Mercury 2013 FourStroke 150 HP Outboard Motors
Standard Features


Boaters spoke and we listened. The new Mercury 150 FourStroke is the toughest, smallest, and lightest 150 hp four-stroke engine in the world. In other words, another game-changing outboard from Mercury - just what you need to take your time on the water to the next level.

  • Mercury FourStroke technology for maximum fuel economy and smoothness
  • Large displacement for "out of the hole" performance
  • Compact and lowest weight in design for better hull control
  • Fewer moving parts for less friction and greater reliability
  • Quiet operation, making it easy to converse
  • An outboard that is fully tested in all conditions for all-around performance
  • The only outboard that comes with a 3-year corrosion warranty
  • More stainless steel components for longevity
  • Best-in-class battery charging system for longer battery life

The most compact, lowest weight, most durable 150 hp FourStroke outboard the world has ever seen. Extremely versatile in single or twin applications.


Model Year
FourStroke 150 HP
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Engine Type
4 (inline), 8-valve single overhead cam (SOHC)
150 hp (110 kW) at prop
183 ci (3,000 cc)
Bore x Stroke
4.0 x 3.6 (102 x 92 mm)
5,000 - 5,800
Fuel Induction
Computer controlled Sequential Multi-Port Electronic Fuel Injection (EFI)
SmartCraft ECM 07 Digital Inductive
Electric (turn-key)
Water-cooled with thermostat
Through prop


Gear Ratio
Gear Shift


60A, 756W (belt-driven)


Shaft Length
L: 20 in. (508 mm)
XL: 25 in. (635 mm)
455 lbs. (206 kg)


Big tiller compatible, Mercury power steering, hydraulic remote, electro-hydraulic power steering
Trim System
Power trim and tilt with SmartCraft programmable tilt
SmartCraft Engine Guardian

Standard Features

Durability & Superior Performance
 Higher displacement means less work from the engine to produce torque and horsepower. The new Mercury 150 hp FourStroke is built to develop loads of torque at a stress level that will ensure higher durability than any other 150 hp outboard. Higher displacement simply means more torque and horsepower. The higher the torque, the faster the holeshot and acceleration. And more power equals faster top speeds. The Mercury 150 FourStroke is the only 150 FourStroke to have a torque curve rivaling the strongest two-strokes.  
    Some 3.0L outboards produce well over 250 hp. This 3.0L Mercury FourStroke only needs to deliver 150 hp, which means exceptional durability and long-term peace of mind.  
    The new 150 hp FourStroke also features a robust 4.9 inch gearcase that uses larger, more durable components.  
    With nearly 10,000 hours of engineering and field testing, we made sure that this 150 hp FourStroke is the world's most reliable outboard engine.  
Light Enough for Efficient Performance
 The lowest weight 150 FourStroke on the planet!  
 What seems like magic is simply Mercury Marine doing what it does best - creating game-changing, incomparable engines that elevate boating to the next level.  
 The new Mercury 150 hp FourStroke has almost 15 percent fewer parts than Suzuki's 150 Four-stroke and almost 18 percent fewer parts than Yamaha 150 hp Four-stroke engine.  
 A smaller compact design and a lighter weight reduces the overall package weight of the boat, which, depending on the hull, will improve performance and efficiency.  
 The new Mercury 150 hp FourStroke is 454 pounds and is only 22 pounds heavier than the 150 OptiMax (at 432 pounds).  
 This makes the new 150 hp FourStroke a great fit not only for new boat packages, but also repower, even on older boats which could not handle the weight of heavier competitive 4-Strokes.  
Vibration Management System
 The Mercury 150 hp FourStroke incorporates an exclusive and unique Focused Mount System which is 22 percent heavier and tougher than those found on competitive 150 hp outboards.  
 The upper mounts are at a much wider 45-degree angle from the engine's center of gravity and in a location where they can operate under ambient temperature conditions, rather than under the higher heat radiating from the immediate powerhead area.  
 Placing the mounts farther away from the powerhead significantly reduces mount temperature and increases mount durability. Angling the mounts significantly reduces vibration transmitted to the boat, at all points in the power band, but especially at transient points from a fast idle to where the boat is coming on plane.  
 Higher durability and significantly reduced vibration mean a more pleasurable boating experience all around.  
Sound Management
 As part of its world-class sound management technology, the Mercury 150 hp FourStroke features a special idle exhaust relief system:  
    Simple baffle design  
    Low pass acoustic filter to weaken high frequency exhaust noise at idle speeds  
 Quiet operation at low speeds makes it easier to converse while in the boat or during a long day of trolling.  
Built for Salt
 Saltwater is a marine engine's worst nightmare.  
 To survive wide-ranging salinity, temperature, and humidity levels requires expert marine understanding, technology, cost, and equipment. No other company invests as much time, energy, and dollars in their products to deliver an engine with the long-term corrosion-fighting characteristics:  
    Lowest copper content aluminum - Mercury XK360 is the most corrosion-resistant alloy on the market.  
    Exclusive MercFusion paint system features an Electro-Deposition Paint process, which electronically bonds paint to metal throughout the engine, even inside internal water passages.  
    Waterproof electrical systems and connectors sit under a tightly sealed cowling system that uses a baffle to let air enter the cowl but forces water to drain out.  
Two-Stroke Torque - FourStroke Efficiency
 What do you get when you combine class-leading displacement with the lightest 150 hp FourStroke on the market? Mercury's new definition of performance.  
    3.0L displacement delivers the powerful torque needed to launch your boat onto plane and provide responsive mid-range acceleration.  
    An exceptional power-to-weight ratio means outstanding fuel economy and more on-water time between fill-ups.  
    A large 4.9 inch gearcase easily lifts heavy boats better than smaller gearcases found on competitive FourStrokes, significantly improving boat handling from slower cruising speeds to full throttle runs.  
All Amped Up
 The Mercury 150 hp FourStroke's marine hardened "on-demand" alternator is a 60 Amp (756 Watt) high-output external unit. In fact, this alternator already produces over 2/3 of its charging power at just 1,000 RPM... perfect for keeping batteries fully charged while trolling or on that leisurely cruise.  
    Belt-driven means less heat and weight  
    Provides power only when needed  
    Fully regulated at 14.2 volts  
    Hard anodized for best-in-class corrosion protection  
More Time on the Water - Less Time in the Shop
 Under the cowl, the new 150 hp FourStroke has a convenient maintenance label highlighting basic maintenance intervals and requirements for the "do-it-yourself's". This label features a QR code that links to a series of step-by-step videos demonstrating just how easy it is to perform routine maintenance such as oil and gear lube changes.  
    QR code linking to videos, local dealers, and a Mercury-direct hotline  
    No-spill oil change system and easy-access fuel filter  
    The only FourStroke available with a valve train that requires NO maintenance over the life of the engine  
Perfect for Repower
 Mercury's new 150 FourStroke has far less transom well interference and a lower profile making it easy to fish over and around, or to mount under tight-fitting engine wells.  
 At a weight approaching that of a 2-Stroke, the new 150 FourStroke is the lightest of its kind, and will easily repower most older hulls not designed to accommodate the weight of competitive 150 4-Strokes.  
 Flexible enough to accommodate mechanical or hydraulic steering, the Big Tiller system, mechanical control / cables, and a full complement of either analog or SmartCraft gauges - this new 150 FourStroke is equally suited to the most basic or the most sophisticated of repower jobs.  
*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.