made it easy for you to purchase a printed copy or to download and print your own copy. To order a printed version of the Service Manual for your particular Mercury Outboard or MerCruiser Engine, click here.
Documents
Take a deeper dive into what makes Mercury outboards stand apart with detailed information on each motor and the features that make them unique.
